mirror of
https://github.com/ipedrazas/drone-helm.git
synced 2026-06-04 18:24:13 +08:00
Merge pull request #69 from josmo/multiple-updates
build changes - go dep, doc updates, purge fixed, namespace plugin moved
This commit is contained in:
+86
@@ -0,0 +1,86 @@
|
||||
workspace:
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||||
base: /go
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||||
path: src/github.com/${DRONE_REPO_OWNER}/${DRONE_REPO_NAME}
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||||
pipeline:
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||||
deps:
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||||
image: golang:1.10
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||||
pull: true
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||||
commands:
|
||||
- go get -u github.com/golang/dep/cmd/dep
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- dep ensure
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||||
|
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test:
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image: golang:1.10
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||||
commands:
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||||
- go vet
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||||
- go test ./... -cover -coverprofile=coverage.out
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|
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build_linux_amd64:
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image: golang:1.10
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group: build
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environment:
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- GOOS=linux
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- GOARCH=amd64
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- CGO_ENABLED=0
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commands:
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- |
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if test "${DRONE_TAG}" = ""; then
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go build -v -ldflags "-X main.build=${DRONE_BUILD_NUMBER}" -a -o release/linux/amd64/${DRONE_REPO_NAME}
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else
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go build -v -ldflags "-X main.version=${DRONE_TAG##v} -X main.build=${DRONE_BUILD_NUMBER}" -a -o release/linux/amd64/${DRONE_REPO_NAME}
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fi
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# - go build -v -ldflags "-X main.build=${DRONE_BUILD_NUMBER}" -a -o release/linux/amd64/drone-helm
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# build_linux_arm64:
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# image: golang:1.10
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# group: build
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# environment:
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# - GOOS=linux
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# - GOARCH=arm64
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# - CGO_ENABLED=0
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# commands:
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# - go build -v -ldflags "-X main.build=${DRONE_BUILD_NUMBER}" -a -o release/linux/arm64/drone-helm
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#
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# build_linux_arm:
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# image: golang:1.10
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# group: build
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# environment:
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# - GOOS=linux
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# - GOARCH=arm
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# - CGO_ENABLED=0
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# - GOARM=7
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# commands:
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# - go build -v -ldflags "-X main.build=${DRONE_BUILD_NUMBER}" -a -o release/linux/arm/drone-helm
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publish_linux_amd64:
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image: plugins/docker
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group: publish
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auto_tag: true
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secrets: [ docker_password, docker_username, plugin_repo ]
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dockerfile: Dockerfile
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when:
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event: [ tag, push ]
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# publish_linux_arm64:
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# image: plugins/docker
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# group: publish
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# username: josmo
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# repo: peloton/drone-helm
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# auto_tag: true
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# auto_tag_suffix: linux-arm64
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# secrets: [ docker_password ]
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# dockerfile: Dockerfile.arm64
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# when:
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# event: [ tag, push ]
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#
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# publish_linux_arm:
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# image: plugins/docker
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# group: publish
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# username: josmo
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# repo: peloton/drone-helm
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# auto_tag: true
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# auto_tag_suffix: linux-arm
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# secrets: [ docker_password ]
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# dockerfile: Dockerfile.arm
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# when:
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# event: [ tag, push ]
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+3
-1
@@ -27,4 +27,6 @@ drone-helm
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*.test
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*.out
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.vscode
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.idea
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||||
.idea
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||||
vendor
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release
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@@ -0,0 +1,230 @@
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||||
### Simple Usage
|
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|
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For example, this configuration will deploy my-app using a chart located in the repo called `my-chart`
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|
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```YAML
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pipeline:
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helm_deploy:
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image: quay.io/ipedrazas/drone-helm
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skip_tls_verify: true
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chart: ./charts/my-chart
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release: ${DRONE_BRANCH}
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values: secret.password=${SECRET_PASSWORD},image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
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prefix: STAGING
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debug: true
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wait: true
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when:
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branch: [master]
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```
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|
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Last update of Drone expect you to declare the secrets you want to use:
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|
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```YAML
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pipeline:
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helm_deploy:
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image: quay.io/ipedrazas/drone-helm
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chart: ./chart/blog
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release: ${DRONE_BRANCH}-blog
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values: image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
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prefix: PROD
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secrets: [ prod_api_server, prod_kubernetes_token ]
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when:
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branch: [master]
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||||
```
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||||
|
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Use Kubernetes Certificate Authority Data. Just add the `<prefix>_kubernetes_certificate` secret
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|
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```diff
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helm_deploy:
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image: quay.io/ipedrazas/drone-helm
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chart: ./chart/blog
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release: ${DRONE_BRANCH}-blog
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values: image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
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prefix: PROD
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- secrets: [ prod_api_server, prod_kubernetes_token ]
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+ secrets: [ prod_api_server, prod_kubernetes_token, prod_kubernetes_certificate ]
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when:
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branch: [master]
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||||
```
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||||
|
||||
### Using Values and Value files
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||||
Values can be passed using the `values_files` key. Use this option to define your values in a set of files
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||||
and pass them to `helm`. This option trigger the `-f` or ``--values`` flag in `helm`:
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||||
|
||||
```plain
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||||
--values valueFiles specify values in a YAML file (can specify multiple) (default [])
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||||
```
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||||
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||||
For example:
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|
||||
```YAML
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pipeline:
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helm_deploy:
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image: quay.io/ipedrazas/drone-helm
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skip_tls_verify: true
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chart: ./charts/my-chart
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release: ${DRONE_BRANCH}
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values_files: ["global-values.yaml", "myenv-values.yaml"]
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when:
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branch: [master]
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||||
```
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||||
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||||
### Using private Repositories
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Charts can also be fetched from your own private Chart Repository. `helm_repos` accepts a comma separated list of key value pairs where the key is the repository name and the value is the repository url.
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||||
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||||
For Example:
|
||||
|
||||
```YAML
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||||
pipeline:
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||||
helm_deploy_staging:
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||||
image: quay.io/ipedrazas/drone-helm
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||||
skip_tls_verify: true
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||||
helm_repos: hb-charts=http://helm-charts.honestbee.com
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||||
chart: hb-charts/hello-world
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||||
values: image.repository=quay.io/honestbee/hello-drone-helm,image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
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||||
release: ${DRONE_REPO_NAME}-${DRONE_BRANCH}
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||||
prefix: STAGING
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||||
when:
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||||
branch:
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||||
exclude: [ master ]
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||||
```
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||||
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||||
## Updating Chart dependencies
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||||
|
||||
In some cases, the local Chart might contain external dependencies defined in `./charts/my-chart/requirements.yaml`, e.g.:
|
||||
|
||||
```YAML
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||||
dependencies:
|
||||
- name: redis
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||||
version: 3.3.6
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||||
repository: '@stable'
|
||||
```
|
||||
|
||||
To restore these dependecies before the deployment `update_dependencies` parameter should be used, e.g.:
|
||||
|
||||
```YAML
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||||
pipeline:
|
||||
helm_deploy:
|
||||
image: quay.io/ipedrazas/drone-helm
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||||
skip_tls_verify: true
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||||
chart: ./charts/my-chart
|
||||
update_dependencies: true
|
||||
release: ${DRONE_BRANCH}
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||||
values_files: ["global-values.yaml", "myenv-values.yaml"]
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||||
when:
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||||
branch: [master]
|
||||
```
|
||||
|
||||
## Drone Secrets
|
||||
|
||||
There are two secrets you have to create (Note that if you specify the prefix, your secrets have to be created using that prefix):
|
||||
|
||||
```bash
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||||
drone secret add --image=quay.io/ipedrazas/drone-helm \
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||||
your-user/your-repo STAGING_API_SERVER https://mykubernetesapiserver
|
||||
|
||||
drone secret add --image=quay.io/ipedrazas/drone-helm \
|
||||
your-user/your-repo STAGING_KUBERNETES_TOKEN eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJrdWJ...
|
||||
|
||||
drone secret add --image=quay.io/ipedrazas/drone-helm \
|
||||
your-user/your-repo STAGING_SECRET_PASSWORD Sup3rS3cr3t
|
||||
```
|
||||
|
||||
`Prefix` helps you to use the same block in different environments:
|
||||
|
||||
```YAML
|
||||
pipeline:
|
||||
helm_deploy_staging:
|
||||
image: quay.io/ipedrazas/drone-helm
|
||||
skip_tls_verify: true
|
||||
chart: ./charts/my-chart
|
||||
release: ${DRONE_BRANCH}
|
||||
values: secret.password=${SECRET_PASSWORD},image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
|
||||
prefix: STAGING
|
||||
debug: true
|
||||
wait: true
|
||||
when:
|
||||
branch:
|
||||
exclude: [ master ]
|
||||
|
||||
pipeline_production:
|
||||
helm_deploy:
|
||||
image: quay.io/ipedrazas/drone-helm
|
||||
skip_tls_verify: true
|
||||
chart: ./charts/my-chart
|
||||
release: ${DRONE_BRANCH}
|
||||
values: secret.password=${SECRET_PASSWORD},image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
|
||||
prefix: PROD
|
||||
debug: true
|
||||
wait: true
|
||||
when:
|
||||
branch: [master]
|
||||
```
|
||||
|
||||
This last block defines how the plugin will deploy
|
||||
|
||||
## Testing with Minikube
|
||||
|
||||
To test the plugin, you can run `minikube` and just run the docker image as follows:
|
||||
|
||||
By using the docker daemon of minikube we can test local builds without having to push to a registry:
|
||||
|
||||
```bash
|
||||
eval $(minikube docker-env)
|
||||
```
|
||||
|
||||
Build the image locally
|
||||
|
||||
```bash
|
||||
./build.sh
|
||||
```
|
||||
|
||||
Get the token for the default service account in the default namespace:
|
||||
|
||||
```bash
|
||||
KUBERNETES_TOKEN=$(kubectl get secret $(kubectl get sa default -o jsonpath='{.secrets[].name}{"\n"}') -o jsonpath="{.data.token}" | base64 -D)
|
||||
```
|
||||
|
||||
## Advanced customisations and debugging
|
||||
|
||||
This plugin installs [Tiller](https://github.com/kubernetes/helm/blob/master/docs/architecture.md) in the cluster, if you want to specify the namespace where `tiller` ins installed, use the `tiller_ns` attribute.
|
||||
|
||||
The following example will install `tiller` in the `operations` namespace:
|
||||
|
||||
```YAML
|
||||
pipeline_production:
|
||||
helm_deploy:
|
||||
image: quay.io/ipedrazas/drone-helm
|
||||
skip_tls_verify: true
|
||||
chart: ./charts/my-chart
|
||||
release: ${DRONE_BRANCH}
|
||||
values: image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
|
||||
prefix: PROD
|
||||
tiller_ns: operations
|
||||
when:
|
||||
branch: [master]
|
||||
```
|
||||
|
||||
There's an option to do a `dry-run` in case you want to verify that the secrets and envvars are replaced correctly. Just add the attribute `dry-run` to true:
|
||||
|
||||
```YAML
|
||||
pipeline_production:
|
||||
helm_deploy:
|
||||
image: quay.io/ipedrazas/drone-helm
|
||||
skip_tls_verify: true
|
||||
chart: ./charts/my-chart
|
||||
release: ${DRONE_BRANCH}
|
||||
values: image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
|
||||
prefix: STAGING
|
||||
dry-run:true
|
||||
when:
|
||||
branch: [master]
|
||||
```
|
||||
|
||||
Happy Helming!
|
||||
|
||||
## Known issues
|
||||
|
||||
* Drone secrets that are part of `values` can be leaked in debug mode and in case of error as the whole helm command will be printed in the logs. See #52
|
||||
+3
-26
@@ -1,26 +1,3 @@
|
||||
#
|
||||
# ----- Go Builder Image ------
|
||||
#
|
||||
FROM golang:1.8-alpine AS builder
|
||||
|
||||
RUN apk add --no-cache git
|
||||
|
||||
# set working directory
|
||||
RUN mkdir -p /go/src/drone-helm
|
||||
WORKDIR /go/src/drone-helm
|
||||
|
||||
# copy sources
|
||||
COPY . .
|
||||
|
||||
# add dependencies
|
||||
RUN go get
|
||||
|
||||
# run tests
|
||||
RUN go test -v
|
||||
|
||||
# build binary
|
||||
RUN go build -v -o "/drone-helm"
|
||||
|
||||
#
|
||||
# ------ Drone-Helm plugin image ------
|
||||
#
|
||||
@@ -28,13 +5,13 @@ RUN go build -v -o "/drone-helm"
|
||||
FROM alpine:3.6
|
||||
MAINTAINER Ivan Pedrazas <ipedrazas@gmail.com>
|
||||
|
||||
# Helm version: can be passed at build time (default to v2.6.0)
|
||||
# Helm version: can be passed at build time
|
||||
ARG VERSION
|
||||
ENV VERSION ${VERSION:-v2.9.1}
|
||||
ENV FILENAME helm-${VERSION}-linux-amd64.tar.gz
|
||||
|
||||
ARG KUBECTL
|
||||
ENV KUBECTL ${KUBECTL:-v1.10.2}
|
||||
ENV KUBECTL ${KUBECTL:-v1.11.0}
|
||||
|
||||
RUN set -ex \
|
||||
&& apk add --no-cache curl ca-certificates \
|
||||
@@ -49,7 +26,7 @@ RUN set -ex \
|
||||
LABEL description="Kubectl and Helm."
|
||||
LABEL base="alpine"
|
||||
|
||||
COPY --from=builder /drone-helm /bin/drone-helm
|
||||
ADD release/linux/amd64/drone-helm /bin/
|
||||
COPY kubeconfig /root/.kube/kubeconfig
|
||||
|
||||
ENTRYPOINT [ "/bin/drone-helm" ]
|
||||
|
||||
Generated
+56
@@ -0,0 +1,56 @@
|
||||
# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
|
||||
|
||||
|
||||
[[projects]]
|
||||
digest = "1:3b8f5d88e2b182b77f04355ed40c8810e516913bedc51b4ffd17ec506613a90e"
|
||||
name = "github.com/Sirupsen/logrus"
|
||||
packages = ["."]
|
||||
pruneopts = "UT"
|
||||
revision = "a3f95b5c423586578a4e099b11a46c2479628cac"
|
||||
version = "1.0.2"
|
||||
|
||||
[[projects]]
|
||||
branch = "master"
|
||||
digest = "1:315c5f2f60c76d89b871c73f9bd5fe689cad96597afd50fb9992228ef80bdd34"
|
||||
name = "github.com/alecthomas/template"
|
||||
packages = [
|
||||
".",
|
||||
"parse",
|
||||
]
|
||||
pruneopts = "UT"
|
||||
revision = "a0175ee3bccc567396460bf5acd36800cb10c49c"
|
||||
|
||||
[[projects]]
|
||||
digest = "1:d8cadef127871902b9aaa711a74bf6dd74feeb3f97b67c31b9dcdd02b8284b45"
|
||||
name = "github.com/joho/godotenv"
|
||||
packages = ["."]
|
||||
pruneopts = "UT"
|
||||
revision = "726cc8b906e3d31c70a9671c90a13716a8d3f50d"
|
||||
version = "v1.1"
|
||||
|
||||
[[projects]]
|
||||
digest = "1:01d3c3dfb7ef9da24cd00cbd5b9e2c147fa7a3f44a83028bc737da9cac7ed60b"
|
||||
name = "github.com/urfave/cli"
|
||||
packages = ["."]
|
||||
pruneopts = "UT"
|
||||
revision = "0bdeddeeb0f650497d603c4ad7b20cfe685682f6"
|
||||
version = "v1.19.1"
|
||||
|
||||
[[projects]]
|
||||
digest = "1:1823f145d46c33abc0d1b15711d24839b2266f8e23c2b8dca1d35be3b0a84029"
|
||||
name = "golang.org/x/sys"
|
||||
packages = ["unix"]
|
||||
pruneopts = "UT"
|
||||
revision = "c4489faa6e5ab84c0ef40d6ee878f7a030281f0f"
|
||||
|
||||
[solve-meta]
|
||||
analyzer-name = "dep"
|
||||
analyzer-version = 1
|
||||
input-imports = [
|
||||
"github.com/Sirupsen/logrus",
|
||||
"github.com/alecthomas/template",
|
||||
"github.com/joho/godotenv",
|
||||
"github.com/urfave/cli",
|
||||
]
|
||||
solver-name = "gps-cdcl"
|
||||
solver-version = 1
|
||||
+47
@@ -0,0 +1,47 @@
|
||||
# Gopkg.toml example
|
||||
#
|
||||
# Refer to https://golang.github.io/dep/docs/Gopkg.toml.html
|
||||
# for detailed Gopkg.toml documentation.
|
||||
#
|
||||
# required = ["github.com/user/thing/cmd/thing"]
|
||||
# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
|
||||
#
|
||||
# [[constraint]]
|
||||
# name = "github.com/user/project"
|
||||
# version = "1.0.0"
|
||||
#
|
||||
# [[constraint]]
|
||||
# name = "github.com/user/project2"
|
||||
# branch = "dev"
|
||||
# source = "github.com/myfork/project2"
|
||||
#
|
||||
# [[override]]
|
||||
# name = "github.com/x/y"
|
||||
# version = "2.4.0"
|
||||
#
|
||||
# [prune]
|
||||
# non-go = false
|
||||
# go-tests = true
|
||||
# unused-packages = true
|
||||
|
||||
ignored = ["sort"]
|
||||
|
||||
[[constraint]]
|
||||
name = "github.com/Sirupsen/logrus"
|
||||
version = "1.0.2"
|
||||
|
||||
[[constraint]]
|
||||
branch = "master"
|
||||
name = "github.com/alecthomas/template"
|
||||
|
||||
[[constraint]]
|
||||
name = "github.com/joho/godotenv"
|
||||
version = "1.1.0"
|
||||
|
||||
[[constraint]]
|
||||
name = "github.com/urfave/cli"
|
||||
version = "1.19.1"
|
||||
|
||||
[prune]
|
||||
go-tests = true
|
||||
unused-packages = true
|
||||
@@ -1,202 +1,19 @@
|
||||
# Helm (Kubernetes) plugin for drone.io
|
||||
|
||||
[](https://build.kube.camp/ipedrazas/drone-helm)
|
||||
[](https://drone.pelo.tech/josmo/drone-helm)
|
||||
[](http://godoc.org/github.com/josmo/drone-helm)
|
||||
[](https://goreportcard.com/report/github.com/josmo/drone-helm)
|
||||
[](https://microbadger.com/images/peloton/drone-helm "Get your own image badge on microbadger.com")
|
||||
|
||||
This plugin allows to deploy a [Helm](https://github.com/kubernetes/helm) chart into a [Kubernetes](https://github.com/kubernetes/kubernetes) cluster.
|
||||
|
||||
* Current `helm` version: 2.6.0
|
||||
* Current `kubectl` version: 1.6.6
|
||||
* Current `helm` version: 2.9.1
|
||||
* Current `kubectl` version: 1.11.0
|
||||
|
||||
## Drone Pipeline Usage
|
||||
|
||||
### Simple Usage
|
||||
For the usage information and a listing of the available options please take a look at [the docs](DOCS.md).
|
||||
|
||||
For example, this configuration will deploy my-app using a chart located in the repo called `my-chart`
|
||||
|
||||
```YAML
|
||||
pipeline:
|
||||
helm_deploy:
|
||||
image: quay.io/ipedrazas/drone-helm
|
||||
skip_tls_verify: true
|
||||
chart: ./charts/my-chart
|
||||
release: ${DRONE_BRANCH}
|
||||
values: secret.password=${SECRET_PASSWORD},image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
|
||||
prefix: STAGING
|
||||
debug: true
|
||||
wait: true
|
||||
when:
|
||||
branch: [master]
|
||||
```
|
||||
|
||||
Last update of Drone expect you to declare the secrets you want to use:
|
||||
|
||||
```YAML
|
||||
pipeline:
|
||||
helm_deploy:
|
||||
image: quay.io/ipedrazas/drone-helm
|
||||
chart: ./chart/blog
|
||||
release: ${DRONE_BRANCH}-blog
|
||||
values: image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
|
||||
prefix: PROD
|
||||
secrets: [ prod_api_server, prod_kubernetes_token ]
|
||||
when:
|
||||
branch: [master]
|
||||
```
|
||||
|
||||
Use Kubernetes Certificate Authority Data. Just add the `<prefix>_kubernetes_certificate` secret
|
||||
|
||||
```diff
|
||||
helm_deploy:
|
||||
image: quay.io/ipedrazas/drone-helm
|
||||
chart: ./chart/blog
|
||||
release: ${DRONE_BRANCH}-blog
|
||||
values: image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
|
||||
prefix: PROD
|
||||
- secrets: [ prod_api_server, prod_kubernetes_token ]
|
||||
+ secrets: [ prod_api_server, prod_kubernetes_token, prod_kubernetes_certificate ]
|
||||
when:
|
||||
branch: [master]
|
||||
```
|
||||
|
||||
### Using Values and Value files
|
||||
|
||||
Values can be passed using the `values_files` key. Use this option to define your values in a set of files
|
||||
and pass them to `helm`. This option trigger the `-f` or ``--values`` flag in `helm`:
|
||||
|
||||
```plain
|
||||
--values valueFiles specify values in a YAML file (can specify multiple) (default [])
|
||||
```
|
||||
|
||||
For example:
|
||||
|
||||
```YAML
|
||||
pipeline:
|
||||
helm_deploy:
|
||||
image: quay.io/ipedrazas/drone-helm
|
||||
skip_tls_verify: true
|
||||
chart: ./charts/my-chart
|
||||
release: ${DRONE_BRANCH}
|
||||
values_files: ["global-values.yaml", "myenv-values.yaml"]
|
||||
when:
|
||||
branch: [master]
|
||||
```
|
||||
|
||||
### Using private Repositories
|
||||
|
||||
Charts can also be fetched from your own private Chart Repository. `helm_repos` accepts a comma separated list of key value pairs where the key is the repository name and the value is the repository url.
|
||||
|
||||
For Example:
|
||||
|
||||
```YAML
|
||||
pipeline:
|
||||
helm_deploy_staging:
|
||||
image: quay.io/ipedrazas/drone-helm
|
||||
skip_tls_verify: true
|
||||
helm_repos: hb-charts=http://helm-charts.honestbee.com
|
||||
chart: hb-charts/hello-world
|
||||
values: image.repository=quay.io/honestbee/hello-drone-helm,image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
|
||||
release: ${DRONE_REPO_NAME}-${DRONE_BRANCH}
|
||||
prefix: STAGING
|
||||
when:
|
||||
branch:
|
||||
exclude: [ master ]
|
||||
```
|
||||
|
||||
## Updating Chart dependencies
|
||||
|
||||
In some cases, the local Chart might contain external dependencies defined in `./charts/my-chart/requirements.yaml`, e.g.:
|
||||
|
||||
```YAML
|
||||
dependencies:
|
||||
- name: redis
|
||||
version: 3.3.6
|
||||
repository: '@stable'
|
||||
```
|
||||
|
||||
To restore these dependecies before the deployment `update_dependencies` parameter should be used, e.g.:
|
||||
|
||||
```YAML
|
||||
pipeline:
|
||||
helm_deploy:
|
||||
image: quay.io/ipedrazas/drone-helm
|
||||
skip_tls_verify: true
|
||||
chart: ./charts/my-chart
|
||||
update_dependencies: true
|
||||
release: ${DRONE_BRANCH}
|
||||
values_files: ["global-values.yaml", "myenv-values.yaml"]
|
||||
when:
|
||||
branch: [master]
|
||||
```
|
||||
|
||||
## Drone Secrets
|
||||
|
||||
There are two secrets you have to create (Note that if you specify the prefix, your secrets have to be created using that prefix):
|
||||
|
||||
```bash
|
||||
drone secret add --image=quay.io/ipedrazas/drone-helm \
|
||||
your-user/your-repo STAGING_API_SERVER https://mykubernetesapiserver
|
||||
|
||||
drone secret add --image=quay.io/ipedrazas/drone-helm \
|
||||
your-user/your-repo STAGING_KUBERNETES_TOKEN eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJrdWJ...
|
||||
|
||||
drone secret add --image=quay.io/ipedrazas/drone-helm \
|
||||
your-user/your-repo STAGING_SECRET_PASSWORD Sup3rS3cr3t
|
||||
```
|
||||
|
||||
`Prefix` helps you to use the same block in different environments:
|
||||
|
||||
```YAML
|
||||
pipeline:
|
||||
helm_deploy_staging:
|
||||
image: quay.io/ipedrazas/drone-helm
|
||||
skip_tls_verify: true
|
||||
chart: ./charts/my-chart
|
||||
release: ${DRONE_BRANCH}
|
||||
values: secret.password=${SECRET_PASSWORD},image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
|
||||
prefix: STAGING
|
||||
debug: true
|
||||
wait: true
|
||||
when:
|
||||
branch:
|
||||
exclude: [ master ]
|
||||
|
||||
pipeline_production:
|
||||
helm_deploy:
|
||||
image: quay.io/ipedrazas/drone-helm
|
||||
skip_tls_verify: true
|
||||
chart: ./charts/my-chart
|
||||
release: ${DRONE_BRANCH}
|
||||
values: secret.password=${SECRET_PASSWORD},image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
|
||||
prefix: PROD
|
||||
debug: true
|
||||
wait: true
|
||||
when:
|
||||
branch: [master]
|
||||
```
|
||||
|
||||
This last block defines how the plugin will deploy
|
||||
|
||||
## Testing with Minikube
|
||||
|
||||
To test the plugin, you can run `minikube` and just run the docker image as follows:
|
||||
|
||||
By using the docker daemon of minikube we can test local builds without having to push to a registry:
|
||||
|
||||
```bash
|
||||
eval $(minikube docker-env)
|
||||
```
|
||||
|
||||
Build the image locally
|
||||
|
||||
```bash
|
||||
./build.sh
|
||||
```
|
||||
|
||||
Get the token for the default service account in the default namespace:
|
||||
|
||||
```bash
|
||||
KUBERNETES_TOKEN=$(kubectl get secret $(kubectl get sa default -o jsonpath='{.secrets[].name}{"\n"}') -o jsonpath="{.data.token}" | base64 -D)
|
||||
```
|
||||
|
||||
Run the local image (or replace `drone-helm` with `quay.io/ipedrazas/drone-helm`:
|
||||
|
||||
@@ -215,44 +32,12 @@ docker run --rm \
|
||||
quay.io/ipedrazas/drone-helm
|
||||
```
|
||||
|
||||
## Advanced customisations and debugging
|
||||
### Contribution
|
||||
|
||||
This plugin installs [Tiller](https://github.com/kubernetes/helm/blob/master/docs/architecture.md) in the cluster, if you want to specify the namespace where `tiller` ins installed, use the `tiller_ns` attribute.
|
||||
This repo is setup in a way that if you enable a personal drone server to build your fork it will
|
||||
build and publish your image (makes it easier to test PRs and use the image till the contributions get merged)
|
||||
|
||||
* Build local ```DRONE_REPO_OWNER=ipedrazas DRONE_REPO_NAME=drone-helm drone exec```
|
||||
* on your server just make sure you have DOCKER_USERNAME, DOCKER_PASSWORD, and PLUGIN_REPO set as secrets
|
||||
|
||||
|
||||
The following example will install `tiller` in the `operations` namespace:
|
||||
|
||||
```YAML
|
||||
pipeline_production:
|
||||
helm_deploy:
|
||||
image: quay.io/ipedrazas/drone-helm
|
||||
skip_tls_verify: true
|
||||
chart: ./charts/my-chart
|
||||
release: ${DRONE_BRANCH}
|
||||
values: image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
|
||||
prefix: PROD
|
||||
tiller_ns: operations
|
||||
when:
|
||||
branch: [master]
|
||||
```
|
||||
|
||||
There's an option to do a `dry-run` in case you want to verify that the secrets and envvars are replaced correctly. Just add the attribute `dry-run` to true:
|
||||
|
||||
```YAML
|
||||
pipeline_production:
|
||||
helm_deploy:
|
||||
image: quay.io/ipedrazas/drone-helm
|
||||
skip_tls_verify: true
|
||||
chart: ./charts/my-chart
|
||||
release: ${DRONE_BRANCH}
|
||||
values: image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
|
||||
prefix: STAGING
|
||||
dry-run:true
|
||||
when:
|
||||
branch: [master]
|
||||
```
|
||||
|
||||
Happy Helming!
|
||||
|
||||
## Known issues
|
||||
|
||||
* Drone secrets that are part of `values` can be leaked in debug mode and in case of error as the whole helm command will be printed in the logs. See #52
|
||||
|
||||
@@ -4,5 +4,7 @@ set -e
|
||||
|
||||
export GOOS=linux
|
||||
export GOARCH=386
|
||||
go get -u github.com/golang/dep/cmd/dep
|
||||
dep ensure
|
||||
go build
|
||||
docker build -t drone-helm .
|
||||
|
||||
@@ -2,21 +2,24 @@ package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
|
||||
"github.com/Sirupsen/logrus"
|
||||
"github.com/joho/godotenv"
|
||||
"github.com/josmo/drone-helm/plugin"
|
||||
"github.com/urfave/cli"
|
||||
"os"
|
||||
)
|
||||
|
||||
var build = "0" // build number set at compile-time
|
||||
var (
|
||||
version = "0.0.0"
|
||||
build = "0"
|
||||
)
|
||||
|
||||
func main() {
|
||||
app := cli.NewApp()
|
||||
app.Name = "helm plugin"
|
||||
app.Usage = "helm plugin"
|
||||
app.Action = run
|
||||
app.Version = fmt.Sprintf("1.0.%s", build)
|
||||
app.Version = fmt.Sprintf("%s+%s",version, build)
|
||||
app.Flags = []cli.Flag{
|
||||
cli.StringFlag{
|
||||
Name: "helm_command",
|
||||
@@ -149,37 +152,38 @@ func run(c *cli.Context) error {
|
||||
if c.String("env-file") != "" {
|
||||
_ = godotenv.Load(c.String("env-file"))
|
||||
}
|
||||
plugin := Plugin{
|
||||
Config: Config{
|
||||
APIServer: c.String("api_server"),
|
||||
Token: c.String("token"),
|
||||
Certificate: c.String("certificate"),
|
||||
ServiceAccount: c.String("service-account"),
|
||||
KubeConfig: c.String("kube-config"),
|
||||
HelmCommand: c.String("helm_command"),
|
||||
Namespace: c.String("namespace"),
|
||||
SkipTLSVerify: c.Bool("skip_tls_verify"),
|
||||
Values: c.String("values"),
|
||||
ValuesFiles: c.String("values_files"),
|
||||
Release: c.String("release"),
|
||||
HelmRepos: c.StringSlice("helm_repos"),
|
||||
Chart: c.String("chart"),
|
||||
Version: c.String("chart-version"),
|
||||
Debug: c.Bool("debug"),
|
||||
DryRun: c.Bool("dry-run"),
|
||||
Secrets: c.StringSlice("secrets"),
|
||||
Prefix: c.String("prefix"),
|
||||
TillerNs: c.String("tiller-ns"),
|
||||
Wait: c.Bool("wait"),
|
||||
RecreatePods: c.Bool("recreate-pods"),
|
||||
ClientOnly: c.Bool("client-only"),
|
||||
CanaryImage: c.Bool("canary-image"),
|
||||
Upgrade: c.Bool("upgrade"),
|
||||
ReuseValues: c.Bool("reuse-values"),
|
||||
Timeout: c.String("timeout"),
|
||||
Force: c.Bool("force"),
|
||||
UpdateDependencies: c.Bool("update-dependencies"),
|
||||
p := plugin.Plugin{
|
||||
Config: plugin.Config{
|
||||
APIServer: c.String("api_server"),
|
||||
Token: c.String("token"),
|
||||
Certificate: c.String("certificate"),
|
||||
ServiceAccount: c.String("service-account"),
|
||||
KubeConfig: c.String("kube-config"),
|
||||
HelmCommand: c.String("helm_command"),
|
||||
Purge: c.Bool("purge"),
|
||||
Namespace: c.String("namespace"),
|
||||
SkipTLSVerify: c.Bool("skip_tls_verify"),
|
||||
Values: c.String("values"),
|
||||
ValuesFiles: c.String("values_files"),
|
||||
Release: c.String("release"),
|
||||
HelmRepos: c.StringSlice("helm_repos"),
|
||||
Chart: c.String("chart"),
|
||||
Version: c.String("chart-version"),
|
||||
Debug: c.Bool("debug"),
|
||||
DryRun: c.Bool("dry-run"),
|
||||
Secrets: c.StringSlice("secrets"),
|
||||
Prefix: c.String("prefix"),
|
||||
TillerNs: c.String("tiller-ns"),
|
||||
Wait: c.Bool("wait"),
|
||||
RecreatePods: c.Bool("recreate-pods"),
|
||||
ClientOnly: c.Bool("client-only"),
|
||||
CanaryImage: c.Bool("canary-image"),
|
||||
Upgrade: c.Bool("upgrade"),
|
||||
ReuseValues: c.Bool("reuse-values"),
|
||||
Timeout: c.String("timeout"),
|
||||
Force: c.Bool("force"),
|
||||
UpdateDependencies: c.Bool("update-dependencies"),
|
||||
},
|
||||
}
|
||||
return plugin.Exec()
|
||||
return p.Exec()
|
||||
}
|
||||
|
||||
@@ -1,4 +1,4 @@
|
||||
package main
|
||||
package plugin
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
@@ -19,35 +19,35 @@ var KUBECONFIG = "/root/.kube/kubeconfig"
|
||||
type (
|
||||
// Config maps the params we need to run Helm
|
||||
Config struct {
|
||||
APIServer string `json:"api_server"`
|
||||
Token string `json:"token"`
|
||||
Certificate string `json:"certificate"`
|
||||
ServiceAccount string `json:"service_account"`
|
||||
KubeConfig string `json:"kube_config"`
|
||||
HelmCommand string `json:"helm_command"`
|
||||
SkipTLSVerify bool `json:"tls_skip_verify"`
|
||||
Namespace string `json:"namespace"`
|
||||
Release string `json:"release"`
|
||||
Chart string `json:"chart"`
|
||||
Version string `json:"version"`
|
||||
Values string `json:"values"`
|
||||
ValuesFiles string `json:"values_files"`
|
||||
Debug bool `json:"debug"`
|
||||
DryRun bool `json:"dry_run"`
|
||||
Secrets []string `json:"secrets"`
|
||||
Prefix string `json:"prefix"`
|
||||
TillerNs string `json:"tiller_ns"`
|
||||
Wait bool `json:"wait"`
|
||||
RecreatePods bool `json:"recreate_pods"`
|
||||
Upgrade bool `json:"upgrade"`
|
||||
CanaryImage bool `json:"canary_image"`
|
||||
ClientOnly bool `json:"client_only"`
|
||||
ReuseValues bool `json:"reuse_values"`
|
||||
Timeout string `json:"timeout"`
|
||||
Force bool `json:"force"`
|
||||
HelmRepos []string `json:"helm_repos"`
|
||||
Purge bool `json:"purge"`
|
||||
UpdateDependencies bool `json:"update_dependencies"`
|
||||
APIServer string `json:"api_server"`
|
||||
Token string `json:"token"`
|
||||
Certificate string `json:"certificate"`
|
||||
ServiceAccount string `json:"service_account"`
|
||||
KubeConfig string `json:"kube_config"`
|
||||
HelmCommand string `json:"helm_command"`
|
||||
SkipTLSVerify bool `json:"tls_skip_verify"`
|
||||
Namespace string `json:"namespace"`
|
||||
Release string `json:"release"`
|
||||
Chart string `json:"chart"`
|
||||
Version string `json:"version"`
|
||||
Values string `json:"values"`
|
||||
ValuesFiles string `json:"values_files"`
|
||||
Debug bool `json:"debug"`
|
||||
DryRun bool `json:"dry_run"`
|
||||
Secrets []string `json:"secrets"`
|
||||
Prefix string `json:"prefix"`
|
||||
TillerNs string `json:"tiller_ns"`
|
||||
Wait bool `json:"wait"`
|
||||
RecreatePods bool `json:"recreate_pods"`
|
||||
Upgrade bool `json:"upgrade"`
|
||||
CanaryImage bool `json:"canary_image"`
|
||||
ClientOnly bool `json:"client_only"`
|
||||
ReuseValues bool `json:"reuse_values"`
|
||||
Timeout string `json:"timeout"`
|
||||
Force bool `json:"force"`
|
||||
HelmRepos []string `json:"helm_repos"`
|
||||
Purge bool `json:"purge"`
|
||||
UpdateDependencies bool `json:"update_dependencies"`
|
||||
}
|
||||
// Plugin default
|
||||
Plugin struct {
|
||||
@@ -217,7 +217,6 @@ func doDependencyUpdate(chart string) []string {
|
||||
return dependencyUpdate
|
||||
}
|
||||
|
||||
|
||||
// Exec default method
|
||||
func (p *Plugin) Exec() error {
|
||||
if p.Config.Debug {
|
||||
@@ -233,9 +232,6 @@ func (p *Plugin) Exec() error {
|
||||
if p.Config.Token == "" {
|
||||
return fmt.Errorf("Error: Token is needed to deploy.")
|
||||
}
|
||||
if p.Config.SkipTLSVerify == false && p.Config.Certificate == "" {
|
||||
return fmt.Errorf("Error: Certificate is needed to deploy when SKIP_TLS_VERIFY is false.")
|
||||
}
|
||||
initialiseKubeconfig(&p.Config, KUBECONFIG, p.Config.KubeConfig)
|
||||
}
|
||||
|
||||
@@ -1,4 +1,4 @@
|
||||
package main
|
||||
package plugin
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
@@ -23,7 +23,7 @@ func TestInitialiseKubeconfig(t *testing.T) {
|
||||
}
|
||||
|
||||
configfile := "config3.test"
|
||||
initialiseKubeconfig(&plugin.Config, "kubeconfig", configfile)
|
||||
initialiseKubeconfig(&plugin.Config, "../kubeconfig", configfile)
|
||||
data, err := ioutil.ReadFile(configfile)
|
||||
if err != nil {
|
||||
t.Errorf("Error reading file %v", err)
|
||||
-1
@@ -1 +0,0 @@
|
||||
logrus
|
||||
-12
@@ -1,12 +0,0 @@
|
||||
language: go
|
||||
go:
|
||||
- 1.6.x
|
||||
- 1.7.x
|
||||
- 1.8.x
|
||||
- tip
|
||||
env:
|
||||
- GOMAXPROCS=4 GORACE=halt_on_error=1
|
||||
install:
|
||||
- go get github.com/stretchr/testify/assert
|
||||
script:
|
||||
- go test -race -v .
|
||||
-109
@@ -1,109 +0,0 @@
|
||||
# 1.0.2
|
||||
|
||||
* bug: quote non-string values in text formatter (#583)
|
||||
* Make (*Logger) SetLevel a public method
|
||||
|
||||
# 1.0.1
|
||||
|
||||
* bug: fix escaping in text formatter (#575)
|
||||
|
||||
# 1.0.0
|
||||
|
||||
* Officially changed name to lower-case
|
||||
* bug: colors on Windows 10 (#541)
|
||||
* bug: fix race in accessing level (#512)
|
||||
|
||||
# 0.11.5
|
||||
|
||||
* feature: add writer and writerlevel to entry (#372)
|
||||
|
||||
# 0.11.4
|
||||
|
||||
* bug: fix undefined variable on solaris (#493)
|
||||
|
||||
# 0.11.3
|
||||
|
||||
* formatter: configure quoting of empty values (#484)
|
||||
* formatter: configure quoting character (default is `"`) (#484)
|
||||
* bug: fix not importing io correctly in non-linux environments (#481)
|
||||
|
||||
# 0.11.2
|
||||
|
||||
* bug: fix windows terminal detection (#476)
|
||||
|
||||
# 0.11.1
|
||||
|
||||
* bug: fix tty detection with custom out (#471)
|
||||
|
||||
# 0.11.0
|
||||
|
||||
* performance: Use bufferpool to allocate (#370)
|
||||
* terminal: terminal detection for app-engine (#343)
|
||||
* feature: exit handler (#375)
|
||||
|
||||
# 0.10.0
|
||||
|
||||
* feature: Add a test hook (#180)
|
||||
* feature: `ParseLevel` is now case-insensitive (#326)
|
||||
* feature: `FieldLogger` interface that generalizes `Logger` and `Entry` (#308)
|
||||
* performance: avoid re-allocations on `WithFields` (#335)
|
||||
|
||||
# 0.9.0
|
||||
|
||||
* logrus/text_formatter: don't emit empty msg
|
||||
* logrus/hooks/airbrake: move out of main repository
|
||||
* logrus/hooks/sentry: move out of main repository
|
||||
* logrus/hooks/papertrail: move out of main repository
|
||||
* logrus/hooks/bugsnag: move out of main repository
|
||||
* logrus/core: run tests with `-race`
|
||||
* logrus/core: detect TTY based on `stderr`
|
||||
* logrus/core: support `WithError` on logger
|
||||
* logrus/core: Solaris support
|
||||
|
||||
# 0.8.7
|
||||
|
||||
* logrus/core: fix possible race (#216)
|
||||
* logrus/doc: small typo fixes and doc improvements
|
||||
|
||||
|
||||
# 0.8.6
|
||||
|
||||
* hooks/raven: allow passing an initialized client
|
||||
|
||||
# 0.8.5
|
||||
|
||||
* logrus/core: revert #208
|
||||
|
||||
# 0.8.4
|
||||
|
||||
* formatter/text: fix data race (#218)
|
||||
|
||||
# 0.8.3
|
||||
|
||||
* logrus/core: fix entry log level (#208)
|
||||
* logrus/core: improve performance of text formatter by 40%
|
||||
* logrus/core: expose `LevelHooks` type
|
||||
* logrus/core: add support for DragonflyBSD and NetBSD
|
||||
* formatter/text: print structs more verbosely
|
||||
|
||||
# 0.8.2
|
||||
|
||||
* logrus: fix more Fatal family functions
|
||||
|
||||
# 0.8.1
|
||||
|
||||
* logrus: fix not exiting on `Fatalf` and `Fatalln`
|
||||
|
||||
# 0.8.0
|
||||
|
||||
* logrus: defaults to stderr instead of stdout
|
||||
* hooks/sentry: add special field for `*http.Request`
|
||||
* formatter/text: ignore Windows for colors
|
||||
|
||||
# 0.7.3
|
||||
|
||||
* formatter/\*: allow configuration of timestamp layout
|
||||
|
||||
# 0.7.2
|
||||
|
||||
* formatter/text: Add configuration option for time format (#158)
|
||||
-21
@@ -1,21 +0,0 @@
|
||||
The MIT License (MIT)
|
||||
|
||||
Copyright (c) 2014 Simon Eskildsen
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in
|
||||
all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
THE SOFTWARE.
|
||||
-504
@@ -1,504 +0,0 @@
|
||||
# Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/> [](https://travis-ci.org/sirupsen/logrus) [](https://godoc.org/github.com/sirupsen/logrus)
|
||||
|
||||
Logrus is a structured logger for Go (golang), completely API compatible with
|
||||
the standard library logger. [Godoc][godoc].
|
||||
|
||||
**Seeing weird case-sensitive problems?** It's in the past been possible to
|
||||
import Logrus as both upper- and lower-case. Due to the Go package environment,
|
||||
this caused issues in the community and we needed a standard. Some environments
|
||||
experienced problems with the upper-case variant, so the lower-case was decided.
|
||||
Everything using `logrus` will need to use the lower-case:
|
||||
`github.com/sirupsen/logrus`. Any package that isn't, should be changed.
|
||||
|
||||
To fix Glide, see [these
|
||||
comments](https://github.com/sirupsen/logrus/issues/553#issuecomment-306591437).
|
||||
For an in-depth explanation of the casing issue, see [this
|
||||
comment](https://github.com/sirupsen/logrus/issues/570#issuecomment-313933276).
|
||||
|
||||
**Are you interested in assisting in maintaining Logrus?** Currently I have a
|
||||
lot of obligations, and I am unable to provide Logrus with the maintainership it
|
||||
needs. If you'd like to help, please reach out to me at `simon at author's
|
||||
username dot com`.
|
||||
|
||||
Nicely color-coded in development (when a TTY is attached, otherwise just
|
||||
plain text):
|
||||
|
||||

|
||||
|
||||
With `log.SetFormatter(&log.JSONFormatter{})`, for easy parsing by logstash
|
||||
or Splunk:
|
||||
|
||||
```json
|
||||
{"animal":"walrus","level":"info","msg":"A group of walrus emerges from the
|
||||
ocean","size":10,"time":"2014-03-10 19:57:38.562264131 -0400 EDT"}
|
||||
|
||||
{"level":"warning","msg":"The group's number increased tremendously!",
|
||||
"number":122,"omg":true,"time":"2014-03-10 19:57:38.562471297 -0400 EDT"}
|
||||
|
||||
{"animal":"walrus","level":"info","msg":"A giant walrus appears!",
|
||||
"size":10,"time":"2014-03-10 19:57:38.562500591 -0400 EDT"}
|
||||
|
||||
{"animal":"walrus","level":"info","msg":"Tremendously sized cow enters the ocean.",
|
||||
"size":9,"time":"2014-03-10 19:57:38.562527896 -0400 EDT"}
|
||||
|
||||
{"level":"fatal","msg":"The ice breaks!","number":100,"omg":true,
|
||||
"time":"2014-03-10 19:57:38.562543128 -0400 EDT"}
|
||||
```
|
||||
|
||||
With the default `log.SetFormatter(&log.TextFormatter{})` when a TTY is not
|
||||
attached, the output is compatible with the
|
||||
[logfmt](http://godoc.org/github.com/kr/logfmt) format:
|
||||
|
||||
```text
|
||||
time="2015-03-26T01:27:38-04:00" level=debug msg="Started observing beach" animal=walrus number=8
|
||||
time="2015-03-26T01:27:38-04:00" level=info msg="A group of walrus emerges from the ocean" animal=walrus size=10
|
||||
time="2015-03-26T01:27:38-04:00" level=warning msg="The group's number increased tremendously!" number=122 omg=true
|
||||
time="2015-03-26T01:27:38-04:00" level=debug msg="Temperature changes" temperature=-4
|
||||
time="2015-03-26T01:27:38-04:00" level=panic msg="It's over 9000!" animal=orca size=9009
|
||||
time="2015-03-26T01:27:38-04:00" level=fatal msg="The ice breaks!" err=&{0x2082280c0 map[animal:orca size:9009] 2015-03-26 01:27:38.441574009 -0400 EDT panic It's over 9000!} number=100 omg=true
|
||||
exit status 1
|
||||
```
|
||||
|
||||
#### Case-sensitivity
|
||||
|
||||
The organization's name was changed to lower-case--and this will not be changed
|
||||
back. If you are getting import conflicts due to case sensitivity, please use
|
||||
the lower-case import: `github.com/sirupsen/logrus`.
|
||||
|
||||
#### Example
|
||||
|
||||
The simplest way to use Logrus is simply the package-level exported logger:
|
||||
|
||||
```go
|
||||
package main
|
||||
|
||||
import (
|
||||
log "github.com/sirupsen/logrus"
|
||||
)
|
||||
|
||||
func main() {
|
||||
log.WithFields(log.Fields{
|
||||
"animal": "walrus",
|
||||
}).Info("A walrus appears")
|
||||
}
|
||||
```
|
||||
|
||||
Note that it's completely api-compatible with the stdlib logger, so you can
|
||||
replace your `log` imports everywhere with `log "github.com/sirupsen/logrus"`
|
||||
and you'll now have the flexibility of Logrus. You can customize it all you
|
||||
want:
|
||||
|
||||
```go
|
||||
package main
|
||||
|
||||
import (
|
||||
"os"
|
||||
log "github.com/sirupsen/logrus"
|
||||
)
|
||||
|
||||
func init() {
|
||||
// Log as JSON instead of the default ASCII formatter.
|
||||
log.SetFormatter(&log.JSONFormatter{})
|
||||
|
||||
// Output to stdout instead of the default stderr
|
||||
// Can be any io.Writer, see below for File example
|
||||
log.SetOutput(os.Stdout)
|
||||
|
||||
// Only log the warning severity or above.
|
||||
log.SetLevel(log.WarnLevel)
|
||||
}
|
||||
|
||||
func main() {
|
||||
log.WithFields(log.Fields{
|
||||
"animal": "walrus",
|
||||
"size": 10,
|
||||
}).Info("A group of walrus emerges from the ocean")
|
||||
|
||||
log.WithFields(log.Fields{
|
||||
"omg": true,
|
||||
"number": 122,
|
||||
}).Warn("The group's number increased tremendously!")
|
||||
|
||||
log.WithFields(log.Fields{
|
||||
"omg": true,
|
||||
"number": 100,
|
||||
}).Fatal("The ice breaks!")
|
||||
|
||||
// A common pattern is to re-use fields between logging statements by re-using
|
||||
// the logrus.Entry returned from WithFields()
|
||||
contextLogger := log.WithFields(log.Fields{
|
||||
"common": "this is a common field",
|
||||
"other": "I also should be logged always",
|
||||
})
|
||||
|
||||
contextLogger.Info("I'll be logged with common and other field")
|
||||
contextLogger.Info("Me too")
|
||||
}
|
||||
```
|
||||
|
||||
For more advanced usage such as logging to multiple locations from the same
|
||||
application, you can also create an instance of the `logrus` Logger:
|
||||
|
||||
```go
|
||||
package main
|
||||
|
||||
import (
|
||||
"os"
|
||||
"github.com/sirupsen/logrus"
|
||||
)
|
||||
|
||||
// Create a new instance of the logger. You can have any number of instances.
|
||||
var log = logrus.New()
|
||||
|
||||
func main() {
|
||||
// The API for setting attributes is a little different than the package level
|
||||
// exported logger. See Godoc.
|
||||
log.Out = os.Stdout
|
||||
|
||||
// You could set this to any `io.Writer` such as a file
|
||||
// file, err := os.OpenFile("logrus.log", os.O_CREATE|os.O_WRONLY, 0666)
|
||||
// if err == nil {
|
||||
// log.Out = file
|
||||
// } else {
|
||||
// log.Info("Failed to log to file, using default stderr")
|
||||
// }
|
||||
|
||||
log.WithFields(logrus.Fields{
|
||||
"animal": "walrus",
|
||||
"size": 10,
|
||||
}).Info("A group of walrus emerges from the ocean")
|
||||
}
|
||||
```
|
||||
|
||||
#### Fields
|
||||
|
||||
Logrus encourages careful, structured logging through logging fields instead of
|
||||
long, unparseable error messages. For example, instead of: `log.Fatalf("Failed
|
||||
to send event %s to topic %s with key %d")`, you should log the much more
|
||||
discoverable:
|
||||
|
||||
```go
|
||||
log.WithFields(log.Fields{
|
||||
"event": event,
|
||||
"topic": topic,
|
||||
"key": key,
|
||||
}).Fatal("Failed to send event")
|
||||
```
|
||||
|
||||
We've found this API forces you to think about logging in a way that produces
|
||||
much more useful logging messages. We've been in countless situations where just
|
||||
a single added field to a log statement that was already there would've saved us
|
||||
hours. The `WithFields` call is optional.
|
||||
|
||||
In general, with Logrus using any of the `printf`-family functions should be
|
||||
seen as a hint you should add a field, however, you can still use the
|
||||
`printf`-family functions with Logrus.
|
||||
|
||||
#### Default Fields
|
||||
|
||||
Often it's helpful to have fields _always_ attached to log statements in an
|
||||
application or parts of one. For example, you may want to always log the
|
||||
`request_id` and `user_ip` in the context of a request. Instead of writing
|
||||
`log.WithFields(log.Fields{"request_id": request_id, "user_ip": user_ip})` on
|
||||
every line, you can create a `logrus.Entry` to pass around instead:
|
||||
|
||||
```go
|
||||
requestLogger := log.WithFields(log.Fields{"request_id": request_id, "user_ip": user_ip})
|
||||
requestLogger.Info("something happened on that request") # will log request_id and user_ip
|
||||
requestLogger.Warn("something not great happened")
|
||||
```
|
||||
|
||||
#### Hooks
|
||||
|
||||
You can add hooks for logging levels. For example to send errors to an exception
|
||||
tracking service on `Error`, `Fatal` and `Panic`, info to StatsD or log to
|
||||
multiple places simultaneously, e.g. syslog.
|
||||
|
||||
Logrus comes with [built-in hooks](hooks/). Add those, or your custom hook, in
|
||||
`init`:
|
||||
|
||||
```go
|
||||
import (
|
||||
log "github.com/sirupsen/logrus"
|
||||
"gopkg.in/gemnasium/logrus-airbrake-hook.v2" // the package is named "aibrake"
|
||||
logrus_syslog "github.com/sirupsen/logrus/hooks/syslog"
|
||||
"log/syslog"
|
||||
)
|
||||
|
||||
func init() {
|
||||
|
||||
// Use the Airbrake hook to report errors that have Error severity or above to
|
||||
// an exception tracker. You can create custom hooks, see the Hooks section.
|
||||
log.AddHook(airbrake.NewHook(123, "xyz", "production"))
|
||||
|
||||
hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
|
||||
if err != nil {
|
||||
log.Error("Unable to connect to local syslog daemon")
|
||||
} else {
|
||||
log.AddHook(hook)
|
||||
}
|
||||
}
|
||||
```
|
||||
Note: Syslog hook also support connecting to local syslog (Ex. "/dev/log" or "/var/run/syslog" or "/var/run/log"). For the detail, please check the [syslog hook README](hooks/syslog/README.md).
|
||||
|
||||
| Hook | Description |
|
||||
| ----- | ----------- |
|
||||
| [Airbrake "legacy"](https://github.com/gemnasium/logrus-airbrake-legacy-hook) | Send errors to an exception tracking service compatible with the Airbrake API V2. Uses [`airbrake-go`](https://github.com/tobi/airbrake-go) behind the scenes. |
|
||||
| [Airbrake](https://github.com/gemnasium/logrus-airbrake-hook) | Send errors to the Airbrake API V3. Uses the official [`gobrake`](https://github.com/airbrake/gobrake) behind the scenes. |
|
||||
| [Amazon Kinesis](https://github.com/evalphobia/logrus_kinesis) | Hook for logging to [Amazon Kinesis](https://aws.amazon.com/kinesis/) |
|
||||
| [Amqp-Hook](https://github.com/vladoatanasov/logrus_amqp) | Hook for logging to Amqp broker (Like RabbitMQ) |
|
||||
| [Bugsnag](https://github.com/Shopify/logrus-bugsnag/blob/master/bugsnag.go) | Send errors to the Bugsnag exception tracking service. |
|
||||
| [DeferPanic](https://github.com/deferpanic/dp-logrus) | Hook for logging to DeferPanic |
|
||||
| [Discordrus](https://github.com/kz/discordrus) | Hook for logging to [Discord](https://discordapp.com/) |
|
||||
| [ElasticSearch](https://github.com/sohlich/elogrus) | Hook for logging to ElasticSearch|
|
||||
| [Firehose](https://github.com/beaubrewer/logrus_firehose) | Hook for logging to [Amazon Firehose](https://aws.amazon.com/kinesis/firehose/)
|
||||
| [Fluentd](https://github.com/evalphobia/logrus_fluent) | Hook for logging to fluentd |
|
||||
| [Go-Slack](https://github.com/multiplay/go-slack) | Hook for logging to [Slack](https://slack.com) |
|
||||
| [Graylog](https://github.com/gemnasium/logrus-graylog-hook) | Hook for logging to [Graylog](http://graylog2.org/) |
|
||||
| [Hiprus](https://github.com/nubo/hiprus) | Send errors to a channel in hipchat. |
|
||||
| [Honeybadger](https://github.com/agonzalezro/logrus_honeybadger) | Hook for sending exceptions to Honeybadger |
|
||||
| [InfluxDB](https://github.com/Abramovic/logrus_influxdb) | Hook for logging to influxdb |
|
||||
| [Influxus](http://github.com/vlad-doru/influxus) | Hook for concurrently logging to [InfluxDB](http://influxdata.com/) |
|
||||
| [Journalhook](https://github.com/wercker/journalhook) | Hook for logging to `systemd-journald` |
|
||||
| [KafkaLogrus](https://github.com/goibibo/KafkaLogrus) | Hook for logging to kafka |
|
||||
| [LFShook](https://github.com/rifflock/lfshook) | Hook for logging to the local filesystem |
|
||||
| [Logentries](https://github.com/jcftang/logentriesrus) | Hook for logging to [Logentries](https://logentries.com/) |
|
||||
| [Logentrus](https://github.com/puddingfactory/logentrus) | Hook for logging to [Logentries](https://logentries.com/) |
|
||||
| [Logmatic.io](https://github.com/logmatic/logmatic-go) | Hook for logging to [Logmatic.io](http://logmatic.io/) |
|
||||
| [Logrusly](https://github.com/sebest/logrusly) | Send logs to [Loggly](https://www.loggly.com/) |
|
||||
| [Logstash](https://github.com/bshuster-repo/logrus-logstash-hook) | Hook for logging to [Logstash](https://www.elastic.co/products/logstash) |
|
||||
| [Mail](https://github.com/zbindenren/logrus_mail) | Hook for sending exceptions via mail |
|
||||
| [Mattermost](https://github.com/shuLhan/mattermost-integration/tree/master/hooks/logrus) | Hook for logging to [Mattermost](https://mattermost.com/) |
|
||||
| [Mongodb](https://github.com/weekface/mgorus) | Hook for logging to mongodb |
|
||||
| [NATS-Hook](https://github.com/rybit/nats_logrus_hook) | Hook for logging to [NATS](https://nats.io) |
|
||||
| [Octokit](https://github.com/dorajistyle/logrus-octokit-hook) | Hook for logging to github via octokit |
|
||||
| [Papertrail](https://github.com/polds/logrus-papertrail-hook) | Send errors to the [Papertrail](https://papertrailapp.com) hosted logging service via UDP. |
|
||||
| [PostgreSQL](https://github.com/gemnasium/logrus-postgresql-hook) | Send logs to [PostgreSQL](http://postgresql.org) |
|
||||
| [Pushover](https://github.com/toorop/logrus_pushover) | Send error via [Pushover](https://pushover.net) |
|
||||
| [Raygun](https://github.com/squirkle/logrus-raygun-hook) | Hook for logging to [Raygun.io](http://raygun.io/) |
|
||||
| [Redis-Hook](https://github.com/rogierlommers/logrus-redis-hook) | Hook for logging to a ELK stack (through Redis) |
|
||||
| [Rollrus](https://github.com/heroku/rollrus) | Hook for sending errors to rollbar |
|
||||
| [Scribe](https://github.com/sagar8192/logrus-scribe-hook) | Hook for logging to [Scribe](https://github.com/facebookarchive/scribe)|
|
||||
| [Sentry](https://github.com/evalphobia/logrus_sentry) | Send errors to the Sentry error logging and aggregation service. |
|
||||
| [Slackrus](https://github.com/johntdyer/slackrus) | Hook for Slack chat. |
|
||||
| [Stackdriver](https://github.com/knq/sdhook) | Hook for logging to [Google Stackdriver](https://cloud.google.com/logging/) |
|
||||
| [Sumorus](https://github.com/doublefree/sumorus) | Hook for logging to [SumoLogic](https://www.sumologic.com/)|
|
||||
| [Syslog](https://github.com/sirupsen/logrus/blob/master/hooks/syslog/syslog.go) | Send errors to remote syslog server. Uses standard library `log/syslog` behind the scenes. |
|
||||
| [Syslog TLS](https://github.com/shinji62/logrus-syslog-ng) | Send errors to remote syslog server with TLS support. |
|
||||
| [TraceView](https://github.com/evalphobia/logrus_appneta) | Hook for logging to [AppNeta TraceView](https://www.appneta.com/products/traceview/) |
|
||||
| [Typetalk](https://github.com/dragon3/logrus-typetalk-hook) | Hook for logging to [Typetalk](https://www.typetalk.in/) |
|
||||
| [logz.io](https://github.com/ripcurld00d/logrus-logzio-hook) | Hook for logging to [logz.io](https://logz.io), a Log as a Service using Logstash |
|
||||
| [SQS-Hook](https://github.com/tsarpaul/logrus_sqs) | Hook for logging to [Amazon Simple Queue Service (SQS)](https://aws.amazon.com/sqs/) |
|
||||
|
||||
#### Level logging
|
||||
|
||||
Logrus has six logging levels: Debug, Info, Warning, Error, Fatal and Panic.
|
||||
|
||||
```go
|
||||
log.Debug("Useful debugging information.")
|
||||
log.Info("Something noteworthy happened!")
|
||||
log.Warn("You should probably take a look at this.")
|
||||
log.Error("Something failed but I'm not quitting.")
|
||||
// Calls os.Exit(1) after logging
|
||||
log.Fatal("Bye.")
|
||||
// Calls panic() after logging
|
||||
log.Panic("I'm bailing.")
|
||||
```
|
||||
|
||||
You can set the logging level on a `Logger`, then it will only log entries with
|
||||
that severity or anything above it:
|
||||
|
||||
```go
|
||||
// Will log anything that is info or above (warn, error, fatal, panic). Default.
|
||||
log.SetLevel(log.InfoLevel)
|
||||
```
|
||||
|
||||
It may be useful to set `log.Level = logrus.DebugLevel` in a debug or verbose
|
||||
environment if your application has that.
|
||||
|
||||
#### Entries
|
||||
|
||||
Besides the fields added with `WithField` or `WithFields` some fields are
|
||||
automatically added to all logging events:
|
||||
|
||||
1. `time`. The timestamp when the entry was created.
|
||||
2. `msg`. The logging message passed to `{Info,Warn,Error,Fatal,Panic}` after
|
||||
the `AddFields` call. E.g. `Failed to send event.`
|
||||
3. `level`. The logging level. E.g. `info`.
|
||||
|
||||
#### Environments
|
||||
|
||||
Logrus has no notion of environment.
|
||||
|
||||
If you wish for hooks and formatters to only be used in specific environments,
|
||||
you should handle that yourself. For example, if your application has a global
|
||||
variable `Environment`, which is a string representation of the environment you
|
||||
could do:
|
||||
|
||||
```go
|
||||
import (
|
||||
log "github.com/sirupsen/logrus"
|
||||
)
|
||||
|
||||
init() {
|
||||
// do something here to set environment depending on an environment variable
|
||||
// or command-line flag
|
||||
if Environment == "production" {
|
||||
log.SetFormatter(&log.JSONFormatter{})
|
||||
} else {
|
||||
// The TextFormatter is default, you don't actually have to do this.
|
||||
log.SetFormatter(&log.TextFormatter{})
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
This configuration is how `logrus` was intended to be used, but JSON in
|
||||
production is mostly only useful if you do log aggregation with tools like
|
||||
Splunk or Logstash.
|
||||
|
||||
#### Formatters
|
||||
|
||||
The built-in logging formatters are:
|
||||
|
||||
* `logrus.TextFormatter`. Logs the event in colors if stdout is a tty, otherwise
|
||||
without colors.
|
||||
* *Note:* to force colored output when there is no TTY, set the `ForceColors`
|
||||
field to `true`. To force no colored output even if there is a TTY set the
|
||||
`DisableColors` field to `true`. For Windows, see
|
||||
[github.com/mattn/go-colorable](https://github.com/mattn/go-colorable).
|
||||
* All options are listed in the [generated docs](https://godoc.org/github.com/sirupsen/logrus#TextFormatter).
|
||||
* `logrus.JSONFormatter`. Logs fields as JSON.
|
||||
* All options are listed in the [generated docs](https://godoc.org/github.com/sirupsen/logrus#JSONFormatter).
|
||||
|
||||
Third party logging formatters:
|
||||
|
||||
* [`logstash`](https://github.com/bshuster-repo/logrus-logstash-hook). Logs fields as [Logstash](http://logstash.net) Events.
|
||||
* [`prefixed`](https://github.com/x-cray/logrus-prefixed-formatter). Displays log entry source along with alternative layout.
|
||||
* [`zalgo`](https://github.com/aybabtme/logzalgo). Invoking the P͉̫o̳̼̊w̖͈̰͎e̬͔̭͂r͚̼̹̲ ̫͓͉̳͈ō̠͕͖̚f̝͍̠ ͕̲̞͖͑Z̖̫̤̫ͪa͉̬͈̗l͖͎g̳̥o̰̥̅!̣͔̲̻͊̄ ̙̘̦̹̦.
|
||||
|
||||
You can define your formatter by implementing the `Formatter` interface,
|
||||
requiring a `Format` method. `Format` takes an `*Entry`. `entry.Data` is a
|
||||
`Fields` type (`map[string]interface{}`) with all your fields as well as the
|
||||
default ones (see Entries section above):
|
||||
|
||||
```go
|
||||
type MyJSONFormatter struct {
|
||||
}
|
||||
|
||||
log.SetFormatter(new(MyJSONFormatter))
|
||||
|
||||
func (f *MyJSONFormatter) Format(entry *Entry) ([]byte, error) {
|
||||
// Note this doesn't include Time, Level and Message which are available on
|
||||
// the Entry. Consult `godoc` on information about those fields or read the
|
||||
// source of the official loggers.
|
||||
serialized, err := json.Marshal(entry.Data)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
|
||||
}
|
||||
return append(serialized, '\n'), nil
|
||||
}
|
||||
```
|
||||
|
||||
#### Logger as an `io.Writer`
|
||||
|
||||
Logrus can be transformed into an `io.Writer`. That writer is the end of an `io.Pipe` and it is your responsibility to close it.
|
||||
|
||||
```go
|
||||
w := logger.Writer()
|
||||
defer w.Close()
|
||||
|
||||
srv := http.Server{
|
||||
// create a stdlib log.Logger that writes to
|
||||
// logrus.Logger.
|
||||
ErrorLog: log.New(w, "", 0),
|
||||
}
|
||||
```
|
||||
|
||||
Each line written to that writer will be printed the usual way, using formatters
|
||||
and hooks. The level for those entries is `info`.
|
||||
|
||||
This means that we can override the standard library logger easily:
|
||||
|
||||
```go
|
||||
logger := logrus.New()
|
||||
logger.Formatter = &logrus.JSONFormatter{}
|
||||
|
||||
// Use logrus for standard log output
|
||||
// Note that `log` here references stdlib's log
|
||||
// Not logrus imported under the name `log`.
|
||||
log.SetOutput(logger.Writer())
|
||||
```
|
||||
|
||||
#### Rotation
|
||||
|
||||
Log rotation is not provided with Logrus. Log rotation should be done by an
|
||||
external program (like `logrotate(8)`) that can compress and delete old log
|
||||
entries. It should not be a feature of the application-level logger.
|
||||
|
||||
#### Tools
|
||||
|
||||
| Tool | Description |
|
||||
| ---- | ----------- |
|
||||
|[Logrus Mate](https://github.com/gogap/logrus_mate)|Logrus mate is a tool for Logrus to manage loggers, you can initial logger's level, hook and formatter by config file, the logger will generated with different config at different environment.|
|
||||
|[Logrus Viper Helper](https://github.com/heirko/go-contrib/tree/master/logrusHelper)|An Helper around Logrus to wrap with spf13/Viper to load configuration with fangs! And to simplify Logrus configuration use some behavior of [Logrus Mate](https://github.com/gogap/logrus_mate). [sample](https://github.com/heirko/iris-contrib/blob/master/middleware/logrus-logger/example) |
|
||||
|
||||
#### Testing
|
||||
|
||||
Logrus has a built in facility for asserting the presence of log messages. This is implemented through the `test` hook and provides:
|
||||
|
||||
* decorators for existing logger (`test.NewLocal` and `test.NewGlobal`) which basically just add the `test` hook
|
||||
* a test logger (`test.NewNullLogger`) that just records log messages (and does not output any):
|
||||
|
||||
```go
|
||||
import(
|
||||
"github.com/sirupsen/logrus"
|
||||
"github.com/sirupsen/logrus/hooks/test"
|
||||
"github.com/stretchr/testify/assert"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestSomething(t*testing.T){
|
||||
logger, hook := test.NewNullLogger()
|
||||
logger.Error("Helloerror")
|
||||
|
||||
assert.Equal(t, 1, len(hook.Entries))
|
||||
assert.Equal(t, logrus.ErrorLevel, hook.LastEntry().Level)
|
||||
assert.Equal(t, "Helloerror", hook.LastEntry().Message)
|
||||
|
||||
hook.Reset()
|
||||
assert.Nil(t, hook.LastEntry())
|
||||
}
|
||||
```
|
||||
|
||||
#### Fatal handlers
|
||||
|
||||
Logrus can register one or more functions that will be called when any `fatal`
|
||||
level message is logged. The registered handlers will be executed before
|
||||
logrus performs a `os.Exit(1)`. This behavior may be helpful if callers need
|
||||
to gracefully shutdown. Unlike a `panic("Something went wrong...")` call which can be intercepted with a deferred `recover` a call to `os.Exit(1)` can not be intercepted.
|
||||
|
||||
```
|
||||
...
|
||||
handler := func() {
|
||||
// gracefully shutdown something...
|
||||
}
|
||||
logrus.RegisterExitHandler(handler)
|
||||
...
|
||||
```
|
||||
|
||||
#### Thread safety
|
||||
|
||||
By default Logger is protected by mutex for concurrent writes, this mutex is invoked when calling hooks and writing logs.
|
||||
If you are sure such locking is not needed, you can call logger.SetNoLock() to disable the locking.
|
||||
|
||||
Situation when locking is not needed includes:
|
||||
|
||||
* You have no hooks registered, or hooks calling is already thread-safe.
|
||||
|
||||
* Writing to logger.Out is already thread-safe, for example:
|
||||
|
||||
1) logger.Out is protected by locks.
|
||||
|
||||
2) logger.Out is a os.File handler opened with `O_APPEND` flag, and every write is smaller than 4k. (This allow multi-thread/multi-process writing)
|
||||
|
||||
(Refer to http://www.notthewizard.com/2014/06/17/are-files-appends-really-atomic/)
|
||||
-64
@@ -1,64 +0,0 @@
|
||||
package logrus
|
||||
|
||||
// The following code was sourced and modified from the
|
||||
// https://github.com/tebeka/atexit package governed by the following license:
|
||||
//
|
||||
// Copyright (c) 2012 Miki Tebeka <miki.tebeka@gmail.com>.
|
||||
//
|
||||
// Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
// this software and associated documentation files (the "Software"), to deal in
|
||||
// the Software without restriction, including without limitation the rights to
|
||||
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
|
||||
// the Software, and to permit persons to whom the Software is furnished to do so,
|
||||
// subject to the following conditions:
|
||||
//
|
||||
// The above copyright notice and this permission notice shall be included in all
|
||||
// copies or substantial portions of the Software.
|
||||
//
|
||||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
||||
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
|
||||
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
||||
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
)
|
||||
|
||||
var handlers = []func(){}
|
||||
|
||||
func runHandler(handler func()) {
|
||||
defer func() {
|
||||
if err := recover(); err != nil {
|
||||
fmt.Fprintln(os.Stderr, "Error: Logrus exit handler error:", err)
|
||||
}
|
||||
}()
|
||||
|
||||
handler()
|
||||
}
|
||||
|
||||
func runHandlers() {
|
||||
for _, handler := range handlers {
|
||||
runHandler(handler)
|
||||
}
|
||||
}
|
||||
|
||||
// Exit runs all the Logrus atexit handlers and then terminates the program using os.Exit(code)
|
||||
func Exit(code int) {
|
||||
runHandlers()
|
||||
os.Exit(code)
|
||||
}
|
||||
|
||||
// RegisterExitHandler adds a Logrus Exit handler, call logrus.Exit to invoke
|
||||
// all handlers. The handlers will also be invoked when any Fatal log entry is
|
||||
// made.
|
||||
//
|
||||
// This method is useful when a caller wishes to use logrus to log a fatal
|
||||
// message but also needs to gracefully shutdown. An example usecase could be
|
||||
// closing database connections, or sending a alert that the application is
|
||||
// closing.
|
||||
func RegisterExitHandler(handler func()) {
|
||||
handlers = append(handlers, handler)
|
||||
}
|
||||
-74
@@ -1,74 +0,0 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"io/ioutil"
|
||||
"os/exec"
|
||||
"testing"
|
||||
"time"
|
||||
)
|
||||
|
||||
func TestRegister(t *testing.T) {
|
||||
current := len(handlers)
|
||||
RegisterExitHandler(func() {})
|
||||
if len(handlers) != current+1 {
|
||||
t.Fatalf("can't add handler")
|
||||
}
|
||||
}
|
||||
|
||||
func TestHandler(t *testing.T) {
|
||||
gofile := "/tmp/testprog.go"
|
||||
if err := ioutil.WriteFile(gofile, testprog, 0666); err != nil {
|
||||
t.Fatalf("can't create go file")
|
||||
}
|
||||
|
||||
outfile := "/tmp/testprog.out"
|
||||
arg := time.Now().UTC().String()
|
||||
err := exec.Command("go", "run", gofile, outfile, arg).Run()
|
||||
if err == nil {
|
||||
t.Fatalf("completed normally, should have failed")
|
||||
}
|
||||
|
||||
data, err := ioutil.ReadFile(outfile)
|
||||
if err != nil {
|
||||
t.Fatalf("can't read output file %s", outfile)
|
||||
}
|
||||
|
||||
if string(data) != arg {
|
||||
t.Fatalf("bad data")
|
||||
}
|
||||
}
|
||||
|
||||
var testprog = []byte(`
|
||||
// Test program for atexit, gets output file and data as arguments and writes
|
||||
// data to output file in atexit handler.
|
||||
package main
|
||||
|
||||
import (
|
||||
"github.com/sirupsen/logrus"
|
||||
"flag"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
)
|
||||
|
||||
var outfile = ""
|
||||
var data = ""
|
||||
|
||||
func handler() {
|
||||
ioutil.WriteFile(outfile, []byte(data), 0666)
|
||||
}
|
||||
|
||||
func badHandler() {
|
||||
n := 0
|
||||
fmt.Println(1/n)
|
||||
}
|
||||
|
||||
func main() {
|
||||
flag.Parse()
|
||||
outfile = flag.Arg(0)
|
||||
data = flag.Arg(1)
|
||||
|
||||
logrus.RegisterExitHandler(handler)
|
||||
logrus.RegisterExitHandler(badHandler)
|
||||
logrus.Fatal("Bye bye")
|
||||
}
|
||||
`)
|
||||
-26
@@ -1,26 +0,0 @@
|
||||
/*
|
||||
Package logrus is a structured logger for Go, completely API compatible with the standard library logger.
|
||||
|
||||
|
||||
The simplest way to use Logrus is simply the package-level exported logger:
|
||||
|
||||
package main
|
||||
|
||||
import (
|
||||
log "github.com/sirupsen/logrus"
|
||||
)
|
||||
|
||||
func main() {
|
||||
log.WithFields(log.Fields{
|
||||
"animal": "walrus",
|
||||
"number": 1,
|
||||
"size": 10,
|
||||
}).Info("A walrus appears")
|
||||
}
|
||||
|
||||
Output:
|
||||
time="2015-09-07T08:48:33Z" level=info msg="A walrus appears" animal=walrus number=1 size=10
|
||||
|
||||
For a full guide visit https://github.com/sirupsen/logrus
|
||||
*/
|
||||
package logrus
|
||||
-275
@@ -1,275 +0,0 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"os"
|
||||
"sync"
|
||||
"time"
|
||||
)
|
||||
|
||||
var bufferPool *sync.Pool
|
||||
|
||||
func init() {
|
||||
bufferPool = &sync.Pool{
|
||||
New: func() interface{} {
|
||||
return new(bytes.Buffer)
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
// Defines the key when adding errors using WithError.
|
||||
var ErrorKey = "error"
|
||||
|
||||
// An entry is the final or intermediate Logrus logging entry. It contains all
|
||||
// the fields passed with WithField{,s}. It's finally logged when Debug, Info,
|
||||
// Warn, Error, Fatal or Panic is called on it. These objects can be reused and
|
||||
// passed around as much as you wish to avoid field duplication.
|
||||
type Entry struct {
|
||||
Logger *Logger
|
||||
|
||||
// Contains all the fields set by the user.
|
||||
Data Fields
|
||||
|
||||
// Time at which the log entry was created
|
||||
Time time.Time
|
||||
|
||||
// Level the log entry was logged at: Debug, Info, Warn, Error, Fatal or Panic
|
||||
Level Level
|
||||
|
||||
// Message passed to Debug, Info, Warn, Error, Fatal or Panic
|
||||
Message string
|
||||
|
||||
// When formatter is called in entry.log(), an Buffer may be set to entry
|
||||
Buffer *bytes.Buffer
|
||||
}
|
||||
|
||||
func NewEntry(logger *Logger) *Entry {
|
||||
return &Entry{
|
||||
Logger: logger,
|
||||
// Default is three fields, give a little extra room
|
||||
Data: make(Fields, 5),
|
||||
}
|
||||
}
|
||||
|
||||
// Returns the string representation from the reader and ultimately the
|
||||
// formatter.
|
||||
func (entry *Entry) String() (string, error) {
|
||||
serialized, err := entry.Logger.Formatter.Format(entry)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
str := string(serialized)
|
||||
return str, nil
|
||||
}
|
||||
|
||||
// Add an error as single field (using the key defined in ErrorKey) to the Entry.
|
||||
func (entry *Entry) WithError(err error) *Entry {
|
||||
return entry.WithField(ErrorKey, err)
|
||||
}
|
||||
|
||||
// Add a single field to the Entry.
|
||||
func (entry *Entry) WithField(key string, value interface{}) *Entry {
|
||||
return entry.WithFields(Fields{key: value})
|
||||
}
|
||||
|
||||
// Add a map of fields to the Entry.
|
||||
func (entry *Entry) WithFields(fields Fields) *Entry {
|
||||
data := make(Fields, len(entry.Data)+len(fields))
|
||||
for k, v := range entry.Data {
|
||||
data[k] = v
|
||||
}
|
||||
for k, v := range fields {
|
||||
data[k] = v
|
||||
}
|
||||
return &Entry{Logger: entry.Logger, Data: data}
|
||||
}
|
||||
|
||||
// This function is not declared with a pointer value because otherwise
|
||||
// race conditions will occur when using multiple goroutines
|
||||
func (entry Entry) log(level Level, msg string) {
|
||||
var buffer *bytes.Buffer
|
||||
entry.Time = time.Now()
|
||||
entry.Level = level
|
||||
entry.Message = msg
|
||||
|
||||
if err := entry.Logger.Hooks.Fire(level, &entry); err != nil {
|
||||
entry.Logger.mu.Lock()
|
||||
fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err)
|
||||
entry.Logger.mu.Unlock()
|
||||
}
|
||||
buffer = bufferPool.Get().(*bytes.Buffer)
|
||||
buffer.Reset()
|
||||
defer bufferPool.Put(buffer)
|
||||
entry.Buffer = buffer
|
||||
serialized, err := entry.Logger.Formatter.Format(&entry)
|
||||
entry.Buffer = nil
|
||||
if err != nil {
|
||||
entry.Logger.mu.Lock()
|
||||
fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err)
|
||||
entry.Logger.mu.Unlock()
|
||||
} else {
|
||||
entry.Logger.mu.Lock()
|
||||
_, err = entry.Logger.Out.Write(serialized)
|
||||
if err != nil {
|
||||
fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
|
||||
}
|
||||
entry.Logger.mu.Unlock()
|
||||
}
|
||||
|
||||
// To avoid Entry#log() returning a value that only would make sense for
|
||||
// panic() to use in Entry#Panic(), we avoid the allocation by checking
|
||||
// directly here.
|
||||
if level <= PanicLevel {
|
||||
panic(&entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Debug(args ...interface{}) {
|
||||
if entry.Logger.level() >= DebugLevel {
|
||||
entry.log(DebugLevel, fmt.Sprint(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Print(args ...interface{}) {
|
||||
entry.Info(args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Info(args ...interface{}) {
|
||||
if entry.Logger.level() >= InfoLevel {
|
||||
entry.log(InfoLevel, fmt.Sprint(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Warn(args ...interface{}) {
|
||||
if entry.Logger.level() >= WarnLevel {
|
||||
entry.log(WarnLevel, fmt.Sprint(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Warning(args ...interface{}) {
|
||||
entry.Warn(args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Error(args ...interface{}) {
|
||||
if entry.Logger.level() >= ErrorLevel {
|
||||
entry.log(ErrorLevel, fmt.Sprint(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Fatal(args ...interface{}) {
|
||||
if entry.Logger.level() >= FatalLevel {
|
||||
entry.log(FatalLevel, fmt.Sprint(args...))
|
||||
}
|
||||
Exit(1)
|
||||
}
|
||||
|
||||
func (entry *Entry) Panic(args ...interface{}) {
|
||||
if entry.Logger.level() >= PanicLevel {
|
||||
entry.log(PanicLevel, fmt.Sprint(args...))
|
||||
}
|
||||
panic(fmt.Sprint(args...))
|
||||
}
|
||||
|
||||
// Entry Printf family functions
|
||||
|
||||
func (entry *Entry) Debugf(format string, args ...interface{}) {
|
||||
if entry.Logger.level() >= DebugLevel {
|
||||
entry.Debug(fmt.Sprintf(format, args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Infof(format string, args ...interface{}) {
|
||||
if entry.Logger.level() >= InfoLevel {
|
||||
entry.Info(fmt.Sprintf(format, args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Printf(format string, args ...interface{}) {
|
||||
entry.Infof(format, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Warnf(format string, args ...interface{}) {
|
||||
if entry.Logger.level() >= WarnLevel {
|
||||
entry.Warn(fmt.Sprintf(format, args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Warningf(format string, args ...interface{}) {
|
||||
entry.Warnf(format, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Errorf(format string, args ...interface{}) {
|
||||
if entry.Logger.level() >= ErrorLevel {
|
||||
entry.Error(fmt.Sprintf(format, args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Fatalf(format string, args ...interface{}) {
|
||||
if entry.Logger.level() >= FatalLevel {
|
||||
entry.Fatal(fmt.Sprintf(format, args...))
|
||||
}
|
||||
Exit(1)
|
||||
}
|
||||
|
||||
func (entry *Entry) Panicf(format string, args ...interface{}) {
|
||||
if entry.Logger.level() >= PanicLevel {
|
||||
entry.Panic(fmt.Sprintf(format, args...))
|
||||
}
|
||||
}
|
||||
|
||||
// Entry Println family functions
|
||||
|
||||
func (entry *Entry) Debugln(args ...interface{}) {
|
||||
if entry.Logger.level() >= DebugLevel {
|
||||
entry.Debug(entry.sprintlnn(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Infoln(args ...interface{}) {
|
||||
if entry.Logger.level() >= InfoLevel {
|
||||
entry.Info(entry.sprintlnn(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Println(args ...interface{}) {
|
||||
entry.Infoln(args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Warnln(args ...interface{}) {
|
||||
if entry.Logger.level() >= WarnLevel {
|
||||
entry.Warn(entry.sprintlnn(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Warningln(args ...interface{}) {
|
||||
entry.Warnln(args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Errorln(args ...interface{}) {
|
||||
if entry.Logger.level() >= ErrorLevel {
|
||||
entry.Error(entry.sprintlnn(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Fatalln(args ...interface{}) {
|
||||
if entry.Logger.level() >= FatalLevel {
|
||||
entry.Fatal(entry.sprintlnn(args...))
|
||||
}
|
||||
Exit(1)
|
||||
}
|
||||
|
||||
func (entry *Entry) Panicln(args ...interface{}) {
|
||||
if entry.Logger.level() >= PanicLevel {
|
||||
entry.Panic(entry.sprintlnn(args...))
|
||||
}
|
||||
}
|
||||
|
||||
// Sprintlnn => Sprint no newline. This is to get the behavior of how
|
||||
// fmt.Sprintln where spaces are always added between operands, regardless of
|
||||
// their type. Instead of vendoring the Sprintln implementation to spare a
|
||||
// string allocation, we do the simplest thing.
|
||||
func (entry *Entry) sprintlnn(args ...interface{}) string {
|
||||
msg := fmt.Sprintln(args...)
|
||||
return msg[:len(msg)-1]
|
||||
}
|
||||
-77
@@ -1,77 +0,0 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"testing"
|
||||
|
||||
"github.com/stretchr/testify/assert"
|
||||
)
|
||||
|
||||
func TestEntryWithError(t *testing.T) {
|
||||
|
||||
assert := assert.New(t)
|
||||
|
||||
defer func() {
|
||||
ErrorKey = "error"
|
||||
}()
|
||||
|
||||
err := fmt.Errorf("kaboom at layer %d", 4711)
|
||||
|
||||
assert.Equal(err, WithError(err).Data["error"])
|
||||
|
||||
logger := New()
|
||||
logger.Out = &bytes.Buffer{}
|
||||
entry := NewEntry(logger)
|
||||
|
||||
assert.Equal(err, entry.WithError(err).Data["error"])
|
||||
|
||||
ErrorKey = "err"
|
||||
|
||||
assert.Equal(err, entry.WithError(err).Data["err"])
|
||||
|
||||
}
|
||||
|
||||
func TestEntryPanicln(t *testing.T) {
|
||||
errBoom := fmt.Errorf("boom time")
|
||||
|
||||
defer func() {
|
||||
p := recover()
|
||||
assert.NotNil(t, p)
|
||||
|
||||
switch pVal := p.(type) {
|
||||
case *Entry:
|
||||
assert.Equal(t, "kaboom", pVal.Message)
|
||||
assert.Equal(t, errBoom, pVal.Data["err"])
|
||||
default:
|
||||
t.Fatalf("want type *Entry, got %T: %#v", pVal, pVal)
|
||||
}
|
||||
}()
|
||||
|
||||
logger := New()
|
||||
logger.Out = &bytes.Buffer{}
|
||||
entry := NewEntry(logger)
|
||||
entry.WithField("err", errBoom).Panicln("kaboom")
|
||||
}
|
||||
|
||||
func TestEntryPanicf(t *testing.T) {
|
||||
errBoom := fmt.Errorf("boom again")
|
||||
|
||||
defer func() {
|
||||
p := recover()
|
||||
assert.NotNil(t, p)
|
||||
|
||||
switch pVal := p.(type) {
|
||||
case *Entry:
|
||||
assert.Equal(t, "kaboom true", pVal.Message)
|
||||
assert.Equal(t, errBoom, pVal.Data["err"])
|
||||
default:
|
||||
t.Fatalf("want type *Entry, got %T: %#v", pVal, pVal)
|
||||
}
|
||||
}()
|
||||
|
||||
logger := New()
|
||||
logger.Out = &bytes.Buffer{}
|
||||
entry := NewEntry(logger)
|
||||
entry.WithField("err", errBoom).Panicf("kaboom %v", true)
|
||||
}
|
||||
-59
@@ -1,59 +0,0 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"github.com/sirupsen/logrus"
|
||||
// "os"
|
||||
)
|
||||
|
||||
var log = logrus.New()
|
||||
|
||||
func init() {
|
||||
log.Formatter = new(logrus.JSONFormatter)
|
||||
log.Formatter = new(logrus.TextFormatter) // default
|
||||
|
||||
// file, err := os.OpenFile("logrus.log", os.O_CREATE|os.O_WRONLY, 0666)
|
||||
// if err == nil {
|
||||
// log.Out = file
|
||||
// } else {
|
||||
// log.Info("Failed to log to file, using default stderr")
|
||||
// }
|
||||
|
||||
log.Level = logrus.DebugLevel
|
||||
}
|
||||
|
||||
func main() {
|
||||
defer func() {
|
||||
err := recover()
|
||||
if err != nil {
|
||||
log.WithFields(logrus.Fields{
|
||||
"omg": true,
|
||||
"err": err,
|
||||
"number": 100,
|
||||
}).Fatal("The ice breaks!")
|
||||
}
|
||||
}()
|
||||
|
||||
log.WithFields(logrus.Fields{
|
||||
"animal": "walrus",
|
||||
"number": 8,
|
||||
}).Debug("Started observing beach")
|
||||
|
||||
log.WithFields(logrus.Fields{
|
||||
"animal": "walrus",
|
||||
"size": 10,
|
||||
}).Info("A group of walrus emerges from the ocean")
|
||||
|
||||
log.WithFields(logrus.Fields{
|
||||
"omg": true,
|
||||
"number": 122,
|
||||
}).Warn("The group's number increased tremendously!")
|
||||
|
||||
log.WithFields(logrus.Fields{
|
||||
"temperature": -4,
|
||||
}).Debug("Temperature changes")
|
||||
|
||||
log.WithFields(logrus.Fields{
|
||||
"animal": "orca",
|
||||
"size": 9009,
|
||||
}).Panic("It's over 9000!")
|
||||
}
|
||||
-30
@@ -1,30 +0,0 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"github.com/sirupsen/logrus"
|
||||
"gopkg.in/gemnasium/logrus-airbrake-hook.v2"
|
||||
)
|
||||
|
||||
var log = logrus.New()
|
||||
|
||||
func init() {
|
||||
log.Formatter = new(logrus.TextFormatter) // default
|
||||
log.Hooks.Add(airbrake.NewHook(123, "xyz", "development"))
|
||||
}
|
||||
|
||||
func main() {
|
||||
log.WithFields(logrus.Fields{
|
||||
"animal": "walrus",
|
||||
"size": 10,
|
||||
}).Info("A group of walrus emerges from the ocean")
|
||||
|
||||
log.WithFields(logrus.Fields{
|
||||
"omg": true,
|
||||
"number": 122,
|
||||
}).Warn("The group's number increased tremendously!")
|
||||
|
||||
log.WithFields(logrus.Fields{
|
||||
"omg": true,
|
||||
"number": 100,
|
||||
}).Fatal("The ice breaks!")
|
||||
}
|
||||
-193
@@ -1,193 +0,0 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"io"
|
||||
)
|
||||
|
||||
var (
|
||||
// std is the name of the standard logger in stdlib `log`
|
||||
std = New()
|
||||
)
|
||||
|
||||
func StandardLogger() *Logger {
|
||||
return std
|
||||
}
|
||||
|
||||
// SetOutput sets the standard logger output.
|
||||
func SetOutput(out io.Writer) {
|
||||
std.mu.Lock()
|
||||
defer std.mu.Unlock()
|
||||
std.Out = out
|
||||
}
|
||||
|
||||
// SetFormatter sets the standard logger formatter.
|
||||
func SetFormatter(formatter Formatter) {
|
||||
std.mu.Lock()
|
||||
defer std.mu.Unlock()
|
||||
std.Formatter = formatter
|
||||
}
|
||||
|
||||
// SetLevel sets the standard logger level.
|
||||
func SetLevel(level Level) {
|
||||
std.mu.Lock()
|
||||
defer std.mu.Unlock()
|
||||
std.SetLevel(level)
|
||||
}
|
||||
|
||||
// GetLevel returns the standard logger level.
|
||||
func GetLevel() Level {
|
||||
std.mu.Lock()
|
||||
defer std.mu.Unlock()
|
||||
return std.level()
|
||||
}
|
||||
|
||||
// AddHook adds a hook to the standard logger hooks.
|
||||
func AddHook(hook Hook) {
|
||||
std.mu.Lock()
|
||||
defer std.mu.Unlock()
|
||||
std.Hooks.Add(hook)
|
||||
}
|
||||
|
||||
// WithError creates an entry from the standard logger and adds an error to it, using the value defined in ErrorKey as key.
|
||||
func WithError(err error) *Entry {
|
||||
return std.WithField(ErrorKey, err)
|
||||
}
|
||||
|
||||
// WithField creates an entry from the standard logger and adds a field to
|
||||
// it. If you want multiple fields, use `WithFields`.
|
||||
//
|
||||
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
|
||||
// or Panic on the Entry it returns.
|
||||
func WithField(key string, value interface{}) *Entry {
|
||||
return std.WithField(key, value)
|
||||
}
|
||||
|
||||
// WithFields creates an entry from the standard logger and adds multiple
|
||||
// fields to it. This is simply a helper for `WithField`, invoking it
|
||||
// once for each field.
|
||||
//
|
||||
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
|
||||
// or Panic on the Entry it returns.
|
||||
func WithFields(fields Fields) *Entry {
|
||||
return std.WithFields(fields)
|
||||
}
|
||||
|
||||
// Debug logs a message at level Debug on the standard logger.
|
||||
func Debug(args ...interface{}) {
|
||||
std.Debug(args...)
|
||||
}
|
||||
|
||||
// Print logs a message at level Info on the standard logger.
|
||||
func Print(args ...interface{}) {
|
||||
std.Print(args...)
|
||||
}
|
||||
|
||||
// Info logs a message at level Info on the standard logger.
|
||||
func Info(args ...interface{}) {
|
||||
std.Info(args...)
|
||||
}
|
||||
|
||||
// Warn logs a message at level Warn on the standard logger.
|
||||
func Warn(args ...interface{}) {
|
||||
std.Warn(args...)
|
||||
}
|
||||
|
||||
// Warning logs a message at level Warn on the standard logger.
|
||||
func Warning(args ...interface{}) {
|
||||
std.Warning(args...)
|
||||
}
|
||||
|
||||
// Error logs a message at level Error on the standard logger.
|
||||
func Error(args ...interface{}) {
|
||||
std.Error(args...)
|
||||
}
|
||||
|
||||
// Panic logs a message at level Panic on the standard logger.
|
||||
func Panic(args ...interface{}) {
|
||||
std.Panic(args...)
|
||||
}
|
||||
|
||||
// Fatal logs a message at level Fatal on the standard logger.
|
||||
func Fatal(args ...interface{}) {
|
||||
std.Fatal(args...)
|
||||
}
|
||||
|
||||
// Debugf logs a message at level Debug on the standard logger.
|
||||
func Debugf(format string, args ...interface{}) {
|
||||
std.Debugf(format, args...)
|
||||
}
|
||||
|
||||
// Printf logs a message at level Info on the standard logger.
|
||||
func Printf(format string, args ...interface{}) {
|
||||
std.Printf(format, args...)
|
||||
}
|
||||
|
||||
// Infof logs a message at level Info on the standard logger.
|
||||
func Infof(format string, args ...interface{}) {
|
||||
std.Infof(format, args...)
|
||||
}
|
||||
|
||||
// Warnf logs a message at level Warn on the standard logger.
|
||||
func Warnf(format string, args ...interface{}) {
|
||||
std.Warnf(format, args...)
|
||||
}
|
||||
|
||||
// Warningf logs a message at level Warn on the standard logger.
|
||||
func Warningf(format string, args ...interface{}) {
|
||||
std.Warningf(format, args...)
|
||||
}
|
||||
|
||||
// Errorf logs a message at level Error on the standard logger.
|
||||
func Errorf(format string, args ...interface{}) {
|
||||
std.Errorf(format, args...)
|
||||
}
|
||||
|
||||
// Panicf logs a message at level Panic on the standard logger.
|
||||
func Panicf(format string, args ...interface{}) {
|
||||
std.Panicf(format, args...)
|
||||
}
|
||||
|
||||
// Fatalf logs a message at level Fatal on the standard logger.
|
||||
func Fatalf(format string, args ...interface{}) {
|
||||
std.Fatalf(format, args...)
|
||||
}
|
||||
|
||||
// Debugln logs a message at level Debug on the standard logger.
|
||||
func Debugln(args ...interface{}) {
|
||||
std.Debugln(args...)
|
||||
}
|
||||
|
||||
// Println logs a message at level Info on the standard logger.
|
||||
func Println(args ...interface{}) {
|
||||
std.Println(args...)
|
||||
}
|
||||
|
||||
// Infoln logs a message at level Info on the standard logger.
|
||||
func Infoln(args ...interface{}) {
|
||||
std.Infoln(args...)
|
||||
}
|
||||
|
||||
// Warnln logs a message at level Warn on the standard logger.
|
||||
func Warnln(args ...interface{}) {
|
||||
std.Warnln(args...)
|
||||
}
|
||||
|
||||
// Warningln logs a message at level Warn on the standard logger.
|
||||
func Warningln(args ...interface{}) {
|
||||
std.Warningln(args...)
|
||||
}
|
||||
|
||||
// Errorln logs a message at level Error on the standard logger.
|
||||
func Errorln(args ...interface{}) {
|
||||
std.Errorln(args...)
|
||||
}
|
||||
|
||||
// Panicln logs a message at level Panic on the standard logger.
|
||||
func Panicln(args ...interface{}) {
|
||||
std.Panicln(args...)
|
||||
}
|
||||
|
||||
// Fatalln logs a message at level Fatal on the standard logger.
|
||||
func Fatalln(args ...interface{}) {
|
||||
std.Fatalln(args...)
|
||||
}
|
||||
-45
@@ -1,45 +0,0 @@
|
||||
package logrus
|
||||
|
||||
import "time"
|
||||
|
||||
const DefaultTimestampFormat = time.RFC3339
|
||||
|
||||
// The Formatter interface is used to implement a custom Formatter. It takes an
|
||||
// `Entry`. It exposes all the fields, including the default ones:
|
||||
//
|
||||
// * `entry.Data["msg"]`. The message passed from Info, Warn, Error ..
|
||||
// * `entry.Data["time"]`. The timestamp.
|
||||
// * `entry.Data["level"]. The level the entry was logged at.
|
||||
//
|
||||
// Any additional fields added with `WithField` or `WithFields` are also in
|
||||
// `entry.Data`. Format is expected to return an array of bytes which are then
|
||||
// logged to `logger.Out`.
|
||||
type Formatter interface {
|
||||
Format(*Entry) ([]byte, error)
|
||||
}
|
||||
|
||||
// This is to not silently overwrite `time`, `msg` and `level` fields when
|
||||
// dumping it. If this code wasn't there doing:
|
||||
//
|
||||
// logrus.WithField("level", 1).Info("hello")
|
||||
//
|
||||
// Would just silently drop the user provided level. Instead with this code
|
||||
// it'll logged as:
|
||||
//
|
||||
// {"level": "info", "fields.level": 1, "msg": "hello", "time": "..."}
|
||||
//
|
||||
// It's not exported because it's still using Data in an opinionated way. It's to
|
||||
// avoid code duplication between the two default formatters.
|
||||
func prefixFieldClashes(data Fields) {
|
||||
if t, ok := data["time"]; ok {
|
||||
data["fields.time"] = t
|
||||
}
|
||||
|
||||
if m, ok := data["msg"]; ok {
|
||||
data["fields.msg"] = m
|
||||
}
|
||||
|
||||
if l, ok := data["level"]; ok {
|
||||
data["fields.level"] = l
|
||||
}
|
||||
}
|
||||
-101
@@ -1,101 +0,0 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"testing"
|
||||
"time"
|
||||
)
|
||||
|
||||
// smallFields is a small size data set for benchmarking
|
||||
var smallFields = Fields{
|
||||
"foo": "bar",
|
||||
"baz": "qux",
|
||||
"one": "two",
|
||||
"three": "four",
|
||||
}
|
||||
|
||||
// largeFields is a large size data set for benchmarking
|
||||
var largeFields = Fields{
|
||||
"foo": "bar",
|
||||
"baz": "qux",
|
||||
"one": "two",
|
||||
"three": "four",
|
||||
"five": "six",
|
||||
"seven": "eight",
|
||||
"nine": "ten",
|
||||
"eleven": "twelve",
|
||||
"thirteen": "fourteen",
|
||||
"fifteen": "sixteen",
|
||||
"seventeen": "eighteen",
|
||||
"nineteen": "twenty",
|
||||
"a": "b",
|
||||
"c": "d",
|
||||
"e": "f",
|
||||
"g": "h",
|
||||
"i": "j",
|
||||
"k": "l",
|
||||
"m": "n",
|
||||
"o": "p",
|
||||
"q": "r",
|
||||
"s": "t",
|
||||
"u": "v",
|
||||
"w": "x",
|
||||
"y": "z",
|
||||
"this": "will",
|
||||
"make": "thirty",
|
||||
"entries": "yeah",
|
||||
}
|
||||
|
||||
var errorFields = Fields{
|
||||
"foo": fmt.Errorf("bar"),
|
||||
"baz": fmt.Errorf("qux"),
|
||||
}
|
||||
|
||||
func BenchmarkErrorTextFormatter(b *testing.B) {
|
||||
doBenchmark(b, &TextFormatter{DisableColors: true}, errorFields)
|
||||
}
|
||||
|
||||
func BenchmarkSmallTextFormatter(b *testing.B) {
|
||||
doBenchmark(b, &TextFormatter{DisableColors: true}, smallFields)
|
||||
}
|
||||
|
||||
func BenchmarkLargeTextFormatter(b *testing.B) {
|
||||
doBenchmark(b, &TextFormatter{DisableColors: true}, largeFields)
|
||||
}
|
||||
|
||||
func BenchmarkSmallColoredTextFormatter(b *testing.B) {
|
||||
doBenchmark(b, &TextFormatter{ForceColors: true}, smallFields)
|
||||
}
|
||||
|
||||
func BenchmarkLargeColoredTextFormatter(b *testing.B) {
|
||||
doBenchmark(b, &TextFormatter{ForceColors: true}, largeFields)
|
||||
}
|
||||
|
||||
func BenchmarkSmallJSONFormatter(b *testing.B) {
|
||||
doBenchmark(b, &JSONFormatter{}, smallFields)
|
||||
}
|
||||
|
||||
func BenchmarkLargeJSONFormatter(b *testing.B) {
|
||||
doBenchmark(b, &JSONFormatter{}, largeFields)
|
||||
}
|
||||
|
||||
func doBenchmark(b *testing.B, formatter Formatter, fields Fields) {
|
||||
logger := New()
|
||||
|
||||
entry := &Entry{
|
||||
Time: time.Time{},
|
||||
Level: InfoLevel,
|
||||
Message: "message",
|
||||
Data: fields,
|
||||
Logger: logger,
|
||||
}
|
||||
var d []byte
|
||||
var err error
|
||||
for i := 0; i < b.N; i++ {
|
||||
d, err = formatter.Format(entry)
|
||||
if err != nil {
|
||||
b.Fatal(err)
|
||||
}
|
||||
b.SetBytes(int64(len(d)))
|
||||
}
|
||||
}
|
||||
-122
@@ -1,122 +0,0 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"github.com/stretchr/testify/assert"
|
||||
)
|
||||
|
||||
type TestHook struct {
|
||||
Fired bool
|
||||
}
|
||||
|
||||
func (hook *TestHook) Fire(entry *Entry) error {
|
||||
hook.Fired = true
|
||||
return nil
|
||||
}
|
||||
|
||||
func (hook *TestHook) Levels() []Level {
|
||||
return []Level{
|
||||
DebugLevel,
|
||||
InfoLevel,
|
||||
WarnLevel,
|
||||
ErrorLevel,
|
||||
FatalLevel,
|
||||
PanicLevel,
|
||||
}
|
||||
}
|
||||
|
||||
func TestHookFires(t *testing.T) {
|
||||
hook := new(TestHook)
|
||||
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.Hooks.Add(hook)
|
||||
assert.Equal(t, hook.Fired, false)
|
||||
|
||||
log.Print("test")
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, hook.Fired, true)
|
||||
})
|
||||
}
|
||||
|
||||
type ModifyHook struct {
|
||||
}
|
||||
|
||||
func (hook *ModifyHook) Fire(entry *Entry) error {
|
||||
entry.Data["wow"] = "whale"
|
||||
return nil
|
||||
}
|
||||
|
||||
func (hook *ModifyHook) Levels() []Level {
|
||||
return []Level{
|
||||
DebugLevel,
|
||||
InfoLevel,
|
||||
WarnLevel,
|
||||
ErrorLevel,
|
||||
FatalLevel,
|
||||
PanicLevel,
|
||||
}
|
||||
}
|
||||
|
||||
func TestHookCanModifyEntry(t *testing.T) {
|
||||
hook := new(ModifyHook)
|
||||
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.Hooks.Add(hook)
|
||||
log.WithField("wow", "elephant").Print("test")
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, fields["wow"], "whale")
|
||||
})
|
||||
}
|
||||
|
||||
func TestCanFireMultipleHooks(t *testing.T) {
|
||||
hook1 := new(ModifyHook)
|
||||
hook2 := new(TestHook)
|
||||
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.Hooks.Add(hook1)
|
||||
log.Hooks.Add(hook2)
|
||||
|
||||
log.WithField("wow", "elephant").Print("test")
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, fields["wow"], "whale")
|
||||
assert.Equal(t, hook2.Fired, true)
|
||||
})
|
||||
}
|
||||
|
||||
type ErrorHook struct {
|
||||
Fired bool
|
||||
}
|
||||
|
||||
func (hook *ErrorHook) Fire(entry *Entry) error {
|
||||
hook.Fired = true
|
||||
return nil
|
||||
}
|
||||
|
||||
func (hook *ErrorHook) Levels() []Level {
|
||||
return []Level{
|
||||
ErrorLevel,
|
||||
}
|
||||
}
|
||||
|
||||
func TestErrorHookShouldntFireOnInfo(t *testing.T) {
|
||||
hook := new(ErrorHook)
|
||||
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.Hooks.Add(hook)
|
||||
log.Info("test")
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, hook.Fired, false)
|
||||
})
|
||||
}
|
||||
|
||||
func TestErrorHookShouldFireOnError(t *testing.T) {
|
||||
hook := new(ErrorHook)
|
||||
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.Hooks.Add(hook)
|
||||
log.Error("test")
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, hook.Fired, true)
|
||||
})
|
||||
}
|
||||
-34
@@ -1,34 +0,0 @@
|
||||
package logrus
|
||||
|
||||
// A hook to be fired when logging on the logging levels returned from
|
||||
// `Levels()` on your implementation of the interface. Note that this is not
|
||||
// fired in a goroutine or a channel with workers, you should handle such
|
||||
// functionality yourself if your call is non-blocking and you don't wish for
|
||||
// the logging calls for levels returned from `Levels()` to block.
|
||||
type Hook interface {
|
||||
Levels() []Level
|
||||
Fire(*Entry) error
|
||||
}
|
||||
|
||||
// Internal type for storing the hooks on a logger instance.
|
||||
type LevelHooks map[Level][]Hook
|
||||
|
||||
// Add a hook to an instance of logger. This is called with
|
||||
// `log.Hooks.Add(new(MyHook))` where `MyHook` implements the `Hook` interface.
|
||||
func (hooks LevelHooks) Add(hook Hook) {
|
||||
for _, level := range hook.Levels() {
|
||||
hooks[level] = append(hooks[level], hook)
|
||||
}
|
||||
}
|
||||
|
||||
// Fire all the hooks for the passed level. Used by `entry.log` to fire
|
||||
// appropriate hooks for a log entry.
|
||||
func (hooks LevelHooks) Fire(level Level, entry *Entry) error {
|
||||
for _, hook := range hooks[level] {
|
||||
if err := hook.Fire(entry); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
-39
@@ -1,39 +0,0 @@
|
||||
# Syslog Hooks for Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/>
|
||||
|
||||
## Usage
|
||||
|
||||
```go
|
||||
import (
|
||||
"log/syslog"
|
||||
"github.com/sirupsen/logrus"
|
||||
logrus_syslog "github.com/sirupsen/logrus/hooks/syslog"
|
||||
)
|
||||
|
||||
func main() {
|
||||
log := logrus.New()
|
||||
hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
|
||||
|
||||
if err == nil {
|
||||
log.Hooks.Add(hook)
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
If you want to connect to local syslog (Ex. "/dev/log" or "/var/run/syslog" or "/var/run/log"). Just assign empty string to the first two parameters of `NewSyslogHook`. It should look like the following.
|
||||
|
||||
```go
|
||||
import (
|
||||
"log/syslog"
|
||||
"github.com/sirupsen/logrus"
|
||||
logrus_syslog "github.com/sirupsen/logrus/hooks/syslog"
|
||||
)
|
||||
|
||||
func main() {
|
||||
log := logrus.New()
|
||||
hook, err := logrus_syslog.NewSyslogHook("", "", syslog.LOG_INFO, "")
|
||||
|
||||
if err == nil {
|
||||
log.Hooks.Add(hook)
|
||||
}
|
||||
}
|
||||
```
|
||||
-54
@@ -1,54 +0,0 @@
|
||||
// +build !windows,!nacl,!plan9
|
||||
|
||||
package logrus_syslog
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/sirupsen/logrus"
|
||||
"log/syslog"
|
||||
"os"
|
||||
)
|
||||
|
||||
// SyslogHook to send logs via syslog.
|
||||
type SyslogHook struct {
|
||||
Writer *syslog.Writer
|
||||
SyslogNetwork string
|
||||
SyslogRaddr string
|
||||
}
|
||||
|
||||
// Creates a hook to be added to an instance of logger. This is called with
|
||||
// `hook, err := NewSyslogHook("udp", "localhost:514", syslog.LOG_DEBUG, "")`
|
||||
// `if err == nil { log.Hooks.Add(hook) }`
|
||||
func NewSyslogHook(network, raddr string, priority syslog.Priority, tag string) (*SyslogHook, error) {
|
||||
w, err := syslog.Dial(network, raddr, priority, tag)
|
||||
return &SyslogHook{w, network, raddr}, err
|
||||
}
|
||||
|
||||
func (hook *SyslogHook) Fire(entry *logrus.Entry) error {
|
||||
line, err := entry.String()
|
||||
if err != nil {
|
||||
fmt.Fprintf(os.Stderr, "Unable to read entry, %v", err)
|
||||
return err
|
||||
}
|
||||
|
||||
switch entry.Level {
|
||||
case logrus.PanicLevel:
|
||||
return hook.Writer.Crit(line)
|
||||
case logrus.FatalLevel:
|
||||
return hook.Writer.Crit(line)
|
||||
case logrus.ErrorLevel:
|
||||
return hook.Writer.Err(line)
|
||||
case logrus.WarnLevel:
|
||||
return hook.Writer.Warning(line)
|
||||
case logrus.InfoLevel:
|
||||
return hook.Writer.Info(line)
|
||||
case logrus.DebugLevel:
|
||||
return hook.Writer.Debug(line)
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
func (hook *SyslogHook) Levels() []logrus.Level {
|
||||
return logrus.AllLevels
|
||||
}
|
||||
-26
@@ -1,26 +0,0 @@
|
||||
package logrus_syslog
|
||||
|
||||
import (
|
||||
"github.com/sirupsen/logrus"
|
||||
"log/syslog"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestLocalhostAddAndPrint(t *testing.T) {
|
||||
log := logrus.New()
|
||||
hook, err := NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
|
||||
|
||||
if err != nil {
|
||||
t.Errorf("Unable to connect to local syslog.")
|
||||
}
|
||||
|
||||
log.Hooks.Add(hook)
|
||||
|
||||
for _, level := range hook.Levels() {
|
||||
if len(log.Hooks[level]) != 1 {
|
||||
t.Errorf("SyslogHook was not added. The length of log.Hooks[%v]: %v", level, len(log.Hooks[level]))
|
||||
}
|
||||
}
|
||||
|
||||
log.Info("Congratulations!")
|
||||
}
|
||||
-95
@@ -1,95 +0,0 @@
|
||||
// The Test package is used for testing logrus. It is here for backwards
|
||||
// compatibility from when logrus' organization was upper-case. Please use
|
||||
// lower-case logrus and the `null` package instead of this one.
|
||||
package test
|
||||
|
||||
import (
|
||||
"io/ioutil"
|
||||
"sync"
|
||||
|
||||
"github.com/sirupsen/logrus"
|
||||
)
|
||||
|
||||
// Hook is a hook designed for dealing with logs in test scenarios.
|
||||
type Hook struct {
|
||||
// Entries is an array of all entries that have been received by this hook.
|
||||
// For safe access, use the AllEntries() method, rather than reading this
|
||||
// value directly.
|
||||
Entries []*logrus.Entry
|
||||
mu sync.RWMutex
|
||||
}
|
||||
|
||||
// NewGlobal installs a test hook for the global logger.
|
||||
func NewGlobal() *Hook {
|
||||
|
||||
hook := new(Hook)
|
||||
logrus.AddHook(hook)
|
||||
|
||||
return hook
|
||||
|
||||
}
|
||||
|
||||
// NewLocal installs a test hook for a given local logger.
|
||||
func NewLocal(logger *logrus.Logger) *Hook {
|
||||
|
||||
hook := new(Hook)
|
||||
logger.Hooks.Add(hook)
|
||||
|
||||
return hook
|
||||
|
||||
}
|
||||
|
||||
// NewNullLogger creates a discarding logger and installs the test hook.
|
||||
func NewNullLogger() (*logrus.Logger, *Hook) {
|
||||
|
||||
logger := logrus.New()
|
||||
logger.Out = ioutil.Discard
|
||||
|
||||
return logger, NewLocal(logger)
|
||||
|
||||
}
|
||||
|
||||
func (t *Hook) Fire(e *logrus.Entry) error {
|
||||
t.mu.Lock()
|
||||
defer t.mu.Unlock()
|
||||
t.Entries = append(t.Entries, e)
|
||||
return nil
|
||||
}
|
||||
|
||||
func (t *Hook) Levels() []logrus.Level {
|
||||
return logrus.AllLevels
|
||||
}
|
||||
|
||||
// LastEntry returns the last entry that was logged or nil.
|
||||
func (t *Hook) LastEntry() *logrus.Entry {
|
||||
t.mu.RLock()
|
||||
defer t.mu.RUnlock()
|
||||
i := len(t.Entries) - 1
|
||||
if i < 0 {
|
||||
return nil
|
||||
}
|
||||
// Make a copy, for safety
|
||||
e := *t.Entries[i]
|
||||
return &e
|
||||
}
|
||||
|
||||
// AllEntries returns all entries that were logged.
|
||||
func (t *Hook) AllEntries() []*logrus.Entry {
|
||||
t.mu.RLock()
|
||||
defer t.mu.RUnlock()
|
||||
// Make a copy so the returned value won't race with future log requests
|
||||
entries := make([]*logrus.Entry, len(t.Entries))
|
||||
for i, entry := range t.Entries {
|
||||
// Make a copy, for safety
|
||||
e := *entry
|
||||
entries[i] = &e
|
||||
}
|
||||
return entries
|
||||
}
|
||||
|
||||
// Reset removes all Entries from this test hook.
|
||||
func (t *Hook) Reset() {
|
||||
t.mu.Lock()
|
||||
defer t.mu.Unlock()
|
||||
t.Entries = make([]*logrus.Entry, 0)
|
||||
}
|
||||
-39
@@ -1,39 +0,0 @@
|
||||
package test
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"github.com/sirupsen/logrus"
|
||||
"github.com/stretchr/testify/assert"
|
||||
)
|
||||
|
||||
func TestAllHooks(t *testing.T) {
|
||||
|
||||
assert := assert.New(t)
|
||||
|
||||
logger, hook := NewNullLogger()
|
||||
assert.Nil(hook.LastEntry())
|
||||
assert.Equal(0, len(hook.Entries))
|
||||
|
||||
logger.Error("Hello error")
|
||||
assert.Equal(logrus.ErrorLevel, hook.LastEntry().Level)
|
||||
assert.Equal("Hello error", hook.LastEntry().Message)
|
||||
assert.Equal(1, len(hook.Entries))
|
||||
|
||||
logger.Warn("Hello warning")
|
||||
assert.Equal(logrus.WarnLevel, hook.LastEntry().Level)
|
||||
assert.Equal("Hello warning", hook.LastEntry().Message)
|
||||
assert.Equal(2, len(hook.Entries))
|
||||
|
||||
hook.Reset()
|
||||
assert.Nil(hook.LastEntry())
|
||||
assert.Equal(0, len(hook.Entries))
|
||||
|
||||
hook = NewGlobal()
|
||||
|
||||
logrus.Error("Hello error")
|
||||
assert.Equal(logrus.ErrorLevel, hook.LastEntry().Level)
|
||||
assert.Equal("Hello error", hook.LastEntry().Message)
|
||||
assert.Equal(1, len(hook.Entries))
|
||||
|
||||
}
|
||||
-74
@@ -1,74 +0,0 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
)
|
||||
|
||||
type fieldKey string
|
||||
type FieldMap map[fieldKey]string
|
||||
|
||||
const (
|
||||
FieldKeyMsg = "msg"
|
||||
FieldKeyLevel = "level"
|
||||
FieldKeyTime = "time"
|
||||
)
|
||||
|
||||
func (f FieldMap) resolve(key fieldKey) string {
|
||||
if k, ok := f[key]; ok {
|
||||
return k
|
||||
}
|
||||
|
||||
return string(key)
|
||||
}
|
||||
|
||||
type JSONFormatter struct {
|
||||
// TimestampFormat sets the format used for marshaling timestamps.
|
||||
TimestampFormat string
|
||||
|
||||
// DisableTimestamp allows disabling automatic timestamps in output
|
||||
DisableTimestamp bool
|
||||
|
||||
// FieldMap allows users to customize the names of keys for various fields.
|
||||
// As an example:
|
||||
// formatter := &JSONFormatter{
|
||||
// FieldMap: FieldMap{
|
||||
// FieldKeyTime: "@timestamp",
|
||||
// FieldKeyLevel: "@level",
|
||||
// FieldKeyMsg: "@message",
|
||||
// },
|
||||
// }
|
||||
FieldMap FieldMap
|
||||
}
|
||||
|
||||
func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
|
||||
data := make(Fields, len(entry.Data)+3)
|
||||
for k, v := range entry.Data {
|
||||
switch v := v.(type) {
|
||||
case error:
|
||||
// Otherwise errors are ignored by `encoding/json`
|
||||
// https://github.com/sirupsen/logrus/issues/137
|
||||
data[k] = v.Error()
|
||||
default:
|
||||
data[k] = v
|
||||
}
|
||||
}
|
||||
prefixFieldClashes(data)
|
||||
|
||||
timestampFormat := f.TimestampFormat
|
||||
if timestampFormat == "" {
|
||||
timestampFormat = DefaultTimestampFormat
|
||||
}
|
||||
|
||||
if !f.DisableTimestamp {
|
||||
data[f.FieldMap.resolve(FieldKeyTime)] = entry.Time.Format(timestampFormat)
|
||||
}
|
||||
data[f.FieldMap.resolve(FieldKeyMsg)] = entry.Message
|
||||
data[f.FieldMap.resolve(FieldKeyLevel)] = entry.Level.String()
|
||||
|
||||
serialized, err := json.Marshal(data)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
|
||||
}
|
||||
return append(serialized, '\n'), nil
|
||||
}
|
||||
-199
@@ -1,199 +0,0 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"errors"
|
||||
"strings"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestErrorNotLost(t *testing.T) {
|
||||
formatter := &JSONFormatter{}
|
||||
|
||||
b, err := formatter.Format(WithField("error", errors.New("wild walrus")))
|
||||
if err != nil {
|
||||
t.Fatal("Unable to format entry: ", err)
|
||||
}
|
||||
|
||||
entry := make(map[string]interface{})
|
||||
err = json.Unmarshal(b, &entry)
|
||||
if err != nil {
|
||||
t.Fatal("Unable to unmarshal formatted entry: ", err)
|
||||
}
|
||||
|
||||
if entry["error"] != "wild walrus" {
|
||||
t.Fatal("Error field not set")
|
||||
}
|
||||
}
|
||||
|
||||
func TestErrorNotLostOnFieldNotNamedError(t *testing.T) {
|
||||
formatter := &JSONFormatter{}
|
||||
|
||||
b, err := formatter.Format(WithField("omg", errors.New("wild walrus")))
|
||||
if err != nil {
|
||||
t.Fatal("Unable to format entry: ", err)
|
||||
}
|
||||
|
||||
entry := make(map[string]interface{})
|
||||
err = json.Unmarshal(b, &entry)
|
||||
if err != nil {
|
||||
t.Fatal("Unable to unmarshal formatted entry: ", err)
|
||||
}
|
||||
|
||||
if entry["omg"] != "wild walrus" {
|
||||
t.Fatal("Error field not set")
|
||||
}
|
||||
}
|
||||
|
||||
func TestFieldClashWithTime(t *testing.T) {
|
||||
formatter := &JSONFormatter{}
|
||||
|
||||
b, err := formatter.Format(WithField("time", "right now!"))
|
||||
if err != nil {
|
||||
t.Fatal("Unable to format entry: ", err)
|
||||
}
|
||||
|
||||
entry := make(map[string]interface{})
|
||||
err = json.Unmarshal(b, &entry)
|
||||
if err != nil {
|
||||
t.Fatal("Unable to unmarshal formatted entry: ", err)
|
||||
}
|
||||
|
||||
if entry["fields.time"] != "right now!" {
|
||||
t.Fatal("fields.time not set to original time field")
|
||||
}
|
||||
|
||||
if entry["time"] != "0001-01-01T00:00:00Z" {
|
||||
t.Fatal("time field not set to current time, was: ", entry["time"])
|
||||
}
|
||||
}
|
||||
|
||||
func TestFieldClashWithMsg(t *testing.T) {
|
||||
formatter := &JSONFormatter{}
|
||||
|
||||
b, err := formatter.Format(WithField("msg", "something"))
|
||||
if err != nil {
|
||||
t.Fatal("Unable to format entry: ", err)
|
||||
}
|
||||
|
||||
entry := make(map[string]interface{})
|
||||
err = json.Unmarshal(b, &entry)
|
||||
if err != nil {
|
||||
t.Fatal("Unable to unmarshal formatted entry: ", err)
|
||||
}
|
||||
|
||||
if entry["fields.msg"] != "something" {
|
||||
t.Fatal("fields.msg not set to original msg field")
|
||||
}
|
||||
}
|
||||
|
||||
func TestFieldClashWithLevel(t *testing.T) {
|
||||
formatter := &JSONFormatter{}
|
||||
|
||||
b, err := formatter.Format(WithField("level", "something"))
|
||||
if err != nil {
|
||||
t.Fatal("Unable to format entry: ", err)
|
||||
}
|
||||
|
||||
entry := make(map[string]interface{})
|
||||
err = json.Unmarshal(b, &entry)
|
||||
if err != nil {
|
||||
t.Fatal("Unable to unmarshal formatted entry: ", err)
|
||||
}
|
||||
|
||||
if entry["fields.level"] != "something" {
|
||||
t.Fatal("fields.level not set to original level field")
|
||||
}
|
||||
}
|
||||
|
||||
func TestJSONEntryEndsWithNewline(t *testing.T) {
|
||||
formatter := &JSONFormatter{}
|
||||
|
||||
b, err := formatter.Format(WithField("level", "something"))
|
||||
if err != nil {
|
||||
t.Fatal("Unable to format entry: ", err)
|
||||
}
|
||||
|
||||
if b[len(b)-1] != '\n' {
|
||||
t.Fatal("Expected JSON log entry to end with a newline")
|
||||
}
|
||||
}
|
||||
|
||||
func TestJSONMessageKey(t *testing.T) {
|
||||
formatter := &JSONFormatter{
|
||||
FieldMap: FieldMap{
|
||||
FieldKeyMsg: "message",
|
||||
},
|
||||
}
|
||||
|
||||
b, err := formatter.Format(&Entry{Message: "oh hai"})
|
||||
if err != nil {
|
||||
t.Fatal("Unable to format entry: ", err)
|
||||
}
|
||||
s := string(b)
|
||||
if !(strings.Contains(s, "message") && strings.Contains(s, "oh hai")) {
|
||||
t.Fatal("Expected JSON to format message key")
|
||||
}
|
||||
}
|
||||
|
||||
func TestJSONLevelKey(t *testing.T) {
|
||||
formatter := &JSONFormatter{
|
||||
FieldMap: FieldMap{
|
||||
FieldKeyLevel: "somelevel",
|
||||
},
|
||||
}
|
||||
|
||||
b, err := formatter.Format(WithField("level", "something"))
|
||||
if err != nil {
|
||||
t.Fatal("Unable to format entry: ", err)
|
||||
}
|
||||
s := string(b)
|
||||
if !strings.Contains(s, "somelevel") {
|
||||
t.Fatal("Expected JSON to format level key")
|
||||
}
|
||||
}
|
||||
|
||||
func TestJSONTimeKey(t *testing.T) {
|
||||
formatter := &JSONFormatter{
|
||||
FieldMap: FieldMap{
|
||||
FieldKeyTime: "timeywimey",
|
||||
},
|
||||
}
|
||||
|
||||
b, err := formatter.Format(WithField("level", "something"))
|
||||
if err != nil {
|
||||
t.Fatal("Unable to format entry: ", err)
|
||||
}
|
||||
s := string(b)
|
||||
if !strings.Contains(s, "timeywimey") {
|
||||
t.Fatal("Expected JSON to format time key")
|
||||
}
|
||||
}
|
||||
|
||||
func TestJSONDisableTimestamp(t *testing.T) {
|
||||
formatter := &JSONFormatter{
|
||||
DisableTimestamp: true,
|
||||
}
|
||||
|
||||
b, err := formatter.Format(WithField("level", "something"))
|
||||
if err != nil {
|
||||
t.Fatal("Unable to format entry: ", err)
|
||||
}
|
||||
s := string(b)
|
||||
if strings.Contains(s, FieldKeyTime) {
|
||||
t.Error("Did not prevent timestamp", s)
|
||||
}
|
||||
}
|
||||
|
||||
func TestJSONEnableTimestamp(t *testing.T) {
|
||||
formatter := &JSONFormatter{}
|
||||
|
||||
b, err := formatter.Format(WithField("level", "something"))
|
||||
if err != nil {
|
||||
t.Fatal("Unable to format entry: ", err)
|
||||
}
|
||||
s := string(b)
|
||||
if !strings.Contains(s, FieldKeyTime) {
|
||||
t.Error("Timestamp not present", s)
|
||||
}
|
||||
}
|
||||
-317
@@ -1,317 +0,0 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"io"
|
||||
"os"
|
||||
"sync"
|
||||
"sync/atomic"
|
||||
)
|
||||
|
||||
type Logger struct {
|
||||
// The logs are `io.Copy`'d to this in a mutex. It's common to set this to a
|
||||
// file, or leave it default which is `os.Stderr`. You can also set this to
|
||||
// something more adventorous, such as logging to Kafka.
|
||||
Out io.Writer
|
||||
// Hooks for the logger instance. These allow firing events based on logging
|
||||
// levels and log entries. For example, to send errors to an error tracking
|
||||
// service, log to StatsD or dump the core on fatal errors.
|
||||
Hooks LevelHooks
|
||||
// All log entries pass through the formatter before logged to Out. The
|
||||
// included formatters are `TextFormatter` and `JSONFormatter` for which
|
||||
// TextFormatter is the default. In development (when a TTY is attached) it
|
||||
// logs with colors, but to a file it wouldn't. You can easily implement your
|
||||
// own that implements the `Formatter` interface, see the `README` or included
|
||||
// formatters for examples.
|
||||
Formatter Formatter
|
||||
// The logging level the logger should log at. This is typically (and defaults
|
||||
// to) `logrus.Info`, which allows Info(), Warn(), Error() and Fatal() to be
|
||||
// logged. `logrus.Debug` is useful in
|
||||
Level Level
|
||||
// Used to sync writing to the log. Locking is enabled by Default
|
||||
mu MutexWrap
|
||||
// Reusable empty entry
|
||||
entryPool sync.Pool
|
||||
}
|
||||
|
||||
type MutexWrap struct {
|
||||
lock sync.Mutex
|
||||
disabled bool
|
||||
}
|
||||
|
||||
func (mw *MutexWrap) Lock() {
|
||||
if !mw.disabled {
|
||||
mw.lock.Lock()
|
||||
}
|
||||
}
|
||||
|
||||
func (mw *MutexWrap) Unlock() {
|
||||
if !mw.disabled {
|
||||
mw.lock.Unlock()
|
||||
}
|
||||
}
|
||||
|
||||
func (mw *MutexWrap) Disable() {
|
||||
mw.disabled = true
|
||||
}
|
||||
|
||||
// Creates a new logger. Configuration should be set by changing `Formatter`,
|
||||
// `Out` and `Hooks` directly on the default logger instance. You can also just
|
||||
// instantiate your own:
|
||||
//
|
||||
// var log = &Logger{
|
||||
// Out: os.Stderr,
|
||||
// Formatter: new(JSONFormatter),
|
||||
// Hooks: make(LevelHooks),
|
||||
// Level: logrus.DebugLevel,
|
||||
// }
|
||||
//
|
||||
// It's recommended to make this a global instance called `log`.
|
||||
func New() *Logger {
|
||||
return &Logger{
|
||||
Out: os.Stderr,
|
||||
Formatter: new(TextFormatter),
|
||||
Hooks: make(LevelHooks),
|
||||
Level: InfoLevel,
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) newEntry() *Entry {
|
||||
entry, ok := logger.entryPool.Get().(*Entry)
|
||||
if ok {
|
||||
return entry
|
||||
}
|
||||
return NewEntry(logger)
|
||||
}
|
||||
|
||||
func (logger *Logger) releaseEntry(entry *Entry) {
|
||||
logger.entryPool.Put(entry)
|
||||
}
|
||||
|
||||
// Adds a field to the log entry, note that it doesn't log until you call
|
||||
// Debug, Print, Info, Warn, Fatal or Panic. It only creates a log entry.
|
||||
// If you want multiple fields, use `WithFields`.
|
||||
func (logger *Logger) WithField(key string, value interface{}) *Entry {
|
||||
entry := logger.newEntry()
|
||||
defer logger.releaseEntry(entry)
|
||||
return entry.WithField(key, value)
|
||||
}
|
||||
|
||||
// Adds a struct of fields to the log entry. All it does is call `WithField` for
|
||||
// each `Field`.
|
||||
func (logger *Logger) WithFields(fields Fields) *Entry {
|
||||
entry := logger.newEntry()
|
||||
defer logger.releaseEntry(entry)
|
||||
return entry.WithFields(fields)
|
||||
}
|
||||
|
||||
// Add an error as single field to the log entry. All it does is call
|
||||
// `WithError` for the given `error`.
|
||||
func (logger *Logger) WithError(err error) *Entry {
|
||||
entry := logger.newEntry()
|
||||
defer logger.releaseEntry(entry)
|
||||
return entry.WithError(err)
|
||||
}
|
||||
|
||||
func (logger *Logger) Debugf(format string, args ...interface{}) {
|
||||
if logger.level() >= DebugLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Debugf(format, args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Infof(format string, args ...interface{}) {
|
||||
if logger.level() >= InfoLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Infof(format, args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Printf(format string, args ...interface{}) {
|
||||
entry := logger.newEntry()
|
||||
entry.Printf(format, args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
|
||||
func (logger *Logger) Warnf(format string, args ...interface{}) {
|
||||
if logger.level() >= WarnLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Warnf(format, args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Warningf(format string, args ...interface{}) {
|
||||
if logger.level() >= WarnLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Warnf(format, args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Errorf(format string, args ...interface{}) {
|
||||
if logger.level() >= ErrorLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Errorf(format, args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Fatalf(format string, args ...interface{}) {
|
||||
if logger.level() >= FatalLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Fatalf(format, args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
Exit(1)
|
||||
}
|
||||
|
||||
func (logger *Logger) Panicf(format string, args ...interface{}) {
|
||||
if logger.level() >= PanicLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Panicf(format, args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Debug(args ...interface{}) {
|
||||
if logger.level() >= DebugLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Debug(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Info(args ...interface{}) {
|
||||
if logger.level() >= InfoLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Info(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Print(args ...interface{}) {
|
||||
entry := logger.newEntry()
|
||||
entry.Info(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
|
||||
func (logger *Logger) Warn(args ...interface{}) {
|
||||
if logger.level() >= WarnLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Warn(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Warning(args ...interface{}) {
|
||||
if logger.level() >= WarnLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Warn(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Error(args ...interface{}) {
|
||||
if logger.level() >= ErrorLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Error(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Fatal(args ...interface{}) {
|
||||
if logger.level() >= FatalLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Fatal(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
Exit(1)
|
||||
}
|
||||
|
||||
func (logger *Logger) Panic(args ...interface{}) {
|
||||
if logger.level() >= PanicLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Panic(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Debugln(args ...interface{}) {
|
||||
if logger.level() >= DebugLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Debugln(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Infoln(args ...interface{}) {
|
||||
if logger.level() >= InfoLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Infoln(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Println(args ...interface{}) {
|
||||
entry := logger.newEntry()
|
||||
entry.Println(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
|
||||
func (logger *Logger) Warnln(args ...interface{}) {
|
||||
if logger.level() >= WarnLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Warnln(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Warningln(args ...interface{}) {
|
||||
if logger.level() >= WarnLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Warnln(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Errorln(args ...interface{}) {
|
||||
if logger.level() >= ErrorLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Errorln(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Fatalln(args ...interface{}) {
|
||||
if logger.level() >= FatalLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Fatalln(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
Exit(1)
|
||||
}
|
||||
|
||||
func (logger *Logger) Panicln(args ...interface{}) {
|
||||
if logger.level() >= PanicLevel {
|
||||
entry := logger.newEntry()
|
||||
entry.Panicln(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
//When file is opened with appending mode, it's safe to
|
||||
//write concurrently to a file (within 4k message on Linux).
|
||||
//In these cases user can choose to disable the lock.
|
||||
func (logger *Logger) SetNoLock() {
|
||||
logger.mu.Disable()
|
||||
}
|
||||
|
||||
func (logger *Logger) level() Level {
|
||||
return Level(atomic.LoadUint32((*uint32)(&logger.Level)))
|
||||
}
|
||||
|
||||
func (logger *Logger) SetLevel(level Level) {
|
||||
atomic.StoreUint32((*uint32)(&logger.Level), uint32(level))
|
||||
}
|
||||
-61
@@ -1,61 +0,0 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"os"
|
||||
"testing"
|
||||
)
|
||||
|
||||
// smallFields is a small size data set for benchmarking
|
||||
var loggerFields = Fields{
|
||||
"foo": "bar",
|
||||
"baz": "qux",
|
||||
"one": "two",
|
||||
"three": "four",
|
||||
}
|
||||
|
||||
func BenchmarkDummyLogger(b *testing.B) {
|
||||
nullf, err := os.OpenFile("/dev/null", os.O_WRONLY, 0666)
|
||||
if err != nil {
|
||||
b.Fatalf("%v", err)
|
||||
}
|
||||
defer nullf.Close()
|
||||
doLoggerBenchmark(b, nullf, &TextFormatter{DisableColors: true}, smallFields)
|
||||
}
|
||||
|
||||
func BenchmarkDummyLoggerNoLock(b *testing.B) {
|
||||
nullf, err := os.OpenFile("/dev/null", os.O_WRONLY|os.O_APPEND, 0666)
|
||||
if err != nil {
|
||||
b.Fatalf("%v", err)
|
||||
}
|
||||
defer nullf.Close()
|
||||
doLoggerBenchmarkNoLock(b, nullf, &TextFormatter{DisableColors: true}, smallFields)
|
||||
}
|
||||
|
||||
func doLoggerBenchmark(b *testing.B, out *os.File, formatter Formatter, fields Fields) {
|
||||
logger := Logger{
|
||||
Out: out,
|
||||
Level: InfoLevel,
|
||||
Formatter: formatter,
|
||||
}
|
||||
entry := logger.WithFields(fields)
|
||||
b.RunParallel(func(pb *testing.PB) {
|
||||
for pb.Next() {
|
||||
entry.Info("aaa")
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
func doLoggerBenchmarkNoLock(b *testing.B, out *os.File, formatter Formatter, fields Fields) {
|
||||
logger := Logger{
|
||||
Out: out,
|
||||
Level: InfoLevel,
|
||||
Formatter: formatter,
|
||||
}
|
||||
logger.SetNoLock()
|
||||
entry := logger.WithFields(fields)
|
||||
b.RunParallel(func(pb *testing.PB) {
|
||||
for pb.Next() {
|
||||
entry.Info("aaa")
|
||||
}
|
||||
})
|
||||
}
|
||||
-143
@@ -1,143 +0,0 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"log"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// Fields type, used to pass to `WithFields`.
|
||||
type Fields map[string]interface{}
|
||||
|
||||
// Level type
|
||||
type Level uint32
|
||||
|
||||
// Convert the Level to a string. E.g. PanicLevel becomes "panic".
|
||||
func (level Level) String() string {
|
||||
switch level {
|
||||
case DebugLevel:
|
||||
return "debug"
|
||||
case InfoLevel:
|
||||
return "info"
|
||||
case WarnLevel:
|
||||
return "warning"
|
||||
case ErrorLevel:
|
||||
return "error"
|
||||
case FatalLevel:
|
||||
return "fatal"
|
||||
case PanicLevel:
|
||||
return "panic"
|
||||
}
|
||||
|
||||
return "unknown"
|
||||
}
|
||||
|
||||
// ParseLevel takes a string level and returns the Logrus log level constant.
|
||||
func ParseLevel(lvl string) (Level, error) {
|
||||
switch strings.ToLower(lvl) {
|
||||
case "panic":
|
||||
return PanicLevel, nil
|
||||
case "fatal":
|
||||
return FatalLevel, nil
|
||||
case "error":
|
||||
return ErrorLevel, nil
|
||||
case "warn", "warning":
|
||||
return WarnLevel, nil
|
||||
case "info":
|
||||
return InfoLevel, nil
|
||||
case "debug":
|
||||
return DebugLevel, nil
|
||||
}
|
||||
|
||||
var l Level
|
||||
return l, fmt.Errorf("not a valid logrus Level: %q", lvl)
|
||||
}
|
||||
|
||||
// A constant exposing all logging levels
|
||||
var AllLevels = []Level{
|
||||
PanicLevel,
|
||||
FatalLevel,
|
||||
ErrorLevel,
|
||||
WarnLevel,
|
||||
InfoLevel,
|
||||
DebugLevel,
|
||||
}
|
||||
|
||||
// These are the different logging levels. You can set the logging level to log
|
||||
// on your instance of logger, obtained with `logrus.New()`.
|
||||
const (
|
||||
// PanicLevel level, highest level of severity. Logs and then calls panic with the
|
||||
// message passed to Debug, Info, ...
|
||||
PanicLevel Level = iota
|
||||
// FatalLevel level. Logs and then calls `os.Exit(1)`. It will exit even if the
|
||||
// logging level is set to Panic.
|
||||
FatalLevel
|
||||
// ErrorLevel level. Logs. Used for errors that should definitely be noted.
|
||||
// Commonly used for hooks to send errors to an error tracking service.
|
||||
ErrorLevel
|
||||
// WarnLevel level. Non-critical entries that deserve eyes.
|
||||
WarnLevel
|
||||
// InfoLevel level. General operational entries about what's going on inside the
|
||||
// application.
|
||||
InfoLevel
|
||||
// DebugLevel level. Usually only enabled when debugging. Very verbose logging.
|
||||
DebugLevel
|
||||
)
|
||||
|
||||
// Won't compile if StdLogger can't be realized by a log.Logger
|
||||
var (
|
||||
_ StdLogger = &log.Logger{}
|
||||
_ StdLogger = &Entry{}
|
||||
_ StdLogger = &Logger{}
|
||||
)
|
||||
|
||||
// StdLogger is what your logrus-enabled library should take, that way
|
||||
// it'll accept a stdlib logger and a logrus logger. There's no standard
|
||||
// interface, this is the closest we get, unfortunately.
|
||||
type StdLogger interface {
|
||||
Print(...interface{})
|
||||
Printf(string, ...interface{})
|
||||
Println(...interface{})
|
||||
|
||||
Fatal(...interface{})
|
||||
Fatalf(string, ...interface{})
|
||||
Fatalln(...interface{})
|
||||
|
||||
Panic(...interface{})
|
||||
Panicf(string, ...interface{})
|
||||
Panicln(...interface{})
|
||||
}
|
||||
|
||||
// The FieldLogger interface generalizes the Entry and Logger types
|
||||
type FieldLogger interface {
|
||||
WithField(key string, value interface{}) *Entry
|
||||
WithFields(fields Fields) *Entry
|
||||
WithError(err error) *Entry
|
||||
|
||||
Debugf(format string, args ...interface{})
|
||||
Infof(format string, args ...interface{})
|
||||
Printf(format string, args ...interface{})
|
||||
Warnf(format string, args ...interface{})
|
||||
Warningf(format string, args ...interface{})
|
||||
Errorf(format string, args ...interface{})
|
||||
Fatalf(format string, args ...interface{})
|
||||
Panicf(format string, args ...interface{})
|
||||
|
||||
Debug(args ...interface{})
|
||||
Info(args ...interface{})
|
||||
Print(args ...interface{})
|
||||
Warn(args ...interface{})
|
||||
Warning(args ...interface{})
|
||||
Error(args ...interface{})
|
||||
Fatal(args ...interface{})
|
||||
Panic(args ...interface{})
|
||||
|
||||
Debugln(args ...interface{})
|
||||
Infoln(args ...interface{})
|
||||
Println(args ...interface{})
|
||||
Warnln(args ...interface{})
|
||||
Warningln(args ...interface{})
|
||||
Errorln(args ...interface{})
|
||||
Fatalln(args ...interface{})
|
||||
Panicln(args ...interface{})
|
||||
}
|
||||
-386
@@ -1,386 +0,0 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"encoding/json"
|
||||
"strconv"
|
||||
"strings"
|
||||
"sync"
|
||||
"testing"
|
||||
|
||||
"github.com/stretchr/testify/assert"
|
||||
)
|
||||
|
||||
func LogAndAssertJSON(t *testing.T, log func(*Logger), assertions func(fields Fields)) {
|
||||
var buffer bytes.Buffer
|
||||
var fields Fields
|
||||
|
||||
logger := New()
|
||||
logger.Out = &buffer
|
||||
logger.Formatter = new(JSONFormatter)
|
||||
|
||||
log(logger)
|
||||
|
||||
err := json.Unmarshal(buffer.Bytes(), &fields)
|
||||
assert.Nil(t, err)
|
||||
|
||||
assertions(fields)
|
||||
}
|
||||
|
||||
func LogAndAssertText(t *testing.T, log func(*Logger), assertions func(fields map[string]string)) {
|
||||
var buffer bytes.Buffer
|
||||
|
||||
logger := New()
|
||||
logger.Out = &buffer
|
||||
logger.Formatter = &TextFormatter{
|
||||
DisableColors: true,
|
||||
}
|
||||
|
||||
log(logger)
|
||||
|
||||
fields := make(map[string]string)
|
||||
for _, kv := range strings.Split(buffer.String(), " ") {
|
||||
if !strings.Contains(kv, "=") {
|
||||
continue
|
||||
}
|
||||
kvArr := strings.Split(kv, "=")
|
||||
key := strings.TrimSpace(kvArr[0])
|
||||
val := kvArr[1]
|
||||
if kvArr[1][0] == '"' {
|
||||
var err error
|
||||
val, err = strconv.Unquote(val)
|
||||
assert.NoError(t, err)
|
||||
}
|
||||
fields[key] = val
|
||||
}
|
||||
assertions(fields)
|
||||
}
|
||||
|
||||
func TestPrint(t *testing.T) {
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.Print("test")
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, fields["msg"], "test")
|
||||
assert.Equal(t, fields["level"], "info")
|
||||
})
|
||||
}
|
||||
|
||||
func TestInfo(t *testing.T) {
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.Info("test")
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, fields["msg"], "test")
|
||||
assert.Equal(t, fields["level"], "info")
|
||||
})
|
||||
}
|
||||
|
||||
func TestWarn(t *testing.T) {
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.Warn("test")
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, fields["msg"], "test")
|
||||
assert.Equal(t, fields["level"], "warning")
|
||||
})
|
||||
}
|
||||
|
||||
func TestInfolnShouldAddSpacesBetweenStrings(t *testing.T) {
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.Infoln("test", "test")
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, fields["msg"], "test test")
|
||||
})
|
||||
}
|
||||
|
||||
func TestInfolnShouldAddSpacesBetweenStringAndNonstring(t *testing.T) {
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.Infoln("test", 10)
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, fields["msg"], "test 10")
|
||||
})
|
||||
}
|
||||
|
||||
func TestInfolnShouldAddSpacesBetweenTwoNonStrings(t *testing.T) {
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.Infoln(10, 10)
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, fields["msg"], "10 10")
|
||||
})
|
||||
}
|
||||
|
||||
func TestInfoShouldAddSpacesBetweenTwoNonStrings(t *testing.T) {
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.Infoln(10, 10)
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, fields["msg"], "10 10")
|
||||
})
|
||||
}
|
||||
|
||||
func TestInfoShouldNotAddSpacesBetweenStringAndNonstring(t *testing.T) {
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.Info("test", 10)
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, fields["msg"], "test10")
|
||||
})
|
||||
}
|
||||
|
||||
func TestInfoShouldNotAddSpacesBetweenStrings(t *testing.T) {
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.Info("test", "test")
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, fields["msg"], "testtest")
|
||||
})
|
||||
}
|
||||
|
||||
func TestWithFieldsShouldAllowAssignments(t *testing.T) {
|
||||
var buffer bytes.Buffer
|
||||
var fields Fields
|
||||
|
||||
logger := New()
|
||||
logger.Out = &buffer
|
||||
logger.Formatter = new(JSONFormatter)
|
||||
|
||||
localLog := logger.WithFields(Fields{
|
||||
"key1": "value1",
|
||||
})
|
||||
|
||||
localLog.WithField("key2", "value2").Info("test")
|
||||
err := json.Unmarshal(buffer.Bytes(), &fields)
|
||||
assert.Nil(t, err)
|
||||
|
||||
assert.Equal(t, "value2", fields["key2"])
|
||||
assert.Equal(t, "value1", fields["key1"])
|
||||
|
||||
buffer = bytes.Buffer{}
|
||||
fields = Fields{}
|
||||
localLog.Info("test")
|
||||
err = json.Unmarshal(buffer.Bytes(), &fields)
|
||||
assert.Nil(t, err)
|
||||
|
||||
_, ok := fields["key2"]
|
||||
assert.Equal(t, false, ok)
|
||||
assert.Equal(t, "value1", fields["key1"])
|
||||
}
|
||||
|
||||
func TestUserSuppliedFieldDoesNotOverwriteDefaults(t *testing.T) {
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.WithField("msg", "hello").Info("test")
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, fields["msg"], "test")
|
||||
})
|
||||
}
|
||||
|
||||
func TestUserSuppliedMsgFieldHasPrefix(t *testing.T) {
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.WithField("msg", "hello").Info("test")
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, fields["msg"], "test")
|
||||
assert.Equal(t, fields["fields.msg"], "hello")
|
||||
})
|
||||
}
|
||||
|
||||
func TestUserSuppliedTimeFieldHasPrefix(t *testing.T) {
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.WithField("time", "hello").Info("test")
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, fields["fields.time"], "hello")
|
||||
})
|
||||
}
|
||||
|
||||
func TestUserSuppliedLevelFieldHasPrefix(t *testing.T) {
|
||||
LogAndAssertJSON(t, func(log *Logger) {
|
||||
log.WithField("level", 1).Info("test")
|
||||
}, func(fields Fields) {
|
||||
assert.Equal(t, fields["level"], "info")
|
||||
assert.Equal(t, fields["fields.level"], 1.0) // JSON has floats only
|
||||
})
|
||||
}
|
||||
|
||||
func TestDefaultFieldsAreNotPrefixed(t *testing.T) {
|
||||
LogAndAssertText(t, func(log *Logger) {
|
||||
ll := log.WithField("herp", "derp")
|
||||
ll.Info("hello")
|
||||
ll.Info("bye")
|
||||
}, func(fields map[string]string) {
|
||||
for _, fieldName := range []string{"fields.level", "fields.time", "fields.msg"} {
|
||||
if _, ok := fields[fieldName]; ok {
|
||||
t.Fatalf("should not have prefixed %q: %v", fieldName, fields)
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
func TestDoubleLoggingDoesntPrefixPreviousFields(t *testing.T) {
|
||||
|
||||
var buffer bytes.Buffer
|
||||
var fields Fields
|
||||
|
||||
logger := New()
|
||||
logger.Out = &buffer
|
||||
logger.Formatter = new(JSONFormatter)
|
||||
|
||||
llog := logger.WithField("context", "eating raw fish")
|
||||
|
||||
llog.Info("looks delicious")
|
||||
|
||||
err := json.Unmarshal(buffer.Bytes(), &fields)
|
||||
assert.NoError(t, err, "should have decoded first message")
|
||||
assert.Equal(t, len(fields), 4, "should only have msg/time/level/context fields")
|
||||
assert.Equal(t, fields["msg"], "looks delicious")
|
||||
assert.Equal(t, fields["context"], "eating raw fish")
|
||||
|
||||
buffer.Reset()
|
||||
|
||||
llog.Warn("omg it is!")
|
||||
|
||||
err = json.Unmarshal(buffer.Bytes(), &fields)
|
||||
assert.NoError(t, err, "should have decoded second message")
|
||||
assert.Equal(t, len(fields), 4, "should only have msg/time/level/context fields")
|
||||
assert.Equal(t, fields["msg"], "omg it is!")
|
||||
assert.Equal(t, fields["context"], "eating raw fish")
|
||||
assert.Nil(t, fields["fields.msg"], "should not have prefixed previous `msg` entry")
|
||||
|
||||
}
|
||||
|
||||
func TestConvertLevelToString(t *testing.T) {
|
||||
assert.Equal(t, "debug", DebugLevel.String())
|
||||
assert.Equal(t, "info", InfoLevel.String())
|
||||
assert.Equal(t, "warning", WarnLevel.String())
|
||||
assert.Equal(t, "error", ErrorLevel.String())
|
||||
assert.Equal(t, "fatal", FatalLevel.String())
|
||||
assert.Equal(t, "panic", PanicLevel.String())
|
||||
}
|
||||
|
||||
func TestParseLevel(t *testing.T) {
|
||||
l, err := ParseLevel("panic")
|
||||
assert.Nil(t, err)
|
||||
assert.Equal(t, PanicLevel, l)
|
||||
|
||||
l, err = ParseLevel("PANIC")
|
||||
assert.Nil(t, err)
|
||||
assert.Equal(t, PanicLevel, l)
|
||||
|
||||
l, err = ParseLevel("fatal")
|
||||
assert.Nil(t, err)
|
||||
assert.Equal(t, FatalLevel, l)
|
||||
|
||||
l, err = ParseLevel("FATAL")
|
||||
assert.Nil(t, err)
|
||||
assert.Equal(t, FatalLevel, l)
|
||||
|
||||
l, err = ParseLevel("error")
|
||||
assert.Nil(t, err)
|
||||
assert.Equal(t, ErrorLevel, l)
|
||||
|
||||
l, err = ParseLevel("ERROR")
|
||||
assert.Nil(t, err)
|
||||
assert.Equal(t, ErrorLevel, l)
|
||||
|
||||
l, err = ParseLevel("warn")
|
||||
assert.Nil(t, err)
|
||||
assert.Equal(t, WarnLevel, l)
|
||||
|
||||
l, err = ParseLevel("WARN")
|
||||
assert.Nil(t, err)
|
||||
assert.Equal(t, WarnLevel, l)
|
||||
|
||||
l, err = ParseLevel("warning")
|
||||
assert.Nil(t, err)
|
||||
assert.Equal(t, WarnLevel, l)
|
||||
|
||||
l, err = ParseLevel("WARNING")
|
||||
assert.Nil(t, err)
|
||||
assert.Equal(t, WarnLevel, l)
|
||||
|
||||
l, err = ParseLevel("info")
|
||||
assert.Nil(t, err)
|
||||
assert.Equal(t, InfoLevel, l)
|
||||
|
||||
l, err = ParseLevel("INFO")
|
||||
assert.Nil(t, err)
|
||||
assert.Equal(t, InfoLevel, l)
|
||||
|
||||
l, err = ParseLevel("debug")
|
||||
assert.Nil(t, err)
|
||||
assert.Equal(t, DebugLevel, l)
|
||||
|
||||
l, err = ParseLevel("DEBUG")
|
||||
assert.Nil(t, err)
|
||||
assert.Equal(t, DebugLevel, l)
|
||||
|
||||
l, err = ParseLevel("invalid")
|
||||
assert.Equal(t, "not a valid logrus Level: \"invalid\"", err.Error())
|
||||
}
|
||||
|
||||
func TestGetSetLevelRace(t *testing.T) {
|
||||
wg := sync.WaitGroup{}
|
||||
for i := 0; i < 100; i++ {
|
||||
wg.Add(1)
|
||||
go func(i int) {
|
||||
defer wg.Done()
|
||||
if i%2 == 0 {
|
||||
SetLevel(InfoLevel)
|
||||
} else {
|
||||
GetLevel()
|
||||
}
|
||||
}(i)
|
||||
|
||||
}
|
||||
wg.Wait()
|
||||
}
|
||||
|
||||
func TestLoggingRace(t *testing.T) {
|
||||
logger := New()
|
||||
|
||||
var wg sync.WaitGroup
|
||||
wg.Add(100)
|
||||
|
||||
for i := 0; i < 100; i++ {
|
||||
go func() {
|
||||
logger.Info("info")
|
||||
wg.Done()
|
||||
}()
|
||||
}
|
||||
wg.Wait()
|
||||
}
|
||||
|
||||
// Compile test
|
||||
func TestLogrusInterface(t *testing.T) {
|
||||
var buffer bytes.Buffer
|
||||
fn := func(l FieldLogger) {
|
||||
b := l.WithField("key", "value")
|
||||
b.Debug("Test")
|
||||
}
|
||||
// test logger
|
||||
logger := New()
|
||||
logger.Out = &buffer
|
||||
fn(logger)
|
||||
|
||||
// test Entry
|
||||
e := logger.WithField("another", "value")
|
||||
fn(e)
|
||||
}
|
||||
|
||||
// Implements io.Writer using channels for synchronization, so we can wait on
|
||||
// the Entry.Writer goroutine to write in a non-racey way. This does assume that
|
||||
// there is a single call to Logger.Out for each message.
|
||||
type channelWriter chan []byte
|
||||
|
||||
func (cw channelWriter) Write(p []byte) (int, error) {
|
||||
cw <- p
|
||||
return len(p), nil
|
||||
}
|
||||
|
||||
func TestEntryWriter(t *testing.T) {
|
||||
cw := channelWriter(make(chan []byte, 1))
|
||||
log := New()
|
||||
log.Out = cw
|
||||
log.Formatter = new(JSONFormatter)
|
||||
log.WithField("foo", "bar").WriterLevel(WarnLevel).Write([]byte("hello\n"))
|
||||
|
||||
bs := <-cw
|
||||
var fields Fields
|
||||
err := json.Unmarshal(bs, &fields)
|
||||
assert.Nil(t, err)
|
||||
assert.Equal(t, fields["foo"], "bar")
|
||||
assert.Equal(t, fields["level"], "warning")
|
||||
}
|
||||
-10
@@ -1,10 +0,0 @@
|
||||
// +build appengine
|
||||
|
||||
package logrus
|
||||
|
||||
import "io"
|
||||
|
||||
// IsTerminal returns true if stderr's file descriptor is a terminal.
|
||||
func IsTerminal(f io.Writer) bool {
|
||||
return true
|
||||
}
|
||||
-10
@@ -1,10 +0,0 @@
|
||||
// +build darwin freebsd openbsd netbsd dragonfly
|
||||
// +build !appengine
|
||||
|
||||
package logrus
|
||||
|
||||
import "syscall"
|
||||
|
||||
const ioctlReadTermios = syscall.TIOCGETA
|
||||
|
||||
type Termios syscall.Termios
|
||||
-14
@@ -1,14 +0,0 @@
|
||||
// Based on ssh/terminal:
|
||||
// Copyright 2013 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !appengine
|
||||
|
||||
package logrus
|
||||
|
||||
import "syscall"
|
||||
|
||||
const ioctlReadTermios = syscall.TCGETS
|
||||
|
||||
type Termios syscall.Termios
|
||||
-28
@@ -1,28 +0,0 @@
|
||||
// Based on ssh/terminal:
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build linux darwin freebsd openbsd netbsd dragonfly
|
||||
// +build !appengine
|
||||
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"io"
|
||||
"os"
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
// IsTerminal returns true if stderr's file descriptor is a terminal.
|
||||
func IsTerminal(f io.Writer) bool {
|
||||
var termios Termios
|
||||
switch v := f.(type) {
|
||||
case *os.File:
|
||||
_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(v.Fd()), ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
|
||||
return err == 0
|
||||
default:
|
||||
return false
|
||||
}
|
||||
}
|
||||
-21
@@ -1,21 +0,0 @@
|
||||
// +build solaris,!appengine
|
||||
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"io"
|
||||
"os"
|
||||
|
||||
"golang.org/x/sys/unix"
|
||||
)
|
||||
|
||||
// IsTerminal returns true if the given file descriptor is a terminal.
|
||||
func IsTerminal(f io.Writer) bool {
|
||||
switch v := f.(type) {
|
||||
case *os.File:
|
||||
_, err := unix.IoctlGetTermios(int(v.Fd()), unix.TCGETA)
|
||||
return err == nil
|
||||
default:
|
||||
return false
|
||||
}
|
||||
}
|
||||
-82
@@ -1,82 +0,0 @@
|
||||
// Based on ssh/terminal:
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build windows,!appengine
|
||||
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"errors"
|
||||
"io"
|
||||
"os"
|
||||
"os/exec"
|
||||
"strconv"
|
||||
"strings"
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
var kernel32 = syscall.NewLazyDLL("kernel32.dll")
|
||||
|
||||
var (
|
||||
procGetConsoleMode = kernel32.NewProc("GetConsoleMode")
|
||||
procSetConsoleMode = kernel32.NewProc("SetConsoleMode")
|
||||
)
|
||||
|
||||
const (
|
||||
enableProcessedOutput = 0x0001
|
||||
enableWrapAtEolOutput = 0x0002
|
||||
enableVirtualTerminalProcessing = 0x0004
|
||||
)
|
||||
|
||||
func getVersion() (float64, error) {
|
||||
stdout, stderr := &bytes.Buffer{}, &bytes.Buffer{}
|
||||
cmd := exec.Command("cmd", "ver")
|
||||
cmd.Stdout = stdout
|
||||
cmd.Stderr = stderr
|
||||
err := cmd.Run()
|
||||
if err != nil {
|
||||
return -1, err
|
||||
}
|
||||
|
||||
// The output should be like "Microsoft Windows [Version XX.X.XXXXXX]"
|
||||
version := strings.Replace(stdout.String(), "\n", "", -1)
|
||||
version = strings.Replace(version, "\r\n", "", -1)
|
||||
|
||||
x1 := strings.Index(version, "[Version")
|
||||
|
||||
if x1 == -1 || strings.Index(version, "]") == -1 {
|
||||
return -1, errors.New("Can't determine Windows version")
|
||||
}
|
||||
|
||||
return strconv.ParseFloat(version[x1+9:x1+13], 64)
|
||||
}
|
||||
|
||||
func init() {
|
||||
ver, err := getVersion()
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
// Activate Virtual Processing for Windows CMD
|
||||
// Info: https://msdn.microsoft.com/en-us/library/windows/desktop/ms686033(v=vs.85).aspx
|
||||
if ver >= 10 {
|
||||
handle := syscall.Handle(os.Stderr.Fd())
|
||||
procSetConsoleMode.Call(uintptr(handle), enableProcessedOutput|enableWrapAtEolOutput|enableVirtualTerminalProcessing)
|
||||
}
|
||||
}
|
||||
|
||||
// IsTerminal returns true if stderr's file descriptor is a terminal.
|
||||
func IsTerminal(f io.Writer) bool {
|
||||
switch v := f.(type) {
|
||||
case *os.File:
|
||||
var st uint32
|
||||
r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(v.Fd()), uintptr(unsafe.Pointer(&st)), 0)
|
||||
return r != 0 && e == 0
|
||||
default:
|
||||
return false
|
||||
}
|
||||
}
|
||||
-189
@@ -1,189 +0,0 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"sort"
|
||||
"strings"
|
||||
"sync"
|
||||
"time"
|
||||
)
|
||||
|
||||
const (
|
||||
nocolor = 0
|
||||
red = 31
|
||||
green = 32
|
||||
yellow = 33
|
||||
blue = 36
|
||||
gray = 37
|
||||
)
|
||||
|
||||
var (
|
||||
baseTimestamp time.Time
|
||||
)
|
||||
|
||||
func init() {
|
||||
baseTimestamp = time.Now()
|
||||
}
|
||||
|
||||
type TextFormatter struct {
|
||||
// Set to true to bypass checking for a TTY before outputting colors.
|
||||
ForceColors bool
|
||||
|
||||
// Force disabling colors.
|
||||
DisableColors bool
|
||||
|
||||
// Disable timestamp logging. useful when output is redirected to logging
|
||||
// system that already adds timestamps.
|
||||
DisableTimestamp bool
|
||||
|
||||
// Enable logging the full timestamp when a TTY is attached instead of just
|
||||
// the time passed since beginning of execution.
|
||||
FullTimestamp bool
|
||||
|
||||
// TimestampFormat to use for display when a full timestamp is printed
|
||||
TimestampFormat string
|
||||
|
||||
// The fields are sorted by default for a consistent output. For applications
|
||||
// that log extremely frequently and don't use the JSON formatter this may not
|
||||
// be desired.
|
||||
DisableSorting bool
|
||||
|
||||
// QuoteEmptyFields will wrap empty fields in quotes if true
|
||||
QuoteEmptyFields bool
|
||||
|
||||
// QuoteCharacter can be set to the override the default quoting character "
|
||||
// with something else. For example: ', or `.
|
||||
QuoteCharacter string
|
||||
|
||||
// Whether the logger's out is to a terminal
|
||||
isTerminal bool
|
||||
|
||||
sync.Once
|
||||
}
|
||||
|
||||
func (f *TextFormatter) init(entry *Entry) {
|
||||
if len(f.QuoteCharacter) == 0 {
|
||||
f.QuoteCharacter = "\""
|
||||
}
|
||||
if entry.Logger != nil {
|
||||
f.isTerminal = IsTerminal(entry.Logger.Out)
|
||||
}
|
||||
}
|
||||
|
||||
func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
|
||||
var b *bytes.Buffer
|
||||
keys := make([]string, 0, len(entry.Data))
|
||||
for k := range entry.Data {
|
||||
keys = append(keys, k)
|
||||
}
|
||||
|
||||
if !f.DisableSorting {
|
||||
sort.Strings(keys)
|
||||
}
|
||||
if entry.Buffer != nil {
|
||||
b = entry.Buffer
|
||||
} else {
|
||||
b = &bytes.Buffer{}
|
||||
}
|
||||
|
||||
prefixFieldClashes(entry.Data)
|
||||
|
||||
f.Do(func() { f.init(entry) })
|
||||
|
||||
isColored := (f.ForceColors || f.isTerminal) && !f.DisableColors
|
||||
|
||||
timestampFormat := f.TimestampFormat
|
||||
if timestampFormat == "" {
|
||||
timestampFormat = DefaultTimestampFormat
|
||||
}
|
||||
if isColored {
|
||||
f.printColored(b, entry, keys, timestampFormat)
|
||||
} else {
|
||||
if !f.DisableTimestamp {
|
||||
f.appendKeyValue(b, "time", entry.Time.Format(timestampFormat))
|
||||
}
|
||||
f.appendKeyValue(b, "level", entry.Level.String())
|
||||
if entry.Message != "" {
|
||||
f.appendKeyValue(b, "msg", entry.Message)
|
||||
}
|
||||
for _, key := range keys {
|
||||
f.appendKeyValue(b, key, entry.Data[key])
|
||||
}
|
||||
}
|
||||
|
||||
b.WriteByte('\n')
|
||||
return b.Bytes(), nil
|
||||
}
|
||||
|
||||
func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []string, timestampFormat string) {
|
||||
var levelColor int
|
||||
switch entry.Level {
|
||||
case DebugLevel:
|
||||
levelColor = gray
|
||||
case WarnLevel:
|
||||
levelColor = yellow
|
||||
case ErrorLevel, FatalLevel, PanicLevel:
|
||||
levelColor = red
|
||||
default:
|
||||
levelColor = blue
|
||||
}
|
||||
|
||||
levelText := strings.ToUpper(entry.Level.String())[0:4]
|
||||
|
||||
if f.DisableTimestamp {
|
||||
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m %-44s ", levelColor, levelText, entry.Message)
|
||||
} else if !f.FullTimestamp {
|
||||
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, int(entry.Time.Sub(baseTimestamp)/time.Second), entry.Message)
|
||||
} else {
|
||||
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s] %-44s ", levelColor, levelText, entry.Time.Format(timestampFormat), entry.Message)
|
||||
}
|
||||
for _, k := range keys {
|
||||
v := entry.Data[k]
|
||||
fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=", levelColor, k)
|
||||
f.appendValue(b, v)
|
||||
}
|
||||
}
|
||||
|
||||
func (f *TextFormatter) needsQuoting(text string) bool {
|
||||
if f.QuoteEmptyFields && len(text) == 0 {
|
||||
return true
|
||||
}
|
||||
for _, ch := range text {
|
||||
if !((ch >= 'a' && ch <= 'z') ||
|
||||
(ch >= 'A' && ch <= 'Z') ||
|
||||
(ch >= '0' && ch <= '9') ||
|
||||
ch == '-' || ch == '.' || ch == '_' || ch == '/' || ch == '@' || ch == '^' || ch == '+') {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key string, value interface{}) {
|
||||
|
||||
b.WriteString(key)
|
||||
b.WriteByte('=')
|
||||
f.appendValue(b, value)
|
||||
b.WriteByte(' ')
|
||||
}
|
||||
|
||||
func (f *TextFormatter) appendValue(b *bytes.Buffer, value interface{}) {
|
||||
stringVal, ok := value.(string)
|
||||
if !ok {
|
||||
stringVal = fmt.Sprint(value)
|
||||
}
|
||||
|
||||
if !f.needsQuoting(stringVal) {
|
||||
b.WriteString(stringVal)
|
||||
} else {
|
||||
b.WriteString(f.quoteString(stringVal))
|
||||
}
|
||||
}
|
||||
|
||||
func (f *TextFormatter) quoteString(v string) string {
|
||||
escapedQuote := fmt.Sprintf("\\%s", f.QuoteCharacter)
|
||||
escapedValue := strings.Replace(v, f.QuoteCharacter, escapedQuote, -1)
|
||||
|
||||
return fmt.Sprintf("%s%v%s", f.QuoteCharacter, escapedValue, f.QuoteCharacter)
|
||||
}
|
||||
-161
@@ -1,161 +0,0 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"errors"
|
||||
"strings"
|
||||
"testing"
|
||||
"time"
|
||||
"fmt"
|
||||
)
|
||||
|
||||
func TestQuoting(t *testing.T) {
|
||||
tf := &TextFormatter{DisableColors: true}
|
||||
|
||||
checkQuoting := func(q bool, value interface{}) {
|
||||
b, _ := tf.Format(WithField("test", value))
|
||||
idx := bytes.Index(b, ([]byte)("test="))
|
||||
cont := bytes.Contains(b[idx+5:], []byte(tf.QuoteCharacter))
|
||||
if cont != q {
|
||||
if q {
|
||||
t.Errorf("quoting expected for: %#v", value)
|
||||
} else {
|
||||
t.Errorf("quoting not expected for: %#v", value)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
checkQuoting(false, "")
|
||||
checkQuoting(false, "abcd")
|
||||
checkQuoting(false, "v1.0")
|
||||
checkQuoting(false, "1234567890")
|
||||
checkQuoting(false, "/foobar")
|
||||
checkQuoting(false, "foo_bar")
|
||||
checkQuoting(false, "foo@bar")
|
||||
checkQuoting(false, "foobar^")
|
||||
checkQuoting(false, "+/-_^@f.oobar")
|
||||
checkQuoting(true, "foobar$")
|
||||
checkQuoting(true, "&foobar")
|
||||
checkQuoting(true, "x y")
|
||||
checkQuoting(true, "x,y")
|
||||
checkQuoting(false, errors.New("invalid"))
|
||||
checkQuoting(true, errors.New("invalid argument"))
|
||||
|
||||
// Test for custom quote character.
|
||||
tf.QuoteCharacter = "`"
|
||||
checkQuoting(false, "")
|
||||
checkQuoting(false, "abcd")
|
||||
checkQuoting(false, "/foobar")
|
||||
checkQuoting(false, "foo_bar")
|
||||
checkQuoting(false, "foo@bar")
|
||||
checkQuoting(false, "foobar^")
|
||||
checkQuoting(true, "foobar$")
|
||||
checkQuoting(true, "&foobar")
|
||||
checkQuoting(true, errors.New("invalid argument"))
|
||||
|
||||
// Test for multi-character quotes.
|
||||
tf.QuoteCharacter = "§~±"
|
||||
checkQuoting(false, "abcd")
|
||||
checkQuoting(true, errors.New("invalid argument"))
|
||||
|
||||
// Test for quoting empty fields.
|
||||
tf.QuoteEmptyFields = true
|
||||
checkQuoting(true, "")
|
||||
checkQuoting(false, "abcd")
|
||||
checkQuoting(true, errors.New("invalid argument"))
|
||||
}
|
||||
|
||||
func TestEscaping_DefaultQuoteCharacter(t *testing.T) {
|
||||
tf := &TextFormatter{DisableColors: true}
|
||||
|
||||
testCases := []struct {
|
||||
value string
|
||||
expected string
|
||||
}{
|
||||
{`ba"r`, `ba\"r`},
|
||||
{`ba'r`, `ba'r`},
|
||||
}
|
||||
|
||||
for _, tc := range testCases {
|
||||
b, _ := tf.Format(WithField("test", tc.value))
|
||||
if !bytes.Contains(b, []byte(tc.expected)) {
|
||||
t.Errorf("escaping expected for %q (result was %q instead of %q)", tc.value, string(b), tc.expected)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestEscaping_Interface(t *testing.T) {
|
||||
tf := &TextFormatter{DisableColors: true}
|
||||
|
||||
ts := time.Now()
|
||||
|
||||
testCases := []struct {
|
||||
value interface{}
|
||||
expected string
|
||||
}{
|
||||
{ts, fmt.Sprintf("\"%s\"", ts.String())},
|
||||
{errors.New("error: something went wrong"), "\"error: something went wrong\""},
|
||||
}
|
||||
|
||||
for _, tc := range testCases {
|
||||
b, _ := tf.Format(WithField("test", tc.value))
|
||||
if !bytes.Contains(b, []byte(tc.expected)) {
|
||||
t.Errorf("escaping expected for %q (result was %q instead of %q)", tc.value, string(b), tc.expected)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestEscaping_CustomQuoteCharacter(t *testing.T) {
|
||||
tf := &TextFormatter{DisableColors: true}
|
||||
|
||||
testCases := []struct {
|
||||
value string
|
||||
expected string
|
||||
quoteChar string
|
||||
}{
|
||||
{`ba"r`, `ba"r`, `'`},
|
||||
{`ba'r`, `ba\'r`, `'`},
|
||||
{`ba'r`, `ba'r`, `^`},
|
||||
}
|
||||
|
||||
for _, tc := range testCases {
|
||||
tf.QuoteCharacter = tc.quoteChar
|
||||
b, _ := tf.Format(WithField("test", tc.value))
|
||||
if !bytes.Contains(b, []byte(tc.expected)) {
|
||||
t.Errorf("escaping expected for %q (result was %q instead of %q)", tc.value, string(b), tc.expected)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestTimestampFormat(t *testing.T) {
|
||||
checkTimeStr := func(format string) {
|
||||
customFormatter := &TextFormatter{DisableColors: true, TimestampFormat: format}
|
||||
customStr, _ := customFormatter.Format(WithField("test", "test"))
|
||||
timeStart := bytes.Index(customStr, ([]byte)("time="))
|
||||
timeEnd := bytes.Index(customStr, ([]byte)("level="))
|
||||
timeStr := customStr[timeStart+5+len(customFormatter.QuoteCharacter) : timeEnd-1-len(customFormatter.QuoteCharacter)]
|
||||
if format == "" {
|
||||
format = time.RFC3339
|
||||
}
|
||||
_, e := time.Parse(format, (string)(timeStr))
|
||||
if e != nil {
|
||||
t.Errorf("time string \"%s\" did not match provided time format \"%s\": %s", timeStr, format, e)
|
||||
}
|
||||
}
|
||||
|
||||
checkTimeStr("2006-01-02T15:04:05.000000000Z07:00")
|
||||
checkTimeStr("Mon Jan _2 15:04:05 2006")
|
||||
checkTimeStr("")
|
||||
}
|
||||
|
||||
func TestDisableTimestampWithColoredOutput(t *testing.T) {
|
||||
tf := &TextFormatter{DisableTimestamp: true, ForceColors: true}
|
||||
|
||||
b, _ := tf.Format(WithField("test", "test"))
|
||||
if strings.Contains(string(b), "[0000]") {
|
||||
t.Error("timestamp not expected when DisableTimestamp is true")
|
||||
}
|
||||
}
|
||||
|
||||
// TODO add tests for sorting etc., this requires a parser for the text
|
||||
// formatter output.
|
||||
-62
@@ -1,62 +0,0 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"io"
|
||||
"runtime"
|
||||
)
|
||||
|
||||
func (logger *Logger) Writer() *io.PipeWriter {
|
||||
return logger.WriterLevel(InfoLevel)
|
||||
}
|
||||
|
||||
func (logger *Logger) WriterLevel(level Level) *io.PipeWriter {
|
||||
return NewEntry(logger).WriterLevel(level)
|
||||
}
|
||||
|
||||
func (entry *Entry) Writer() *io.PipeWriter {
|
||||
return entry.WriterLevel(InfoLevel)
|
||||
}
|
||||
|
||||
func (entry *Entry) WriterLevel(level Level) *io.PipeWriter {
|
||||
reader, writer := io.Pipe()
|
||||
|
||||
var printFunc func(args ...interface{})
|
||||
|
||||
switch level {
|
||||
case DebugLevel:
|
||||
printFunc = entry.Debug
|
||||
case InfoLevel:
|
||||
printFunc = entry.Info
|
||||
case WarnLevel:
|
||||
printFunc = entry.Warn
|
||||
case ErrorLevel:
|
||||
printFunc = entry.Error
|
||||
case FatalLevel:
|
||||
printFunc = entry.Fatal
|
||||
case PanicLevel:
|
||||
printFunc = entry.Panic
|
||||
default:
|
||||
printFunc = entry.Print
|
||||
}
|
||||
|
||||
go entry.writerScanner(reader, printFunc)
|
||||
runtime.SetFinalizer(writer, writerFinalizer)
|
||||
|
||||
return writer
|
||||
}
|
||||
|
||||
func (entry *Entry) writerScanner(reader *io.PipeReader, printFunc func(args ...interface{})) {
|
||||
scanner := bufio.NewScanner(reader)
|
||||
for scanner.Scan() {
|
||||
printFunc(scanner.Text())
|
||||
}
|
||||
if err := scanner.Err(); err != nil {
|
||||
entry.Errorf("Error while reading from Writer: %s", err)
|
||||
}
|
||||
reader.Close()
|
||||
}
|
||||
|
||||
func writerFinalizer(writer *io.PipeWriter) {
|
||||
writer.Close()
|
||||
}
|
||||
-27
@@ -1,27 +0,0 @@
|
||||
Copyright (c) 2012 The Go Authors. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above
|
||||
copyright notice, this list of conditions and the following disclaimer
|
||||
in the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
* Neither the name of Google Inc. nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
-25
@@ -1,25 +0,0 @@
|
||||
# Go's `text/template` package with newline elision
|
||||
|
||||
This is a fork of Go 1.4's [text/template](http://golang.org/pkg/text/template/) package with one addition: a backslash immediately after a closing delimiter will delete all subsequent newlines until a non-newline.
|
||||
|
||||
eg.
|
||||
|
||||
```
|
||||
{{if true}}\
|
||||
hello
|
||||
{{end}}\
|
||||
```
|
||||
|
||||
Will result in:
|
||||
|
||||
```
|
||||
hello\n
|
||||
```
|
||||
|
||||
Rather than:
|
||||
|
||||
```
|
||||
\n
|
||||
hello\n
|
||||
\n
|
||||
```
|
||||
-406
@@ -1,406 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
/*
|
||||
Package template implements data-driven templates for generating textual output.
|
||||
|
||||
To generate HTML output, see package html/template, which has the same interface
|
||||
as this package but automatically secures HTML output against certain attacks.
|
||||
|
||||
Templates are executed by applying them to a data structure. Annotations in the
|
||||
template refer to elements of the data structure (typically a field of a struct
|
||||
or a key in a map) to control execution and derive values to be displayed.
|
||||
Execution of the template walks the structure and sets the cursor, represented
|
||||
by a period '.' and called "dot", to the value at the current location in the
|
||||
structure as execution proceeds.
|
||||
|
||||
The input text for a template is UTF-8-encoded text in any format.
|
||||
"Actions"--data evaluations or control structures--are delimited by
|
||||
"{{" and "}}"; all text outside actions is copied to the output unchanged.
|
||||
Actions may not span newlines, although comments can.
|
||||
|
||||
Once parsed, a template may be executed safely in parallel.
|
||||
|
||||
Here is a trivial example that prints "17 items are made of wool".
|
||||
|
||||
type Inventory struct {
|
||||
Material string
|
||||
Count uint
|
||||
}
|
||||
sweaters := Inventory{"wool", 17}
|
||||
tmpl, err := template.New("test").Parse("{{.Count}} items are made of {{.Material}}")
|
||||
if err != nil { panic(err) }
|
||||
err = tmpl.Execute(os.Stdout, sweaters)
|
||||
if err != nil { panic(err) }
|
||||
|
||||
More intricate examples appear below.
|
||||
|
||||
Actions
|
||||
|
||||
Here is the list of actions. "Arguments" and "pipelines" are evaluations of
|
||||
data, defined in detail below.
|
||||
|
||||
*/
|
||||
// {{/* a comment */}}
|
||||
// A comment; discarded. May contain newlines.
|
||||
// Comments do not nest and must start and end at the
|
||||
// delimiters, as shown here.
|
||||
/*
|
||||
|
||||
{{pipeline}}
|
||||
The default textual representation of the value of the pipeline
|
||||
is copied to the output.
|
||||
|
||||
{{if pipeline}} T1 {{end}}
|
||||
If the value of the pipeline is empty, no output is generated;
|
||||
otherwise, T1 is executed. The empty values are false, 0, any
|
||||
nil pointer or interface value, and any array, slice, map, or
|
||||
string of length zero.
|
||||
Dot is unaffected.
|
||||
|
||||
{{if pipeline}} T1 {{else}} T0 {{end}}
|
||||
If the value of the pipeline is empty, T0 is executed;
|
||||
otherwise, T1 is executed. Dot is unaffected.
|
||||
|
||||
{{if pipeline}} T1 {{else if pipeline}} T0 {{end}}
|
||||
To simplify the appearance of if-else chains, the else action
|
||||
of an if may include another if directly; the effect is exactly
|
||||
the same as writing
|
||||
{{if pipeline}} T1 {{else}}{{if pipeline}} T0 {{end}}{{end}}
|
||||
|
||||
{{range pipeline}} T1 {{end}}
|
||||
The value of the pipeline must be an array, slice, map, or channel.
|
||||
If the value of the pipeline has length zero, nothing is output;
|
||||
otherwise, dot is set to the successive elements of the array,
|
||||
slice, or map and T1 is executed. If the value is a map and the
|
||||
keys are of basic type with a defined order ("comparable"), the
|
||||
elements will be visited in sorted key order.
|
||||
|
||||
{{range pipeline}} T1 {{else}} T0 {{end}}
|
||||
The value of the pipeline must be an array, slice, map, or channel.
|
||||
If the value of the pipeline has length zero, dot is unaffected and
|
||||
T0 is executed; otherwise, dot is set to the successive elements
|
||||
of the array, slice, or map and T1 is executed.
|
||||
|
||||
{{template "name"}}
|
||||
The template with the specified name is executed with nil data.
|
||||
|
||||
{{template "name" pipeline}}
|
||||
The template with the specified name is executed with dot set
|
||||
to the value of the pipeline.
|
||||
|
||||
{{with pipeline}} T1 {{end}}
|
||||
If the value of the pipeline is empty, no output is generated;
|
||||
otherwise, dot is set to the value of the pipeline and T1 is
|
||||
executed.
|
||||
|
||||
{{with pipeline}} T1 {{else}} T0 {{end}}
|
||||
If the value of the pipeline is empty, dot is unaffected and T0
|
||||
is executed; otherwise, dot is set to the value of the pipeline
|
||||
and T1 is executed.
|
||||
|
||||
Arguments
|
||||
|
||||
An argument is a simple value, denoted by one of the following.
|
||||
|
||||
- A boolean, string, character, integer, floating-point, imaginary
|
||||
or complex constant in Go syntax. These behave like Go's untyped
|
||||
constants, although raw strings may not span newlines.
|
||||
- The keyword nil, representing an untyped Go nil.
|
||||
- The character '.' (period):
|
||||
.
|
||||
The result is the value of dot.
|
||||
- A variable name, which is a (possibly empty) alphanumeric string
|
||||
preceded by a dollar sign, such as
|
||||
$piOver2
|
||||
or
|
||||
$
|
||||
The result is the value of the variable.
|
||||
Variables are described below.
|
||||
- The name of a field of the data, which must be a struct, preceded
|
||||
by a period, such as
|
||||
.Field
|
||||
The result is the value of the field. Field invocations may be
|
||||
chained:
|
||||
.Field1.Field2
|
||||
Fields can also be evaluated on variables, including chaining:
|
||||
$x.Field1.Field2
|
||||
- The name of a key of the data, which must be a map, preceded
|
||||
by a period, such as
|
||||
.Key
|
||||
The result is the map element value indexed by the key.
|
||||
Key invocations may be chained and combined with fields to any
|
||||
depth:
|
||||
.Field1.Key1.Field2.Key2
|
||||
Although the key must be an alphanumeric identifier, unlike with
|
||||
field names they do not need to start with an upper case letter.
|
||||
Keys can also be evaluated on variables, including chaining:
|
||||
$x.key1.key2
|
||||
- The name of a niladic method of the data, preceded by a period,
|
||||
such as
|
||||
.Method
|
||||
The result is the value of invoking the method with dot as the
|
||||
receiver, dot.Method(). Such a method must have one return value (of
|
||||
any type) or two return values, the second of which is an error.
|
||||
If it has two and the returned error is non-nil, execution terminates
|
||||
and an error is returned to the caller as the value of Execute.
|
||||
Method invocations may be chained and combined with fields and keys
|
||||
to any depth:
|
||||
.Field1.Key1.Method1.Field2.Key2.Method2
|
||||
Methods can also be evaluated on variables, including chaining:
|
||||
$x.Method1.Field
|
||||
- The name of a niladic function, such as
|
||||
fun
|
||||
The result is the value of invoking the function, fun(). The return
|
||||
types and values behave as in methods. Functions and function
|
||||
names are described below.
|
||||
- A parenthesized instance of one the above, for grouping. The result
|
||||
may be accessed by a field or map key invocation.
|
||||
print (.F1 arg1) (.F2 arg2)
|
||||
(.StructValuedMethod "arg").Field
|
||||
|
||||
Arguments may evaluate to any type; if they are pointers the implementation
|
||||
automatically indirects to the base type when required.
|
||||
If an evaluation yields a function value, such as a function-valued
|
||||
field of a struct, the function is not invoked automatically, but it
|
||||
can be used as a truth value for an if action and the like. To invoke
|
||||
it, use the call function, defined below.
|
||||
|
||||
A pipeline is a possibly chained sequence of "commands". A command is a simple
|
||||
value (argument) or a function or method call, possibly with multiple arguments:
|
||||
|
||||
Argument
|
||||
The result is the value of evaluating the argument.
|
||||
.Method [Argument...]
|
||||
The method can be alone or the last element of a chain but,
|
||||
unlike methods in the middle of a chain, it can take arguments.
|
||||
The result is the value of calling the method with the
|
||||
arguments:
|
||||
dot.Method(Argument1, etc.)
|
||||
functionName [Argument...]
|
||||
The result is the value of calling the function associated
|
||||
with the name:
|
||||
function(Argument1, etc.)
|
||||
Functions and function names are described below.
|
||||
|
||||
Pipelines
|
||||
|
||||
A pipeline may be "chained" by separating a sequence of commands with pipeline
|
||||
characters '|'. In a chained pipeline, the result of the each command is
|
||||
passed as the last argument of the following command. The output of the final
|
||||
command in the pipeline is the value of the pipeline.
|
||||
|
||||
The output of a command will be either one value or two values, the second of
|
||||
which has type error. If that second value is present and evaluates to
|
||||
non-nil, execution terminates and the error is returned to the caller of
|
||||
Execute.
|
||||
|
||||
Variables
|
||||
|
||||
A pipeline inside an action may initialize a variable to capture the result.
|
||||
The initialization has syntax
|
||||
|
||||
$variable := pipeline
|
||||
|
||||
where $variable is the name of the variable. An action that declares a
|
||||
variable produces no output.
|
||||
|
||||
If a "range" action initializes a variable, the variable is set to the
|
||||
successive elements of the iteration. Also, a "range" may declare two
|
||||
variables, separated by a comma:
|
||||
|
||||
range $index, $element := pipeline
|
||||
|
||||
in which case $index and $element are set to the successive values of the
|
||||
array/slice index or map key and element, respectively. Note that if there is
|
||||
only one variable, it is assigned the element; this is opposite to the
|
||||
convention in Go range clauses.
|
||||
|
||||
A variable's scope extends to the "end" action of the control structure ("if",
|
||||
"with", or "range") in which it is declared, or to the end of the template if
|
||||
there is no such control structure. A template invocation does not inherit
|
||||
variables from the point of its invocation.
|
||||
|
||||
When execution begins, $ is set to the data argument passed to Execute, that is,
|
||||
to the starting value of dot.
|
||||
|
||||
Examples
|
||||
|
||||
Here are some example one-line templates demonstrating pipelines and variables.
|
||||
All produce the quoted word "output":
|
||||
|
||||
{{"\"output\""}}
|
||||
A string constant.
|
||||
{{`"output"`}}
|
||||
A raw string constant.
|
||||
{{printf "%q" "output"}}
|
||||
A function call.
|
||||
{{"output" | printf "%q"}}
|
||||
A function call whose final argument comes from the previous
|
||||
command.
|
||||
{{printf "%q" (print "out" "put")}}
|
||||
A parenthesized argument.
|
||||
{{"put" | printf "%s%s" "out" | printf "%q"}}
|
||||
A more elaborate call.
|
||||
{{"output" | printf "%s" | printf "%q"}}
|
||||
A longer chain.
|
||||
{{with "output"}}{{printf "%q" .}}{{end}}
|
||||
A with action using dot.
|
||||
{{with $x := "output" | printf "%q"}}{{$x}}{{end}}
|
||||
A with action that creates and uses a variable.
|
||||
{{with $x := "output"}}{{printf "%q" $x}}{{end}}
|
||||
A with action that uses the variable in another action.
|
||||
{{with $x := "output"}}{{$x | printf "%q"}}{{end}}
|
||||
The same, but pipelined.
|
||||
|
||||
Functions
|
||||
|
||||
During execution functions are found in two function maps: first in the
|
||||
template, then in the global function map. By default, no functions are defined
|
||||
in the template but the Funcs method can be used to add them.
|
||||
|
||||
Predefined global functions are named as follows.
|
||||
|
||||
and
|
||||
Returns the boolean AND of its arguments by returning the
|
||||
first empty argument or the last argument, that is,
|
||||
"and x y" behaves as "if x then y else x". All the
|
||||
arguments are evaluated.
|
||||
call
|
||||
Returns the result of calling the first argument, which
|
||||
must be a function, with the remaining arguments as parameters.
|
||||
Thus "call .X.Y 1 2" is, in Go notation, dot.X.Y(1, 2) where
|
||||
Y is a func-valued field, map entry, or the like.
|
||||
The first argument must be the result of an evaluation
|
||||
that yields a value of function type (as distinct from
|
||||
a predefined function such as print). The function must
|
||||
return either one or two result values, the second of which
|
||||
is of type error. If the arguments don't match the function
|
||||
or the returned error value is non-nil, execution stops.
|
||||
html
|
||||
Returns the escaped HTML equivalent of the textual
|
||||
representation of its arguments.
|
||||
index
|
||||
Returns the result of indexing its first argument by the
|
||||
following arguments. Thus "index x 1 2 3" is, in Go syntax,
|
||||
x[1][2][3]. Each indexed item must be a map, slice, or array.
|
||||
js
|
||||
Returns the escaped JavaScript equivalent of the textual
|
||||
representation of its arguments.
|
||||
len
|
||||
Returns the integer length of its argument.
|
||||
not
|
||||
Returns the boolean negation of its single argument.
|
||||
or
|
||||
Returns the boolean OR of its arguments by returning the
|
||||
first non-empty argument or the last argument, that is,
|
||||
"or x y" behaves as "if x then x else y". All the
|
||||
arguments are evaluated.
|
||||
print
|
||||
An alias for fmt.Sprint
|
||||
printf
|
||||
An alias for fmt.Sprintf
|
||||
println
|
||||
An alias for fmt.Sprintln
|
||||
urlquery
|
||||
Returns the escaped value of the textual representation of
|
||||
its arguments in a form suitable for embedding in a URL query.
|
||||
|
||||
The boolean functions take any zero value to be false and a non-zero
|
||||
value to be true.
|
||||
|
||||
There is also a set of binary comparison operators defined as
|
||||
functions:
|
||||
|
||||
eq
|
||||
Returns the boolean truth of arg1 == arg2
|
||||
ne
|
||||
Returns the boolean truth of arg1 != arg2
|
||||
lt
|
||||
Returns the boolean truth of arg1 < arg2
|
||||
le
|
||||
Returns the boolean truth of arg1 <= arg2
|
||||
gt
|
||||
Returns the boolean truth of arg1 > arg2
|
||||
ge
|
||||
Returns the boolean truth of arg1 >= arg2
|
||||
|
||||
For simpler multi-way equality tests, eq (only) accepts two or more
|
||||
arguments and compares the second and subsequent to the first,
|
||||
returning in effect
|
||||
|
||||
arg1==arg2 || arg1==arg3 || arg1==arg4 ...
|
||||
|
||||
(Unlike with || in Go, however, eq is a function call and all the
|
||||
arguments will be evaluated.)
|
||||
|
||||
The comparison functions work on basic types only (or named basic
|
||||
types, such as "type Celsius float32"). They implement the Go rules
|
||||
for comparison of values, except that size and exact type are
|
||||
ignored, so any integer value, signed or unsigned, may be compared
|
||||
with any other integer value. (The arithmetic value is compared,
|
||||
not the bit pattern, so all negative integers are less than all
|
||||
unsigned integers.) However, as usual, one may not compare an int
|
||||
with a float32 and so on.
|
||||
|
||||
Associated templates
|
||||
|
||||
Each template is named by a string specified when it is created. Also, each
|
||||
template is associated with zero or more other templates that it may invoke by
|
||||
name; such associations are transitive and form a name space of templates.
|
||||
|
||||
A template may use a template invocation to instantiate another associated
|
||||
template; see the explanation of the "template" action above. The name must be
|
||||
that of a template associated with the template that contains the invocation.
|
||||
|
||||
Nested template definitions
|
||||
|
||||
When parsing a template, another template may be defined and associated with the
|
||||
template being parsed. Template definitions must appear at the top level of the
|
||||
template, much like global variables in a Go program.
|
||||
|
||||
The syntax of such definitions is to surround each template declaration with a
|
||||
"define" and "end" action.
|
||||
|
||||
The define action names the template being created by providing a string
|
||||
constant. Here is a simple example:
|
||||
|
||||
`{{define "T1"}}ONE{{end}}
|
||||
{{define "T2"}}TWO{{end}}
|
||||
{{define "T3"}}{{template "T1"}} {{template "T2"}}{{end}}
|
||||
{{template "T3"}}`
|
||||
|
||||
This defines two templates, T1 and T2, and a third T3 that invokes the other two
|
||||
when it is executed. Finally it invokes T3. If executed this template will
|
||||
produce the text
|
||||
|
||||
ONE TWO
|
||||
|
||||
By construction, a template may reside in only one association. If it's
|
||||
necessary to have a template addressable from multiple associations, the
|
||||
template definition must be parsed multiple times to create distinct *Template
|
||||
values, or must be copied with the Clone or AddParseTree method.
|
||||
|
||||
Parse may be called multiple times to assemble the various associated templates;
|
||||
see the ParseFiles and ParseGlob functions and methods for simple ways to parse
|
||||
related templates stored in files.
|
||||
|
||||
A template may be executed directly or through ExecuteTemplate, which executes
|
||||
an associated template identified by name. To invoke our example above, we
|
||||
might write,
|
||||
|
||||
err := tmpl.Execute(os.Stdout, "no data needed")
|
||||
if err != nil {
|
||||
log.Fatalf("execution failed: %s", err)
|
||||
}
|
||||
|
||||
or to invoke a particular template explicitly by name,
|
||||
|
||||
err := tmpl.ExecuteTemplate(os.Stdout, "T2", "no data needed")
|
||||
if err != nil {
|
||||
log.Fatalf("execution failed: %s", err)
|
||||
}
|
||||
|
||||
*/
|
||||
package template
|
||||
-72
@@ -1,72 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package template_test
|
||||
|
||||
import (
|
||||
"log"
|
||||
"os"
|
||||
|
||||
"github.com/alecthomas/template"
|
||||
)
|
||||
|
||||
func ExampleTemplate() {
|
||||
// Define a template.
|
||||
const letter = `
|
||||
Dear {{.Name}},
|
||||
{{if .Attended}}
|
||||
It was a pleasure to see you at the wedding.{{else}}
|
||||
It is a shame you couldn't make it to the wedding.{{end}}
|
||||
{{with .Gift}}Thank you for the lovely {{.}}.
|
||||
{{end}}
|
||||
Best wishes,
|
||||
Josie
|
||||
`
|
||||
|
||||
// Prepare some data to insert into the template.
|
||||
type Recipient struct {
|
||||
Name, Gift string
|
||||
Attended bool
|
||||
}
|
||||
var recipients = []Recipient{
|
||||
{"Aunt Mildred", "bone china tea set", true},
|
||||
{"Uncle John", "moleskin pants", false},
|
||||
{"Cousin Rodney", "", false},
|
||||
}
|
||||
|
||||
// Create a new template and parse the letter into it.
|
||||
t := template.Must(template.New("letter").Parse(letter))
|
||||
|
||||
// Execute the template for each recipient.
|
||||
for _, r := range recipients {
|
||||
err := t.Execute(os.Stdout, r)
|
||||
if err != nil {
|
||||
log.Println("executing template:", err)
|
||||
}
|
||||
}
|
||||
|
||||
// Output:
|
||||
// Dear Aunt Mildred,
|
||||
//
|
||||
// It was a pleasure to see you at the wedding.
|
||||
// Thank you for the lovely bone china tea set.
|
||||
//
|
||||
// Best wishes,
|
||||
// Josie
|
||||
//
|
||||
// Dear Uncle John,
|
||||
//
|
||||
// It is a shame you couldn't make it to the wedding.
|
||||
// Thank you for the lovely moleskin pants.
|
||||
//
|
||||
// Best wishes,
|
||||
// Josie
|
||||
//
|
||||
// Dear Cousin Rodney,
|
||||
//
|
||||
// It is a shame you couldn't make it to the wedding.
|
||||
//
|
||||
// Best wishes,
|
||||
// Josie
|
||||
}
|
||||
-183
@@ -1,183 +0,0 @@
|
||||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package template_test
|
||||
|
||||
import (
|
||||
"io"
|
||||
"io/ioutil"
|
||||
"log"
|
||||
"os"
|
||||
"path/filepath"
|
||||
|
||||
"github.com/alecthomas/template"
|
||||
)
|
||||
|
||||
// templateFile defines the contents of a template to be stored in a file, for testing.
|
||||
type templateFile struct {
|
||||
name string
|
||||
contents string
|
||||
}
|
||||
|
||||
func createTestDir(files []templateFile) string {
|
||||
dir, err := ioutil.TempDir("", "template")
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
for _, file := range files {
|
||||
f, err := os.Create(filepath.Join(dir, file.name))
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
defer f.Close()
|
||||
_, err = io.WriteString(f, file.contents)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
}
|
||||
return dir
|
||||
}
|
||||
|
||||
// Here we demonstrate loading a set of templates from a directory.
|
||||
func ExampleTemplate_glob() {
|
||||
// Here we create a temporary directory and populate it with our sample
|
||||
// template definition files; usually the template files would already
|
||||
// exist in some location known to the program.
|
||||
dir := createTestDir([]templateFile{
|
||||
// T0.tmpl is a plain template file that just invokes T1.
|
||||
{"T0.tmpl", `T0 invokes T1: ({{template "T1"}})`},
|
||||
// T1.tmpl defines a template, T1 that invokes T2.
|
||||
{"T1.tmpl", `{{define "T1"}}T1 invokes T2: ({{template "T2"}}){{end}}`},
|
||||
// T2.tmpl defines a template T2.
|
||||
{"T2.tmpl", `{{define "T2"}}This is T2{{end}}`},
|
||||
})
|
||||
// Clean up after the test; another quirk of running as an example.
|
||||
defer os.RemoveAll(dir)
|
||||
|
||||
// pattern is the glob pattern used to find all the template files.
|
||||
pattern := filepath.Join(dir, "*.tmpl")
|
||||
|
||||
// Here starts the example proper.
|
||||
// T0.tmpl is the first name matched, so it becomes the starting template,
|
||||
// the value returned by ParseGlob.
|
||||
tmpl := template.Must(template.ParseGlob(pattern))
|
||||
|
||||
err := tmpl.Execute(os.Stdout, nil)
|
||||
if err != nil {
|
||||
log.Fatalf("template execution: %s", err)
|
||||
}
|
||||
// Output:
|
||||
// T0 invokes T1: (T1 invokes T2: (This is T2))
|
||||
}
|
||||
|
||||
// This example demonstrates one way to share some templates
|
||||
// and use them in different contexts. In this variant we add multiple driver
|
||||
// templates by hand to an existing bundle of templates.
|
||||
func ExampleTemplate_helpers() {
|
||||
// Here we create a temporary directory and populate it with our sample
|
||||
// template definition files; usually the template files would already
|
||||
// exist in some location known to the program.
|
||||
dir := createTestDir([]templateFile{
|
||||
// T1.tmpl defines a template, T1 that invokes T2.
|
||||
{"T1.tmpl", `{{define "T1"}}T1 invokes T2: ({{template "T2"}}){{end}}`},
|
||||
// T2.tmpl defines a template T2.
|
||||
{"T2.tmpl", `{{define "T2"}}This is T2{{end}}`},
|
||||
})
|
||||
// Clean up after the test; another quirk of running as an example.
|
||||
defer os.RemoveAll(dir)
|
||||
|
||||
// pattern is the glob pattern used to find all the template files.
|
||||
pattern := filepath.Join(dir, "*.tmpl")
|
||||
|
||||
// Here starts the example proper.
|
||||
// Load the helpers.
|
||||
templates := template.Must(template.ParseGlob(pattern))
|
||||
// Add one driver template to the bunch; we do this with an explicit template definition.
|
||||
_, err := templates.Parse("{{define `driver1`}}Driver 1 calls T1: ({{template `T1`}})\n{{end}}")
|
||||
if err != nil {
|
||||
log.Fatal("parsing driver1: ", err)
|
||||
}
|
||||
// Add another driver template.
|
||||
_, err = templates.Parse("{{define `driver2`}}Driver 2 calls T2: ({{template `T2`}})\n{{end}}")
|
||||
if err != nil {
|
||||
log.Fatal("parsing driver2: ", err)
|
||||
}
|
||||
// We load all the templates before execution. This package does not require
|
||||
// that behavior but html/template's escaping does, so it's a good habit.
|
||||
err = templates.ExecuteTemplate(os.Stdout, "driver1", nil)
|
||||
if err != nil {
|
||||
log.Fatalf("driver1 execution: %s", err)
|
||||
}
|
||||
err = templates.ExecuteTemplate(os.Stdout, "driver2", nil)
|
||||
if err != nil {
|
||||
log.Fatalf("driver2 execution: %s", err)
|
||||
}
|
||||
// Output:
|
||||
// Driver 1 calls T1: (T1 invokes T2: (This is T2))
|
||||
// Driver 2 calls T2: (This is T2)
|
||||
}
|
||||
|
||||
// This example demonstrates how to use one group of driver
|
||||
// templates with distinct sets of helper templates.
|
||||
func ExampleTemplate_share() {
|
||||
// Here we create a temporary directory and populate it with our sample
|
||||
// template definition files; usually the template files would already
|
||||
// exist in some location known to the program.
|
||||
dir := createTestDir([]templateFile{
|
||||
// T0.tmpl is a plain template file that just invokes T1.
|
||||
{"T0.tmpl", "T0 ({{.}} version) invokes T1: ({{template `T1`}})\n"},
|
||||
// T1.tmpl defines a template, T1 that invokes T2. Note T2 is not defined
|
||||
{"T1.tmpl", `{{define "T1"}}T1 invokes T2: ({{template "T2"}}){{end}}`},
|
||||
})
|
||||
// Clean up after the test; another quirk of running as an example.
|
||||
defer os.RemoveAll(dir)
|
||||
|
||||
// pattern is the glob pattern used to find all the template files.
|
||||
pattern := filepath.Join(dir, "*.tmpl")
|
||||
|
||||
// Here starts the example proper.
|
||||
// Load the drivers.
|
||||
drivers := template.Must(template.ParseGlob(pattern))
|
||||
|
||||
// We must define an implementation of the T2 template. First we clone
|
||||
// the drivers, then add a definition of T2 to the template name space.
|
||||
|
||||
// 1. Clone the helper set to create a new name space from which to run them.
|
||||
first, err := drivers.Clone()
|
||||
if err != nil {
|
||||
log.Fatal("cloning helpers: ", err)
|
||||
}
|
||||
// 2. Define T2, version A, and parse it.
|
||||
_, err = first.Parse("{{define `T2`}}T2, version A{{end}}")
|
||||
if err != nil {
|
||||
log.Fatal("parsing T2: ", err)
|
||||
}
|
||||
|
||||
// Now repeat the whole thing, using a different version of T2.
|
||||
// 1. Clone the drivers.
|
||||
second, err := drivers.Clone()
|
||||
if err != nil {
|
||||
log.Fatal("cloning drivers: ", err)
|
||||
}
|
||||
// 2. Define T2, version B, and parse it.
|
||||
_, err = second.Parse("{{define `T2`}}T2, version B{{end}}")
|
||||
if err != nil {
|
||||
log.Fatal("parsing T2: ", err)
|
||||
}
|
||||
|
||||
// Execute the templates in the reverse order to verify the
|
||||
// first is unaffected by the second.
|
||||
err = second.ExecuteTemplate(os.Stdout, "T0.tmpl", "second")
|
||||
if err != nil {
|
||||
log.Fatalf("second execution: %s", err)
|
||||
}
|
||||
err = first.ExecuteTemplate(os.Stdout, "T0.tmpl", "first")
|
||||
if err != nil {
|
||||
log.Fatalf("first: execution: %s", err)
|
||||
}
|
||||
|
||||
// Output:
|
||||
// T0 (second version) invokes T1: (T1 invokes T2: (T2, version B))
|
||||
// T0 (first version) invokes T1: (T1 invokes T2: (T2, version A))
|
||||
}
|
||||
-55
@@ -1,55 +0,0 @@
|
||||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package template_test
|
||||
|
||||
import (
|
||||
"log"
|
||||
"os"
|
||||
"strings"
|
||||
|
||||
"github.com/alecthomas/template"
|
||||
)
|
||||
|
||||
// This example demonstrates a custom function to process template text.
|
||||
// It installs the strings.Title function and uses it to
|
||||
// Make Title Text Look Good In Our Template's Output.
|
||||
func ExampleTemplate_func() {
|
||||
// First we create a FuncMap with which to register the function.
|
||||
funcMap := template.FuncMap{
|
||||
// The name "title" is what the function will be called in the template text.
|
||||
"title": strings.Title,
|
||||
}
|
||||
|
||||
// A simple template definition to test our function.
|
||||
// We print the input text several ways:
|
||||
// - the original
|
||||
// - title-cased
|
||||
// - title-cased and then printed with %q
|
||||
// - printed with %q and then title-cased.
|
||||
const templateText = `
|
||||
Input: {{printf "%q" .}}
|
||||
Output 0: {{title .}}
|
||||
Output 1: {{title . | printf "%q"}}
|
||||
Output 2: {{printf "%q" . | title}}
|
||||
`
|
||||
|
||||
// Create a template, add the function map, and parse the text.
|
||||
tmpl, err := template.New("titleTest").Funcs(funcMap).Parse(templateText)
|
||||
if err != nil {
|
||||
log.Fatalf("parsing: %s", err)
|
||||
}
|
||||
|
||||
// Run the template to verify the output.
|
||||
err = tmpl.Execute(os.Stdout, "the go programming language")
|
||||
if err != nil {
|
||||
log.Fatalf("execution: %s", err)
|
||||
}
|
||||
|
||||
// Output:
|
||||
// Input: "the go programming language"
|
||||
// Output 0: The Go Programming Language
|
||||
// Output 1: "The Go Programming Language"
|
||||
// Output 2: "The Go Programming Language"
|
||||
}
|
||||
-845
@@ -1,845 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package template
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"io"
|
||||
"reflect"
|
||||
"runtime"
|
||||
"sort"
|
||||
"strings"
|
||||
|
||||
"github.com/alecthomas/template/parse"
|
||||
)
|
||||
|
||||
// state represents the state of an execution. It's not part of the
|
||||
// template so that multiple executions of the same template
|
||||
// can execute in parallel.
|
||||
type state struct {
|
||||
tmpl *Template
|
||||
wr io.Writer
|
||||
node parse.Node // current node, for errors
|
||||
vars []variable // push-down stack of variable values.
|
||||
}
|
||||
|
||||
// variable holds the dynamic value of a variable such as $, $x etc.
|
||||
type variable struct {
|
||||
name string
|
||||
value reflect.Value
|
||||
}
|
||||
|
||||
// push pushes a new variable on the stack.
|
||||
func (s *state) push(name string, value reflect.Value) {
|
||||
s.vars = append(s.vars, variable{name, value})
|
||||
}
|
||||
|
||||
// mark returns the length of the variable stack.
|
||||
func (s *state) mark() int {
|
||||
return len(s.vars)
|
||||
}
|
||||
|
||||
// pop pops the variable stack up to the mark.
|
||||
func (s *state) pop(mark int) {
|
||||
s.vars = s.vars[0:mark]
|
||||
}
|
||||
|
||||
// setVar overwrites the top-nth variable on the stack. Used by range iterations.
|
||||
func (s *state) setVar(n int, value reflect.Value) {
|
||||
s.vars[len(s.vars)-n].value = value
|
||||
}
|
||||
|
||||
// varValue returns the value of the named variable.
|
||||
func (s *state) varValue(name string) reflect.Value {
|
||||
for i := s.mark() - 1; i >= 0; i-- {
|
||||
if s.vars[i].name == name {
|
||||
return s.vars[i].value
|
||||
}
|
||||
}
|
||||
s.errorf("undefined variable: %s", name)
|
||||
return zero
|
||||
}
|
||||
|
||||
var zero reflect.Value
|
||||
|
||||
// at marks the state to be on node n, for error reporting.
|
||||
func (s *state) at(node parse.Node) {
|
||||
s.node = node
|
||||
}
|
||||
|
||||
// doublePercent returns the string with %'s replaced by %%, if necessary,
|
||||
// so it can be used safely inside a Printf format string.
|
||||
func doublePercent(str string) string {
|
||||
if strings.Contains(str, "%") {
|
||||
str = strings.Replace(str, "%", "%%", -1)
|
||||
}
|
||||
return str
|
||||
}
|
||||
|
||||
// errorf formats the error and terminates processing.
|
||||
func (s *state) errorf(format string, args ...interface{}) {
|
||||
name := doublePercent(s.tmpl.Name())
|
||||
if s.node == nil {
|
||||
format = fmt.Sprintf("template: %s: %s", name, format)
|
||||
} else {
|
||||
location, context := s.tmpl.ErrorContext(s.node)
|
||||
format = fmt.Sprintf("template: %s: executing %q at <%s>: %s", location, name, doublePercent(context), format)
|
||||
}
|
||||
panic(fmt.Errorf(format, args...))
|
||||
}
|
||||
|
||||
// errRecover is the handler that turns panics into returns from the top
|
||||
// level of Parse.
|
||||
func errRecover(errp *error) {
|
||||
e := recover()
|
||||
if e != nil {
|
||||
switch err := e.(type) {
|
||||
case runtime.Error:
|
||||
panic(e)
|
||||
case error:
|
||||
*errp = err
|
||||
default:
|
||||
panic(e)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// ExecuteTemplate applies the template associated with t that has the given name
|
||||
// to the specified data object and writes the output to wr.
|
||||
// If an error occurs executing the template or writing its output,
|
||||
// execution stops, but partial results may already have been written to
|
||||
// the output writer.
|
||||
// A template may be executed safely in parallel.
|
||||
func (t *Template) ExecuteTemplate(wr io.Writer, name string, data interface{}) error {
|
||||
tmpl := t.tmpl[name]
|
||||
if tmpl == nil {
|
||||
return fmt.Errorf("template: no template %q associated with template %q", name, t.name)
|
||||
}
|
||||
return tmpl.Execute(wr, data)
|
||||
}
|
||||
|
||||
// Execute applies a parsed template to the specified data object,
|
||||
// and writes the output to wr.
|
||||
// If an error occurs executing the template or writing its output,
|
||||
// execution stops, but partial results may already have been written to
|
||||
// the output writer.
|
||||
// A template may be executed safely in parallel.
|
||||
func (t *Template) Execute(wr io.Writer, data interface{}) (err error) {
|
||||
defer errRecover(&err)
|
||||
value := reflect.ValueOf(data)
|
||||
state := &state{
|
||||
tmpl: t,
|
||||
wr: wr,
|
||||
vars: []variable{{"$", value}},
|
||||
}
|
||||
t.init()
|
||||
if t.Tree == nil || t.Root == nil {
|
||||
var b bytes.Buffer
|
||||
for name, tmpl := range t.tmpl {
|
||||
if tmpl.Tree == nil || tmpl.Root == nil {
|
||||
continue
|
||||
}
|
||||
if b.Len() > 0 {
|
||||
b.WriteString(", ")
|
||||
}
|
||||
fmt.Fprintf(&b, "%q", name)
|
||||
}
|
||||
var s string
|
||||
if b.Len() > 0 {
|
||||
s = "; defined templates are: " + b.String()
|
||||
}
|
||||
state.errorf("%q is an incomplete or empty template%s", t.Name(), s)
|
||||
}
|
||||
state.walk(value, t.Root)
|
||||
return
|
||||
}
|
||||
|
||||
// Walk functions step through the major pieces of the template structure,
|
||||
// generating output as they go.
|
||||
func (s *state) walk(dot reflect.Value, node parse.Node) {
|
||||
s.at(node)
|
||||
switch node := node.(type) {
|
||||
case *parse.ActionNode:
|
||||
// Do not pop variables so they persist until next end.
|
||||
// Also, if the action declares variables, don't print the result.
|
||||
val := s.evalPipeline(dot, node.Pipe)
|
||||
if len(node.Pipe.Decl) == 0 {
|
||||
s.printValue(node, val)
|
||||
}
|
||||
case *parse.IfNode:
|
||||
s.walkIfOrWith(parse.NodeIf, dot, node.Pipe, node.List, node.ElseList)
|
||||
case *parse.ListNode:
|
||||
for _, node := range node.Nodes {
|
||||
s.walk(dot, node)
|
||||
}
|
||||
case *parse.RangeNode:
|
||||
s.walkRange(dot, node)
|
||||
case *parse.TemplateNode:
|
||||
s.walkTemplate(dot, node)
|
||||
case *parse.TextNode:
|
||||
if _, err := s.wr.Write(node.Text); err != nil {
|
||||
s.errorf("%s", err)
|
||||
}
|
||||
case *parse.WithNode:
|
||||
s.walkIfOrWith(parse.NodeWith, dot, node.Pipe, node.List, node.ElseList)
|
||||
default:
|
||||
s.errorf("unknown node: %s", node)
|
||||
}
|
||||
}
|
||||
|
||||
// walkIfOrWith walks an 'if' or 'with' node. The two control structures
|
||||
// are identical in behavior except that 'with' sets dot.
|
||||
func (s *state) walkIfOrWith(typ parse.NodeType, dot reflect.Value, pipe *parse.PipeNode, list, elseList *parse.ListNode) {
|
||||
defer s.pop(s.mark())
|
||||
val := s.evalPipeline(dot, pipe)
|
||||
truth, ok := isTrue(val)
|
||||
if !ok {
|
||||
s.errorf("if/with can't use %v", val)
|
||||
}
|
||||
if truth {
|
||||
if typ == parse.NodeWith {
|
||||
s.walk(val, list)
|
||||
} else {
|
||||
s.walk(dot, list)
|
||||
}
|
||||
} else if elseList != nil {
|
||||
s.walk(dot, elseList)
|
||||
}
|
||||
}
|
||||
|
||||
// isTrue reports whether the value is 'true', in the sense of not the zero of its type,
|
||||
// and whether the value has a meaningful truth value.
|
||||
func isTrue(val reflect.Value) (truth, ok bool) {
|
||||
if !val.IsValid() {
|
||||
// Something like var x interface{}, never set. It's a form of nil.
|
||||
return false, true
|
||||
}
|
||||
switch val.Kind() {
|
||||
case reflect.Array, reflect.Map, reflect.Slice, reflect.String:
|
||||
truth = val.Len() > 0
|
||||
case reflect.Bool:
|
||||
truth = val.Bool()
|
||||
case reflect.Complex64, reflect.Complex128:
|
||||
truth = val.Complex() != 0
|
||||
case reflect.Chan, reflect.Func, reflect.Ptr, reflect.Interface:
|
||||
truth = !val.IsNil()
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
truth = val.Int() != 0
|
||||
case reflect.Float32, reflect.Float64:
|
||||
truth = val.Float() != 0
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
truth = val.Uint() != 0
|
||||
case reflect.Struct:
|
||||
truth = true // Struct values are always true.
|
||||
default:
|
||||
return
|
||||
}
|
||||
return truth, true
|
||||
}
|
||||
|
||||
func (s *state) walkRange(dot reflect.Value, r *parse.RangeNode) {
|
||||
s.at(r)
|
||||
defer s.pop(s.mark())
|
||||
val, _ := indirect(s.evalPipeline(dot, r.Pipe))
|
||||
// mark top of stack before any variables in the body are pushed.
|
||||
mark := s.mark()
|
||||
oneIteration := func(index, elem reflect.Value) {
|
||||
// Set top var (lexically the second if there are two) to the element.
|
||||
if len(r.Pipe.Decl) > 0 {
|
||||
s.setVar(1, elem)
|
||||
}
|
||||
// Set next var (lexically the first if there are two) to the index.
|
||||
if len(r.Pipe.Decl) > 1 {
|
||||
s.setVar(2, index)
|
||||
}
|
||||
s.walk(elem, r.List)
|
||||
s.pop(mark)
|
||||
}
|
||||
switch val.Kind() {
|
||||
case reflect.Array, reflect.Slice:
|
||||
if val.Len() == 0 {
|
||||
break
|
||||
}
|
||||
for i := 0; i < val.Len(); i++ {
|
||||
oneIteration(reflect.ValueOf(i), val.Index(i))
|
||||
}
|
||||
return
|
||||
case reflect.Map:
|
||||
if val.Len() == 0 {
|
||||
break
|
||||
}
|
||||
for _, key := range sortKeys(val.MapKeys()) {
|
||||
oneIteration(key, val.MapIndex(key))
|
||||
}
|
||||
return
|
||||
case reflect.Chan:
|
||||
if val.IsNil() {
|
||||
break
|
||||
}
|
||||
i := 0
|
||||
for ; ; i++ {
|
||||
elem, ok := val.Recv()
|
||||
if !ok {
|
||||
break
|
||||
}
|
||||
oneIteration(reflect.ValueOf(i), elem)
|
||||
}
|
||||
if i == 0 {
|
||||
break
|
||||
}
|
||||
return
|
||||
case reflect.Invalid:
|
||||
break // An invalid value is likely a nil map, etc. and acts like an empty map.
|
||||
default:
|
||||
s.errorf("range can't iterate over %v", val)
|
||||
}
|
||||
if r.ElseList != nil {
|
||||
s.walk(dot, r.ElseList)
|
||||
}
|
||||
}
|
||||
|
||||
func (s *state) walkTemplate(dot reflect.Value, t *parse.TemplateNode) {
|
||||
s.at(t)
|
||||
tmpl := s.tmpl.tmpl[t.Name]
|
||||
if tmpl == nil {
|
||||
s.errorf("template %q not defined", t.Name)
|
||||
}
|
||||
// Variables declared by the pipeline persist.
|
||||
dot = s.evalPipeline(dot, t.Pipe)
|
||||
newState := *s
|
||||
newState.tmpl = tmpl
|
||||
// No dynamic scoping: template invocations inherit no variables.
|
||||
newState.vars = []variable{{"$", dot}}
|
||||
newState.walk(dot, tmpl.Root)
|
||||
}
|
||||
|
||||
// Eval functions evaluate pipelines, commands, and their elements and extract
|
||||
// values from the data structure by examining fields, calling methods, and so on.
|
||||
// The printing of those values happens only through walk functions.
|
||||
|
||||
// evalPipeline returns the value acquired by evaluating a pipeline. If the
|
||||
// pipeline has a variable declaration, the variable will be pushed on the
|
||||
// stack. Callers should therefore pop the stack after they are finished
|
||||
// executing commands depending on the pipeline value.
|
||||
func (s *state) evalPipeline(dot reflect.Value, pipe *parse.PipeNode) (value reflect.Value) {
|
||||
if pipe == nil {
|
||||
return
|
||||
}
|
||||
s.at(pipe)
|
||||
for _, cmd := range pipe.Cmds {
|
||||
value = s.evalCommand(dot, cmd, value) // previous value is this one's final arg.
|
||||
// If the object has type interface{}, dig down one level to the thing inside.
|
||||
if value.Kind() == reflect.Interface && value.Type().NumMethod() == 0 {
|
||||
value = reflect.ValueOf(value.Interface()) // lovely!
|
||||
}
|
||||
}
|
||||
for _, variable := range pipe.Decl {
|
||||
s.push(variable.Ident[0], value)
|
||||
}
|
||||
return value
|
||||
}
|
||||
|
||||
func (s *state) notAFunction(args []parse.Node, final reflect.Value) {
|
||||
if len(args) > 1 || final.IsValid() {
|
||||
s.errorf("can't give argument to non-function %s", args[0])
|
||||
}
|
||||
}
|
||||
|
||||
func (s *state) evalCommand(dot reflect.Value, cmd *parse.CommandNode, final reflect.Value) reflect.Value {
|
||||
firstWord := cmd.Args[0]
|
||||
switch n := firstWord.(type) {
|
||||
case *parse.FieldNode:
|
||||
return s.evalFieldNode(dot, n, cmd.Args, final)
|
||||
case *parse.ChainNode:
|
||||
return s.evalChainNode(dot, n, cmd.Args, final)
|
||||
case *parse.IdentifierNode:
|
||||
// Must be a function.
|
||||
return s.evalFunction(dot, n, cmd, cmd.Args, final)
|
||||
case *parse.PipeNode:
|
||||
// Parenthesized pipeline. The arguments are all inside the pipeline; final is ignored.
|
||||
return s.evalPipeline(dot, n)
|
||||
case *parse.VariableNode:
|
||||
return s.evalVariableNode(dot, n, cmd.Args, final)
|
||||
}
|
||||
s.at(firstWord)
|
||||
s.notAFunction(cmd.Args, final)
|
||||
switch word := firstWord.(type) {
|
||||
case *parse.BoolNode:
|
||||
return reflect.ValueOf(word.True)
|
||||
case *parse.DotNode:
|
||||
return dot
|
||||
case *parse.NilNode:
|
||||
s.errorf("nil is not a command")
|
||||
case *parse.NumberNode:
|
||||
return s.idealConstant(word)
|
||||
case *parse.StringNode:
|
||||
return reflect.ValueOf(word.Text)
|
||||
}
|
||||
s.errorf("can't evaluate command %q", firstWord)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
// idealConstant is called to return the value of a number in a context where
|
||||
// we don't know the type. In that case, the syntax of the number tells us
|
||||
// its type, and we use Go rules to resolve. Note there is no such thing as
|
||||
// a uint ideal constant in this situation - the value must be of int type.
|
||||
func (s *state) idealConstant(constant *parse.NumberNode) reflect.Value {
|
||||
// These are ideal constants but we don't know the type
|
||||
// and we have no context. (If it was a method argument,
|
||||
// we'd know what we need.) The syntax guides us to some extent.
|
||||
s.at(constant)
|
||||
switch {
|
||||
case constant.IsComplex:
|
||||
return reflect.ValueOf(constant.Complex128) // incontrovertible.
|
||||
case constant.IsFloat && !isHexConstant(constant.Text) && strings.IndexAny(constant.Text, ".eE") >= 0:
|
||||
return reflect.ValueOf(constant.Float64)
|
||||
case constant.IsInt:
|
||||
n := int(constant.Int64)
|
||||
if int64(n) != constant.Int64 {
|
||||
s.errorf("%s overflows int", constant.Text)
|
||||
}
|
||||
return reflect.ValueOf(n)
|
||||
case constant.IsUint:
|
||||
s.errorf("%s overflows int", constant.Text)
|
||||
}
|
||||
return zero
|
||||
}
|
||||
|
||||
func isHexConstant(s string) bool {
|
||||
return len(s) > 2 && s[0] == '0' && (s[1] == 'x' || s[1] == 'X')
|
||||
}
|
||||
|
||||
func (s *state) evalFieldNode(dot reflect.Value, field *parse.FieldNode, args []parse.Node, final reflect.Value) reflect.Value {
|
||||
s.at(field)
|
||||
return s.evalFieldChain(dot, dot, field, field.Ident, args, final)
|
||||
}
|
||||
|
||||
func (s *state) evalChainNode(dot reflect.Value, chain *parse.ChainNode, args []parse.Node, final reflect.Value) reflect.Value {
|
||||
s.at(chain)
|
||||
// (pipe).Field1.Field2 has pipe as .Node, fields as .Field. Eval the pipeline, then the fields.
|
||||
pipe := s.evalArg(dot, nil, chain.Node)
|
||||
if len(chain.Field) == 0 {
|
||||
s.errorf("internal error: no fields in evalChainNode")
|
||||
}
|
||||
return s.evalFieldChain(dot, pipe, chain, chain.Field, args, final)
|
||||
}
|
||||
|
||||
func (s *state) evalVariableNode(dot reflect.Value, variable *parse.VariableNode, args []parse.Node, final reflect.Value) reflect.Value {
|
||||
// $x.Field has $x as the first ident, Field as the second. Eval the var, then the fields.
|
||||
s.at(variable)
|
||||
value := s.varValue(variable.Ident[0])
|
||||
if len(variable.Ident) == 1 {
|
||||
s.notAFunction(args, final)
|
||||
return value
|
||||
}
|
||||
return s.evalFieldChain(dot, value, variable, variable.Ident[1:], args, final)
|
||||
}
|
||||
|
||||
// evalFieldChain evaluates .X.Y.Z possibly followed by arguments.
|
||||
// dot is the environment in which to evaluate arguments, while
|
||||
// receiver is the value being walked along the chain.
|
||||
func (s *state) evalFieldChain(dot, receiver reflect.Value, node parse.Node, ident []string, args []parse.Node, final reflect.Value) reflect.Value {
|
||||
n := len(ident)
|
||||
for i := 0; i < n-1; i++ {
|
||||
receiver = s.evalField(dot, ident[i], node, nil, zero, receiver)
|
||||
}
|
||||
// Now if it's a method, it gets the arguments.
|
||||
return s.evalField(dot, ident[n-1], node, args, final, receiver)
|
||||
}
|
||||
|
||||
func (s *state) evalFunction(dot reflect.Value, node *parse.IdentifierNode, cmd parse.Node, args []parse.Node, final reflect.Value) reflect.Value {
|
||||
s.at(node)
|
||||
name := node.Ident
|
||||
function, ok := findFunction(name, s.tmpl)
|
||||
if !ok {
|
||||
s.errorf("%q is not a defined function", name)
|
||||
}
|
||||
return s.evalCall(dot, function, cmd, name, args, final)
|
||||
}
|
||||
|
||||
// evalField evaluates an expression like (.Field) or (.Field arg1 arg2).
|
||||
// The 'final' argument represents the return value from the preceding
|
||||
// value of the pipeline, if any.
|
||||
func (s *state) evalField(dot reflect.Value, fieldName string, node parse.Node, args []parse.Node, final, receiver reflect.Value) reflect.Value {
|
||||
if !receiver.IsValid() {
|
||||
return zero
|
||||
}
|
||||
typ := receiver.Type()
|
||||
receiver, _ = indirect(receiver)
|
||||
// Unless it's an interface, need to get to a value of type *T to guarantee
|
||||
// we see all methods of T and *T.
|
||||
ptr := receiver
|
||||
if ptr.Kind() != reflect.Interface && ptr.CanAddr() {
|
||||
ptr = ptr.Addr()
|
||||
}
|
||||
if method := ptr.MethodByName(fieldName); method.IsValid() {
|
||||
return s.evalCall(dot, method, node, fieldName, args, final)
|
||||
}
|
||||
hasArgs := len(args) > 1 || final.IsValid()
|
||||
// It's not a method; must be a field of a struct or an element of a map. The receiver must not be nil.
|
||||
receiver, isNil := indirect(receiver)
|
||||
if isNil {
|
||||
s.errorf("nil pointer evaluating %s.%s", typ, fieldName)
|
||||
}
|
||||
switch receiver.Kind() {
|
||||
case reflect.Struct:
|
||||
tField, ok := receiver.Type().FieldByName(fieldName)
|
||||
if ok {
|
||||
field := receiver.FieldByIndex(tField.Index)
|
||||
if tField.PkgPath != "" { // field is unexported
|
||||
s.errorf("%s is an unexported field of struct type %s", fieldName, typ)
|
||||
}
|
||||
// If it's a function, we must call it.
|
||||
if hasArgs {
|
||||
s.errorf("%s has arguments but cannot be invoked as function", fieldName)
|
||||
}
|
||||
return field
|
||||
}
|
||||
s.errorf("%s is not a field of struct type %s", fieldName, typ)
|
||||
case reflect.Map:
|
||||
// If it's a map, attempt to use the field name as a key.
|
||||
nameVal := reflect.ValueOf(fieldName)
|
||||
if nameVal.Type().AssignableTo(receiver.Type().Key()) {
|
||||
if hasArgs {
|
||||
s.errorf("%s is not a method but has arguments", fieldName)
|
||||
}
|
||||
return receiver.MapIndex(nameVal)
|
||||
}
|
||||
}
|
||||
s.errorf("can't evaluate field %s in type %s", fieldName, typ)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
var (
|
||||
errorType = reflect.TypeOf((*error)(nil)).Elem()
|
||||
fmtStringerType = reflect.TypeOf((*fmt.Stringer)(nil)).Elem()
|
||||
)
|
||||
|
||||
// evalCall executes a function or method call. If it's a method, fun already has the receiver bound, so
|
||||
// it looks just like a function call. The arg list, if non-nil, includes (in the manner of the shell), arg[0]
|
||||
// as the function itself.
|
||||
func (s *state) evalCall(dot, fun reflect.Value, node parse.Node, name string, args []parse.Node, final reflect.Value) reflect.Value {
|
||||
if args != nil {
|
||||
args = args[1:] // Zeroth arg is function name/node; not passed to function.
|
||||
}
|
||||
typ := fun.Type()
|
||||
numIn := len(args)
|
||||
if final.IsValid() {
|
||||
numIn++
|
||||
}
|
||||
numFixed := len(args)
|
||||
if typ.IsVariadic() {
|
||||
numFixed = typ.NumIn() - 1 // last arg is the variadic one.
|
||||
if numIn < numFixed {
|
||||
s.errorf("wrong number of args for %s: want at least %d got %d", name, typ.NumIn()-1, len(args))
|
||||
}
|
||||
} else if numIn < typ.NumIn()-1 || !typ.IsVariadic() && numIn != typ.NumIn() {
|
||||
s.errorf("wrong number of args for %s: want %d got %d", name, typ.NumIn(), len(args))
|
||||
}
|
||||
if !goodFunc(typ) {
|
||||
// TODO: This could still be a confusing error; maybe goodFunc should provide info.
|
||||
s.errorf("can't call method/function %q with %d results", name, typ.NumOut())
|
||||
}
|
||||
// Build the arg list.
|
||||
argv := make([]reflect.Value, numIn)
|
||||
// Args must be evaluated. Fixed args first.
|
||||
i := 0
|
||||
for ; i < numFixed && i < len(args); i++ {
|
||||
argv[i] = s.evalArg(dot, typ.In(i), args[i])
|
||||
}
|
||||
// Now the ... args.
|
||||
if typ.IsVariadic() {
|
||||
argType := typ.In(typ.NumIn() - 1).Elem() // Argument is a slice.
|
||||
for ; i < len(args); i++ {
|
||||
argv[i] = s.evalArg(dot, argType, args[i])
|
||||
}
|
||||
}
|
||||
// Add final value if necessary.
|
||||
if final.IsValid() {
|
||||
t := typ.In(typ.NumIn() - 1)
|
||||
if typ.IsVariadic() {
|
||||
t = t.Elem()
|
||||
}
|
||||
argv[i] = s.validateType(final, t)
|
||||
}
|
||||
result := fun.Call(argv)
|
||||
// If we have an error that is not nil, stop execution and return that error to the caller.
|
||||
if len(result) == 2 && !result[1].IsNil() {
|
||||
s.at(node)
|
||||
s.errorf("error calling %s: %s", name, result[1].Interface().(error))
|
||||
}
|
||||
return result[0]
|
||||
}
|
||||
|
||||
// canBeNil reports whether an untyped nil can be assigned to the type. See reflect.Zero.
|
||||
func canBeNil(typ reflect.Type) bool {
|
||||
switch typ.Kind() {
|
||||
case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// validateType guarantees that the value is valid and assignable to the type.
|
||||
func (s *state) validateType(value reflect.Value, typ reflect.Type) reflect.Value {
|
||||
if !value.IsValid() {
|
||||
if typ == nil || canBeNil(typ) {
|
||||
// An untyped nil interface{}. Accept as a proper nil value.
|
||||
return reflect.Zero(typ)
|
||||
}
|
||||
s.errorf("invalid value; expected %s", typ)
|
||||
}
|
||||
if typ != nil && !value.Type().AssignableTo(typ) {
|
||||
if value.Kind() == reflect.Interface && !value.IsNil() {
|
||||
value = value.Elem()
|
||||
if value.Type().AssignableTo(typ) {
|
||||
return value
|
||||
}
|
||||
// fallthrough
|
||||
}
|
||||
// Does one dereference or indirection work? We could do more, as we
|
||||
// do with method receivers, but that gets messy and method receivers
|
||||
// are much more constrained, so it makes more sense there than here.
|
||||
// Besides, one is almost always all you need.
|
||||
switch {
|
||||
case value.Kind() == reflect.Ptr && value.Type().Elem().AssignableTo(typ):
|
||||
value = value.Elem()
|
||||
if !value.IsValid() {
|
||||
s.errorf("dereference of nil pointer of type %s", typ)
|
||||
}
|
||||
case reflect.PtrTo(value.Type()).AssignableTo(typ) && value.CanAddr():
|
||||
value = value.Addr()
|
||||
default:
|
||||
s.errorf("wrong type for value; expected %s; got %s", typ, value.Type())
|
||||
}
|
||||
}
|
||||
return value
|
||||
}
|
||||
|
||||
func (s *state) evalArg(dot reflect.Value, typ reflect.Type, n parse.Node) reflect.Value {
|
||||
s.at(n)
|
||||
switch arg := n.(type) {
|
||||
case *parse.DotNode:
|
||||
return s.validateType(dot, typ)
|
||||
case *parse.NilNode:
|
||||
if canBeNil(typ) {
|
||||
return reflect.Zero(typ)
|
||||
}
|
||||
s.errorf("cannot assign nil to %s", typ)
|
||||
case *parse.FieldNode:
|
||||
return s.validateType(s.evalFieldNode(dot, arg, []parse.Node{n}, zero), typ)
|
||||
case *parse.VariableNode:
|
||||
return s.validateType(s.evalVariableNode(dot, arg, nil, zero), typ)
|
||||
case *parse.PipeNode:
|
||||
return s.validateType(s.evalPipeline(dot, arg), typ)
|
||||
case *parse.IdentifierNode:
|
||||
return s.evalFunction(dot, arg, arg, nil, zero)
|
||||
case *parse.ChainNode:
|
||||
return s.validateType(s.evalChainNode(dot, arg, nil, zero), typ)
|
||||
}
|
||||
switch typ.Kind() {
|
||||
case reflect.Bool:
|
||||
return s.evalBool(typ, n)
|
||||
case reflect.Complex64, reflect.Complex128:
|
||||
return s.evalComplex(typ, n)
|
||||
case reflect.Float32, reflect.Float64:
|
||||
return s.evalFloat(typ, n)
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
return s.evalInteger(typ, n)
|
||||
case reflect.Interface:
|
||||
if typ.NumMethod() == 0 {
|
||||
return s.evalEmptyInterface(dot, n)
|
||||
}
|
||||
case reflect.String:
|
||||
return s.evalString(typ, n)
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
return s.evalUnsignedInteger(typ, n)
|
||||
}
|
||||
s.errorf("can't handle %s for arg of type %s", n, typ)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
func (s *state) evalBool(typ reflect.Type, n parse.Node) reflect.Value {
|
||||
s.at(n)
|
||||
if n, ok := n.(*parse.BoolNode); ok {
|
||||
value := reflect.New(typ).Elem()
|
||||
value.SetBool(n.True)
|
||||
return value
|
||||
}
|
||||
s.errorf("expected bool; found %s", n)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
func (s *state) evalString(typ reflect.Type, n parse.Node) reflect.Value {
|
||||
s.at(n)
|
||||
if n, ok := n.(*parse.StringNode); ok {
|
||||
value := reflect.New(typ).Elem()
|
||||
value.SetString(n.Text)
|
||||
return value
|
||||
}
|
||||
s.errorf("expected string; found %s", n)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
func (s *state) evalInteger(typ reflect.Type, n parse.Node) reflect.Value {
|
||||
s.at(n)
|
||||
if n, ok := n.(*parse.NumberNode); ok && n.IsInt {
|
||||
value := reflect.New(typ).Elem()
|
||||
value.SetInt(n.Int64)
|
||||
return value
|
||||
}
|
||||
s.errorf("expected integer; found %s", n)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
func (s *state) evalUnsignedInteger(typ reflect.Type, n parse.Node) reflect.Value {
|
||||
s.at(n)
|
||||
if n, ok := n.(*parse.NumberNode); ok && n.IsUint {
|
||||
value := reflect.New(typ).Elem()
|
||||
value.SetUint(n.Uint64)
|
||||
return value
|
||||
}
|
||||
s.errorf("expected unsigned integer; found %s", n)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
func (s *state) evalFloat(typ reflect.Type, n parse.Node) reflect.Value {
|
||||
s.at(n)
|
||||
if n, ok := n.(*parse.NumberNode); ok && n.IsFloat {
|
||||
value := reflect.New(typ).Elem()
|
||||
value.SetFloat(n.Float64)
|
||||
return value
|
||||
}
|
||||
s.errorf("expected float; found %s", n)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
func (s *state) evalComplex(typ reflect.Type, n parse.Node) reflect.Value {
|
||||
if n, ok := n.(*parse.NumberNode); ok && n.IsComplex {
|
||||
value := reflect.New(typ).Elem()
|
||||
value.SetComplex(n.Complex128)
|
||||
return value
|
||||
}
|
||||
s.errorf("expected complex; found %s", n)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
func (s *state) evalEmptyInterface(dot reflect.Value, n parse.Node) reflect.Value {
|
||||
s.at(n)
|
||||
switch n := n.(type) {
|
||||
case *parse.BoolNode:
|
||||
return reflect.ValueOf(n.True)
|
||||
case *parse.DotNode:
|
||||
return dot
|
||||
case *parse.FieldNode:
|
||||
return s.evalFieldNode(dot, n, nil, zero)
|
||||
case *parse.IdentifierNode:
|
||||
return s.evalFunction(dot, n, n, nil, zero)
|
||||
case *parse.NilNode:
|
||||
// NilNode is handled in evalArg, the only place that calls here.
|
||||
s.errorf("evalEmptyInterface: nil (can't happen)")
|
||||
case *parse.NumberNode:
|
||||
return s.idealConstant(n)
|
||||
case *parse.StringNode:
|
||||
return reflect.ValueOf(n.Text)
|
||||
case *parse.VariableNode:
|
||||
return s.evalVariableNode(dot, n, nil, zero)
|
||||
case *parse.PipeNode:
|
||||
return s.evalPipeline(dot, n)
|
||||
}
|
||||
s.errorf("can't handle assignment of %s to empty interface argument", n)
|
||||
panic("not reached")
|
||||
}
|
||||
|
||||
// indirect returns the item at the end of indirection, and a bool to indicate if it's nil.
|
||||
// We indirect through pointers and empty interfaces (only) because
|
||||
// non-empty interfaces have methods we might need.
|
||||
func indirect(v reflect.Value) (rv reflect.Value, isNil bool) {
|
||||
for ; v.Kind() == reflect.Ptr || v.Kind() == reflect.Interface; v = v.Elem() {
|
||||
if v.IsNil() {
|
||||
return v, true
|
||||
}
|
||||
if v.Kind() == reflect.Interface && v.NumMethod() > 0 {
|
||||
break
|
||||
}
|
||||
}
|
||||
return v, false
|
||||
}
|
||||
|
||||
// printValue writes the textual representation of the value to the output of
|
||||
// the template.
|
||||
func (s *state) printValue(n parse.Node, v reflect.Value) {
|
||||
s.at(n)
|
||||
iface, ok := printableValue(v)
|
||||
if !ok {
|
||||
s.errorf("can't print %s of type %s", n, v.Type())
|
||||
}
|
||||
fmt.Fprint(s.wr, iface)
|
||||
}
|
||||
|
||||
// printableValue returns the, possibly indirected, interface value inside v that
|
||||
// is best for a call to formatted printer.
|
||||
func printableValue(v reflect.Value) (interface{}, bool) {
|
||||
if v.Kind() == reflect.Ptr {
|
||||
v, _ = indirect(v) // fmt.Fprint handles nil.
|
||||
}
|
||||
if !v.IsValid() {
|
||||
return "<no value>", true
|
||||
}
|
||||
|
||||
if !v.Type().Implements(errorType) && !v.Type().Implements(fmtStringerType) {
|
||||
if v.CanAddr() && (reflect.PtrTo(v.Type()).Implements(errorType) || reflect.PtrTo(v.Type()).Implements(fmtStringerType)) {
|
||||
v = v.Addr()
|
||||
} else {
|
||||
switch v.Kind() {
|
||||
case reflect.Chan, reflect.Func:
|
||||
return nil, false
|
||||
}
|
||||
}
|
||||
}
|
||||
return v.Interface(), true
|
||||
}
|
||||
|
||||
// Types to help sort the keys in a map for reproducible output.
|
||||
|
||||
type rvs []reflect.Value
|
||||
|
||||
func (x rvs) Len() int { return len(x) }
|
||||
func (x rvs) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
|
||||
|
||||
type rvInts struct{ rvs }
|
||||
|
||||
func (x rvInts) Less(i, j int) bool { return x.rvs[i].Int() < x.rvs[j].Int() }
|
||||
|
||||
type rvUints struct{ rvs }
|
||||
|
||||
func (x rvUints) Less(i, j int) bool { return x.rvs[i].Uint() < x.rvs[j].Uint() }
|
||||
|
||||
type rvFloats struct{ rvs }
|
||||
|
||||
func (x rvFloats) Less(i, j int) bool { return x.rvs[i].Float() < x.rvs[j].Float() }
|
||||
|
||||
type rvStrings struct{ rvs }
|
||||
|
||||
func (x rvStrings) Less(i, j int) bool { return x.rvs[i].String() < x.rvs[j].String() }
|
||||
|
||||
// sortKeys sorts (if it can) the slice of reflect.Values, which is a slice of map keys.
|
||||
func sortKeys(v []reflect.Value) []reflect.Value {
|
||||
if len(v) <= 1 {
|
||||
return v
|
||||
}
|
||||
switch v[0].Kind() {
|
||||
case reflect.Float32, reflect.Float64:
|
||||
sort.Sort(rvFloats{v})
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
sort.Sort(rvInts{v})
|
||||
case reflect.String:
|
||||
sort.Sort(rvStrings{v})
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
sort.Sort(rvUints{v})
|
||||
}
|
||||
return v
|
||||
}
|
||||
-1044
File diff suppressed because it is too large
Load Diff
-598
@@ -1,598 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package template
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"net/url"
|
||||
"reflect"
|
||||
"strings"
|
||||
"unicode"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
// FuncMap is the type of the map defining the mapping from names to functions.
|
||||
// Each function must have either a single return value, or two return values of
|
||||
// which the second has type error. In that case, if the second (error)
|
||||
// return value evaluates to non-nil during execution, execution terminates and
|
||||
// Execute returns that error.
|
||||
type FuncMap map[string]interface{}
|
||||
|
||||
var builtins = FuncMap{
|
||||
"and": and,
|
||||
"call": call,
|
||||
"html": HTMLEscaper,
|
||||
"index": index,
|
||||
"js": JSEscaper,
|
||||
"len": length,
|
||||
"not": not,
|
||||
"or": or,
|
||||
"print": fmt.Sprint,
|
||||
"printf": fmt.Sprintf,
|
||||
"println": fmt.Sprintln,
|
||||
"urlquery": URLQueryEscaper,
|
||||
|
||||
// Comparisons
|
||||
"eq": eq, // ==
|
||||
"ge": ge, // >=
|
||||
"gt": gt, // >
|
||||
"le": le, // <=
|
||||
"lt": lt, // <
|
||||
"ne": ne, // !=
|
||||
}
|
||||
|
||||
var builtinFuncs = createValueFuncs(builtins)
|
||||
|
||||
// createValueFuncs turns a FuncMap into a map[string]reflect.Value
|
||||
func createValueFuncs(funcMap FuncMap) map[string]reflect.Value {
|
||||
m := make(map[string]reflect.Value)
|
||||
addValueFuncs(m, funcMap)
|
||||
return m
|
||||
}
|
||||
|
||||
// addValueFuncs adds to values the functions in funcs, converting them to reflect.Values.
|
||||
func addValueFuncs(out map[string]reflect.Value, in FuncMap) {
|
||||
for name, fn := range in {
|
||||
v := reflect.ValueOf(fn)
|
||||
if v.Kind() != reflect.Func {
|
||||
panic("value for " + name + " not a function")
|
||||
}
|
||||
if !goodFunc(v.Type()) {
|
||||
panic(fmt.Errorf("can't install method/function %q with %d results", name, v.Type().NumOut()))
|
||||
}
|
||||
out[name] = v
|
||||
}
|
||||
}
|
||||
|
||||
// addFuncs adds to values the functions in funcs. It does no checking of the input -
|
||||
// call addValueFuncs first.
|
||||
func addFuncs(out, in FuncMap) {
|
||||
for name, fn := range in {
|
||||
out[name] = fn
|
||||
}
|
||||
}
|
||||
|
||||
// goodFunc checks that the function or method has the right result signature.
|
||||
func goodFunc(typ reflect.Type) bool {
|
||||
// We allow functions with 1 result or 2 results where the second is an error.
|
||||
switch {
|
||||
case typ.NumOut() == 1:
|
||||
return true
|
||||
case typ.NumOut() == 2 && typ.Out(1) == errorType:
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// findFunction looks for a function in the template, and global map.
|
||||
func findFunction(name string, tmpl *Template) (reflect.Value, bool) {
|
||||
if tmpl != nil && tmpl.common != nil {
|
||||
if fn := tmpl.execFuncs[name]; fn.IsValid() {
|
||||
return fn, true
|
||||
}
|
||||
}
|
||||
if fn := builtinFuncs[name]; fn.IsValid() {
|
||||
return fn, true
|
||||
}
|
||||
return reflect.Value{}, false
|
||||
}
|
||||
|
||||
// Indexing.
|
||||
|
||||
// index returns the result of indexing its first argument by the following
|
||||
// arguments. Thus "index x 1 2 3" is, in Go syntax, x[1][2][3]. Each
|
||||
// indexed item must be a map, slice, or array.
|
||||
func index(item interface{}, indices ...interface{}) (interface{}, error) {
|
||||
v := reflect.ValueOf(item)
|
||||
for _, i := range indices {
|
||||
index := reflect.ValueOf(i)
|
||||
var isNil bool
|
||||
if v, isNil = indirect(v); isNil {
|
||||
return nil, fmt.Errorf("index of nil pointer")
|
||||
}
|
||||
switch v.Kind() {
|
||||
case reflect.Array, reflect.Slice, reflect.String:
|
||||
var x int64
|
||||
switch index.Kind() {
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
x = index.Int()
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
x = int64(index.Uint())
|
||||
default:
|
||||
return nil, fmt.Errorf("cannot index slice/array with type %s", index.Type())
|
||||
}
|
||||
if x < 0 || x >= int64(v.Len()) {
|
||||
return nil, fmt.Errorf("index out of range: %d", x)
|
||||
}
|
||||
v = v.Index(int(x))
|
||||
case reflect.Map:
|
||||
if !index.IsValid() {
|
||||
index = reflect.Zero(v.Type().Key())
|
||||
}
|
||||
if !index.Type().AssignableTo(v.Type().Key()) {
|
||||
return nil, fmt.Errorf("%s is not index type for %s", index.Type(), v.Type())
|
||||
}
|
||||
if x := v.MapIndex(index); x.IsValid() {
|
||||
v = x
|
||||
} else {
|
||||
v = reflect.Zero(v.Type().Elem())
|
||||
}
|
||||
default:
|
||||
return nil, fmt.Errorf("can't index item of type %s", v.Type())
|
||||
}
|
||||
}
|
||||
return v.Interface(), nil
|
||||
}
|
||||
|
||||
// Length
|
||||
|
||||
// length returns the length of the item, with an error if it has no defined length.
|
||||
func length(item interface{}) (int, error) {
|
||||
v, isNil := indirect(reflect.ValueOf(item))
|
||||
if isNil {
|
||||
return 0, fmt.Errorf("len of nil pointer")
|
||||
}
|
||||
switch v.Kind() {
|
||||
case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice, reflect.String:
|
||||
return v.Len(), nil
|
||||
}
|
||||
return 0, fmt.Errorf("len of type %s", v.Type())
|
||||
}
|
||||
|
||||
// Function invocation
|
||||
|
||||
// call returns the result of evaluating the first argument as a function.
|
||||
// The function must return 1 result, or 2 results, the second of which is an error.
|
||||
func call(fn interface{}, args ...interface{}) (interface{}, error) {
|
||||
v := reflect.ValueOf(fn)
|
||||
typ := v.Type()
|
||||
if typ.Kind() != reflect.Func {
|
||||
return nil, fmt.Errorf("non-function of type %s", typ)
|
||||
}
|
||||
if !goodFunc(typ) {
|
||||
return nil, fmt.Errorf("function called with %d args; should be 1 or 2", typ.NumOut())
|
||||
}
|
||||
numIn := typ.NumIn()
|
||||
var dddType reflect.Type
|
||||
if typ.IsVariadic() {
|
||||
if len(args) < numIn-1 {
|
||||
return nil, fmt.Errorf("wrong number of args: got %d want at least %d", len(args), numIn-1)
|
||||
}
|
||||
dddType = typ.In(numIn - 1).Elem()
|
||||
} else {
|
||||
if len(args) != numIn {
|
||||
return nil, fmt.Errorf("wrong number of args: got %d want %d", len(args), numIn)
|
||||
}
|
||||
}
|
||||
argv := make([]reflect.Value, len(args))
|
||||
for i, arg := range args {
|
||||
value := reflect.ValueOf(arg)
|
||||
// Compute the expected type. Clumsy because of variadics.
|
||||
var argType reflect.Type
|
||||
if !typ.IsVariadic() || i < numIn-1 {
|
||||
argType = typ.In(i)
|
||||
} else {
|
||||
argType = dddType
|
||||
}
|
||||
if !value.IsValid() && canBeNil(argType) {
|
||||
value = reflect.Zero(argType)
|
||||
}
|
||||
if !value.Type().AssignableTo(argType) {
|
||||
return nil, fmt.Errorf("arg %d has type %s; should be %s", i, value.Type(), argType)
|
||||
}
|
||||
argv[i] = value
|
||||
}
|
||||
result := v.Call(argv)
|
||||
if len(result) == 2 && !result[1].IsNil() {
|
||||
return result[0].Interface(), result[1].Interface().(error)
|
||||
}
|
||||
return result[0].Interface(), nil
|
||||
}
|
||||
|
||||
// Boolean logic.
|
||||
|
||||
func truth(a interface{}) bool {
|
||||
t, _ := isTrue(reflect.ValueOf(a))
|
||||
return t
|
||||
}
|
||||
|
||||
// and computes the Boolean AND of its arguments, returning
|
||||
// the first false argument it encounters, or the last argument.
|
||||
func and(arg0 interface{}, args ...interface{}) interface{} {
|
||||
if !truth(arg0) {
|
||||
return arg0
|
||||
}
|
||||
for i := range args {
|
||||
arg0 = args[i]
|
||||
if !truth(arg0) {
|
||||
break
|
||||
}
|
||||
}
|
||||
return arg0
|
||||
}
|
||||
|
||||
// or computes the Boolean OR of its arguments, returning
|
||||
// the first true argument it encounters, or the last argument.
|
||||
func or(arg0 interface{}, args ...interface{}) interface{} {
|
||||
if truth(arg0) {
|
||||
return arg0
|
||||
}
|
||||
for i := range args {
|
||||
arg0 = args[i]
|
||||
if truth(arg0) {
|
||||
break
|
||||
}
|
||||
}
|
||||
return arg0
|
||||
}
|
||||
|
||||
// not returns the Boolean negation of its argument.
|
||||
func not(arg interface{}) (truth bool) {
|
||||
truth, _ = isTrue(reflect.ValueOf(arg))
|
||||
return !truth
|
||||
}
|
||||
|
||||
// Comparison.
|
||||
|
||||
// TODO: Perhaps allow comparison between signed and unsigned integers.
|
||||
|
||||
var (
|
||||
errBadComparisonType = errors.New("invalid type for comparison")
|
||||
errBadComparison = errors.New("incompatible types for comparison")
|
||||
errNoComparison = errors.New("missing argument for comparison")
|
||||
)
|
||||
|
||||
type kind int
|
||||
|
||||
const (
|
||||
invalidKind kind = iota
|
||||
boolKind
|
||||
complexKind
|
||||
intKind
|
||||
floatKind
|
||||
integerKind
|
||||
stringKind
|
||||
uintKind
|
||||
)
|
||||
|
||||
func basicKind(v reflect.Value) (kind, error) {
|
||||
switch v.Kind() {
|
||||
case reflect.Bool:
|
||||
return boolKind, nil
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
return intKind, nil
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
return uintKind, nil
|
||||
case reflect.Float32, reflect.Float64:
|
||||
return floatKind, nil
|
||||
case reflect.Complex64, reflect.Complex128:
|
||||
return complexKind, nil
|
||||
case reflect.String:
|
||||
return stringKind, nil
|
||||
}
|
||||
return invalidKind, errBadComparisonType
|
||||
}
|
||||
|
||||
// eq evaluates the comparison a == b || a == c || ...
|
||||
func eq(arg1 interface{}, arg2 ...interface{}) (bool, error) {
|
||||
v1 := reflect.ValueOf(arg1)
|
||||
k1, err := basicKind(v1)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
if len(arg2) == 0 {
|
||||
return false, errNoComparison
|
||||
}
|
||||
for _, arg := range arg2 {
|
||||
v2 := reflect.ValueOf(arg)
|
||||
k2, err := basicKind(v2)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
truth := false
|
||||
if k1 != k2 {
|
||||
// Special case: Can compare integer values regardless of type's sign.
|
||||
switch {
|
||||
case k1 == intKind && k2 == uintKind:
|
||||
truth = v1.Int() >= 0 && uint64(v1.Int()) == v2.Uint()
|
||||
case k1 == uintKind && k2 == intKind:
|
||||
truth = v2.Int() >= 0 && v1.Uint() == uint64(v2.Int())
|
||||
default:
|
||||
return false, errBadComparison
|
||||
}
|
||||
} else {
|
||||
switch k1 {
|
||||
case boolKind:
|
||||
truth = v1.Bool() == v2.Bool()
|
||||
case complexKind:
|
||||
truth = v1.Complex() == v2.Complex()
|
||||
case floatKind:
|
||||
truth = v1.Float() == v2.Float()
|
||||
case intKind:
|
||||
truth = v1.Int() == v2.Int()
|
||||
case stringKind:
|
||||
truth = v1.String() == v2.String()
|
||||
case uintKind:
|
||||
truth = v1.Uint() == v2.Uint()
|
||||
default:
|
||||
panic("invalid kind")
|
||||
}
|
||||
}
|
||||
if truth {
|
||||
return true, nil
|
||||
}
|
||||
}
|
||||
return false, nil
|
||||
}
|
||||
|
||||
// ne evaluates the comparison a != b.
|
||||
func ne(arg1, arg2 interface{}) (bool, error) {
|
||||
// != is the inverse of ==.
|
||||
equal, err := eq(arg1, arg2)
|
||||
return !equal, err
|
||||
}
|
||||
|
||||
// lt evaluates the comparison a < b.
|
||||
func lt(arg1, arg2 interface{}) (bool, error) {
|
||||
v1 := reflect.ValueOf(arg1)
|
||||
k1, err := basicKind(v1)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
v2 := reflect.ValueOf(arg2)
|
||||
k2, err := basicKind(v2)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
truth := false
|
||||
if k1 != k2 {
|
||||
// Special case: Can compare integer values regardless of type's sign.
|
||||
switch {
|
||||
case k1 == intKind && k2 == uintKind:
|
||||
truth = v1.Int() < 0 || uint64(v1.Int()) < v2.Uint()
|
||||
case k1 == uintKind && k2 == intKind:
|
||||
truth = v2.Int() >= 0 && v1.Uint() < uint64(v2.Int())
|
||||
default:
|
||||
return false, errBadComparison
|
||||
}
|
||||
} else {
|
||||
switch k1 {
|
||||
case boolKind, complexKind:
|
||||
return false, errBadComparisonType
|
||||
case floatKind:
|
||||
truth = v1.Float() < v2.Float()
|
||||
case intKind:
|
||||
truth = v1.Int() < v2.Int()
|
||||
case stringKind:
|
||||
truth = v1.String() < v2.String()
|
||||
case uintKind:
|
||||
truth = v1.Uint() < v2.Uint()
|
||||
default:
|
||||
panic("invalid kind")
|
||||
}
|
||||
}
|
||||
return truth, nil
|
||||
}
|
||||
|
||||
// le evaluates the comparison <= b.
|
||||
func le(arg1, arg2 interface{}) (bool, error) {
|
||||
// <= is < or ==.
|
||||
lessThan, err := lt(arg1, arg2)
|
||||
if lessThan || err != nil {
|
||||
return lessThan, err
|
||||
}
|
||||
return eq(arg1, arg2)
|
||||
}
|
||||
|
||||
// gt evaluates the comparison a > b.
|
||||
func gt(arg1, arg2 interface{}) (bool, error) {
|
||||
// > is the inverse of <=.
|
||||
lessOrEqual, err := le(arg1, arg2)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
return !lessOrEqual, nil
|
||||
}
|
||||
|
||||
// ge evaluates the comparison a >= b.
|
||||
func ge(arg1, arg2 interface{}) (bool, error) {
|
||||
// >= is the inverse of <.
|
||||
lessThan, err := lt(arg1, arg2)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
return !lessThan, nil
|
||||
}
|
||||
|
||||
// HTML escaping.
|
||||
|
||||
var (
|
||||
htmlQuot = []byte(""") // shorter than """
|
||||
htmlApos = []byte("'") // shorter than "'" and apos was not in HTML until HTML5
|
||||
htmlAmp = []byte("&")
|
||||
htmlLt = []byte("<")
|
||||
htmlGt = []byte(">")
|
||||
)
|
||||
|
||||
// HTMLEscape writes to w the escaped HTML equivalent of the plain text data b.
|
||||
func HTMLEscape(w io.Writer, b []byte) {
|
||||
last := 0
|
||||
for i, c := range b {
|
||||
var html []byte
|
||||
switch c {
|
||||
case '"':
|
||||
html = htmlQuot
|
||||
case '\'':
|
||||
html = htmlApos
|
||||
case '&':
|
||||
html = htmlAmp
|
||||
case '<':
|
||||
html = htmlLt
|
||||
case '>':
|
||||
html = htmlGt
|
||||
default:
|
||||
continue
|
||||
}
|
||||
w.Write(b[last:i])
|
||||
w.Write(html)
|
||||
last = i + 1
|
||||
}
|
||||
w.Write(b[last:])
|
||||
}
|
||||
|
||||
// HTMLEscapeString returns the escaped HTML equivalent of the plain text data s.
|
||||
func HTMLEscapeString(s string) string {
|
||||
// Avoid allocation if we can.
|
||||
if strings.IndexAny(s, `'"&<>`) < 0 {
|
||||
return s
|
||||
}
|
||||
var b bytes.Buffer
|
||||
HTMLEscape(&b, []byte(s))
|
||||
return b.String()
|
||||
}
|
||||
|
||||
// HTMLEscaper returns the escaped HTML equivalent of the textual
|
||||
// representation of its arguments.
|
||||
func HTMLEscaper(args ...interface{}) string {
|
||||
return HTMLEscapeString(evalArgs(args))
|
||||
}
|
||||
|
||||
// JavaScript escaping.
|
||||
|
||||
var (
|
||||
jsLowUni = []byte(`\u00`)
|
||||
hex = []byte("0123456789ABCDEF")
|
||||
|
||||
jsBackslash = []byte(`\\`)
|
||||
jsApos = []byte(`\'`)
|
||||
jsQuot = []byte(`\"`)
|
||||
jsLt = []byte(`\x3C`)
|
||||
jsGt = []byte(`\x3E`)
|
||||
)
|
||||
|
||||
// JSEscape writes to w the escaped JavaScript equivalent of the plain text data b.
|
||||
func JSEscape(w io.Writer, b []byte) {
|
||||
last := 0
|
||||
for i := 0; i < len(b); i++ {
|
||||
c := b[i]
|
||||
|
||||
if !jsIsSpecial(rune(c)) {
|
||||
// fast path: nothing to do
|
||||
continue
|
||||
}
|
||||
w.Write(b[last:i])
|
||||
|
||||
if c < utf8.RuneSelf {
|
||||
// Quotes, slashes and angle brackets get quoted.
|
||||
// Control characters get written as \u00XX.
|
||||
switch c {
|
||||
case '\\':
|
||||
w.Write(jsBackslash)
|
||||
case '\'':
|
||||
w.Write(jsApos)
|
||||
case '"':
|
||||
w.Write(jsQuot)
|
||||
case '<':
|
||||
w.Write(jsLt)
|
||||
case '>':
|
||||
w.Write(jsGt)
|
||||
default:
|
||||
w.Write(jsLowUni)
|
||||
t, b := c>>4, c&0x0f
|
||||
w.Write(hex[t : t+1])
|
||||
w.Write(hex[b : b+1])
|
||||
}
|
||||
} else {
|
||||
// Unicode rune.
|
||||
r, size := utf8.DecodeRune(b[i:])
|
||||
if unicode.IsPrint(r) {
|
||||
w.Write(b[i : i+size])
|
||||
} else {
|
||||
fmt.Fprintf(w, "\\u%04X", r)
|
||||
}
|
||||
i += size - 1
|
||||
}
|
||||
last = i + 1
|
||||
}
|
||||
w.Write(b[last:])
|
||||
}
|
||||
|
||||
// JSEscapeString returns the escaped JavaScript equivalent of the plain text data s.
|
||||
func JSEscapeString(s string) string {
|
||||
// Avoid allocation if we can.
|
||||
if strings.IndexFunc(s, jsIsSpecial) < 0 {
|
||||
return s
|
||||
}
|
||||
var b bytes.Buffer
|
||||
JSEscape(&b, []byte(s))
|
||||
return b.String()
|
||||
}
|
||||
|
||||
func jsIsSpecial(r rune) bool {
|
||||
switch r {
|
||||
case '\\', '\'', '"', '<', '>':
|
||||
return true
|
||||
}
|
||||
return r < ' ' || utf8.RuneSelf <= r
|
||||
}
|
||||
|
||||
// JSEscaper returns the escaped JavaScript equivalent of the textual
|
||||
// representation of its arguments.
|
||||
func JSEscaper(args ...interface{}) string {
|
||||
return JSEscapeString(evalArgs(args))
|
||||
}
|
||||
|
||||
// URLQueryEscaper returns the escaped value of the textual representation of
|
||||
// its arguments in a form suitable for embedding in a URL query.
|
||||
func URLQueryEscaper(args ...interface{}) string {
|
||||
return url.QueryEscape(evalArgs(args))
|
||||
}
|
||||
|
||||
// evalArgs formats the list of arguments into a string. It is therefore equivalent to
|
||||
// fmt.Sprint(args...)
|
||||
// except that each argument is indirected (if a pointer), as required,
|
||||
// using the same rules as the default string evaluation during template
|
||||
// execution.
|
||||
func evalArgs(args []interface{}) string {
|
||||
ok := false
|
||||
var s string
|
||||
// Fast path for simple common case.
|
||||
if len(args) == 1 {
|
||||
s, ok = args[0].(string)
|
||||
}
|
||||
if !ok {
|
||||
for i, arg := range args {
|
||||
a, ok := printableValue(reflect.ValueOf(arg))
|
||||
if ok {
|
||||
args[i] = a
|
||||
} // else left fmt do its thing
|
||||
}
|
||||
s = fmt.Sprint(args...)
|
||||
}
|
||||
return s
|
||||
}
|
||||
-108
@@ -1,108 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Helper functions to make constructing templates easier.
|
||||
|
||||
package template
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"path/filepath"
|
||||
)
|
||||
|
||||
// Functions and methods to parse templates.
|
||||
|
||||
// Must is a helper that wraps a call to a function returning (*Template, error)
|
||||
// and panics if the error is non-nil. It is intended for use in variable
|
||||
// initializations such as
|
||||
// var t = template.Must(template.New("name").Parse("text"))
|
||||
func Must(t *Template, err error) *Template {
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return t
|
||||
}
|
||||
|
||||
// ParseFiles creates a new Template and parses the template definitions from
|
||||
// the named files. The returned template's name will have the (base) name and
|
||||
// (parsed) contents of the first file. There must be at least one file.
|
||||
// If an error occurs, parsing stops and the returned *Template is nil.
|
||||
func ParseFiles(filenames ...string) (*Template, error) {
|
||||
return parseFiles(nil, filenames...)
|
||||
}
|
||||
|
||||
// ParseFiles parses the named files and associates the resulting templates with
|
||||
// t. If an error occurs, parsing stops and the returned template is nil;
|
||||
// otherwise it is t. There must be at least one file.
|
||||
func (t *Template) ParseFiles(filenames ...string) (*Template, error) {
|
||||
return parseFiles(t, filenames...)
|
||||
}
|
||||
|
||||
// parseFiles is the helper for the method and function. If the argument
|
||||
// template is nil, it is created from the first file.
|
||||
func parseFiles(t *Template, filenames ...string) (*Template, error) {
|
||||
if len(filenames) == 0 {
|
||||
// Not really a problem, but be consistent.
|
||||
return nil, fmt.Errorf("template: no files named in call to ParseFiles")
|
||||
}
|
||||
for _, filename := range filenames {
|
||||
b, err := ioutil.ReadFile(filename)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
s := string(b)
|
||||
name := filepath.Base(filename)
|
||||
// First template becomes return value if not already defined,
|
||||
// and we use that one for subsequent New calls to associate
|
||||
// all the templates together. Also, if this file has the same name
|
||||
// as t, this file becomes the contents of t, so
|
||||
// t, err := New(name).Funcs(xxx).ParseFiles(name)
|
||||
// works. Otherwise we create a new template associated with t.
|
||||
var tmpl *Template
|
||||
if t == nil {
|
||||
t = New(name)
|
||||
}
|
||||
if name == t.Name() {
|
||||
tmpl = t
|
||||
} else {
|
||||
tmpl = t.New(name)
|
||||
}
|
||||
_, err = tmpl.Parse(s)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
return t, nil
|
||||
}
|
||||
|
||||
// ParseGlob creates a new Template and parses the template definitions from the
|
||||
// files identified by the pattern, which must match at least one file. The
|
||||
// returned template will have the (base) name and (parsed) contents of the
|
||||
// first file matched by the pattern. ParseGlob is equivalent to calling
|
||||
// ParseFiles with the list of files matched by the pattern.
|
||||
func ParseGlob(pattern string) (*Template, error) {
|
||||
return parseGlob(nil, pattern)
|
||||
}
|
||||
|
||||
// ParseGlob parses the template definitions in the files identified by the
|
||||
// pattern and associates the resulting templates with t. The pattern is
|
||||
// processed by filepath.Glob and must match at least one file. ParseGlob is
|
||||
// equivalent to calling t.ParseFiles with the list of files matched by the
|
||||
// pattern.
|
||||
func (t *Template) ParseGlob(pattern string) (*Template, error) {
|
||||
return parseGlob(t, pattern)
|
||||
}
|
||||
|
||||
// parseGlob is the implementation of the function and method ParseGlob.
|
||||
func parseGlob(t *Template, pattern string) (*Template, error) {
|
||||
filenames, err := filepath.Glob(pattern)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if len(filenames) == 0 {
|
||||
return nil, fmt.Errorf("template: pattern matches no files: %#q", pattern)
|
||||
}
|
||||
return parseFiles(t, filenames...)
|
||||
}
|
||||
-293
@@ -1,293 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package template
|
||||
|
||||
// Tests for mulitple-template parsing and execution.
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"strings"
|
||||
"testing"
|
||||
|
||||
"github.com/alecthomas/template/parse"
|
||||
)
|
||||
|
||||
const (
|
||||
noError = true
|
||||
hasError = false
|
||||
)
|
||||
|
||||
type multiParseTest struct {
|
||||
name string
|
||||
input string
|
||||
ok bool
|
||||
names []string
|
||||
results []string
|
||||
}
|
||||
|
||||
var multiParseTests = []multiParseTest{
|
||||
{"empty", "", noError,
|
||||
nil,
|
||||
nil},
|
||||
{"one", `{{define "foo"}} FOO {{end}}`, noError,
|
||||
[]string{"foo"},
|
||||
[]string{" FOO "}},
|
||||
{"two", `{{define "foo"}} FOO {{end}}{{define "bar"}} BAR {{end}}`, noError,
|
||||
[]string{"foo", "bar"},
|
||||
[]string{" FOO ", " BAR "}},
|
||||
// errors
|
||||
{"missing end", `{{define "foo"}} FOO `, hasError,
|
||||
nil,
|
||||
nil},
|
||||
{"malformed name", `{{define "foo}} FOO `, hasError,
|
||||
nil,
|
||||
nil},
|
||||
}
|
||||
|
||||
func TestMultiParse(t *testing.T) {
|
||||
for _, test := range multiParseTests {
|
||||
template, err := New("root").Parse(test.input)
|
||||
switch {
|
||||
case err == nil && !test.ok:
|
||||
t.Errorf("%q: expected error; got none", test.name)
|
||||
continue
|
||||
case err != nil && test.ok:
|
||||
t.Errorf("%q: unexpected error: %v", test.name, err)
|
||||
continue
|
||||
case err != nil && !test.ok:
|
||||
// expected error, got one
|
||||
if *debug {
|
||||
fmt.Printf("%s: %s\n\t%s\n", test.name, test.input, err)
|
||||
}
|
||||
continue
|
||||
}
|
||||
if template == nil {
|
||||
continue
|
||||
}
|
||||
if len(template.tmpl) != len(test.names)+1 { // +1 for root
|
||||
t.Errorf("%s: wrong number of templates; wanted %d got %d", test.name, len(test.names), len(template.tmpl))
|
||||
continue
|
||||
}
|
||||
for i, name := range test.names {
|
||||
tmpl, ok := template.tmpl[name]
|
||||
if !ok {
|
||||
t.Errorf("%s: can't find template %q", test.name, name)
|
||||
continue
|
||||
}
|
||||
result := tmpl.Root.String()
|
||||
if result != test.results[i] {
|
||||
t.Errorf("%s=(%q): got\n\t%v\nexpected\n\t%v", test.name, test.input, result, test.results[i])
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
var multiExecTests = []execTest{
|
||||
{"empty", "", "", nil, true},
|
||||
{"text", "some text", "some text", nil, true},
|
||||
{"invoke x", `{{template "x" .SI}}`, "TEXT", tVal, true},
|
||||
{"invoke x no args", `{{template "x"}}`, "TEXT", tVal, true},
|
||||
{"invoke dot int", `{{template "dot" .I}}`, "17", tVal, true},
|
||||
{"invoke dot []int", `{{template "dot" .SI}}`, "[3 4 5]", tVal, true},
|
||||
{"invoke dotV", `{{template "dotV" .U}}`, "v", tVal, true},
|
||||
{"invoke nested int", `{{template "nested" .I}}`, "17", tVal, true},
|
||||
{"variable declared by template", `{{template "nested" $x:=.SI}},{{index $x 1}}`, "[3 4 5],4", tVal, true},
|
||||
|
||||
// User-defined function: test argument evaluator.
|
||||
{"testFunc literal", `{{oneArg "joe"}}`, "oneArg=joe", tVal, true},
|
||||
{"testFunc .", `{{oneArg .}}`, "oneArg=joe", "joe", true},
|
||||
}
|
||||
|
||||
// These strings are also in testdata/*.
|
||||
const multiText1 = `
|
||||
{{define "x"}}TEXT{{end}}
|
||||
{{define "dotV"}}{{.V}}{{end}}
|
||||
`
|
||||
|
||||
const multiText2 = `
|
||||
{{define "dot"}}{{.}}{{end}}
|
||||
{{define "nested"}}{{template "dot" .}}{{end}}
|
||||
`
|
||||
|
||||
func TestMultiExecute(t *testing.T) {
|
||||
// Declare a couple of templates first.
|
||||
template, err := New("root").Parse(multiText1)
|
||||
if err != nil {
|
||||
t.Fatalf("parse error for 1: %s", err)
|
||||
}
|
||||
_, err = template.Parse(multiText2)
|
||||
if err != nil {
|
||||
t.Fatalf("parse error for 2: %s", err)
|
||||
}
|
||||
testExecute(multiExecTests, template, t)
|
||||
}
|
||||
|
||||
func TestParseFiles(t *testing.T) {
|
||||
_, err := ParseFiles("DOES NOT EXIST")
|
||||
if err == nil {
|
||||
t.Error("expected error for non-existent file; got none")
|
||||
}
|
||||
template := New("root")
|
||||
_, err = template.ParseFiles("testdata/file1.tmpl", "testdata/file2.tmpl")
|
||||
if err != nil {
|
||||
t.Fatalf("error parsing files: %v", err)
|
||||
}
|
||||
testExecute(multiExecTests, template, t)
|
||||
}
|
||||
|
||||
func TestParseGlob(t *testing.T) {
|
||||
_, err := ParseGlob("DOES NOT EXIST")
|
||||
if err == nil {
|
||||
t.Error("expected error for non-existent file; got none")
|
||||
}
|
||||
_, err = New("error").ParseGlob("[x")
|
||||
if err == nil {
|
||||
t.Error("expected error for bad pattern; got none")
|
||||
}
|
||||
template := New("root")
|
||||
_, err = template.ParseGlob("testdata/file*.tmpl")
|
||||
if err != nil {
|
||||
t.Fatalf("error parsing files: %v", err)
|
||||
}
|
||||
testExecute(multiExecTests, template, t)
|
||||
}
|
||||
|
||||
// In these tests, actual content (not just template definitions) comes from the parsed files.
|
||||
|
||||
var templateFileExecTests = []execTest{
|
||||
{"test", `{{template "tmpl1.tmpl"}}{{template "tmpl2.tmpl"}}`, "template1\n\ny\ntemplate2\n\nx\n", 0, true},
|
||||
}
|
||||
|
||||
func TestParseFilesWithData(t *testing.T) {
|
||||
template, err := New("root").ParseFiles("testdata/tmpl1.tmpl", "testdata/tmpl2.tmpl")
|
||||
if err != nil {
|
||||
t.Fatalf("error parsing files: %v", err)
|
||||
}
|
||||
testExecute(templateFileExecTests, template, t)
|
||||
}
|
||||
|
||||
func TestParseGlobWithData(t *testing.T) {
|
||||
template, err := New("root").ParseGlob("testdata/tmpl*.tmpl")
|
||||
if err != nil {
|
||||
t.Fatalf("error parsing files: %v", err)
|
||||
}
|
||||
testExecute(templateFileExecTests, template, t)
|
||||
}
|
||||
|
||||
const (
|
||||
cloneText1 = `{{define "a"}}{{template "b"}}{{template "c"}}{{end}}`
|
||||
cloneText2 = `{{define "b"}}b{{end}}`
|
||||
cloneText3 = `{{define "c"}}root{{end}}`
|
||||
cloneText4 = `{{define "c"}}clone{{end}}`
|
||||
)
|
||||
|
||||
func TestClone(t *testing.T) {
|
||||
// Create some templates and clone the root.
|
||||
root, err := New("root").Parse(cloneText1)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
_, err = root.Parse(cloneText2)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
clone := Must(root.Clone())
|
||||
// Add variants to both.
|
||||
_, err = root.Parse(cloneText3)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
_, err = clone.Parse(cloneText4)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
// Verify that the clone is self-consistent.
|
||||
for k, v := range clone.tmpl {
|
||||
if k == clone.name && v.tmpl[k] != clone {
|
||||
t.Error("clone does not contain root")
|
||||
}
|
||||
if v != v.tmpl[v.name] {
|
||||
t.Errorf("clone does not contain self for %q", k)
|
||||
}
|
||||
}
|
||||
// Execute root.
|
||||
var b bytes.Buffer
|
||||
err = root.ExecuteTemplate(&b, "a", 0)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if b.String() != "broot" {
|
||||
t.Errorf("expected %q got %q", "broot", b.String())
|
||||
}
|
||||
// Execute copy.
|
||||
b.Reset()
|
||||
err = clone.ExecuteTemplate(&b, "a", 0)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if b.String() != "bclone" {
|
||||
t.Errorf("expected %q got %q", "bclone", b.String())
|
||||
}
|
||||
}
|
||||
|
||||
func TestAddParseTree(t *testing.T) {
|
||||
// Create some templates.
|
||||
root, err := New("root").Parse(cloneText1)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
_, err = root.Parse(cloneText2)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
// Add a new parse tree.
|
||||
tree, err := parse.Parse("cloneText3", cloneText3, "", "", nil, builtins)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
added, err := root.AddParseTree("c", tree["c"])
|
||||
// Execute.
|
||||
var b bytes.Buffer
|
||||
err = added.ExecuteTemplate(&b, "a", 0)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if b.String() != "broot" {
|
||||
t.Errorf("expected %q got %q", "broot", b.String())
|
||||
}
|
||||
}
|
||||
|
||||
// Issue 7032
|
||||
func TestAddParseTreeToUnparsedTemplate(t *testing.T) {
|
||||
master := "{{define \"master\"}}{{end}}"
|
||||
tmpl := New("master")
|
||||
tree, err := parse.Parse("master", master, "", "", nil)
|
||||
if err != nil {
|
||||
t.Fatalf("unexpected parse err: %v", err)
|
||||
}
|
||||
masterTree := tree["master"]
|
||||
tmpl.AddParseTree("master", masterTree) // used to panic
|
||||
}
|
||||
|
||||
func TestRedefinition(t *testing.T) {
|
||||
var tmpl *Template
|
||||
var err error
|
||||
if tmpl, err = New("tmpl1").Parse(`{{define "test"}}foo{{end}}`); err != nil {
|
||||
t.Fatalf("parse 1: %v", err)
|
||||
}
|
||||
if _, err = tmpl.Parse(`{{define "test"}}bar{{end}}`); err == nil {
|
||||
t.Fatal("expected error")
|
||||
}
|
||||
if !strings.Contains(err.Error(), "redefinition") {
|
||||
t.Fatalf("expected redefinition error; got %v", err)
|
||||
}
|
||||
if _, err = tmpl.New("tmpl2").Parse(`{{define "test"}}bar{{end}}`); err == nil {
|
||||
t.Fatal("expected error")
|
||||
}
|
||||
if !strings.Contains(err.Error(), "redefinition") {
|
||||
t.Fatalf("expected redefinition error; got %v", err)
|
||||
}
|
||||
}
|
||||
-556
@@ -1,556 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package parse
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strings"
|
||||
"unicode"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
// item represents a token or text string returned from the scanner.
|
||||
type item struct {
|
||||
typ itemType // The type of this item.
|
||||
pos Pos // The starting position, in bytes, of this item in the input string.
|
||||
val string // The value of this item.
|
||||
}
|
||||
|
||||
func (i item) String() string {
|
||||
switch {
|
||||
case i.typ == itemEOF:
|
||||
return "EOF"
|
||||
case i.typ == itemError:
|
||||
return i.val
|
||||
case i.typ > itemKeyword:
|
||||
return fmt.Sprintf("<%s>", i.val)
|
||||
case len(i.val) > 10:
|
||||
return fmt.Sprintf("%.10q...", i.val)
|
||||
}
|
||||
return fmt.Sprintf("%q", i.val)
|
||||
}
|
||||
|
||||
// itemType identifies the type of lex items.
|
||||
type itemType int
|
||||
|
||||
const (
|
||||
itemError itemType = iota // error occurred; value is text of error
|
||||
itemBool // boolean constant
|
||||
itemChar // printable ASCII character; grab bag for comma etc.
|
||||
itemCharConstant // character constant
|
||||
itemComplex // complex constant (1+2i); imaginary is just a number
|
||||
itemColonEquals // colon-equals (':=') introducing a declaration
|
||||
itemEOF
|
||||
itemField // alphanumeric identifier starting with '.'
|
||||
itemIdentifier // alphanumeric identifier not starting with '.'
|
||||
itemLeftDelim // left action delimiter
|
||||
itemLeftParen // '(' inside action
|
||||
itemNumber // simple number, including imaginary
|
||||
itemPipe // pipe symbol
|
||||
itemRawString // raw quoted string (includes quotes)
|
||||
itemRightDelim // right action delimiter
|
||||
itemElideNewline // elide newline after right delim
|
||||
itemRightParen // ')' inside action
|
||||
itemSpace // run of spaces separating arguments
|
||||
itemString // quoted string (includes quotes)
|
||||
itemText // plain text
|
||||
itemVariable // variable starting with '$', such as '$' or '$1' or '$hello'
|
||||
// Keywords appear after all the rest.
|
||||
itemKeyword // used only to delimit the keywords
|
||||
itemDot // the cursor, spelled '.'
|
||||
itemDefine // define keyword
|
||||
itemElse // else keyword
|
||||
itemEnd // end keyword
|
||||
itemIf // if keyword
|
||||
itemNil // the untyped nil constant, easiest to treat as a keyword
|
||||
itemRange // range keyword
|
||||
itemTemplate // template keyword
|
||||
itemWith // with keyword
|
||||
)
|
||||
|
||||
var key = map[string]itemType{
|
||||
".": itemDot,
|
||||
"define": itemDefine,
|
||||
"else": itemElse,
|
||||
"end": itemEnd,
|
||||
"if": itemIf,
|
||||
"range": itemRange,
|
||||
"nil": itemNil,
|
||||
"template": itemTemplate,
|
||||
"with": itemWith,
|
||||
}
|
||||
|
||||
const eof = -1
|
||||
|
||||
// stateFn represents the state of the scanner as a function that returns the next state.
|
||||
type stateFn func(*lexer) stateFn
|
||||
|
||||
// lexer holds the state of the scanner.
|
||||
type lexer struct {
|
||||
name string // the name of the input; used only for error reports
|
||||
input string // the string being scanned
|
||||
leftDelim string // start of action
|
||||
rightDelim string // end of action
|
||||
state stateFn // the next lexing function to enter
|
||||
pos Pos // current position in the input
|
||||
start Pos // start position of this item
|
||||
width Pos // width of last rune read from input
|
||||
lastPos Pos // position of most recent item returned by nextItem
|
||||
items chan item // channel of scanned items
|
||||
parenDepth int // nesting depth of ( ) exprs
|
||||
}
|
||||
|
||||
// next returns the next rune in the input.
|
||||
func (l *lexer) next() rune {
|
||||
if int(l.pos) >= len(l.input) {
|
||||
l.width = 0
|
||||
return eof
|
||||
}
|
||||
r, w := utf8.DecodeRuneInString(l.input[l.pos:])
|
||||
l.width = Pos(w)
|
||||
l.pos += l.width
|
||||
return r
|
||||
}
|
||||
|
||||
// peek returns but does not consume the next rune in the input.
|
||||
func (l *lexer) peek() rune {
|
||||
r := l.next()
|
||||
l.backup()
|
||||
return r
|
||||
}
|
||||
|
||||
// backup steps back one rune. Can only be called once per call of next.
|
||||
func (l *lexer) backup() {
|
||||
l.pos -= l.width
|
||||
}
|
||||
|
||||
// emit passes an item back to the client.
|
||||
func (l *lexer) emit(t itemType) {
|
||||
l.items <- item{t, l.start, l.input[l.start:l.pos]}
|
||||
l.start = l.pos
|
||||
}
|
||||
|
||||
// ignore skips over the pending input before this point.
|
||||
func (l *lexer) ignore() {
|
||||
l.start = l.pos
|
||||
}
|
||||
|
||||
// accept consumes the next rune if it's from the valid set.
|
||||
func (l *lexer) accept(valid string) bool {
|
||||
if strings.IndexRune(valid, l.next()) >= 0 {
|
||||
return true
|
||||
}
|
||||
l.backup()
|
||||
return false
|
||||
}
|
||||
|
||||
// acceptRun consumes a run of runes from the valid set.
|
||||
func (l *lexer) acceptRun(valid string) {
|
||||
for strings.IndexRune(valid, l.next()) >= 0 {
|
||||
}
|
||||
l.backup()
|
||||
}
|
||||
|
||||
// lineNumber reports which line we're on, based on the position of
|
||||
// the previous item returned by nextItem. Doing it this way
|
||||
// means we don't have to worry about peek double counting.
|
||||
func (l *lexer) lineNumber() int {
|
||||
return 1 + strings.Count(l.input[:l.lastPos], "\n")
|
||||
}
|
||||
|
||||
// errorf returns an error token and terminates the scan by passing
|
||||
// back a nil pointer that will be the next state, terminating l.nextItem.
|
||||
func (l *lexer) errorf(format string, args ...interface{}) stateFn {
|
||||
l.items <- item{itemError, l.start, fmt.Sprintf(format, args...)}
|
||||
return nil
|
||||
}
|
||||
|
||||
// nextItem returns the next item from the input.
|
||||
func (l *lexer) nextItem() item {
|
||||
item := <-l.items
|
||||
l.lastPos = item.pos
|
||||
return item
|
||||
}
|
||||
|
||||
// lex creates a new scanner for the input string.
|
||||
func lex(name, input, left, right string) *lexer {
|
||||
if left == "" {
|
||||
left = leftDelim
|
||||
}
|
||||
if right == "" {
|
||||
right = rightDelim
|
||||
}
|
||||
l := &lexer{
|
||||
name: name,
|
||||
input: input,
|
||||
leftDelim: left,
|
||||
rightDelim: right,
|
||||
items: make(chan item),
|
||||
}
|
||||
go l.run()
|
||||
return l
|
||||
}
|
||||
|
||||
// run runs the state machine for the lexer.
|
||||
func (l *lexer) run() {
|
||||
for l.state = lexText; l.state != nil; {
|
||||
l.state = l.state(l)
|
||||
}
|
||||
}
|
||||
|
||||
// state functions
|
||||
|
||||
const (
|
||||
leftDelim = "{{"
|
||||
rightDelim = "}}"
|
||||
leftComment = "/*"
|
||||
rightComment = "*/"
|
||||
)
|
||||
|
||||
// lexText scans until an opening action delimiter, "{{".
|
||||
func lexText(l *lexer) stateFn {
|
||||
for {
|
||||
if strings.HasPrefix(l.input[l.pos:], l.leftDelim) {
|
||||
if l.pos > l.start {
|
||||
l.emit(itemText)
|
||||
}
|
||||
return lexLeftDelim
|
||||
}
|
||||
if l.next() == eof {
|
||||
break
|
||||
}
|
||||
}
|
||||
// Correctly reached EOF.
|
||||
if l.pos > l.start {
|
||||
l.emit(itemText)
|
||||
}
|
||||
l.emit(itemEOF)
|
||||
return nil
|
||||
}
|
||||
|
||||
// lexLeftDelim scans the left delimiter, which is known to be present.
|
||||
func lexLeftDelim(l *lexer) stateFn {
|
||||
l.pos += Pos(len(l.leftDelim))
|
||||
if strings.HasPrefix(l.input[l.pos:], leftComment) {
|
||||
return lexComment
|
||||
}
|
||||
l.emit(itemLeftDelim)
|
||||
l.parenDepth = 0
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
// lexComment scans a comment. The left comment marker is known to be present.
|
||||
func lexComment(l *lexer) stateFn {
|
||||
l.pos += Pos(len(leftComment))
|
||||
i := strings.Index(l.input[l.pos:], rightComment)
|
||||
if i < 0 {
|
||||
return l.errorf("unclosed comment")
|
||||
}
|
||||
l.pos += Pos(i + len(rightComment))
|
||||
if !strings.HasPrefix(l.input[l.pos:], l.rightDelim) {
|
||||
return l.errorf("comment ends before closing delimiter")
|
||||
|
||||
}
|
||||
l.pos += Pos(len(l.rightDelim))
|
||||
l.ignore()
|
||||
return lexText
|
||||
}
|
||||
|
||||
// lexRightDelim scans the right delimiter, which is known to be present.
|
||||
func lexRightDelim(l *lexer) stateFn {
|
||||
l.pos += Pos(len(l.rightDelim))
|
||||
l.emit(itemRightDelim)
|
||||
if l.peek() == '\\' {
|
||||
l.pos++
|
||||
l.emit(itemElideNewline)
|
||||
}
|
||||
return lexText
|
||||
}
|
||||
|
||||
// lexInsideAction scans the elements inside action delimiters.
|
||||
func lexInsideAction(l *lexer) stateFn {
|
||||
// Either number, quoted string, or identifier.
|
||||
// Spaces separate arguments; runs of spaces turn into itemSpace.
|
||||
// Pipe symbols separate and are emitted.
|
||||
if strings.HasPrefix(l.input[l.pos:], l.rightDelim+"\\") || strings.HasPrefix(l.input[l.pos:], l.rightDelim) {
|
||||
if l.parenDepth == 0 {
|
||||
return lexRightDelim
|
||||
}
|
||||
return l.errorf("unclosed left paren")
|
||||
}
|
||||
switch r := l.next(); {
|
||||
case r == eof || isEndOfLine(r):
|
||||
return l.errorf("unclosed action")
|
||||
case isSpace(r):
|
||||
return lexSpace
|
||||
case r == ':':
|
||||
if l.next() != '=' {
|
||||
return l.errorf("expected :=")
|
||||
}
|
||||
l.emit(itemColonEquals)
|
||||
case r == '|':
|
||||
l.emit(itemPipe)
|
||||
case r == '"':
|
||||
return lexQuote
|
||||
case r == '`':
|
||||
return lexRawQuote
|
||||
case r == '$':
|
||||
return lexVariable
|
||||
case r == '\'':
|
||||
return lexChar
|
||||
case r == '.':
|
||||
// special look-ahead for ".field" so we don't break l.backup().
|
||||
if l.pos < Pos(len(l.input)) {
|
||||
r := l.input[l.pos]
|
||||
if r < '0' || '9' < r {
|
||||
return lexField
|
||||
}
|
||||
}
|
||||
fallthrough // '.' can start a number.
|
||||
case r == '+' || r == '-' || ('0' <= r && r <= '9'):
|
||||
l.backup()
|
||||
return lexNumber
|
||||
case isAlphaNumeric(r):
|
||||
l.backup()
|
||||
return lexIdentifier
|
||||
case r == '(':
|
||||
l.emit(itemLeftParen)
|
||||
l.parenDepth++
|
||||
return lexInsideAction
|
||||
case r == ')':
|
||||
l.emit(itemRightParen)
|
||||
l.parenDepth--
|
||||
if l.parenDepth < 0 {
|
||||
return l.errorf("unexpected right paren %#U", r)
|
||||
}
|
||||
return lexInsideAction
|
||||
case r <= unicode.MaxASCII && unicode.IsPrint(r):
|
||||
l.emit(itemChar)
|
||||
return lexInsideAction
|
||||
default:
|
||||
return l.errorf("unrecognized character in action: %#U", r)
|
||||
}
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
// lexSpace scans a run of space characters.
|
||||
// One space has already been seen.
|
||||
func lexSpace(l *lexer) stateFn {
|
||||
for isSpace(l.peek()) {
|
||||
l.next()
|
||||
}
|
||||
l.emit(itemSpace)
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
// lexIdentifier scans an alphanumeric.
|
||||
func lexIdentifier(l *lexer) stateFn {
|
||||
Loop:
|
||||
for {
|
||||
switch r := l.next(); {
|
||||
case isAlphaNumeric(r):
|
||||
// absorb.
|
||||
default:
|
||||
l.backup()
|
||||
word := l.input[l.start:l.pos]
|
||||
if !l.atTerminator() {
|
||||
return l.errorf("bad character %#U", r)
|
||||
}
|
||||
switch {
|
||||
case key[word] > itemKeyword:
|
||||
l.emit(key[word])
|
||||
case word[0] == '.':
|
||||
l.emit(itemField)
|
||||
case word == "true", word == "false":
|
||||
l.emit(itemBool)
|
||||
default:
|
||||
l.emit(itemIdentifier)
|
||||
}
|
||||
break Loop
|
||||
}
|
||||
}
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
// lexField scans a field: .Alphanumeric.
|
||||
// The . has been scanned.
|
||||
func lexField(l *lexer) stateFn {
|
||||
return lexFieldOrVariable(l, itemField)
|
||||
}
|
||||
|
||||
// lexVariable scans a Variable: $Alphanumeric.
|
||||
// The $ has been scanned.
|
||||
func lexVariable(l *lexer) stateFn {
|
||||
if l.atTerminator() { // Nothing interesting follows -> "$".
|
||||
l.emit(itemVariable)
|
||||
return lexInsideAction
|
||||
}
|
||||
return lexFieldOrVariable(l, itemVariable)
|
||||
}
|
||||
|
||||
// lexVariable scans a field or variable: [.$]Alphanumeric.
|
||||
// The . or $ has been scanned.
|
||||
func lexFieldOrVariable(l *lexer, typ itemType) stateFn {
|
||||
if l.atTerminator() { // Nothing interesting follows -> "." or "$".
|
||||
if typ == itemVariable {
|
||||
l.emit(itemVariable)
|
||||
} else {
|
||||
l.emit(itemDot)
|
||||
}
|
||||
return lexInsideAction
|
||||
}
|
||||
var r rune
|
||||
for {
|
||||
r = l.next()
|
||||
if !isAlphaNumeric(r) {
|
||||
l.backup()
|
||||
break
|
||||
}
|
||||
}
|
||||
if !l.atTerminator() {
|
||||
return l.errorf("bad character %#U", r)
|
||||
}
|
||||
l.emit(typ)
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
// atTerminator reports whether the input is at valid termination character to
|
||||
// appear after an identifier. Breaks .X.Y into two pieces. Also catches cases
|
||||
// like "$x+2" not being acceptable without a space, in case we decide one
|
||||
// day to implement arithmetic.
|
||||
func (l *lexer) atTerminator() bool {
|
||||
r := l.peek()
|
||||
if isSpace(r) || isEndOfLine(r) {
|
||||
return true
|
||||
}
|
||||
switch r {
|
||||
case eof, '.', ',', '|', ':', ')', '(':
|
||||
return true
|
||||
}
|
||||
// Does r start the delimiter? This can be ambiguous (with delim=="//", $x/2 will
|
||||
// succeed but should fail) but only in extremely rare cases caused by willfully
|
||||
// bad choice of delimiter.
|
||||
if rd, _ := utf8.DecodeRuneInString(l.rightDelim); rd == r {
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// lexChar scans a character constant. The initial quote is already
|
||||
// scanned. Syntax checking is done by the parser.
|
||||
func lexChar(l *lexer) stateFn {
|
||||
Loop:
|
||||
for {
|
||||
switch l.next() {
|
||||
case '\\':
|
||||
if r := l.next(); r != eof && r != '\n' {
|
||||
break
|
||||
}
|
||||
fallthrough
|
||||
case eof, '\n':
|
||||
return l.errorf("unterminated character constant")
|
||||
case '\'':
|
||||
break Loop
|
||||
}
|
||||
}
|
||||
l.emit(itemCharConstant)
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
// lexNumber scans a number: decimal, octal, hex, float, or imaginary. This
|
||||
// isn't a perfect number scanner - for instance it accepts "." and "0x0.2"
|
||||
// and "089" - but when it's wrong the input is invalid and the parser (via
|
||||
// strconv) will notice.
|
||||
func lexNumber(l *lexer) stateFn {
|
||||
if !l.scanNumber() {
|
||||
return l.errorf("bad number syntax: %q", l.input[l.start:l.pos])
|
||||
}
|
||||
if sign := l.peek(); sign == '+' || sign == '-' {
|
||||
// Complex: 1+2i. No spaces, must end in 'i'.
|
||||
if !l.scanNumber() || l.input[l.pos-1] != 'i' {
|
||||
return l.errorf("bad number syntax: %q", l.input[l.start:l.pos])
|
||||
}
|
||||
l.emit(itemComplex)
|
||||
} else {
|
||||
l.emit(itemNumber)
|
||||
}
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
func (l *lexer) scanNumber() bool {
|
||||
// Optional leading sign.
|
||||
l.accept("+-")
|
||||
// Is it hex?
|
||||
digits := "0123456789"
|
||||
if l.accept("0") && l.accept("xX") {
|
||||
digits = "0123456789abcdefABCDEF"
|
||||
}
|
||||
l.acceptRun(digits)
|
||||
if l.accept(".") {
|
||||
l.acceptRun(digits)
|
||||
}
|
||||
if l.accept("eE") {
|
||||
l.accept("+-")
|
||||
l.acceptRun("0123456789")
|
||||
}
|
||||
// Is it imaginary?
|
||||
l.accept("i")
|
||||
// Next thing mustn't be alphanumeric.
|
||||
if isAlphaNumeric(l.peek()) {
|
||||
l.next()
|
||||
return false
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// lexQuote scans a quoted string.
|
||||
func lexQuote(l *lexer) stateFn {
|
||||
Loop:
|
||||
for {
|
||||
switch l.next() {
|
||||
case '\\':
|
||||
if r := l.next(); r != eof && r != '\n' {
|
||||
break
|
||||
}
|
||||
fallthrough
|
||||
case eof, '\n':
|
||||
return l.errorf("unterminated quoted string")
|
||||
case '"':
|
||||
break Loop
|
||||
}
|
||||
}
|
||||
l.emit(itemString)
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
// lexRawQuote scans a raw quoted string.
|
||||
func lexRawQuote(l *lexer) stateFn {
|
||||
Loop:
|
||||
for {
|
||||
switch l.next() {
|
||||
case eof, '\n':
|
||||
return l.errorf("unterminated raw quoted string")
|
||||
case '`':
|
||||
break Loop
|
||||
}
|
||||
}
|
||||
l.emit(itemRawString)
|
||||
return lexInsideAction
|
||||
}
|
||||
|
||||
// isSpace reports whether r is a space character.
|
||||
func isSpace(r rune) bool {
|
||||
return r == ' ' || r == '\t'
|
||||
}
|
||||
|
||||
// isEndOfLine reports whether r is an end-of-line character.
|
||||
func isEndOfLine(r rune) bool {
|
||||
return r == '\r' || r == '\n'
|
||||
}
|
||||
|
||||
// isAlphaNumeric reports whether r is an alphabetic, digit, or underscore.
|
||||
func isAlphaNumeric(r rune) bool {
|
||||
return r == '_' || unicode.IsLetter(r) || unicode.IsDigit(r)
|
||||
}
|
||||
-468
@@ -1,468 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package parse
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"testing"
|
||||
)
|
||||
|
||||
// Make the types prettyprint.
|
||||
var itemName = map[itemType]string{
|
||||
itemError: "error",
|
||||
itemBool: "bool",
|
||||
itemChar: "char",
|
||||
itemCharConstant: "charconst",
|
||||
itemComplex: "complex",
|
||||
itemColonEquals: ":=",
|
||||
itemEOF: "EOF",
|
||||
itemField: "field",
|
||||
itemIdentifier: "identifier",
|
||||
itemLeftDelim: "left delim",
|
||||
itemLeftParen: "(",
|
||||
itemNumber: "number",
|
||||
itemPipe: "pipe",
|
||||
itemRawString: "raw string",
|
||||
itemRightDelim: "right delim",
|
||||
itemElideNewline: "elide newline",
|
||||
itemRightParen: ")",
|
||||
itemSpace: "space",
|
||||
itemString: "string",
|
||||
itemVariable: "variable",
|
||||
|
||||
// keywords
|
||||
itemDot: ".",
|
||||
itemDefine: "define",
|
||||
itemElse: "else",
|
||||
itemIf: "if",
|
||||
itemEnd: "end",
|
||||
itemNil: "nil",
|
||||
itemRange: "range",
|
||||
itemTemplate: "template",
|
||||
itemWith: "with",
|
||||
}
|
||||
|
||||
func (i itemType) String() string {
|
||||
s := itemName[i]
|
||||
if s == "" {
|
||||
return fmt.Sprintf("item%d", int(i))
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
type lexTest struct {
|
||||
name string
|
||||
input string
|
||||
items []item
|
||||
}
|
||||
|
||||
var (
|
||||
tEOF = item{itemEOF, 0, ""}
|
||||
tFor = item{itemIdentifier, 0, "for"}
|
||||
tLeft = item{itemLeftDelim, 0, "{{"}
|
||||
tLpar = item{itemLeftParen, 0, "("}
|
||||
tPipe = item{itemPipe, 0, "|"}
|
||||
tQuote = item{itemString, 0, `"abc \n\t\" "`}
|
||||
tRange = item{itemRange, 0, "range"}
|
||||
tRight = item{itemRightDelim, 0, "}}"}
|
||||
tElideNewline = item{itemElideNewline, 0, "\\"}
|
||||
tRpar = item{itemRightParen, 0, ")"}
|
||||
tSpace = item{itemSpace, 0, " "}
|
||||
raw = "`" + `abc\n\t\" ` + "`"
|
||||
tRawQuote = item{itemRawString, 0, raw}
|
||||
)
|
||||
|
||||
var lexTests = []lexTest{
|
||||
{"empty", "", []item{tEOF}},
|
||||
{"spaces", " \t\n", []item{{itemText, 0, " \t\n"}, tEOF}},
|
||||
{"text", `now is the time`, []item{{itemText, 0, "now is the time"}, tEOF}},
|
||||
{"elide newline", "{{}}\\", []item{tLeft, tRight, tElideNewline, tEOF}},
|
||||
{"text with comment", "hello-{{/* this is a comment */}}-world", []item{
|
||||
{itemText, 0, "hello-"},
|
||||
{itemText, 0, "-world"},
|
||||
tEOF,
|
||||
}},
|
||||
{"punctuation", "{{,@% }}", []item{
|
||||
tLeft,
|
||||
{itemChar, 0, ","},
|
||||
{itemChar, 0, "@"},
|
||||
{itemChar, 0, "%"},
|
||||
tSpace,
|
||||
tRight,
|
||||
tEOF,
|
||||
}},
|
||||
{"parens", "{{((3))}}", []item{
|
||||
tLeft,
|
||||
tLpar,
|
||||
tLpar,
|
||||
{itemNumber, 0, "3"},
|
||||
tRpar,
|
||||
tRpar,
|
||||
tRight,
|
||||
tEOF,
|
||||
}},
|
||||
{"empty action", `{{}}`, []item{tLeft, tRight, tEOF}},
|
||||
{"for", `{{for}}`, []item{tLeft, tFor, tRight, tEOF}},
|
||||
{"quote", `{{"abc \n\t\" "}}`, []item{tLeft, tQuote, tRight, tEOF}},
|
||||
{"raw quote", "{{" + raw + "}}", []item{tLeft, tRawQuote, tRight, tEOF}},
|
||||
{"numbers", "{{1 02 0x14 -7.2i 1e3 +1.2e-4 4.2i 1+2i}}", []item{
|
||||
tLeft,
|
||||
{itemNumber, 0, "1"},
|
||||
tSpace,
|
||||
{itemNumber, 0, "02"},
|
||||
tSpace,
|
||||
{itemNumber, 0, "0x14"},
|
||||
tSpace,
|
||||
{itemNumber, 0, "-7.2i"},
|
||||
tSpace,
|
||||
{itemNumber, 0, "1e3"},
|
||||
tSpace,
|
||||
{itemNumber, 0, "+1.2e-4"},
|
||||
tSpace,
|
||||
{itemNumber, 0, "4.2i"},
|
||||
tSpace,
|
||||
{itemComplex, 0, "1+2i"},
|
||||
tRight,
|
||||
tEOF,
|
||||
}},
|
||||
{"characters", `{{'a' '\n' '\'' '\\' '\u00FF' '\xFF' '本'}}`, []item{
|
||||
tLeft,
|
||||
{itemCharConstant, 0, `'a'`},
|
||||
tSpace,
|
||||
{itemCharConstant, 0, `'\n'`},
|
||||
tSpace,
|
||||
{itemCharConstant, 0, `'\''`},
|
||||
tSpace,
|
||||
{itemCharConstant, 0, `'\\'`},
|
||||
tSpace,
|
||||
{itemCharConstant, 0, `'\u00FF'`},
|
||||
tSpace,
|
||||
{itemCharConstant, 0, `'\xFF'`},
|
||||
tSpace,
|
||||
{itemCharConstant, 0, `'本'`},
|
||||
tRight,
|
||||
tEOF,
|
||||
}},
|
||||
{"bools", "{{true false}}", []item{
|
||||
tLeft,
|
||||
{itemBool, 0, "true"},
|
||||
tSpace,
|
||||
{itemBool, 0, "false"},
|
||||
tRight,
|
||||
tEOF,
|
||||
}},
|
||||
{"dot", "{{.}}", []item{
|
||||
tLeft,
|
||||
{itemDot, 0, "."},
|
||||
tRight,
|
||||
tEOF,
|
||||
}},
|
||||
{"nil", "{{nil}}", []item{
|
||||
tLeft,
|
||||
{itemNil, 0, "nil"},
|
||||
tRight,
|
||||
tEOF,
|
||||
}},
|
||||
{"dots", "{{.x . .2 .x.y.z}}", []item{
|
||||
tLeft,
|
||||
{itemField, 0, ".x"},
|
||||
tSpace,
|
||||
{itemDot, 0, "."},
|
||||
tSpace,
|
||||
{itemNumber, 0, ".2"},
|
||||
tSpace,
|
||||
{itemField, 0, ".x"},
|
||||
{itemField, 0, ".y"},
|
||||
{itemField, 0, ".z"},
|
||||
tRight,
|
||||
tEOF,
|
||||
}},
|
||||
{"keywords", "{{range if else end with}}", []item{
|
||||
tLeft,
|
||||
{itemRange, 0, "range"},
|
||||
tSpace,
|
||||
{itemIf, 0, "if"},
|
||||
tSpace,
|
||||
{itemElse, 0, "else"},
|
||||
tSpace,
|
||||
{itemEnd, 0, "end"},
|
||||
tSpace,
|
||||
{itemWith, 0, "with"},
|
||||
tRight,
|
||||
tEOF,
|
||||
}},
|
||||
{"variables", "{{$c := printf $ $hello $23 $ $var.Field .Method}}", []item{
|
||||
tLeft,
|
||||
{itemVariable, 0, "$c"},
|
||||
tSpace,
|
||||
{itemColonEquals, 0, ":="},
|
||||
tSpace,
|
||||
{itemIdentifier, 0, "printf"},
|
||||
tSpace,
|
||||
{itemVariable, 0, "$"},
|
||||
tSpace,
|
||||
{itemVariable, 0, "$hello"},
|
||||
tSpace,
|
||||
{itemVariable, 0, "$23"},
|
||||
tSpace,
|
||||
{itemVariable, 0, "$"},
|
||||
tSpace,
|
||||
{itemVariable, 0, "$var"},
|
||||
{itemField, 0, ".Field"},
|
||||
tSpace,
|
||||
{itemField, 0, ".Method"},
|
||||
tRight,
|
||||
tEOF,
|
||||
}},
|
||||
{"variable invocation", "{{$x 23}}", []item{
|
||||
tLeft,
|
||||
{itemVariable, 0, "$x"},
|
||||
tSpace,
|
||||
{itemNumber, 0, "23"},
|
||||
tRight,
|
||||
tEOF,
|
||||
}},
|
||||
{"pipeline", `intro {{echo hi 1.2 |noargs|args 1 "hi"}} outro`, []item{
|
||||
{itemText, 0, "intro "},
|
||||
tLeft,
|
||||
{itemIdentifier, 0, "echo"},
|
||||
tSpace,
|
||||
{itemIdentifier, 0, "hi"},
|
||||
tSpace,
|
||||
{itemNumber, 0, "1.2"},
|
||||
tSpace,
|
||||
tPipe,
|
||||
{itemIdentifier, 0, "noargs"},
|
||||
tPipe,
|
||||
{itemIdentifier, 0, "args"},
|
||||
tSpace,
|
||||
{itemNumber, 0, "1"},
|
||||
tSpace,
|
||||
{itemString, 0, `"hi"`},
|
||||
tRight,
|
||||
{itemText, 0, " outro"},
|
||||
tEOF,
|
||||
}},
|
||||
{"declaration", "{{$v := 3}}", []item{
|
||||
tLeft,
|
||||
{itemVariable, 0, "$v"},
|
||||
tSpace,
|
||||
{itemColonEquals, 0, ":="},
|
||||
tSpace,
|
||||
{itemNumber, 0, "3"},
|
||||
tRight,
|
||||
tEOF,
|
||||
}},
|
||||
{"2 declarations", "{{$v , $w := 3}}", []item{
|
||||
tLeft,
|
||||
{itemVariable, 0, "$v"},
|
||||
tSpace,
|
||||
{itemChar, 0, ","},
|
||||
tSpace,
|
||||
{itemVariable, 0, "$w"},
|
||||
tSpace,
|
||||
{itemColonEquals, 0, ":="},
|
||||
tSpace,
|
||||
{itemNumber, 0, "3"},
|
||||
tRight,
|
||||
tEOF,
|
||||
}},
|
||||
{"field of parenthesized expression", "{{(.X).Y}}", []item{
|
||||
tLeft,
|
||||
tLpar,
|
||||
{itemField, 0, ".X"},
|
||||
tRpar,
|
||||
{itemField, 0, ".Y"},
|
||||
tRight,
|
||||
tEOF,
|
||||
}},
|
||||
// errors
|
||||
{"badchar", "#{{\x01}}", []item{
|
||||
{itemText, 0, "#"},
|
||||
tLeft,
|
||||
{itemError, 0, "unrecognized character in action: U+0001"},
|
||||
}},
|
||||
{"unclosed action", "{{\n}}", []item{
|
||||
tLeft,
|
||||
{itemError, 0, "unclosed action"},
|
||||
}},
|
||||
{"EOF in action", "{{range", []item{
|
||||
tLeft,
|
||||
tRange,
|
||||
{itemError, 0, "unclosed action"},
|
||||
}},
|
||||
{"unclosed quote", "{{\"\n\"}}", []item{
|
||||
tLeft,
|
||||
{itemError, 0, "unterminated quoted string"},
|
||||
}},
|
||||
{"unclosed raw quote", "{{`xx\n`}}", []item{
|
||||
tLeft,
|
||||
{itemError, 0, "unterminated raw quoted string"},
|
||||
}},
|
||||
{"unclosed char constant", "{{'\n}}", []item{
|
||||
tLeft,
|
||||
{itemError, 0, "unterminated character constant"},
|
||||
}},
|
||||
{"bad number", "{{3k}}", []item{
|
||||
tLeft,
|
||||
{itemError, 0, `bad number syntax: "3k"`},
|
||||
}},
|
||||
{"unclosed paren", "{{(3}}", []item{
|
||||
tLeft,
|
||||
tLpar,
|
||||
{itemNumber, 0, "3"},
|
||||
{itemError, 0, `unclosed left paren`},
|
||||
}},
|
||||
{"extra right paren", "{{3)}}", []item{
|
||||
tLeft,
|
||||
{itemNumber, 0, "3"},
|
||||
tRpar,
|
||||
{itemError, 0, `unexpected right paren U+0029 ')'`},
|
||||
}},
|
||||
|
||||
// Fixed bugs
|
||||
// Many elements in an action blew the lookahead until
|
||||
// we made lexInsideAction not loop.
|
||||
{"long pipeline deadlock", "{{|||||}}", []item{
|
||||
tLeft,
|
||||
tPipe,
|
||||
tPipe,
|
||||
tPipe,
|
||||
tPipe,
|
||||
tPipe,
|
||||
tRight,
|
||||
tEOF,
|
||||
}},
|
||||
{"text with bad comment", "hello-{{/*/}}-world", []item{
|
||||
{itemText, 0, "hello-"},
|
||||
{itemError, 0, `unclosed comment`},
|
||||
}},
|
||||
{"text with comment close separted from delim", "hello-{{/* */ }}-world", []item{
|
||||
{itemText, 0, "hello-"},
|
||||
{itemError, 0, `comment ends before closing delimiter`},
|
||||
}},
|
||||
// This one is an error that we can't catch because it breaks templates with
|
||||
// minimized JavaScript. Should have fixed it before Go 1.1.
|
||||
{"unmatched right delimiter", "hello-{.}}-world", []item{
|
||||
{itemText, 0, "hello-{.}}-world"},
|
||||
tEOF,
|
||||
}},
|
||||
}
|
||||
|
||||
// collect gathers the emitted items into a slice.
|
||||
func collect(t *lexTest, left, right string) (items []item) {
|
||||
l := lex(t.name, t.input, left, right)
|
||||
for {
|
||||
item := l.nextItem()
|
||||
items = append(items, item)
|
||||
if item.typ == itemEOF || item.typ == itemError {
|
||||
break
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func equal(i1, i2 []item, checkPos bool) bool {
|
||||
if len(i1) != len(i2) {
|
||||
return false
|
||||
}
|
||||
for k := range i1 {
|
||||
if i1[k].typ != i2[k].typ {
|
||||
return false
|
||||
}
|
||||
if i1[k].val != i2[k].val {
|
||||
return false
|
||||
}
|
||||
if checkPos && i1[k].pos != i2[k].pos {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
func TestLex(t *testing.T) {
|
||||
for _, test := range lexTests {
|
||||
items := collect(&test, "", "")
|
||||
if !equal(items, test.items, false) {
|
||||
t.Errorf("%s: got\n\t%+v\nexpected\n\t%v", test.name, items, test.items)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Some easy cases from above, but with delimiters $$ and @@
|
||||
var lexDelimTests = []lexTest{
|
||||
{"punctuation", "$$,@%{{}}@@", []item{
|
||||
tLeftDelim,
|
||||
{itemChar, 0, ","},
|
||||
{itemChar, 0, "@"},
|
||||
{itemChar, 0, "%"},
|
||||
{itemChar, 0, "{"},
|
||||
{itemChar, 0, "{"},
|
||||
{itemChar, 0, "}"},
|
||||
{itemChar, 0, "}"},
|
||||
tRightDelim,
|
||||
tEOF,
|
||||
}},
|
||||
{"empty action", `$$@@`, []item{tLeftDelim, tRightDelim, tEOF}},
|
||||
{"for", `$$for@@`, []item{tLeftDelim, tFor, tRightDelim, tEOF}},
|
||||
{"quote", `$$"abc \n\t\" "@@`, []item{tLeftDelim, tQuote, tRightDelim, tEOF}},
|
||||
{"raw quote", "$$" + raw + "@@", []item{tLeftDelim, tRawQuote, tRightDelim, tEOF}},
|
||||
}
|
||||
|
||||
var (
|
||||
tLeftDelim = item{itemLeftDelim, 0, "$$"}
|
||||
tRightDelim = item{itemRightDelim, 0, "@@"}
|
||||
)
|
||||
|
||||
func TestDelims(t *testing.T) {
|
||||
for _, test := range lexDelimTests {
|
||||
items := collect(&test, "$$", "@@")
|
||||
if !equal(items, test.items, false) {
|
||||
t.Errorf("%s: got\n\t%v\nexpected\n\t%v", test.name, items, test.items)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
var lexPosTests = []lexTest{
|
||||
{"empty", "", []item{tEOF}},
|
||||
{"punctuation", "{{,@%#}}", []item{
|
||||
{itemLeftDelim, 0, "{{"},
|
||||
{itemChar, 2, ","},
|
||||
{itemChar, 3, "@"},
|
||||
{itemChar, 4, "%"},
|
||||
{itemChar, 5, "#"},
|
||||
{itemRightDelim, 6, "}}"},
|
||||
{itemEOF, 8, ""},
|
||||
}},
|
||||
{"sample", "0123{{hello}}xyz", []item{
|
||||
{itemText, 0, "0123"},
|
||||
{itemLeftDelim, 4, "{{"},
|
||||
{itemIdentifier, 6, "hello"},
|
||||
{itemRightDelim, 11, "}}"},
|
||||
{itemText, 13, "xyz"},
|
||||
{itemEOF, 16, ""},
|
||||
}},
|
||||
}
|
||||
|
||||
// The other tests don't check position, to make the test cases easier to construct.
|
||||
// This one does.
|
||||
func TestPos(t *testing.T) {
|
||||
for _, test := range lexPosTests {
|
||||
items := collect(&test, "", "")
|
||||
if !equal(items, test.items, true) {
|
||||
t.Errorf("%s: got\n\t%v\nexpected\n\t%v", test.name, items, test.items)
|
||||
if len(items) == len(test.items) {
|
||||
// Detailed print; avoid item.String() to expose the position value.
|
||||
for i := range items {
|
||||
if !equal(items[i:i+1], test.items[i:i+1], true) {
|
||||
i1 := items[i]
|
||||
i2 := test.items[i]
|
||||
t.Errorf("\t#%d: got {%v %d %q} expected {%v %d %q}", i, i1.typ, i1.pos, i1.val, i2.typ, i2.pos, i2.val)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
-834
@@ -1,834 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Parse nodes.
|
||||
|
||||
package parse
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
var textFormat = "%s" // Changed to "%q" in tests for better error messages.
|
||||
|
||||
// A Node is an element in the parse tree. The interface is trivial.
|
||||
// The interface contains an unexported method so that only
|
||||
// types local to this package can satisfy it.
|
||||
type Node interface {
|
||||
Type() NodeType
|
||||
String() string
|
||||
// Copy does a deep copy of the Node and all its components.
|
||||
// To avoid type assertions, some XxxNodes also have specialized
|
||||
// CopyXxx methods that return *XxxNode.
|
||||
Copy() Node
|
||||
Position() Pos // byte position of start of node in full original input string
|
||||
// tree returns the containing *Tree.
|
||||
// It is unexported so all implementations of Node are in this package.
|
||||
tree() *Tree
|
||||
}
|
||||
|
||||
// NodeType identifies the type of a parse tree node.
|
||||
type NodeType int
|
||||
|
||||
// Pos represents a byte position in the original input text from which
|
||||
// this template was parsed.
|
||||
type Pos int
|
||||
|
||||
func (p Pos) Position() Pos {
|
||||
return p
|
||||
}
|
||||
|
||||
// Type returns itself and provides an easy default implementation
|
||||
// for embedding in a Node. Embedded in all non-trivial Nodes.
|
||||
func (t NodeType) Type() NodeType {
|
||||
return t
|
||||
}
|
||||
|
||||
const (
|
||||
NodeText NodeType = iota // Plain text.
|
||||
NodeAction // A non-control action such as a field evaluation.
|
||||
NodeBool // A boolean constant.
|
||||
NodeChain // A sequence of field accesses.
|
||||
NodeCommand // An element of a pipeline.
|
||||
NodeDot // The cursor, dot.
|
||||
nodeElse // An else action. Not added to tree.
|
||||
nodeEnd // An end action. Not added to tree.
|
||||
NodeField // A field or method name.
|
||||
NodeIdentifier // An identifier; always a function name.
|
||||
NodeIf // An if action.
|
||||
NodeList // A list of Nodes.
|
||||
NodeNil // An untyped nil constant.
|
||||
NodeNumber // A numerical constant.
|
||||
NodePipe // A pipeline of commands.
|
||||
NodeRange // A range action.
|
||||
NodeString // A string constant.
|
||||
NodeTemplate // A template invocation action.
|
||||
NodeVariable // A $ variable.
|
||||
NodeWith // A with action.
|
||||
)
|
||||
|
||||
// Nodes.
|
||||
|
||||
// ListNode holds a sequence of nodes.
|
||||
type ListNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Nodes []Node // The element nodes in lexical order.
|
||||
}
|
||||
|
||||
func (t *Tree) newList(pos Pos) *ListNode {
|
||||
return &ListNode{tr: t, NodeType: NodeList, Pos: pos}
|
||||
}
|
||||
|
||||
func (l *ListNode) append(n Node) {
|
||||
l.Nodes = append(l.Nodes, n)
|
||||
}
|
||||
|
||||
func (l *ListNode) tree() *Tree {
|
||||
return l.tr
|
||||
}
|
||||
|
||||
func (l *ListNode) String() string {
|
||||
b := new(bytes.Buffer)
|
||||
for _, n := range l.Nodes {
|
||||
fmt.Fprint(b, n)
|
||||
}
|
||||
return b.String()
|
||||
}
|
||||
|
||||
func (l *ListNode) CopyList() *ListNode {
|
||||
if l == nil {
|
||||
return l
|
||||
}
|
||||
n := l.tr.newList(l.Pos)
|
||||
for _, elem := range l.Nodes {
|
||||
n.append(elem.Copy())
|
||||
}
|
||||
return n
|
||||
}
|
||||
|
||||
func (l *ListNode) Copy() Node {
|
||||
return l.CopyList()
|
||||
}
|
||||
|
||||
// TextNode holds plain text.
|
||||
type TextNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Text []byte // The text; may span newlines.
|
||||
}
|
||||
|
||||
func (t *Tree) newText(pos Pos, text string) *TextNode {
|
||||
return &TextNode{tr: t, NodeType: NodeText, Pos: pos, Text: []byte(text)}
|
||||
}
|
||||
|
||||
func (t *TextNode) String() string {
|
||||
return fmt.Sprintf(textFormat, t.Text)
|
||||
}
|
||||
|
||||
func (t *TextNode) tree() *Tree {
|
||||
return t.tr
|
||||
}
|
||||
|
||||
func (t *TextNode) Copy() Node {
|
||||
return &TextNode{tr: t.tr, NodeType: NodeText, Pos: t.Pos, Text: append([]byte{}, t.Text...)}
|
||||
}
|
||||
|
||||
// PipeNode holds a pipeline with optional declaration
|
||||
type PipeNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Line int // The line number in the input (deprecated; kept for compatibility)
|
||||
Decl []*VariableNode // Variable declarations in lexical order.
|
||||
Cmds []*CommandNode // The commands in lexical order.
|
||||
}
|
||||
|
||||
func (t *Tree) newPipeline(pos Pos, line int, decl []*VariableNode) *PipeNode {
|
||||
return &PipeNode{tr: t, NodeType: NodePipe, Pos: pos, Line: line, Decl: decl}
|
||||
}
|
||||
|
||||
func (p *PipeNode) append(command *CommandNode) {
|
||||
p.Cmds = append(p.Cmds, command)
|
||||
}
|
||||
|
||||
func (p *PipeNode) String() string {
|
||||
s := ""
|
||||
if len(p.Decl) > 0 {
|
||||
for i, v := range p.Decl {
|
||||
if i > 0 {
|
||||
s += ", "
|
||||
}
|
||||
s += v.String()
|
||||
}
|
||||
s += " := "
|
||||
}
|
||||
for i, c := range p.Cmds {
|
||||
if i > 0 {
|
||||
s += " | "
|
||||
}
|
||||
s += c.String()
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
func (p *PipeNode) tree() *Tree {
|
||||
return p.tr
|
||||
}
|
||||
|
||||
func (p *PipeNode) CopyPipe() *PipeNode {
|
||||
if p == nil {
|
||||
return p
|
||||
}
|
||||
var decl []*VariableNode
|
||||
for _, d := range p.Decl {
|
||||
decl = append(decl, d.Copy().(*VariableNode))
|
||||
}
|
||||
n := p.tr.newPipeline(p.Pos, p.Line, decl)
|
||||
for _, c := range p.Cmds {
|
||||
n.append(c.Copy().(*CommandNode))
|
||||
}
|
||||
return n
|
||||
}
|
||||
|
||||
func (p *PipeNode) Copy() Node {
|
||||
return p.CopyPipe()
|
||||
}
|
||||
|
||||
// ActionNode holds an action (something bounded by delimiters).
|
||||
// Control actions have their own nodes; ActionNode represents simple
|
||||
// ones such as field evaluations and parenthesized pipelines.
|
||||
type ActionNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Line int // The line number in the input (deprecated; kept for compatibility)
|
||||
Pipe *PipeNode // The pipeline in the action.
|
||||
}
|
||||
|
||||
func (t *Tree) newAction(pos Pos, line int, pipe *PipeNode) *ActionNode {
|
||||
return &ActionNode{tr: t, NodeType: NodeAction, Pos: pos, Line: line, Pipe: pipe}
|
||||
}
|
||||
|
||||
func (a *ActionNode) String() string {
|
||||
return fmt.Sprintf("{{%s}}", a.Pipe)
|
||||
|
||||
}
|
||||
|
||||
func (a *ActionNode) tree() *Tree {
|
||||
return a.tr
|
||||
}
|
||||
|
||||
func (a *ActionNode) Copy() Node {
|
||||
return a.tr.newAction(a.Pos, a.Line, a.Pipe.CopyPipe())
|
||||
|
||||
}
|
||||
|
||||
// CommandNode holds a command (a pipeline inside an evaluating action).
|
||||
type CommandNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Args []Node // Arguments in lexical order: Identifier, field, or constant.
|
||||
}
|
||||
|
||||
func (t *Tree) newCommand(pos Pos) *CommandNode {
|
||||
return &CommandNode{tr: t, NodeType: NodeCommand, Pos: pos}
|
||||
}
|
||||
|
||||
func (c *CommandNode) append(arg Node) {
|
||||
c.Args = append(c.Args, arg)
|
||||
}
|
||||
|
||||
func (c *CommandNode) String() string {
|
||||
s := ""
|
||||
for i, arg := range c.Args {
|
||||
if i > 0 {
|
||||
s += " "
|
||||
}
|
||||
if arg, ok := arg.(*PipeNode); ok {
|
||||
s += "(" + arg.String() + ")"
|
||||
continue
|
||||
}
|
||||
s += arg.String()
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
func (c *CommandNode) tree() *Tree {
|
||||
return c.tr
|
||||
}
|
||||
|
||||
func (c *CommandNode) Copy() Node {
|
||||
if c == nil {
|
||||
return c
|
||||
}
|
||||
n := c.tr.newCommand(c.Pos)
|
||||
for _, c := range c.Args {
|
||||
n.append(c.Copy())
|
||||
}
|
||||
return n
|
||||
}
|
||||
|
||||
// IdentifierNode holds an identifier.
|
||||
type IdentifierNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Ident string // The identifier's name.
|
||||
}
|
||||
|
||||
// NewIdentifier returns a new IdentifierNode with the given identifier name.
|
||||
func NewIdentifier(ident string) *IdentifierNode {
|
||||
return &IdentifierNode{NodeType: NodeIdentifier, Ident: ident}
|
||||
}
|
||||
|
||||
// SetPos sets the position. NewIdentifier is a public method so we can't modify its signature.
|
||||
// Chained for convenience.
|
||||
// TODO: fix one day?
|
||||
func (i *IdentifierNode) SetPos(pos Pos) *IdentifierNode {
|
||||
i.Pos = pos
|
||||
return i
|
||||
}
|
||||
|
||||
// SetTree sets the parent tree for the node. NewIdentifier is a public method so we can't modify its signature.
|
||||
// Chained for convenience.
|
||||
// TODO: fix one day?
|
||||
func (i *IdentifierNode) SetTree(t *Tree) *IdentifierNode {
|
||||
i.tr = t
|
||||
return i
|
||||
}
|
||||
|
||||
func (i *IdentifierNode) String() string {
|
||||
return i.Ident
|
||||
}
|
||||
|
||||
func (i *IdentifierNode) tree() *Tree {
|
||||
return i.tr
|
||||
}
|
||||
|
||||
func (i *IdentifierNode) Copy() Node {
|
||||
return NewIdentifier(i.Ident).SetTree(i.tr).SetPos(i.Pos)
|
||||
}
|
||||
|
||||
// VariableNode holds a list of variable names, possibly with chained field
|
||||
// accesses. The dollar sign is part of the (first) name.
|
||||
type VariableNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Ident []string // Variable name and fields in lexical order.
|
||||
}
|
||||
|
||||
func (t *Tree) newVariable(pos Pos, ident string) *VariableNode {
|
||||
return &VariableNode{tr: t, NodeType: NodeVariable, Pos: pos, Ident: strings.Split(ident, ".")}
|
||||
}
|
||||
|
||||
func (v *VariableNode) String() string {
|
||||
s := ""
|
||||
for i, id := range v.Ident {
|
||||
if i > 0 {
|
||||
s += "."
|
||||
}
|
||||
s += id
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
func (v *VariableNode) tree() *Tree {
|
||||
return v.tr
|
||||
}
|
||||
|
||||
func (v *VariableNode) Copy() Node {
|
||||
return &VariableNode{tr: v.tr, NodeType: NodeVariable, Pos: v.Pos, Ident: append([]string{}, v.Ident...)}
|
||||
}
|
||||
|
||||
// DotNode holds the special identifier '.'.
|
||||
type DotNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
}
|
||||
|
||||
func (t *Tree) newDot(pos Pos) *DotNode {
|
||||
return &DotNode{tr: t, NodeType: NodeDot, Pos: pos}
|
||||
}
|
||||
|
||||
func (d *DotNode) Type() NodeType {
|
||||
// Override method on embedded NodeType for API compatibility.
|
||||
// TODO: Not really a problem; could change API without effect but
|
||||
// api tool complains.
|
||||
return NodeDot
|
||||
}
|
||||
|
||||
func (d *DotNode) String() string {
|
||||
return "."
|
||||
}
|
||||
|
||||
func (d *DotNode) tree() *Tree {
|
||||
return d.tr
|
||||
}
|
||||
|
||||
func (d *DotNode) Copy() Node {
|
||||
return d.tr.newDot(d.Pos)
|
||||
}
|
||||
|
||||
// NilNode holds the special identifier 'nil' representing an untyped nil constant.
|
||||
type NilNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
}
|
||||
|
||||
func (t *Tree) newNil(pos Pos) *NilNode {
|
||||
return &NilNode{tr: t, NodeType: NodeNil, Pos: pos}
|
||||
}
|
||||
|
||||
func (n *NilNode) Type() NodeType {
|
||||
// Override method on embedded NodeType for API compatibility.
|
||||
// TODO: Not really a problem; could change API without effect but
|
||||
// api tool complains.
|
||||
return NodeNil
|
||||
}
|
||||
|
||||
func (n *NilNode) String() string {
|
||||
return "nil"
|
||||
}
|
||||
|
||||
func (n *NilNode) tree() *Tree {
|
||||
return n.tr
|
||||
}
|
||||
|
||||
func (n *NilNode) Copy() Node {
|
||||
return n.tr.newNil(n.Pos)
|
||||
}
|
||||
|
||||
// FieldNode holds a field (identifier starting with '.').
|
||||
// The names may be chained ('.x.y').
|
||||
// The period is dropped from each ident.
|
||||
type FieldNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Ident []string // The identifiers in lexical order.
|
||||
}
|
||||
|
||||
func (t *Tree) newField(pos Pos, ident string) *FieldNode {
|
||||
return &FieldNode{tr: t, NodeType: NodeField, Pos: pos, Ident: strings.Split(ident[1:], ".")} // [1:] to drop leading period
|
||||
}
|
||||
|
||||
func (f *FieldNode) String() string {
|
||||
s := ""
|
||||
for _, id := range f.Ident {
|
||||
s += "." + id
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
func (f *FieldNode) tree() *Tree {
|
||||
return f.tr
|
||||
}
|
||||
|
||||
func (f *FieldNode) Copy() Node {
|
||||
return &FieldNode{tr: f.tr, NodeType: NodeField, Pos: f.Pos, Ident: append([]string{}, f.Ident...)}
|
||||
}
|
||||
|
||||
// ChainNode holds a term followed by a chain of field accesses (identifier starting with '.').
|
||||
// The names may be chained ('.x.y').
|
||||
// The periods are dropped from each ident.
|
||||
type ChainNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Node Node
|
||||
Field []string // The identifiers in lexical order.
|
||||
}
|
||||
|
||||
func (t *Tree) newChain(pos Pos, node Node) *ChainNode {
|
||||
return &ChainNode{tr: t, NodeType: NodeChain, Pos: pos, Node: node}
|
||||
}
|
||||
|
||||
// Add adds the named field (which should start with a period) to the end of the chain.
|
||||
func (c *ChainNode) Add(field string) {
|
||||
if len(field) == 0 || field[0] != '.' {
|
||||
panic("no dot in field")
|
||||
}
|
||||
field = field[1:] // Remove leading dot.
|
||||
if field == "" {
|
||||
panic("empty field")
|
||||
}
|
||||
c.Field = append(c.Field, field)
|
||||
}
|
||||
|
||||
func (c *ChainNode) String() string {
|
||||
s := c.Node.String()
|
||||
if _, ok := c.Node.(*PipeNode); ok {
|
||||
s = "(" + s + ")"
|
||||
}
|
||||
for _, field := range c.Field {
|
||||
s += "." + field
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
func (c *ChainNode) tree() *Tree {
|
||||
return c.tr
|
||||
}
|
||||
|
||||
func (c *ChainNode) Copy() Node {
|
||||
return &ChainNode{tr: c.tr, NodeType: NodeChain, Pos: c.Pos, Node: c.Node, Field: append([]string{}, c.Field...)}
|
||||
}
|
||||
|
||||
// BoolNode holds a boolean constant.
|
||||
type BoolNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
True bool // The value of the boolean constant.
|
||||
}
|
||||
|
||||
func (t *Tree) newBool(pos Pos, true bool) *BoolNode {
|
||||
return &BoolNode{tr: t, NodeType: NodeBool, Pos: pos, True: true}
|
||||
}
|
||||
|
||||
func (b *BoolNode) String() string {
|
||||
if b.True {
|
||||
return "true"
|
||||
}
|
||||
return "false"
|
||||
}
|
||||
|
||||
func (b *BoolNode) tree() *Tree {
|
||||
return b.tr
|
||||
}
|
||||
|
||||
func (b *BoolNode) Copy() Node {
|
||||
return b.tr.newBool(b.Pos, b.True)
|
||||
}
|
||||
|
||||
// NumberNode holds a number: signed or unsigned integer, float, or complex.
|
||||
// The value is parsed and stored under all the types that can represent the value.
|
||||
// This simulates in a small amount of code the behavior of Go's ideal constants.
|
||||
type NumberNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
IsInt bool // Number has an integral value.
|
||||
IsUint bool // Number has an unsigned integral value.
|
||||
IsFloat bool // Number has a floating-point value.
|
||||
IsComplex bool // Number is complex.
|
||||
Int64 int64 // The signed integer value.
|
||||
Uint64 uint64 // The unsigned integer value.
|
||||
Float64 float64 // The floating-point value.
|
||||
Complex128 complex128 // The complex value.
|
||||
Text string // The original textual representation from the input.
|
||||
}
|
||||
|
||||
func (t *Tree) newNumber(pos Pos, text string, typ itemType) (*NumberNode, error) {
|
||||
n := &NumberNode{tr: t, NodeType: NodeNumber, Pos: pos, Text: text}
|
||||
switch typ {
|
||||
case itemCharConstant:
|
||||
rune, _, tail, err := strconv.UnquoteChar(text[1:], text[0])
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if tail != "'" {
|
||||
return nil, fmt.Errorf("malformed character constant: %s", text)
|
||||
}
|
||||
n.Int64 = int64(rune)
|
||||
n.IsInt = true
|
||||
n.Uint64 = uint64(rune)
|
||||
n.IsUint = true
|
||||
n.Float64 = float64(rune) // odd but those are the rules.
|
||||
n.IsFloat = true
|
||||
return n, nil
|
||||
case itemComplex:
|
||||
// fmt.Sscan can parse the pair, so let it do the work.
|
||||
if _, err := fmt.Sscan(text, &n.Complex128); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
n.IsComplex = true
|
||||
n.simplifyComplex()
|
||||
return n, nil
|
||||
}
|
||||
// Imaginary constants can only be complex unless they are zero.
|
||||
if len(text) > 0 && text[len(text)-1] == 'i' {
|
||||
f, err := strconv.ParseFloat(text[:len(text)-1], 64)
|
||||
if err == nil {
|
||||
n.IsComplex = true
|
||||
n.Complex128 = complex(0, f)
|
||||
n.simplifyComplex()
|
||||
return n, nil
|
||||
}
|
||||
}
|
||||
// Do integer test first so we get 0x123 etc.
|
||||
u, err := strconv.ParseUint(text, 0, 64) // will fail for -0; fixed below.
|
||||
if err == nil {
|
||||
n.IsUint = true
|
||||
n.Uint64 = u
|
||||
}
|
||||
i, err := strconv.ParseInt(text, 0, 64)
|
||||
if err == nil {
|
||||
n.IsInt = true
|
||||
n.Int64 = i
|
||||
if i == 0 {
|
||||
n.IsUint = true // in case of -0.
|
||||
n.Uint64 = u
|
||||
}
|
||||
}
|
||||
// If an integer extraction succeeded, promote the float.
|
||||
if n.IsInt {
|
||||
n.IsFloat = true
|
||||
n.Float64 = float64(n.Int64)
|
||||
} else if n.IsUint {
|
||||
n.IsFloat = true
|
||||
n.Float64 = float64(n.Uint64)
|
||||
} else {
|
||||
f, err := strconv.ParseFloat(text, 64)
|
||||
if err == nil {
|
||||
n.IsFloat = true
|
||||
n.Float64 = f
|
||||
// If a floating-point extraction succeeded, extract the int if needed.
|
||||
if !n.IsInt && float64(int64(f)) == f {
|
||||
n.IsInt = true
|
||||
n.Int64 = int64(f)
|
||||
}
|
||||
if !n.IsUint && float64(uint64(f)) == f {
|
||||
n.IsUint = true
|
||||
n.Uint64 = uint64(f)
|
||||
}
|
||||
}
|
||||
}
|
||||
if !n.IsInt && !n.IsUint && !n.IsFloat {
|
||||
return nil, fmt.Errorf("illegal number syntax: %q", text)
|
||||
}
|
||||
return n, nil
|
||||
}
|
||||
|
||||
// simplifyComplex pulls out any other types that are represented by the complex number.
|
||||
// These all require that the imaginary part be zero.
|
||||
func (n *NumberNode) simplifyComplex() {
|
||||
n.IsFloat = imag(n.Complex128) == 0
|
||||
if n.IsFloat {
|
||||
n.Float64 = real(n.Complex128)
|
||||
n.IsInt = float64(int64(n.Float64)) == n.Float64
|
||||
if n.IsInt {
|
||||
n.Int64 = int64(n.Float64)
|
||||
}
|
||||
n.IsUint = float64(uint64(n.Float64)) == n.Float64
|
||||
if n.IsUint {
|
||||
n.Uint64 = uint64(n.Float64)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (n *NumberNode) String() string {
|
||||
return n.Text
|
||||
}
|
||||
|
||||
func (n *NumberNode) tree() *Tree {
|
||||
return n.tr
|
||||
}
|
||||
|
||||
func (n *NumberNode) Copy() Node {
|
||||
nn := new(NumberNode)
|
||||
*nn = *n // Easy, fast, correct.
|
||||
return nn
|
||||
}
|
||||
|
||||
// StringNode holds a string constant. The value has been "unquoted".
|
||||
type StringNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Quoted string // The original text of the string, with quotes.
|
||||
Text string // The string, after quote processing.
|
||||
}
|
||||
|
||||
func (t *Tree) newString(pos Pos, orig, text string) *StringNode {
|
||||
return &StringNode{tr: t, NodeType: NodeString, Pos: pos, Quoted: orig, Text: text}
|
||||
}
|
||||
|
||||
func (s *StringNode) String() string {
|
||||
return s.Quoted
|
||||
}
|
||||
|
||||
func (s *StringNode) tree() *Tree {
|
||||
return s.tr
|
||||
}
|
||||
|
||||
func (s *StringNode) Copy() Node {
|
||||
return s.tr.newString(s.Pos, s.Quoted, s.Text)
|
||||
}
|
||||
|
||||
// endNode represents an {{end}} action.
|
||||
// It does not appear in the final parse tree.
|
||||
type endNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
}
|
||||
|
||||
func (t *Tree) newEnd(pos Pos) *endNode {
|
||||
return &endNode{tr: t, NodeType: nodeEnd, Pos: pos}
|
||||
}
|
||||
|
||||
func (e *endNode) String() string {
|
||||
return "{{end}}"
|
||||
}
|
||||
|
||||
func (e *endNode) tree() *Tree {
|
||||
return e.tr
|
||||
}
|
||||
|
||||
func (e *endNode) Copy() Node {
|
||||
return e.tr.newEnd(e.Pos)
|
||||
}
|
||||
|
||||
// elseNode represents an {{else}} action. Does not appear in the final tree.
|
||||
type elseNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Line int // The line number in the input (deprecated; kept for compatibility)
|
||||
}
|
||||
|
||||
func (t *Tree) newElse(pos Pos, line int) *elseNode {
|
||||
return &elseNode{tr: t, NodeType: nodeElse, Pos: pos, Line: line}
|
||||
}
|
||||
|
||||
func (e *elseNode) Type() NodeType {
|
||||
return nodeElse
|
||||
}
|
||||
|
||||
func (e *elseNode) String() string {
|
||||
return "{{else}}"
|
||||
}
|
||||
|
||||
func (e *elseNode) tree() *Tree {
|
||||
return e.tr
|
||||
}
|
||||
|
||||
func (e *elseNode) Copy() Node {
|
||||
return e.tr.newElse(e.Pos, e.Line)
|
||||
}
|
||||
|
||||
// BranchNode is the common representation of if, range, and with.
|
||||
type BranchNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Line int // The line number in the input (deprecated; kept for compatibility)
|
||||
Pipe *PipeNode // The pipeline to be evaluated.
|
||||
List *ListNode // What to execute if the value is non-empty.
|
||||
ElseList *ListNode // What to execute if the value is empty (nil if absent).
|
||||
}
|
||||
|
||||
func (b *BranchNode) String() string {
|
||||
name := ""
|
||||
switch b.NodeType {
|
||||
case NodeIf:
|
||||
name = "if"
|
||||
case NodeRange:
|
||||
name = "range"
|
||||
case NodeWith:
|
||||
name = "with"
|
||||
default:
|
||||
panic("unknown branch type")
|
||||
}
|
||||
if b.ElseList != nil {
|
||||
return fmt.Sprintf("{{%s %s}}%s{{else}}%s{{end}}", name, b.Pipe, b.List, b.ElseList)
|
||||
}
|
||||
return fmt.Sprintf("{{%s %s}}%s{{end}}", name, b.Pipe, b.List)
|
||||
}
|
||||
|
||||
func (b *BranchNode) tree() *Tree {
|
||||
return b.tr
|
||||
}
|
||||
|
||||
func (b *BranchNode) Copy() Node {
|
||||
switch b.NodeType {
|
||||
case NodeIf:
|
||||
return b.tr.newIf(b.Pos, b.Line, b.Pipe, b.List, b.ElseList)
|
||||
case NodeRange:
|
||||
return b.tr.newRange(b.Pos, b.Line, b.Pipe, b.List, b.ElseList)
|
||||
case NodeWith:
|
||||
return b.tr.newWith(b.Pos, b.Line, b.Pipe, b.List, b.ElseList)
|
||||
default:
|
||||
panic("unknown branch type")
|
||||
}
|
||||
}
|
||||
|
||||
// IfNode represents an {{if}} action and its commands.
|
||||
type IfNode struct {
|
||||
BranchNode
|
||||
}
|
||||
|
||||
func (t *Tree) newIf(pos Pos, line int, pipe *PipeNode, list, elseList *ListNode) *IfNode {
|
||||
return &IfNode{BranchNode{tr: t, NodeType: NodeIf, Pos: pos, Line: line, Pipe: pipe, List: list, ElseList: elseList}}
|
||||
}
|
||||
|
||||
func (i *IfNode) Copy() Node {
|
||||
return i.tr.newIf(i.Pos, i.Line, i.Pipe.CopyPipe(), i.List.CopyList(), i.ElseList.CopyList())
|
||||
}
|
||||
|
||||
// RangeNode represents a {{range}} action and its commands.
|
||||
type RangeNode struct {
|
||||
BranchNode
|
||||
}
|
||||
|
||||
func (t *Tree) newRange(pos Pos, line int, pipe *PipeNode, list, elseList *ListNode) *RangeNode {
|
||||
return &RangeNode{BranchNode{tr: t, NodeType: NodeRange, Pos: pos, Line: line, Pipe: pipe, List: list, ElseList: elseList}}
|
||||
}
|
||||
|
||||
func (r *RangeNode) Copy() Node {
|
||||
return r.tr.newRange(r.Pos, r.Line, r.Pipe.CopyPipe(), r.List.CopyList(), r.ElseList.CopyList())
|
||||
}
|
||||
|
||||
// WithNode represents a {{with}} action and its commands.
|
||||
type WithNode struct {
|
||||
BranchNode
|
||||
}
|
||||
|
||||
func (t *Tree) newWith(pos Pos, line int, pipe *PipeNode, list, elseList *ListNode) *WithNode {
|
||||
return &WithNode{BranchNode{tr: t, NodeType: NodeWith, Pos: pos, Line: line, Pipe: pipe, List: list, ElseList: elseList}}
|
||||
}
|
||||
|
||||
func (w *WithNode) Copy() Node {
|
||||
return w.tr.newWith(w.Pos, w.Line, w.Pipe.CopyPipe(), w.List.CopyList(), w.ElseList.CopyList())
|
||||
}
|
||||
|
||||
// TemplateNode represents a {{template}} action.
|
||||
type TemplateNode struct {
|
||||
NodeType
|
||||
Pos
|
||||
tr *Tree
|
||||
Line int // The line number in the input (deprecated; kept for compatibility)
|
||||
Name string // The name of the template (unquoted).
|
||||
Pipe *PipeNode // The command to evaluate as dot for the template.
|
||||
}
|
||||
|
||||
func (t *Tree) newTemplate(pos Pos, line int, name string, pipe *PipeNode) *TemplateNode {
|
||||
return &TemplateNode{tr: t, NodeType: NodeTemplate, Pos: pos, Line: line, Name: name, Pipe: pipe}
|
||||
}
|
||||
|
||||
func (t *TemplateNode) String() string {
|
||||
if t.Pipe == nil {
|
||||
return fmt.Sprintf("{{template %q}}", t.Name)
|
||||
}
|
||||
return fmt.Sprintf("{{template %q %s}}", t.Name, t.Pipe)
|
||||
}
|
||||
|
||||
func (t *TemplateNode) tree() *Tree {
|
||||
return t.tr
|
||||
}
|
||||
|
||||
func (t *TemplateNode) Copy() Node {
|
||||
return t.tr.newTemplate(t.Pos, t.Line, t.Name, t.Pipe.CopyPipe())
|
||||
}
|
||||
-700
@@ -1,700 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package parse builds parse trees for templates as defined by text/template
|
||||
// and html/template. Clients should use those packages to construct templates
|
||||
// rather than this one, which provides shared internal data structures not
|
||||
// intended for general use.
|
||||
package parse
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"runtime"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// Tree is the representation of a single parsed template.
|
||||
type Tree struct {
|
||||
Name string // name of the template represented by the tree.
|
||||
ParseName string // name of the top-level template during parsing, for error messages.
|
||||
Root *ListNode // top-level root of the tree.
|
||||
text string // text parsed to create the template (or its parent)
|
||||
// Parsing only; cleared after parse.
|
||||
funcs []map[string]interface{}
|
||||
lex *lexer
|
||||
token [3]item // three-token lookahead for parser.
|
||||
peekCount int
|
||||
vars []string // variables defined at the moment.
|
||||
}
|
||||
|
||||
// Copy returns a copy of the Tree. Any parsing state is discarded.
|
||||
func (t *Tree) Copy() *Tree {
|
||||
if t == nil {
|
||||
return nil
|
||||
}
|
||||
return &Tree{
|
||||
Name: t.Name,
|
||||
ParseName: t.ParseName,
|
||||
Root: t.Root.CopyList(),
|
||||
text: t.text,
|
||||
}
|
||||
}
|
||||
|
||||
// Parse returns a map from template name to parse.Tree, created by parsing the
|
||||
// templates described in the argument string. The top-level template will be
|
||||
// given the specified name. If an error is encountered, parsing stops and an
|
||||
// empty map is returned with the error.
|
||||
func Parse(name, text, leftDelim, rightDelim string, funcs ...map[string]interface{}) (treeSet map[string]*Tree, err error) {
|
||||
treeSet = make(map[string]*Tree)
|
||||
t := New(name)
|
||||
t.text = text
|
||||
_, err = t.Parse(text, leftDelim, rightDelim, treeSet, funcs...)
|
||||
return
|
||||
}
|
||||
|
||||
// next returns the next token.
|
||||
func (t *Tree) next() item {
|
||||
if t.peekCount > 0 {
|
||||
t.peekCount--
|
||||
} else {
|
||||
t.token[0] = t.lex.nextItem()
|
||||
}
|
||||
return t.token[t.peekCount]
|
||||
}
|
||||
|
||||
// backup backs the input stream up one token.
|
||||
func (t *Tree) backup() {
|
||||
t.peekCount++
|
||||
}
|
||||
|
||||
// backup2 backs the input stream up two tokens.
|
||||
// The zeroth token is already there.
|
||||
func (t *Tree) backup2(t1 item) {
|
||||
t.token[1] = t1
|
||||
t.peekCount = 2
|
||||
}
|
||||
|
||||
// backup3 backs the input stream up three tokens
|
||||
// The zeroth token is already there.
|
||||
func (t *Tree) backup3(t2, t1 item) { // Reverse order: we're pushing back.
|
||||
t.token[1] = t1
|
||||
t.token[2] = t2
|
||||
t.peekCount = 3
|
||||
}
|
||||
|
||||
// peek returns but does not consume the next token.
|
||||
func (t *Tree) peek() item {
|
||||
if t.peekCount > 0 {
|
||||
return t.token[t.peekCount-1]
|
||||
}
|
||||
t.peekCount = 1
|
||||
t.token[0] = t.lex.nextItem()
|
||||
return t.token[0]
|
||||
}
|
||||
|
||||
// nextNonSpace returns the next non-space token.
|
||||
func (t *Tree) nextNonSpace() (token item) {
|
||||
for {
|
||||
token = t.next()
|
||||
if token.typ != itemSpace {
|
||||
break
|
||||
}
|
||||
}
|
||||
return token
|
||||
}
|
||||
|
||||
// peekNonSpace returns but does not consume the next non-space token.
|
||||
func (t *Tree) peekNonSpace() (token item) {
|
||||
for {
|
||||
token = t.next()
|
||||
if token.typ != itemSpace {
|
||||
break
|
||||
}
|
||||
}
|
||||
t.backup()
|
||||
return token
|
||||
}
|
||||
|
||||
// Parsing.
|
||||
|
||||
// New allocates a new parse tree with the given name.
|
||||
func New(name string, funcs ...map[string]interface{}) *Tree {
|
||||
return &Tree{
|
||||
Name: name,
|
||||
funcs: funcs,
|
||||
}
|
||||
}
|
||||
|
||||
// ErrorContext returns a textual representation of the location of the node in the input text.
|
||||
// The receiver is only used when the node does not have a pointer to the tree inside,
|
||||
// which can occur in old code.
|
||||
func (t *Tree) ErrorContext(n Node) (location, context string) {
|
||||
pos := int(n.Position())
|
||||
tree := n.tree()
|
||||
if tree == nil {
|
||||
tree = t
|
||||
}
|
||||
text := tree.text[:pos]
|
||||
byteNum := strings.LastIndex(text, "\n")
|
||||
if byteNum == -1 {
|
||||
byteNum = pos // On first line.
|
||||
} else {
|
||||
byteNum++ // After the newline.
|
||||
byteNum = pos - byteNum
|
||||
}
|
||||
lineNum := 1 + strings.Count(text, "\n")
|
||||
context = n.String()
|
||||
if len(context) > 20 {
|
||||
context = fmt.Sprintf("%.20s...", context)
|
||||
}
|
||||
return fmt.Sprintf("%s:%d:%d", tree.ParseName, lineNum, byteNum), context
|
||||
}
|
||||
|
||||
// errorf formats the error and terminates processing.
|
||||
func (t *Tree) errorf(format string, args ...interface{}) {
|
||||
t.Root = nil
|
||||
format = fmt.Sprintf("template: %s:%d: %s", t.ParseName, t.lex.lineNumber(), format)
|
||||
panic(fmt.Errorf(format, args...))
|
||||
}
|
||||
|
||||
// error terminates processing.
|
||||
func (t *Tree) error(err error) {
|
||||
t.errorf("%s", err)
|
||||
}
|
||||
|
||||
// expect consumes the next token and guarantees it has the required type.
|
||||
func (t *Tree) expect(expected itemType, context string) item {
|
||||
token := t.nextNonSpace()
|
||||
if token.typ != expected {
|
||||
t.unexpected(token, context)
|
||||
}
|
||||
return token
|
||||
}
|
||||
|
||||
// expectOneOf consumes the next token and guarantees it has one of the required types.
|
||||
func (t *Tree) expectOneOf(expected1, expected2 itemType, context string) item {
|
||||
token := t.nextNonSpace()
|
||||
if token.typ != expected1 && token.typ != expected2 {
|
||||
t.unexpected(token, context)
|
||||
}
|
||||
return token
|
||||
}
|
||||
|
||||
// unexpected complains about the token and terminates processing.
|
||||
func (t *Tree) unexpected(token item, context string) {
|
||||
t.errorf("unexpected %s in %s", token, context)
|
||||
}
|
||||
|
||||
// recover is the handler that turns panics into returns from the top level of Parse.
|
||||
func (t *Tree) recover(errp *error) {
|
||||
e := recover()
|
||||
if e != nil {
|
||||
if _, ok := e.(runtime.Error); ok {
|
||||
panic(e)
|
||||
}
|
||||
if t != nil {
|
||||
t.stopParse()
|
||||
}
|
||||
*errp = e.(error)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// startParse initializes the parser, using the lexer.
|
||||
func (t *Tree) startParse(funcs []map[string]interface{}, lex *lexer) {
|
||||
t.Root = nil
|
||||
t.lex = lex
|
||||
t.vars = []string{"$"}
|
||||
t.funcs = funcs
|
||||
}
|
||||
|
||||
// stopParse terminates parsing.
|
||||
func (t *Tree) stopParse() {
|
||||
t.lex = nil
|
||||
t.vars = nil
|
||||
t.funcs = nil
|
||||
}
|
||||
|
||||
// Parse parses the template definition string to construct a representation of
|
||||
// the template for execution. If either action delimiter string is empty, the
|
||||
// default ("{{" or "}}") is used. Embedded template definitions are added to
|
||||
// the treeSet map.
|
||||
func (t *Tree) Parse(text, leftDelim, rightDelim string, treeSet map[string]*Tree, funcs ...map[string]interface{}) (tree *Tree, err error) {
|
||||
defer t.recover(&err)
|
||||
t.ParseName = t.Name
|
||||
t.startParse(funcs, lex(t.Name, text, leftDelim, rightDelim))
|
||||
t.text = text
|
||||
t.parse(treeSet)
|
||||
t.add(treeSet)
|
||||
t.stopParse()
|
||||
return t, nil
|
||||
}
|
||||
|
||||
// add adds tree to the treeSet.
|
||||
func (t *Tree) add(treeSet map[string]*Tree) {
|
||||
tree := treeSet[t.Name]
|
||||
if tree == nil || IsEmptyTree(tree.Root) {
|
||||
treeSet[t.Name] = t
|
||||
return
|
||||
}
|
||||
if !IsEmptyTree(t.Root) {
|
||||
t.errorf("template: multiple definition of template %q", t.Name)
|
||||
}
|
||||
}
|
||||
|
||||
// IsEmptyTree reports whether this tree (node) is empty of everything but space.
|
||||
func IsEmptyTree(n Node) bool {
|
||||
switch n := n.(type) {
|
||||
case nil:
|
||||
return true
|
||||
case *ActionNode:
|
||||
case *IfNode:
|
||||
case *ListNode:
|
||||
for _, node := range n.Nodes {
|
||||
if !IsEmptyTree(node) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
case *RangeNode:
|
||||
case *TemplateNode:
|
||||
case *TextNode:
|
||||
return len(bytes.TrimSpace(n.Text)) == 0
|
||||
case *WithNode:
|
||||
default:
|
||||
panic("unknown node: " + n.String())
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// parse is the top-level parser for a template, essentially the same
|
||||
// as itemList except it also parses {{define}} actions.
|
||||
// It runs to EOF.
|
||||
func (t *Tree) parse(treeSet map[string]*Tree) (next Node) {
|
||||
t.Root = t.newList(t.peek().pos)
|
||||
for t.peek().typ != itemEOF {
|
||||
if t.peek().typ == itemLeftDelim {
|
||||
delim := t.next()
|
||||
if t.nextNonSpace().typ == itemDefine {
|
||||
newT := New("definition") // name will be updated once we know it.
|
||||
newT.text = t.text
|
||||
newT.ParseName = t.ParseName
|
||||
newT.startParse(t.funcs, t.lex)
|
||||
newT.parseDefinition(treeSet)
|
||||
continue
|
||||
}
|
||||
t.backup2(delim)
|
||||
}
|
||||
n := t.textOrAction()
|
||||
if n.Type() == nodeEnd {
|
||||
t.errorf("unexpected %s", n)
|
||||
}
|
||||
t.Root.append(n)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// parseDefinition parses a {{define}} ... {{end}} template definition and
|
||||
// installs the definition in the treeSet map. The "define" keyword has already
|
||||
// been scanned.
|
||||
func (t *Tree) parseDefinition(treeSet map[string]*Tree) {
|
||||
const context = "define clause"
|
||||
name := t.expectOneOf(itemString, itemRawString, context)
|
||||
var err error
|
||||
t.Name, err = strconv.Unquote(name.val)
|
||||
if err != nil {
|
||||
t.error(err)
|
||||
}
|
||||
t.expect(itemRightDelim, context)
|
||||
var end Node
|
||||
t.Root, end = t.itemList()
|
||||
if end.Type() != nodeEnd {
|
||||
t.errorf("unexpected %s in %s", end, context)
|
||||
}
|
||||
t.add(treeSet)
|
||||
t.stopParse()
|
||||
}
|
||||
|
||||
// itemList:
|
||||
// textOrAction*
|
||||
// Terminates at {{end}} or {{else}}, returned separately.
|
||||
func (t *Tree) itemList() (list *ListNode, next Node) {
|
||||
list = t.newList(t.peekNonSpace().pos)
|
||||
for t.peekNonSpace().typ != itemEOF {
|
||||
n := t.textOrAction()
|
||||
switch n.Type() {
|
||||
case nodeEnd, nodeElse:
|
||||
return list, n
|
||||
}
|
||||
list.append(n)
|
||||
}
|
||||
t.errorf("unexpected EOF")
|
||||
return
|
||||
}
|
||||
|
||||
// textOrAction:
|
||||
// text | action
|
||||
func (t *Tree) textOrAction() Node {
|
||||
switch token := t.nextNonSpace(); token.typ {
|
||||
case itemElideNewline:
|
||||
return t.elideNewline()
|
||||
case itemText:
|
||||
return t.newText(token.pos, token.val)
|
||||
case itemLeftDelim:
|
||||
return t.action()
|
||||
default:
|
||||
t.unexpected(token, "input")
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// elideNewline:
|
||||
// Remove newlines trailing rightDelim if \\ is present.
|
||||
func (t *Tree) elideNewline() Node {
|
||||
token := t.peek()
|
||||
if token.typ != itemText {
|
||||
t.unexpected(token, "input")
|
||||
return nil
|
||||
}
|
||||
|
||||
t.next()
|
||||
stripped := strings.TrimLeft(token.val, "\n\r")
|
||||
diff := len(token.val) - len(stripped)
|
||||
if diff > 0 {
|
||||
// This is a bit nasty. We mutate the token in-place to remove
|
||||
// preceding newlines.
|
||||
token.pos += Pos(diff)
|
||||
token.val = stripped
|
||||
}
|
||||
return t.newText(token.pos, token.val)
|
||||
}
|
||||
|
||||
// Action:
|
||||
// control
|
||||
// command ("|" command)*
|
||||
// Left delim is past. Now get actions.
|
||||
// First word could be a keyword such as range.
|
||||
func (t *Tree) action() (n Node) {
|
||||
switch token := t.nextNonSpace(); token.typ {
|
||||
case itemElse:
|
||||
return t.elseControl()
|
||||
case itemEnd:
|
||||
return t.endControl()
|
||||
case itemIf:
|
||||
return t.ifControl()
|
||||
case itemRange:
|
||||
return t.rangeControl()
|
||||
case itemTemplate:
|
||||
return t.templateControl()
|
||||
case itemWith:
|
||||
return t.withControl()
|
||||
}
|
||||
t.backup()
|
||||
// Do not pop variables; they persist until "end".
|
||||
return t.newAction(t.peek().pos, t.lex.lineNumber(), t.pipeline("command"))
|
||||
}
|
||||
|
||||
// Pipeline:
|
||||
// declarations? command ('|' command)*
|
||||
func (t *Tree) pipeline(context string) (pipe *PipeNode) {
|
||||
var decl []*VariableNode
|
||||
pos := t.peekNonSpace().pos
|
||||
// Are there declarations?
|
||||
for {
|
||||
if v := t.peekNonSpace(); v.typ == itemVariable {
|
||||
t.next()
|
||||
// Since space is a token, we need 3-token look-ahead here in the worst case:
|
||||
// in "$x foo" we need to read "foo" (as opposed to ":=") to know that $x is an
|
||||
// argument variable rather than a declaration. So remember the token
|
||||
// adjacent to the variable so we can push it back if necessary.
|
||||
tokenAfterVariable := t.peek()
|
||||
if next := t.peekNonSpace(); next.typ == itemColonEquals || (next.typ == itemChar && next.val == ",") {
|
||||
t.nextNonSpace()
|
||||
variable := t.newVariable(v.pos, v.val)
|
||||
decl = append(decl, variable)
|
||||
t.vars = append(t.vars, v.val)
|
||||
if next.typ == itemChar && next.val == "," {
|
||||
if context == "range" && len(decl) < 2 {
|
||||
continue
|
||||
}
|
||||
t.errorf("too many declarations in %s", context)
|
||||
}
|
||||
} else if tokenAfterVariable.typ == itemSpace {
|
||||
t.backup3(v, tokenAfterVariable)
|
||||
} else {
|
||||
t.backup2(v)
|
||||
}
|
||||
}
|
||||
break
|
||||
}
|
||||
pipe = t.newPipeline(pos, t.lex.lineNumber(), decl)
|
||||
for {
|
||||
switch token := t.nextNonSpace(); token.typ {
|
||||
case itemRightDelim, itemRightParen:
|
||||
if len(pipe.Cmds) == 0 {
|
||||
t.errorf("missing value for %s", context)
|
||||
}
|
||||
if token.typ == itemRightParen {
|
||||
t.backup()
|
||||
}
|
||||
return
|
||||
case itemBool, itemCharConstant, itemComplex, itemDot, itemField, itemIdentifier,
|
||||
itemNumber, itemNil, itemRawString, itemString, itemVariable, itemLeftParen:
|
||||
t.backup()
|
||||
pipe.append(t.command())
|
||||
default:
|
||||
t.unexpected(token, context)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (t *Tree) parseControl(allowElseIf bool, context string) (pos Pos, line int, pipe *PipeNode, list, elseList *ListNode) {
|
||||
defer t.popVars(len(t.vars))
|
||||
line = t.lex.lineNumber()
|
||||
pipe = t.pipeline(context)
|
||||
var next Node
|
||||
list, next = t.itemList()
|
||||
switch next.Type() {
|
||||
case nodeEnd: //done
|
||||
case nodeElse:
|
||||
if allowElseIf {
|
||||
// Special case for "else if". If the "else" is followed immediately by an "if",
|
||||
// the elseControl will have left the "if" token pending. Treat
|
||||
// {{if a}}_{{else if b}}_{{end}}
|
||||
// as
|
||||
// {{if a}}_{{else}}{{if b}}_{{end}}{{end}}.
|
||||
// To do this, parse the if as usual and stop at it {{end}}; the subsequent{{end}}
|
||||
// is assumed. This technique works even for long if-else-if chains.
|
||||
// TODO: Should we allow else-if in with and range?
|
||||
if t.peek().typ == itemIf {
|
||||
t.next() // Consume the "if" token.
|
||||
elseList = t.newList(next.Position())
|
||||
elseList.append(t.ifControl())
|
||||
// Do not consume the next item - only one {{end}} required.
|
||||
break
|
||||
}
|
||||
}
|
||||
elseList, next = t.itemList()
|
||||
if next.Type() != nodeEnd {
|
||||
t.errorf("expected end; found %s", next)
|
||||
}
|
||||
}
|
||||
return pipe.Position(), line, pipe, list, elseList
|
||||
}
|
||||
|
||||
// If:
|
||||
// {{if pipeline}} itemList {{end}}
|
||||
// {{if pipeline}} itemList {{else}} itemList {{end}}
|
||||
// If keyword is past.
|
||||
func (t *Tree) ifControl() Node {
|
||||
return t.newIf(t.parseControl(true, "if"))
|
||||
}
|
||||
|
||||
// Range:
|
||||
// {{range pipeline}} itemList {{end}}
|
||||
// {{range pipeline}} itemList {{else}} itemList {{end}}
|
||||
// Range keyword is past.
|
||||
func (t *Tree) rangeControl() Node {
|
||||
return t.newRange(t.parseControl(false, "range"))
|
||||
}
|
||||
|
||||
// With:
|
||||
// {{with pipeline}} itemList {{end}}
|
||||
// {{with pipeline}} itemList {{else}} itemList {{end}}
|
||||
// If keyword is past.
|
||||
func (t *Tree) withControl() Node {
|
||||
return t.newWith(t.parseControl(false, "with"))
|
||||
}
|
||||
|
||||
// End:
|
||||
// {{end}}
|
||||
// End keyword is past.
|
||||
func (t *Tree) endControl() Node {
|
||||
return t.newEnd(t.expect(itemRightDelim, "end").pos)
|
||||
}
|
||||
|
||||
// Else:
|
||||
// {{else}}
|
||||
// Else keyword is past.
|
||||
func (t *Tree) elseControl() Node {
|
||||
// Special case for "else if".
|
||||
peek := t.peekNonSpace()
|
||||
if peek.typ == itemIf {
|
||||
// We see "{{else if ... " but in effect rewrite it to {{else}}{{if ... ".
|
||||
return t.newElse(peek.pos, t.lex.lineNumber())
|
||||
}
|
||||
return t.newElse(t.expect(itemRightDelim, "else").pos, t.lex.lineNumber())
|
||||
}
|
||||
|
||||
// Template:
|
||||
// {{template stringValue pipeline}}
|
||||
// Template keyword is past. The name must be something that can evaluate
|
||||
// to a string.
|
||||
func (t *Tree) templateControl() Node {
|
||||
var name string
|
||||
token := t.nextNonSpace()
|
||||
switch token.typ {
|
||||
case itemString, itemRawString:
|
||||
s, err := strconv.Unquote(token.val)
|
||||
if err != nil {
|
||||
t.error(err)
|
||||
}
|
||||
name = s
|
||||
default:
|
||||
t.unexpected(token, "template invocation")
|
||||
}
|
||||
var pipe *PipeNode
|
||||
if t.nextNonSpace().typ != itemRightDelim {
|
||||
t.backup()
|
||||
// Do not pop variables; they persist until "end".
|
||||
pipe = t.pipeline("template")
|
||||
}
|
||||
return t.newTemplate(token.pos, t.lex.lineNumber(), name, pipe)
|
||||
}
|
||||
|
||||
// command:
|
||||
// operand (space operand)*
|
||||
// space-separated arguments up to a pipeline character or right delimiter.
|
||||
// we consume the pipe character but leave the right delim to terminate the action.
|
||||
func (t *Tree) command() *CommandNode {
|
||||
cmd := t.newCommand(t.peekNonSpace().pos)
|
||||
for {
|
||||
t.peekNonSpace() // skip leading spaces.
|
||||
operand := t.operand()
|
||||
if operand != nil {
|
||||
cmd.append(operand)
|
||||
}
|
||||
switch token := t.next(); token.typ {
|
||||
case itemSpace:
|
||||
continue
|
||||
case itemError:
|
||||
t.errorf("%s", token.val)
|
||||
case itemRightDelim, itemRightParen:
|
||||
t.backup()
|
||||
case itemPipe:
|
||||
default:
|
||||
t.errorf("unexpected %s in operand; missing space?", token)
|
||||
}
|
||||
break
|
||||
}
|
||||
if len(cmd.Args) == 0 {
|
||||
t.errorf("empty command")
|
||||
}
|
||||
return cmd
|
||||
}
|
||||
|
||||
// operand:
|
||||
// term .Field*
|
||||
// An operand is a space-separated component of a command,
|
||||
// a term possibly followed by field accesses.
|
||||
// A nil return means the next item is not an operand.
|
||||
func (t *Tree) operand() Node {
|
||||
node := t.term()
|
||||
if node == nil {
|
||||
return nil
|
||||
}
|
||||
if t.peek().typ == itemField {
|
||||
chain := t.newChain(t.peek().pos, node)
|
||||
for t.peek().typ == itemField {
|
||||
chain.Add(t.next().val)
|
||||
}
|
||||
// Compatibility with original API: If the term is of type NodeField
|
||||
// or NodeVariable, just put more fields on the original.
|
||||
// Otherwise, keep the Chain node.
|
||||
// TODO: Switch to Chains always when we can.
|
||||
switch node.Type() {
|
||||
case NodeField:
|
||||
node = t.newField(chain.Position(), chain.String())
|
||||
case NodeVariable:
|
||||
node = t.newVariable(chain.Position(), chain.String())
|
||||
default:
|
||||
node = chain
|
||||
}
|
||||
}
|
||||
return node
|
||||
}
|
||||
|
||||
// term:
|
||||
// literal (number, string, nil, boolean)
|
||||
// function (identifier)
|
||||
// .
|
||||
// .Field
|
||||
// $
|
||||
// '(' pipeline ')'
|
||||
// A term is a simple "expression".
|
||||
// A nil return means the next item is not a term.
|
||||
func (t *Tree) term() Node {
|
||||
switch token := t.nextNonSpace(); token.typ {
|
||||
case itemError:
|
||||
t.errorf("%s", token.val)
|
||||
case itemIdentifier:
|
||||
if !t.hasFunction(token.val) {
|
||||
t.errorf("function %q not defined", token.val)
|
||||
}
|
||||
return NewIdentifier(token.val).SetTree(t).SetPos(token.pos)
|
||||
case itemDot:
|
||||
return t.newDot(token.pos)
|
||||
case itemNil:
|
||||
return t.newNil(token.pos)
|
||||
case itemVariable:
|
||||
return t.useVar(token.pos, token.val)
|
||||
case itemField:
|
||||
return t.newField(token.pos, token.val)
|
||||
case itemBool:
|
||||
return t.newBool(token.pos, token.val == "true")
|
||||
case itemCharConstant, itemComplex, itemNumber:
|
||||
number, err := t.newNumber(token.pos, token.val, token.typ)
|
||||
if err != nil {
|
||||
t.error(err)
|
||||
}
|
||||
return number
|
||||
case itemLeftParen:
|
||||
pipe := t.pipeline("parenthesized pipeline")
|
||||
if token := t.next(); token.typ != itemRightParen {
|
||||
t.errorf("unclosed right paren: unexpected %s", token)
|
||||
}
|
||||
return pipe
|
||||
case itemString, itemRawString:
|
||||
s, err := strconv.Unquote(token.val)
|
||||
if err != nil {
|
||||
t.error(err)
|
||||
}
|
||||
return t.newString(token.pos, token.val, s)
|
||||
}
|
||||
t.backup()
|
||||
return nil
|
||||
}
|
||||
|
||||
// hasFunction reports if a function name exists in the Tree's maps.
|
||||
func (t *Tree) hasFunction(name string) bool {
|
||||
for _, funcMap := range t.funcs {
|
||||
if funcMap == nil {
|
||||
continue
|
||||
}
|
||||
if funcMap[name] != nil {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// popVars trims the variable list to the specified length
|
||||
func (t *Tree) popVars(n int) {
|
||||
t.vars = t.vars[:n]
|
||||
}
|
||||
|
||||
// useVar returns a node for a variable reference. It errors if the
|
||||
// variable is not defined.
|
||||
func (t *Tree) useVar(pos Pos, name string) Node {
|
||||
v := t.newVariable(pos, name)
|
||||
for _, varName := range t.vars {
|
||||
if varName == v.Ident[0] {
|
||||
return v
|
||||
}
|
||||
}
|
||||
t.errorf("undefined variable %q", v.Ident[0])
|
||||
return nil
|
||||
}
|
||||
-426
@@ -1,426 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package parse
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"fmt"
|
||||
"strings"
|
||||
"testing"
|
||||
)
|
||||
|
||||
var debug = flag.Bool("debug", false, "show the errors produced by the main tests")
|
||||
|
||||
type numberTest struct {
|
||||
text string
|
||||
isInt bool
|
||||
isUint bool
|
||||
isFloat bool
|
||||
isComplex bool
|
||||
int64
|
||||
uint64
|
||||
float64
|
||||
complex128
|
||||
}
|
||||
|
||||
var numberTests = []numberTest{
|
||||
// basics
|
||||
{"0", true, true, true, false, 0, 0, 0, 0},
|
||||
{"-0", true, true, true, false, 0, 0, 0, 0}, // check that -0 is a uint.
|
||||
{"73", true, true, true, false, 73, 73, 73, 0},
|
||||
{"073", true, true, true, false, 073, 073, 073, 0},
|
||||
{"0x73", true, true, true, false, 0x73, 0x73, 0x73, 0},
|
||||
{"-73", true, false, true, false, -73, 0, -73, 0},
|
||||
{"+73", true, false, true, false, 73, 0, 73, 0},
|
||||
{"100", true, true, true, false, 100, 100, 100, 0},
|
||||
{"1e9", true, true, true, false, 1e9, 1e9, 1e9, 0},
|
||||
{"-1e9", true, false, true, false, -1e9, 0, -1e9, 0},
|
||||
{"-1.2", false, false, true, false, 0, 0, -1.2, 0},
|
||||
{"1e19", false, true, true, false, 0, 1e19, 1e19, 0},
|
||||
{"-1e19", false, false, true, false, 0, 0, -1e19, 0},
|
||||
{"4i", false, false, false, true, 0, 0, 0, 4i},
|
||||
{"-1.2+4.2i", false, false, false, true, 0, 0, 0, -1.2 + 4.2i},
|
||||
{"073i", false, false, false, true, 0, 0, 0, 73i}, // not octal!
|
||||
// complex with 0 imaginary are float (and maybe integer)
|
||||
{"0i", true, true, true, true, 0, 0, 0, 0},
|
||||
{"-1.2+0i", false, false, true, true, 0, 0, -1.2, -1.2},
|
||||
{"-12+0i", true, false, true, true, -12, 0, -12, -12},
|
||||
{"13+0i", true, true, true, true, 13, 13, 13, 13},
|
||||
// funny bases
|
||||
{"0123", true, true, true, false, 0123, 0123, 0123, 0},
|
||||
{"-0x0", true, true, true, false, 0, 0, 0, 0},
|
||||
{"0xdeadbeef", true, true, true, false, 0xdeadbeef, 0xdeadbeef, 0xdeadbeef, 0},
|
||||
// character constants
|
||||
{`'a'`, true, true, true, false, 'a', 'a', 'a', 0},
|
||||
{`'\n'`, true, true, true, false, '\n', '\n', '\n', 0},
|
||||
{`'\\'`, true, true, true, false, '\\', '\\', '\\', 0},
|
||||
{`'\''`, true, true, true, false, '\'', '\'', '\'', 0},
|
||||
{`'\xFF'`, true, true, true, false, 0xFF, 0xFF, 0xFF, 0},
|
||||
{`'パ'`, true, true, true, false, 0x30d1, 0x30d1, 0x30d1, 0},
|
||||
{`'\u30d1'`, true, true, true, false, 0x30d1, 0x30d1, 0x30d1, 0},
|
||||
{`'\U000030d1'`, true, true, true, false, 0x30d1, 0x30d1, 0x30d1, 0},
|
||||
// some broken syntax
|
||||
{text: "+-2"},
|
||||
{text: "0x123."},
|
||||
{text: "1e."},
|
||||
{text: "0xi."},
|
||||
{text: "1+2."},
|
||||
{text: "'x"},
|
||||
{text: "'xx'"},
|
||||
// Issue 8622 - 0xe parsed as floating point. Very embarrassing.
|
||||
{"0xef", true, true, true, false, 0xef, 0xef, 0xef, 0},
|
||||
}
|
||||
|
||||
func TestNumberParse(t *testing.T) {
|
||||
for _, test := range numberTests {
|
||||
// If fmt.Sscan thinks it's complex, it's complex. We can't trust the output
|
||||
// because imaginary comes out as a number.
|
||||
var c complex128
|
||||
typ := itemNumber
|
||||
var tree *Tree
|
||||
if test.text[0] == '\'' {
|
||||
typ = itemCharConstant
|
||||
} else {
|
||||
_, err := fmt.Sscan(test.text, &c)
|
||||
if err == nil {
|
||||
typ = itemComplex
|
||||
}
|
||||
}
|
||||
n, err := tree.newNumber(0, test.text, typ)
|
||||
ok := test.isInt || test.isUint || test.isFloat || test.isComplex
|
||||
if ok && err != nil {
|
||||
t.Errorf("unexpected error for %q: %s", test.text, err)
|
||||
continue
|
||||
}
|
||||
if !ok && err == nil {
|
||||
t.Errorf("expected error for %q", test.text)
|
||||
continue
|
||||
}
|
||||
if !ok {
|
||||
if *debug {
|
||||
fmt.Printf("%s\n\t%s\n", test.text, err)
|
||||
}
|
||||
continue
|
||||
}
|
||||
if n.IsComplex != test.isComplex {
|
||||
t.Errorf("complex incorrect for %q; should be %t", test.text, test.isComplex)
|
||||
}
|
||||
if test.isInt {
|
||||
if !n.IsInt {
|
||||
t.Errorf("expected integer for %q", test.text)
|
||||
}
|
||||
if n.Int64 != test.int64 {
|
||||
t.Errorf("int64 for %q should be %d Is %d", test.text, test.int64, n.Int64)
|
||||
}
|
||||
} else if n.IsInt {
|
||||
t.Errorf("did not expect integer for %q", test.text)
|
||||
}
|
||||
if test.isUint {
|
||||
if !n.IsUint {
|
||||
t.Errorf("expected unsigned integer for %q", test.text)
|
||||
}
|
||||
if n.Uint64 != test.uint64 {
|
||||
t.Errorf("uint64 for %q should be %d Is %d", test.text, test.uint64, n.Uint64)
|
||||
}
|
||||
} else if n.IsUint {
|
||||
t.Errorf("did not expect unsigned integer for %q", test.text)
|
||||
}
|
||||
if test.isFloat {
|
||||
if !n.IsFloat {
|
||||
t.Errorf("expected float for %q", test.text)
|
||||
}
|
||||
if n.Float64 != test.float64 {
|
||||
t.Errorf("float64 for %q should be %g Is %g", test.text, test.float64, n.Float64)
|
||||
}
|
||||
} else if n.IsFloat {
|
||||
t.Errorf("did not expect float for %q", test.text)
|
||||
}
|
||||
if test.isComplex {
|
||||
if !n.IsComplex {
|
||||
t.Errorf("expected complex for %q", test.text)
|
||||
}
|
||||
if n.Complex128 != test.complex128 {
|
||||
t.Errorf("complex128 for %q should be %g Is %g", test.text, test.complex128, n.Complex128)
|
||||
}
|
||||
} else if n.IsComplex {
|
||||
t.Errorf("did not expect complex for %q", test.text)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type parseTest struct {
|
||||
name string
|
||||
input string
|
||||
ok bool
|
||||
result string // what the user would see in an error message.
|
||||
}
|
||||
|
||||
const (
|
||||
noError = true
|
||||
hasError = false
|
||||
)
|
||||
|
||||
var parseTests = []parseTest{
|
||||
{"empty", "", noError,
|
||||
``},
|
||||
{"comment", "{{/*\n\n\n*/}}", noError,
|
||||
``},
|
||||
{"spaces", " \t\n", noError,
|
||||
`" \t\n"`},
|
||||
{"text", "some text", noError,
|
||||
`"some text"`},
|
||||
{"emptyAction", "{{}}", hasError,
|
||||
`{{}}`},
|
||||
{"field", "{{.X}}", noError,
|
||||
`{{.X}}`},
|
||||
{"simple command", "{{printf}}", noError,
|
||||
`{{printf}}`},
|
||||
{"$ invocation", "{{$}}", noError,
|
||||
"{{$}}"},
|
||||
{"variable invocation", "{{with $x := 3}}{{$x 23}}{{end}}", noError,
|
||||
"{{with $x := 3}}{{$x 23}}{{end}}"},
|
||||
{"variable with fields", "{{$.I}}", noError,
|
||||
"{{$.I}}"},
|
||||
{"multi-word command", "{{printf `%d` 23}}", noError,
|
||||
"{{printf `%d` 23}}"},
|
||||
{"pipeline", "{{.X|.Y}}", noError,
|
||||
`{{.X | .Y}}`},
|
||||
{"pipeline with decl", "{{$x := .X|.Y}}", noError,
|
||||
`{{$x := .X | .Y}}`},
|
||||
{"nested pipeline", "{{.X (.Y .Z) (.A | .B .C) (.E)}}", noError,
|
||||
`{{.X (.Y .Z) (.A | .B .C) (.E)}}`},
|
||||
{"field applied to parentheses", "{{(.Y .Z).Field}}", noError,
|
||||
`{{(.Y .Z).Field}}`},
|
||||
{"simple if", "{{if .X}}hello{{end}}", noError,
|
||||
`{{if .X}}"hello"{{end}}`},
|
||||
{"if with else", "{{if .X}}true{{else}}false{{end}}", noError,
|
||||
`{{if .X}}"true"{{else}}"false"{{end}}`},
|
||||
{"if with else if", "{{if .X}}true{{else if .Y}}false{{end}}", noError,
|
||||
`{{if .X}}"true"{{else}}{{if .Y}}"false"{{end}}{{end}}`},
|
||||
{"if else chain", "+{{if .X}}X{{else if .Y}}Y{{else if .Z}}Z{{end}}+", noError,
|
||||
`"+"{{if .X}}"X"{{else}}{{if .Y}}"Y"{{else}}{{if .Z}}"Z"{{end}}{{end}}{{end}}"+"`},
|
||||
{"simple range", "{{range .X}}hello{{end}}", noError,
|
||||
`{{range .X}}"hello"{{end}}`},
|
||||
{"chained field range", "{{range .X.Y.Z}}hello{{end}}", noError,
|
||||
`{{range .X.Y.Z}}"hello"{{end}}`},
|
||||
{"nested range", "{{range .X}}hello{{range .Y}}goodbye{{end}}{{end}}", noError,
|
||||
`{{range .X}}"hello"{{range .Y}}"goodbye"{{end}}{{end}}`},
|
||||
{"range with else", "{{range .X}}true{{else}}false{{end}}", noError,
|
||||
`{{range .X}}"true"{{else}}"false"{{end}}`},
|
||||
{"range over pipeline", "{{range .X|.M}}true{{else}}false{{end}}", noError,
|
||||
`{{range .X | .M}}"true"{{else}}"false"{{end}}`},
|
||||
{"range []int", "{{range .SI}}{{.}}{{end}}", noError,
|
||||
`{{range .SI}}{{.}}{{end}}`},
|
||||
{"range 1 var", "{{range $x := .SI}}{{.}}{{end}}", noError,
|
||||
`{{range $x := .SI}}{{.}}{{end}}`},
|
||||
{"range 2 vars", "{{range $x, $y := .SI}}{{.}}{{end}}", noError,
|
||||
`{{range $x, $y := .SI}}{{.}}{{end}}`},
|
||||
{"constants", "{{range .SI 1 -3.2i true false 'a' nil}}{{end}}", noError,
|
||||
`{{range .SI 1 -3.2i true false 'a' nil}}{{end}}`},
|
||||
{"template", "{{template `x`}}", noError,
|
||||
`{{template "x"}}`},
|
||||
{"template with arg", "{{template `x` .Y}}", noError,
|
||||
`{{template "x" .Y}}`},
|
||||
{"with", "{{with .X}}hello{{end}}", noError,
|
||||
`{{with .X}}"hello"{{end}}`},
|
||||
{"with with else", "{{with .X}}hello{{else}}goodbye{{end}}", noError,
|
||||
`{{with .X}}"hello"{{else}}"goodbye"{{end}}`},
|
||||
{"elide newline", "{{true}}\\\n ", noError,
|
||||
`{{true}}" "`},
|
||||
// Errors.
|
||||
{"unclosed action", "hello{{range", hasError, ""},
|
||||
{"unmatched end", "{{end}}", hasError, ""},
|
||||
{"missing end", "hello{{range .x}}", hasError, ""},
|
||||
{"missing end after else", "hello{{range .x}}{{else}}", hasError, ""},
|
||||
{"undefined function", "hello{{undefined}}", hasError, ""},
|
||||
{"undefined variable", "{{$x}}", hasError, ""},
|
||||
{"variable undefined after end", "{{with $x := 4}}{{end}}{{$x}}", hasError, ""},
|
||||
{"variable undefined in template", "{{template $v}}", hasError, ""},
|
||||
{"declare with field", "{{with $x.Y := 4}}{{end}}", hasError, ""},
|
||||
{"template with field ref", "{{template .X}}", hasError, ""},
|
||||
{"template with var", "{{template $v}}", hasError, ""},
|
||||
{"invalid punctuation", "{{printf 3, 4}}", hasError, ""},
|
||||
{"multidecl outside range", "{{with $v, $u := 3}}{{end}}", hasError, ""},
|
||||
{"too many decls in range", "{{range $u, $v, $w := 3}}{{end}}", hasError, ""},
|
||||
{"dot applied to parentheses", "{{printf (printf .).}}", hasError, ""},
|
||||
{"adjacent args", "{{printf 3`x`}}", hasError, ""},
|
||||
{"adjacent args with .", "{{printf `x`.}}", hasError, ""},
|
||||
{"extra end after if", "{{if .X}}a{{else if .Y}}b{{end}}{{end}}", hasError, ""},
|
||||
{"invalid newline elision", "{{true}}\\{{true}}", hasError, ""},
|
||||
// Equals (and other chars) do not assignments make (yet).
|
||||
{"bug0a", "{{$x := 0}}{{$x}}", noError, "{{$x := 0}}{{$x}}"},
|
||||
{"bug0b", "{{$x = 1}}{{$x}}", hasError, ""},
|
||||
{"bug0c", "{{$x ! 2}}{{$x}}", hasError, ""},
|
||||
{"bug0d", "{{$x % 3}}{{$x}}", hasError, ""},
|
||||
// Check the parse fails for := rather than comma.
|
||||
{"bug0e", "{{range $x := $y := 3}}{{end}}", hasError, ""},
|
||||
// Another bug: variable read must ignore following punctuation.
|
||||
{"bug1a", "{{$x:=.}}{{$x!2}}", hasError, ""}, // ! is just illegal here.
|
||||
{"bug1b", "{{$x:=.}}{{$x+2}}", hasError, ""}, // $x+2 should not parse as ($x) (+2).
|
||||
{"bug1c", "{{$x:=.}}{{$x +2}}", noError, "{{$x := .}}{{$x +2}}"}, // It's OK with a space.
|
||||
}
|
||||
|
||||
var builtins = map[string]interface{}{
|
||||
"printf": fmt.Sprintf,
|
||||
}
|
||||
|
||||
func testParse(doCopy bool, t *testing.T) {
|
||||
textFormat = "%q"
|
||||
defer func() { textFormat = "%s" }()
|
||||
for _, test := range parseTests {
|
||||
tmpl, err := New(test.name).Parse(test.input, "", "", make(map[string]*Tree), builtins)
|
||||
switch {
|
||||
case err == nil && !test.ok:
|
||||
t.Errorf("%q: expected error; got none", test.name)
|
||||
continue
|
||||
case err != nil && test.ok:
|
||||
t.Errorf("%q: unexpected error: %v", test.name, err)
|
||||
continue
|
||||
case err != nil && !test.ok:
|
||||
// expected error, got one
|
||||
if *debug {
|
||||
fmt.Printf("%s: %s\n\t%s\n", test.name, test.input, err)
|
||||
}
|
||||
continue
|
||||
}
|
||||
var result string
|
||||
if doCopy {
|
||||
result = tmpl.Root.Copy().String()
|
||||
} else {
|
||||
result = tmpl.Root.String()
|
||||
}
|
||||
if result != test.result {
|
||||
t.Errorf("%s=(%q): got\n\t%v\nexpected\n\t%v", test.name, test.input, result, test.result)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestParse(t *testing.T) {
|
||||
testParse(false, t)
|
||||
}
|
||||
|
||||
// Same as TestParse, but we copy the node first
|
||||
func TestParseCopy(t *testing.T) {
|
||||
testParse(true, t)
|
||||
}
|
||||
|
||||
type isEmptyTest struct {
|
||||
name string
|
||||
input string
|
||||
empty bool
|
||||
}
|
||||
|
||||
var isEmptyTests = []isEmptyTest{
|
||||
{"empty", ``, true},
|
||||
{"nonempty", `hello`, false},
|
||||
{"spaces only", " \t\n \t\n", true},
|
||||
{"definition", `{{define "x"}}something{{end}}`, true},
|
||||
{"definitions and space", "{{define `x`}}something{{end}}\n\n{{define `y`}}something{{end}}\n\n", true},
|
||||
{"definitions and text", "{{define `x`}}something{{end}}\nx\n{{define `y`}}something{{end}}\ny\n", false},
|
||||
{"definition and action", "{{define `x`}}something{{end}}{{if 3}}foo{{end}}", false},
|
||||
}
|
||||
|
||||
func TestIsEmpty(t *testing.T) {
|
||||
if !IsEmptyTree(nil) {
|
||||
t.Errorf("nil tree is not empty")
|
||||
}
|
||||
for _, test := range isEmptyTests {
|
||||
tree, err := New("root").Parse(test.input, "", "", make(map[string]*Tree), nil)
|
||||
if err != nil {
|
||||
t.Errorf("%q: unexpected error: %v", test.name, err)
|
||||
continue
|
||||
}
|
||||
if empty := IsEmptyTree(tree.Root); empty != test.empty {
|
||||
t.Errorf("%q: expected %t got %t", test.name, test.empty, empty)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestErrorContextWithTreeCopy(t *testing.T) {
|
||||
tree, err := New("root").Parse("{{if true}}{{end}}", "", "", make(map[string]*Tree), nil)
|
||||
if err != nil {
|
||||
t.Fatalf("unexpected tree parse failure: %v", err)
|
||||
}
|
||||
treeCopy := tree.Copy()
|
||||
wantLocation, wantContext := tree.ErrorContext(tree.Root.Nodes[0])
|
||||
gotLocation, gotContext := treeCopy.ErrorContext(treeCopy.Root.Nodes[0])
|
||||
if wantLocation != gotLocation {
|
||||
t.Errorf("wrong error location want %q got %q", wantLocation, gotLocation)
|
||||
}
|
||||
if wantContext != gotContext {
|
||||
t.Errorf("wrong error location want %q got %q", wantContext, gotContext)
|
||||
}
|
||||
}
|
||||
|
||||
// All failures, and the result is a string that must appear in the error message.
|
||||
var errorTests = []parseTest{
|
||||
// Check line numbers are accurate.
|
||||
{"unclosed1",
|
||||
"line1\n{{",
|
||||
hasError, `unclosed1:2: unexpected unclosed action in command`},
|
||||
{"unclosed2",
|
||||
"line1\n{{define `x`}}line2\n{{",
|
||||
hasError, `unclosed2:3: unexpected unclosed action in command`},
|
||||
// Specific errors.
|
||||
{"function",
|
||||
"{{foo}}",
|
||||
hasError, `function "foo" not defined`},
|
||||
{"comment",
|
||||
"{{/*}}",
|
||||
hasError, `unclosed comment`},
|
||||
{"lparen",
|
||||
"{{.X (1 2 3}}",
|
||||
hasError, `unclosed left paren`},
|
||||
{"rparen",
|
||||
"{{.X 1 2 3)}}",
|
||||
hasError, `unexpected ")"`},
|
||||
{"space",
|
||||
"{{`x`3}}",
|
||||
hasError, `missing space?`},
|
||||
{"idchar",
|
||||
"{{a#}}",
|
||||
hasError, `'#'`},
|
||||
{"charconst",
|
||||
"{{'a}}",
|
||||
hasError, `unterminated character constant`},
|
||||
{"stringconst",
|
||||
`{{"a}}`,
|
||||
hasError, `unterminated quoted string`},
|
||||
{"rawstringconst",
|
||||
"{{`a}}",
|
||||
hasError, `unterminated raw quoted string`},
|
||||
{"number",
|
||||
"{{0xi}}",
|
||||
hasError, `number syntax`},
|
||||
{"multidefine",
|
||||
"{{define `a`}}a{{end}}{{define `a`}}b{{end}}",
|
||||
hasError, `multiple definition of template`},
|
||||
{"eof",
|
||||
"{{range .X}}",
|
||||
hasError, `unexpected EOF`},
|
||||
{"variable",
|
||||
// Declare $x so it's defined, to avoid that error, and then check we don't parse a declaration.
|
||||
"{{$x := 23}}{{with $x.y := 3}}{{$x 23}}{{end}}",
|
||||
hasError, `unexpected ":="`},
|
||||
{"multidecl",
|
||||
"{{$a,$b,$c := 23}}",
|
||||
hasError, `too many declarations`},
|
||||
{"undefvar",
|
||||
"{{$a}}",
|
||||
hasError, `undefined variable`},
|
||||
}
|
||||
|
||||
func TestErrors(t *testing.T) {
|
||||
for _, test := range errorTests {
|
||||
_, err := New(test.name).Parse(test.input, "", "", make(map[string]*Tree))
|
||||
if err == nil {
|
||||
t.Errorf("%q: expected error", test.name)
|
||||
continue
|
||||
}
|
||||
if !strings.Contains(err.Error(), test.result) {
|
||||
t.Errorf("%q: error %q does not contain %q", test.name, err, test.result)
|
||||
}
|
||||
}
|
||||
}
|
||||
-218
@@ -1,218 +0,0 @@
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package template
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
|
||||
"github.com/alecthomas/template/parse"
|
||||
)
|
||||
|
||||
// common holds the information shared by related templates.
|
||||
type common struct {
|
||||
tmpl map[string]*Template
|
||||
// We use two maps, one for parsing and one for execution.
|
||||
// This separation makes the API cleaner since it doesn't
|
||||
// expose reflection to the client.
|
||||
parseFuncs FuncMap
|
||||
execFuncs map[string]reflect.Value
|
||||
}
|
||||
|
||||
// Template is the representation of a parsed template. The *parse.Tree
|
||||
// field is exported only for use by html/template and should be treated
|
||||
// as unexported by all other clients.
|
||||
type Template struct {
|
||||
name string
|
||||
*parse.Tree
|
||||
*common
|
||||
leftDelim string
|
||||
rightDelim string
|
||||
}
|
||||
|
||||
// New allocates a new template with the given name.
|
||||
func New(name string) *Template {
|
||||
return &Template{
|
||||
name: name,
|
||||
}
|
||||
}
|
||||
|
||||
// Name returns the name of the template.
|
||||
func (t *Template) Name() string {
|
||||
return t.name
|
||||
}
|
||||
|
||||
// New allocates a new template associated with the given one and with the same
|
||||
// delimiters. The association, which is transitive, allows one template to
|
||||
// invoke another with a {{template}} action.
|
||||
func (t *Template) New(name string) *Template {
|
||||
t.init()
|
||||
return &Template{
|
||||
name: name,
|
||||
common: t.common,
|
||||
leftDelim: t.leftDelim,
|
||||
rightDelim: t.rightDelim,
|
||||
}
|
||||
}
|
||||
|
||||
func (t *Template) init() {
|
||||
if t.common == nil {
|
||||
t.common = new(common)
|
||||
t.tmpl = make(map[string]*Template)
|
||||
t.parseFuncs = make(FuncMap)
|
||||
t.execFuncs = make(map[string]reflect.Value)
|
||||
}
|
||||
}
|
||||
|
||||
// Clone returns a duplicate of the template, including all associated
|
||||
// templates. The actual representation is not copied, but the name space of
|
||||
// associated templates is, so further calls to Parse in the copy will add
|
||||
// templates to the copy but not to the original. Clone can be used to prepare
|
||||
// common templates and use them with variant definitions for other templates
|
||||
// by adding the variants after the clone is made.
|
||||
func (t *Template) Clone() (*Template, error) {
|
||||
nt := t.copy(nil)
|
||||
nt.init()
|
||||
nt.tmpl[t.name] = nt
|
||||
for k, v := range t.tmpl {
|
||||
if k == t.name { // Already installed.
|
||||
continue
|
||||
}
|
||||
// The associated templates share nt's common structure.
|
||||
tmpl := v.copy(nt.common)
|
||||
nt.tmpl[k] = tmpl
|
||||
}
|
||||
for k, v := range t.parseFuncs {
|
||||
nt.parseFuncs[k] = v
|
||||
}
|
||||
for k, v := range t.execFuncs {
|
||||
nt.execFuncs[k] = v
|
||||
}
|
||||
return nt, nil
|
||||
}
|
||||
|
||||
// copy returns a shallow copy of t, with common set to the argument.
|
||||
func (t *Template) copy(c *common) *Template {
|
||||
nt := New(t.name)
|
||||
nt.Tree = t.Tree
|
||||
nt.common = c
|
||||
nt.leftDelim = t.leftDelim
|
||||
nt.rightDelim = t.rightDelim
|
||||
return nt
|
||||
}
|
||||
|
||||
// AddParseTree creates a new template with the name and parse tree
|
||||
// and associates it with t.
|
||||
func (t *Template) AddParseTree(name string, tree *parse.Tree) (*Template, error) {
|
||||
if t.common != nil && t.tmpl[name] != nil {
|
||||
return nil, fmt.Errorf("template: redefinition of template %q", name)
|
||||
}
|
||||
nt := t.New(name)
|
||||
nt.Tree = tree
|
||||
t.tmpl[name] = nt
|
||||
return nt, nil
|
||||
}
|
||||
|
||||
// Templates returns a slice of the templates associated with t, including t
|
||||
// itself.
|
||||
func (t *Template) Templates() []*Template {
|
||||
if t.common == nil {
|
||||
return nil
|
||||
}
|
||||
// Return a slice so we don't expose the map.
|
||||
m := make([]*Template, 0, len(t.tmpl))
|
||||
for _, v := range t.tmpl {
|
||||
m = append(m, v)
|
||||
}
|
||||
return m
|
||||
}
|
||||
|
||||
// Delims sets the action delimiters to the specified strings, to be used in
|
||||
// subsequent calls to Parse, ParseFiles, or ParseGlob. Nested template
|
||||
// definitions will inherit the settings. An empty delimiter stands for the
|
||||
// corresponding default: {{ or }}.
|
||||
// The return value is the template, so calls can be chained.
|
||||
func (t *Template) Delims(left, right string) *Template {
|
||||
t.leftDelim = left
|
||||
t.rightDelim = right
|
||||
return t
|
||||
}
|
||||
|
||||
// Funcs adds the elements of the argument map to the template's function map.
|
||||
// It panics if a value in the map is not a function with appropriate return
|
||||
// type. However, it is legal to overwrite elements of the map. The return
|
||||
// value is the template, so calls can be chained.
|
||||
func (t *Template) Funcs(funcMap FuncMap) *Template {
|
||||
t.init()
|
||||
addValueFuncs(t.execFuncs, funcMap)
|
||||
addFuncs(t.parseFuncs, funcMap)
|
||||
return t
|
||||
}
|
||||
|
||||
// Lookup returns the template with the given name that is associated with t,
|
||||
// or nil if there is no such template.
|
||||
func (t *Template) Lookup(name string) *Template {
|
||||
if t.common == nil {
|
||||
return nil
|
||||
}
|
||||
return t.tmpl[name]
|
||||
}
|
||||
|
||||
// Parse parses a string into a template. Nested template definitions will be
|
||||
// associated with the top-level template t. Parse may be called multiple times
|
||||
// to parse definitions of templates to associate with t. It is an error if a
|
||||
// resulting template is non-empty (contains content other than template
|
||||
// definitions) and would replace a non-empty template with the same name.
|
||||
// (In multiple calls to Parse with the same receiver template, only one call
|
||||
// can contain text other than space, comments, and template definitions.)
|
||||
func (t *Template) Parse(text string) (*Template, error) {
|
||||
t.init()
|
||||
trees, err := parse.Parse(t.name, text, t.leftDelim, t.rightDelim, t.parseFuncs, builtins)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
// Add the newly parsed trees, including the one for t, into our common structure.
|
||||
for name, tree := range trees {
|
||||
// If the name we parsed is the name of this template, overwrite this template.
|
||||
// The associate method checks it's not a redefinition.
|
||||
tmpl := t
|
||||
if name != t.name {
|
||||
tmpl = t.New(name)
|
||||
}
|
||||
// Even if t == tmpl, we need to install it in the common.tmpl map.
|
||||
if replace, err := t.associate(tmpl, tree); err != nil {
|
||||
return nil, err
|
||||
} else if replace {
|
||||
tmpl.Tree = tree
|
||||
}
|
||||
tmpl.leftDelim = t.leftDelim
|
||||
tmpl.rightDelim = t.rightDelim
|
||||
}
|
||||
return t, nil
|
||||
}
|
||||
|
||||
// associate installs the new template into the group of templates associated
|
||||
// with t. It is an error to reuse a name except to overwrite an empty
|
||||
// template. The two are already known to share the common structure.
|
||||
// The boolean return value reports wither to store this tree as t.Tree.
|
||||
func (t *Template) associate(new *Template, tree *parse.Tree) (bool, error) {
|
||||
if new.common != t.common {
|
||||
panic("internal error: associate not common")
|
||||
}
|
||||
name := new.name
|
||||
if old := t.tmpl[name]; old != nil {
|
||||
oldIsEmpty := parse.IsEmptyTree(old.Root)
|
||||
newIsEmpty := parse.IsEmptyTree(tree.Root)
|
||||
if newIsEmpty {
|
||||
// Whether old is empty or not, new is empty; no reason to replace old.
|
||||
return false, nil
|
||||
}
|
||||
if !oldIsEmpty {
|
||||
return false, fmt.Errorf("template: redefinition of template %q", name)
|
||||
}
|
||||
}
|
||||
t.tmpl[name] = new
|
||||
return true, nil
|
||||
}
|
||||
-2
@@ -1,2 +0,0 @@
|
||||
{{define "x"}}TEXT{{end}}
|
||||
{{define "dotV"}}{{.V}}{{end}}
|
||||
-2
@@ -1,2 +0,0 @@
|
||||
{{define "dot"}}{{.}}{{end}}
|
||||
{{define "nested"}}{{template "dot" .}}{{end}}
|
||||
-3
@@ -1,3 +0,0 @@
|
||||
template1
|
||||
{{define "x"}}x{{end}}
|
||||
{{template "y"}}
|
||||
-3
@@ -1,3 +0,0 @@
|
||||
template2
|
||||
{{define "y"}}y{{end}}
|
||||
{{template "x"}}
|
||||
-1
@@ -1 +0,0 @@
|
||||
.DS_Store
|
||||
-23
@@ -1,23 +0,0 @@
|
||||
Copyright (c) 2013 John Barton
|
||||
|
||||
MIT License
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining
|
||||
a copy of this software and associated documentation files (the
|
||||
"Software"), to deal in the Software without restriction, including
|
||||
without limitation the rights to use, copy, modify, merge, publish,
|
||||
distribute, sublicense, and/or sell copies of the Software, and to
|
||||
permit persons to whom the Software is furnished to do so, subject to
|
||||
the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be
|
||||
included in all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
||||
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
|
||||
-127
@@ -1,127 +0,0 @@
|
||||
# GoDotEnv [](https://app.wercker.com/project/bykey/507594c2ec7e60f19403a568dfea0f78)
|
||||
|
||||
A Go (golang) port of the Ruby dotenv project (which loads env vars from a .env file)
|
||||
|
||||
From the original Library:
|
||||
|
||||
> Storing configuration in the environment is one of the tenets of a twelve-factor app. Anything that is likely to change between deployment environments–such as resource handles for databases or credentials for external services–should be extracted from the code into environment variables.
|
||||
>
|
||||
> But it is not always practical to set environment variables on development machines or continuous integration servers where multiple projects are run. Dotenv load variables from a .env file into ENV when the environment is bootstrapped.
|
||||
|
||||
It can be used as a library (for loading in env for your own daemons etc) or as a bin command.
|
||||
|
||||
There is test coverage and CI for both linuxish and windows environments, but I make no guarantees about the bin version working on windows.
|
||||
|
||||
## Installation
|
||||
|
||||
As a library
|
||||
|
||||
```shell
|
||||
go get github.com/joho/godotenv
|
||||
```
|
||||
|
||||
or if you want to use it as a bin command
|
||||
```shell
|
||||
go get github.com/joho/godotenv/cmd/godotenv
|
||||
```
|
||||
|
||||
## Usage
|
||||
|
||||
Add your application configuration to your `.env` file in the root of your project:
|
||||
|
||||
```shell
|
||||
S3_BUCKET=YOURS3BUCKET
|
||||
SECRET_KEY=YOURSECRETKEYGOESHERE
|
||||
```
|
||||
|
||||
Then in your Go app you can do something like
|
||||
|
||||
```go
|
||||
package main
|
||||
|
||||
import (
|
||||
"github.com/joho/godotenv"
|
||||
"log"
|
||||
"os"
|
||||
)
|
||||
|
||||
func main() {
|
||||
err := godotenv.Load()
|
||||
if err != nil {
|
||||
log.Fatal("Error loading .env file")
|
||||
}
|
||||
|
||||
s3Bucket := os.Getenv("S3_BUCKET")
|
||||
secretKey := os.Getenv("SECRET_KEY")
|
||||
|
||||
// now do something with s3 or whatever
|
||||
}
|
||||
```
|
||||
|
||||
If you're even lazier than that, you can just take advantage of the autoload package which will read in `.env` on import
|
||||
|
||||
```go
|
||||
import _ "github.com/joho/godotenv/autoload"
|
||||
```
|
||||
|
||||
While `.env` in the project root is the default, you don't have to be constrained, both examples below are 100% legit
|
||||
|
||||
```go
|
||||
_ = godotenv.Load("somerandomfile")
|
||||
_ = godotenv.Load("filenumberone.env", "filenumbertwo.env")
|
||||
```
|
||||
|
||||
If you want to be really fancy with your env file you can do comments and exports (below is a valid env file)
|
||||
|
||||
```shell
|
||||
# I am a comment and that is OK
|
||||
SOME_VAR=someval
|
||||
FOO=BAR # comments at line end are OK too
|
||||
export BAR=BAZ
|
||||
```
|
||||
|
||||
Or finally you can do YAML(ish) style
|
||||
|
||||
```yaml
|
||||
FOO: bar
|
||||
BAR: baz
|
||||
```
|
||||
|
||||
as a final aside, if you don't want godotenv munging your env you can just get a map back instead
|
||||
|
||||
```go
|
||||
var myEnv map[string]string
|
||||
myEnv, err := godotenv.Read()
|
||||
|
||||
s3Bucket := myEnv["S3_BUCKET"]
|
||||
```
|
||||
|
||||
### Command Mode
|
||||
|
||||
Assuming you've installed the command as above and you've got `$GOPATH/bin` in your `$PATH`
|
||||
|
||||
```
|
||||
godotenv -f /some/path/to/.env some_command with some args
|
||||
```
|
||||
|
||||
If you don't specify `-f` it will fall back on the default of loading `.env` in `PWD`
|
||||
|
||||
## Contributing
|
||||
|
||||
Contributions are most welcome! The parser itself is pretty stupidly naive and I wouldn't be surprised if it breaks with edge cases.
|
||||
|
||||
*code changes without tests will not be accepted*
|
||||
|
||||
1. Fork it
|
||||
2. Create your feature branch (`git checkout -b my-new-feature`)
|
||||
3. Commit your changes (`git commit -am 'Added some feature'`)
|
||||
4. Push to the branch (`git push origin my-new-feature`)
|
||||
5. Create new Pull Request
|
||||
|
||||
## CI
|
||||
|
||||
Linux: [](https://app.wercker.com/project/bykey/507594c2ec7e60f19403a568dfea0f78) Windows: [](https://ci.appveyor.com/project/joho/godotenv)
|
||||
|
||||
## Who?
|
||||
|
||||
The original library [dotenv](https://github.com/bkeepers/dotenv) was written by [Brandon Keepers](http://opensoul.org/), and this port was done by [John Barton](http://whoisjohnbarton.com) based off the tests/fixtures in the original library.
|
||||
-15
@@ -1,15 +0,0 @@
|
||||
package autoload
|
||||
|
||||
/*
|
||||
You can just read the .env file on import just by doing
|
||||
|
||||
import _ "github.com/joho/godotenv/autoload"
|
||||
|
||||
And bob's your mother's brother
|
||||
*/
|
||||
|
||||
import "github.com/joho/godotenv"
|
||||
|
||||
func init() {
|
||||
godotenv.Load()
|
||||
}
|
||||
-54
@@ -1,54 +0,0 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"fmt"
|
||||
"log"
|
||||
|
||||
"strings"
|
||||
|
||||
"github.com/joho/godotenv"
|
||||
)
|
||||
|
||||
func main() {
|
||||
var showHelp bool
|
||||
flag.BoolVar(&showHelp, "h", false, "show help")
|
||||
var rawEnvFilenames string
|
||||
flag.StringVar(&rawEnvFilenames, "f", "", "comma separated paths to .env files")
|
||||
|
||||
flag.Parse()
|
||||
|
||||
usage := `
|
||||
Run a process with a env setup from a .env file
|
||||
|
||||
godotenv [-f ENV_FILE_PATHS] COMMAND_ARGS
|
||||
|
||||
ENV_FILE_PATHS: comma separated paths to .env files
|
||||
COMMAND_ARGS: command and args you want to run
|
||||
|
||||
example
|
||||
godotenv -f /path/to/something/.env,/another/path/.env fortune
|
||||
`
|
||||
// if no args or -h flag
|
||||
// print usage and return
|
||||
args := flag.Args()
|
||||
if showHelp || len(args) == 0 {
|
||||
fmt.Println(usage)
|
||||
return
|
||||
}
|
||||
|
||||
// load env
|
||||
var envFilenames []string
|
||||
if rawEnvFilenames != "" {
|
||||
envFilenames = strings.Split(rawEnvFilenames, ",")
|
||||
}
|
||||
|
||||
// take rest of args and "exec" them
|
||||
cmd := args[0]
|
||||
cmdArgs := args[1:]
|
||||
|
||||
err := godotenv.Exec(envFilenames, cmd, cmdArgs)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
}
|
||||
-2
@@ -1,2 +0,0 @@
|
||||
export OPTION_A='postgres://localhost:5432/database?sslmode=disable'
|
||||
|
||||
-2
@@ -1,2 +0,0 @@
|
||||
export OPTION_A=2
|
||||
export OPTION_B='\n'
|
||||
-2
@@ -1,2 +0,0 @@
|
||||
INVALID LINE
|
||||
foo=bar
|
||||
-5
@@ -1,5 +0,0 @@
|
||||
OPTION_A=1
|
||||
OPTION_B=2
|
||||
OPTION_C= 3
|
||||
OPTION_D =4
|
||||
OPTION_E = 5
|
||||
-8
@@ -1,8 +0,0 @@
|
||||
OPTION_A='1'
|
||||
OPTION_B='2'
|
||||
OPTION_C=''
|
||||
OPTION_D='\n'
|
||||
OPTION_E="1"
|
||||
OPTION_F="2"
|
||||
OPTION_G=""
|
||||
OPTION_H="\n"
|
||||
-235
@@ -1,235 +0,0 @@
|
||||
// Package godotenv is a go port of the ruby dotenv library (https://github.com/bkeepers/dotenv)
|
||||
//
|
||||
// Examples/readme can be found on the github page at https://github.com/joho/godotenv
|
||||
//
|
||||
// The TL;DR is that you make a .env file that looks something like
|
||||
//
|
||||
// SOME_ENV_VAR=somevalue
|
||||
//
|
||||
// and then in your go code you can call
|
||||
//
|
||||
// godotenv.Load()
|
||||
//
|
||||
// and all the env vars declared in .env will be avaiable through os.Getenv("SOME_ENV_VAR")
|
||||
package godotenv
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"errors"
|
||||
"os"
|
||||
"os/exec"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// Load will read your env file(s) and load them into ENV for this process.
|
||||
//
|
||||
// Call this function as close as possible to the start of your program (ideally in main)
|
||||
//
|
||||
// If you call Load without any args it will default to loading .env in the current path
|
||||
//
|
||||
// You can otherwise tell it which files to load (there can be more than one) like
|
||||
//
|
||||
// godotenv.Load("fileone", "filetwo")
|
||||
//
|
||||
// It's important to note that it WILL NOT OVERRIDE an env variable that already exists - consider the .env file to set dev vars or sensible defaults
|
||||
func Load(filenames ...string) (err error) {
|
||||
filenames = filenamesOrDefault(filenames)
|
||||
|
||||
for _, filename := range filenames {
|
||||
err = loadFile(filename, false)
|
||||
if err != nil {
|
||||
return // return early on a spazout
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// Overload will read your env file(s) and load them into ENV for this process.
|
||||
//
|
||||
// Call this function as close as possible to the start of your program (ideally in main)
|
||||
//
|
||||
// If you call Overload without any args it will default to loading .env in the current path
|
||||
//
|
||||
// You can otherwise tell it which files to load (there can be more than one) like
|
||||
//
|
||||
// godotenv.Overload("fileone", "filetwo")
|
||||
//
|
||||
// It's important to note this WILL OVERRIDE an env variable that already exists - consider the .env file to forcefilly set all vars.
|
||||
func Overload(filenames ...string) (err error) {
|
||||
filenames = filenamesOrDefault(filenames)
|
||||
|
||||
for _, filename := range filenames {
|
||||
err = loadFile(filename, true)
|
||||
if err != nil {
|
||||
return // return early on a spazout
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// Read all env (with same file loading semantics as Load) but return values as
|
||||
// a map rather than automatically writing values into env
|
||||
func Read(filenames ...string) (envMap map[string]string, err error) {
|
||||
filenames = filenamesOrDefault(filenames)
|
||||
envMap = make(map[string]string)
|
||||
|
||||
for _, filename := range filenames {
|
||||
individualEnvMap, individualErr := readFile(filename)
|
||||
|
||||
if individualErr != nil {
|
||||
err = individualErr
|
||||
return // return early on a spazout
|
||||
}
|
||||
|
||||
for key, value := range individualEnvMap {
|
||||
envMap[key] = value
|
||||
}
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
// Exec loads env vars from the specified filenames (empty map falls back to default)
|
||||
// then executes the cmd specified.
|
||||
//
|
||||
// Simply hooks up os.Stdin/err/out to the command and calls Run()
|
||||
//
|
||||
// If you want more fine grained control over your command it's recommended
|
||||
// that you use `Load()` or `Read()` and the `os/exec` package yourself.
|
||||
func Exec(filenames []string, cmd string, cmdArgs []string) error {
|
||||
Load(filenames...)
|
||||
|
||||
command := exec.Command(cmd, cmdArgs...)
|
||||
command.Stdin = os.Stdin
|
||||
command.Stdout = os.Stdout
|
||||
command.Stderr = os.Stderr
|
||||
return command.Run()
|
||||
}
|
||||
|
||||
func filenamesOrDefault(filenames []string) []string {
|
||||
if len(filenames) == 0 {
|
||||
return []string{".env"}
|
||||
}
|
||||
return filenames
|
||||
}
|
||||
|
||||
func loadFile(filename string, overload bool) error {
|
||||
envMap, err := readFile(filename)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
for key, value := range envMap {
|
||||
if os.Getenv(key) == "" || overload {
|
||||
os.Setenv(key, value)
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func readFile(filename string) (envMap map[string]string, err error) {
|
||||
file, err := os.Open(filename)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
defer file.Close()
|
||||
|
||||
envMap = make(map[string]string)
|
||||
|
||||
var lines []string
|
||||
scanner := bufio.NewScanner(file)
|
||||
for scanner.Scan() {
|
||||
lines = append(lines, scanner.Text())
|
||||
}
|
||||
|
||||
if err = scanner.Err(); err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
for _, fullLine := range lines {
|
||||
if !isIgnoredLine(fullLine) {
|
||||
var key, value string
|
||||
key, value, err = parseLine(fullLine)
|
||||
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
envMap[key] = value
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func parseLine(line string) (key string, value string, err error) {
|
||||
if len(line) == 0 {
|
||||
err = errors.New("zero length string")
|
||||
return
|
||||
}
|
||||
|
||||
// ditch the comments (but keep quoted hashes)
|
||||
if strings.Contains(line, "#") {
|
||||
segmentsBetweenHashes := strings.Split(line, "#")
|
||||
quotesAreOpen := false
|
||||
var segmentsToKeep []string
|
||||
for _, segment := range segmentsBetweenHashes {
|
||||
if strings.Count(segment, "\"") == 1 || strings.Count(segment, "'") == 1 {
|
||||
if quotesAreOpen {
|
||||
quotesAreOpen = false
|
||||
segmentsToKeep = append(segmentsToKeep, segment)
|
||||
} else {
|
||||
quotesAreOpen = true
|
||||
}
|
||||
}
|
||||
|
||||
if len(segmentsToKeep) == 0 || quotesAreOpen {
|
||||
segmentsToKeep = append(segmentsToKeep, segment)
|
||||
}
|
||||
}
|
||||
|
||||
line = strings.Join(segmentsToKeep, "#")
|
||||
}
|
||||
|
||||
// now split key from value
|
||||
splitString := strings.SplitN(line, "=", 2)
|
||||
|
||||
if len(splitString) != 2 {
|
||||
// try yaml mode!
|
||||
splitString = strings.SplitN(line, ":", 2)
|
||||
}
|
||||
|
||||
if len(splitString) != 2 {
|
||||
err = errors.New("Can't separate key from value")
|
||||
return
|
||||
}
|
||||
|
||||
// Parse the key
|
||||
key = splitString[0]
|
||||
if strings.HasPrefix(key, "export") {
|
||||
key = strings.TrimPrefix(key, "export")
|
||||
}
|
||||
key = strings.Trim(key, " ")
|
||||
|
||||
// Parse the value
|
||||
value = splitString[1]
|
||||
// trim
|
||||
value = strings.Trim(value, " ")
|
||||
|
||||
// check if we've got quoted values
|
||||
if strings.Count(value, "\"") == 2 || strings.Count(value, "'") == 2 {
|
||||
// pull the quotes off the edges
|
||||
value = strings.Trim(value, "\"'")
|
||||
|
||||
// expand quotes
|
||||
value = strings.Replace(value, "\\\"", "\"", -1)
|
||||
// expand newlines
|
||||
value = strings.Replace(value, "\\n", "\n", -1)
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
func isIgnoredLine(line string) bool {
|
||||
trimmedLine := strings.Trim(line, " \n\t")
|
||||
return len(trimmedLine) == 0 || strings.HasPrefix(trimmedLine, "#")
|
||||
}
|
||||
-288
@@ -1,288 +0,0 @@
|
||||
package godotenv
|
||||
|
||||
import (
|
||||
"os"
|
||||
"testing"
|
||||
)
|
||||
|
||||
var noopPresets = make(map[string]string)
|
||||
|
||||
func parseAndCompare(t *testing.T, rawEnvLine string, expectedKey string, expectedValue string) {
|
||||
key, value, _ := parseLine(rawEnvLine)
|
||||
if key != expectedKey || value != expectedValue {
|
||||
t.Errorf("Expected '%v' to parse as '%v' => '%v', got '%v' => '%v' instead", rawEnvLine, expectedKey, expectedValue, key, value)
|
||||
}
|
||||
}
|
||||
|
||||
func loadEnvAndCompareValues(t *testing.T, loader func(files ...string) error, envFileName string, expectedValues map[string]string, presets map[string]string) {
|
||||
// first up, clear the env
|
||||
os.Clearenv()
|
||||
|
||||
for k, v := range presets {
|
||||
os.Setenv(k, v)
|
||||
}
|
||||
|
||||
err := loader(envFileName)
|
||||
if err != nil {
|
||||
t.Fatalf("Error loading %v", envFileName)
|
||||
}
|
||||
|
||||
for k := range expectedValues {
|
||||
envValue := os.Getenv(k)
|
||||
v := expectedValues[k]
|
||||
if envValue != v {
|
||||
t.Errorf("Mismatch for key '%v': expected '%v' got '%v'", k, v, envValue)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestLoadWithNoArgsLoadsDotEnv(t *testing.T) {
|
||||
err := Load()
|
||||
pathError := err.(*os.PathError)
|
||||
if pathError == nil || pathError.Op != "open" || pathError.Path != ".env" {
|
||||
t.Errorf("Didn't try and open .env by default")
|
||||
}
|
||||
}
|
||||
|
||||
func TestOverloadWithNoArgsOverloadsDotEnv(t *testing.T) {
|
||||
err := Overload()
|
||||
pathError := err.(*os.PathError)
|
||||
if pathError == nil || pathError.Op != "open" || pathError.Path != ".env" {
|
||||
t.Errorf("Didn't try and open .env by default")
|
||||
}
|
||||
}
|
||||
|
||||
func TestLoadFileNotFound(t *testing.T) {
|
||||
err := Load("somefilethatwillneverexistever.env")
|
||||
if err == nil {
|
||||
t.Error("File wasn't found but Load didn't return an error")
|
||||
}
|
||||
}
|
||||
|
||||
func TestOverloadFileNotFound(t *testing.T) {
|
||||
err := Overload("somefilethatwillneverexistever.env")
|
||||
if err == nil {
|
||||
t.Error("File wasn't found but Overload didn't return an error")
|
||||
}
|
||||
}
|
||||
|
||||
func TestReadPlainEnv(t *testing.T) {
|
||||
envFileName := "fixtures/plain.env"
|
||||
expectedValues := map[string]string{
|
||||
"OPTION_A": "1",
|
||||
"OPTION_B": "2",
|
||||
"OPTION_C": "3",
|
||||
"OPTION_D": "4",
|
||||
"OPTION_E": "5",
|
||||
}
|
||||
|
||||
envMap, err := Read(envFileName)
|
||||
if err != nil {
|
||||
t.Error("Error reading file")
|
||||
}
|
||||
|
||||
if len(envMap) != len(expectedValues) {
|
||||
t.Error("Didn't get the right size map back")
|
||||
}
|
||||
|
||||
for key, value := range expectedValues {
|
||||
if envMap[key] != value {
|
||||
t.Error("Read got one of the keys wrong")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestLoadDoesNotOverride(t *testing.T) {
|
||||
envFileName := "fixtures/plain.env"
|
||||
|
||||
// ensure NO overload
|
||||
presets := map[string]string{
|
||||
"OPTION_A": "do_not_override",
|
||||
}
|
||||
|
||||
expectedValues := map[string]string{
|
||||
"OPTION_A": "do_not_override",
|
||||
}
|
||||
loadEnvAndCompareValues(t, Load, envFileName, expectedValues, presets)
|
||||
}
|
||||
|
||||
func TestOveroadDoesOverride(t *testing.T) {
|
||||
envFileName := "fixtures/plain.env"
|
||||
|
||||
// ensure NO overload
|
||||
presets := map[string]string{
|
||||
"OPTION_A": "do_not_override",
|
||||
}
|
||||
|
||||
expectedValues := map[string]string{
|
||||
"OPTION_A": "1",
|
||||
}
|
||||
loadEnvAndCompareValues(t, Overload, envFileName, expectedValues, presets)
|
||||
}
|
||||
|
||||
func TestLoadPlainEnv(t *testing.T) {
|
||||
envFileName := "fixtures/plain.env"
|
||||
expectedValues := map[string]string{
|
||||
"OPTION_A": "1",
|
||||
"OPTION_B": "2",
|
||||
"OPTION_C": "3",
|
||||
"OPTION_D": "4",
|
||||
"OPTION_E": "5",
|
||||
}
|
||||
|
||||
loadEnvAndCompareValues(t, Load, envFileName, expectedValues, noopPresets)
|
||||
}
|
||||
|
||||
func TestLoadExportedEnv(t *testing.T) {
|
||||
envFileName := "fixtures/exported.env"
|
||||
expectedValues := map[string]string{
|
||||
"OPTION_A": "2",
|
||||
"OPTION_B": "\n",
|
||||
}
|
||||
|
||||
loadEnvAndCompareValues(t, Load, envFileName, expectedValues, noopPresets)
|
||||
}
|
||||
|
||||
func TestLoadEqualsEnv(t *testing.T) {
|
||||
envFileName := "fixtures/equals.env"
|
||||
expectedValues := map[string]string{
|
||||
"OPTION_A": "postgres://localhost:5432/database?sslmode=disable",
|
||||
}
|
||||
|
||||
loadEnvAndCompareValues(t, Load, envFileName, expectedValues, noopPresets)
|
||||
}
|
||||
|
||||
func TestLoadQuotedEnv(t *testing.T) {
|
||||
envFileName := "fixtures/quoted.env"
|
||||
expectedValues := map[string]string{
|
||||
"OPTION_A": "1",
|
||||
"OPTION_B": "2",
|
||||
"OPTION_C": "",
|
||||
"OPTION_D": "\n",
|
||||
"OPTION_E": "1",
|
||||
"OPTION_F": "2",
|
||||
"OPTION_G": "",
|
||||
"OPTION_H": "\n",
|
||||
}
|
||||
|
||||
loadEnvAndCompareValues(t, Load, envFileName, expectedValues, noopPresets)
|
||||
}
|
||||
|
||||
func TestActualEnvVarsAreLeftAlone(t *testing.T) {
|
||||
os.Clearenv()
|
||||
os.Setenv("OPTION_A", "actualenv")
|
||||
_ = Load("fixtures/plain.env")
|
||||
|
||||
if os.Getenv("OPTION_A") != "actualenv" {
|
||||
t.Error("An ENV var set earlier was overwritten")
|
||||
}
|
||||
}
|
||||
|
||||
func TestParsing(t *testing.T) {
|
||||
// unquoted values
|
||||
parseAndCompare(t, "FOO=bar", "FOO", "bar")
|
||||
|
||||
// parses values with spaces around equal sign
|
||||
parseAndCompare(t, "FOO =bar", "FOO", "bar")
|
||||
parseAndCompare(t, "FOO= bar", "FOO", "bar")
|
||||
|
||||
// parses double quoted values
|
||||
parseAndCompare(t, "FOO=\"bar\"", "FOO", "bar")
|
||||
|
||||
// parses single quoted values
|
||||
parseAndCompare(t, "FOO='bar'", "FOO", "bar")
|
||||
|
||||
// parses escaped double quotes
|
||||
parseAndCompare(t, "FOO=escaped\\\"bar\"", "FOO", "escaped\"bar")
|
||||
|
||||
// parses yaml style options
|
||||
parseAndCompare(t, "OPTION_A: 1", "OPTION_A", "1")
|
||||
|
||||
// parses export keyword
|
||||
parseAndCompare(t, "export OPTION_A=2", "OPTION_A", "2")
|
||||
parseAndCompare(t, "export OPTION_B='\\n'", "OPTION_B", "\n")
|
||||
|
||||
// it 'expands newlines in quoted strings' do
|
||||
// expect(env('FOO="bar\nbaz"')).to eql('FOO' => "bar\nbaz")
|
||||
parseAndCompare(t, "FOO=\"bar\\nbaz\"", "FOO", "bar\nbaz")
|
||||
|
||||
// it 'parses varibales with "." in the name' do
|
||||
// expect(env('FOO.BAR=foobar')).to eql('FOO.BAR' => 'foobar')
|
||||
parseAndCompare(t, "FOO.BAR=foobar", "FOO.BAR", "foobar")
|
||||
|
||||
// it 'parses varibales with several "=" in the value' do
|
||||
// expect(env('FOO=foobar=')).to eql('FOO' => 'foobar=')
|
||||
parseAndCompare(t, "FOO=foobar=", "FOO", "foobar=")
|
||||
|
||||
// it 'strips unquoted values' do
|
||||
// expect(env('foo=bar ')).to eql('foo' => 'bar') # not 'bar '
|
||||
parseAndCompare(t, "FOO=bar ", "FOO", "bar")
|
||||
|
||||
// it 'ignores inline comments' do
|
||||
// expect(env("foo=bar # this is foo")).to eql('foo' => 'bar')
|
||||
parseAndCompare(t, "FOO=bar # this is foo", "FOO", "bar")
|
||||
|
||||
// it 'allows # in quoted value' do
|
||||
// expect(env('foo="bar#baz" # comment')).to eql('foo' => 'bar#baz')
|
||||
parseAndCompare(t, "FOO=\"bar#baz\" # comment", "FOO", "bar#baz")
|
||||
parseAndCompare(t, "FOO='bar#baz' # comment", "FOO", "bar#baz")
|
||||
parseAndCompare(t, "FOO=\"bar#baz#bang\" # comment", "FOO", "bar#baz#bang")
|
||||
|
||||
// it 'parses # in quoted values' do
|
||||
// expect(env('foo="ba#r"')).to eql('foo' => 'ba#r')
|
||||
// expect(env("foo='ba#r'")).to eql('foo' => 'ba#r')
|
||||
parseAndCompare(t, "FOO=\"ba#r\"", "FOO", "ba#r")
|
||||
parseAndCompare(t, "FOO='ba#r'", "FOO", "ba#r")
|
||||
|
||||
// it 'throws an error if line format is incorrect' do
|
||||
// expect{env('lol$wut')}.to raise_error(Dotenv::FormatError)
|
||||
badlyFormattedLine := "lol$wut"
|
||||
_, _, err := parseLine(badlyFormattedLine)
|
||||
if err == nil {
|
||||
t.Errorf("Expected \"%v\" to return error, but it didn't", badlyFormattedLine)
|
||||
}
|
||||
}
|
||||
|
||||
func TestLinesToIgnore(t *testing.T) {
|
||||
// it 'ignores empty lines' do
|
||||
// expect(env("\n \t \nfoo=bar\n \nfizz=buzz")).to eql('foo' => 'bar', 'fizz' => 'buzz')
|
||||
if !isIgnoredLine("\n") {
|
||||
t.Error("Line with nothing but line break wasn't ignored")
|
||||
}
|
||||
|
||||
if !isIgnoredLine("\t\t ") {
|
||||
t.Error("Line full of whitespace wasn't ignored")
|
||||
}
|
||||
|
||||
// it 'ignores comment lines' do
|
||||
// expect(env("\n\n\n # HERE GOES FOO \nfoo=bar")).to eql('foo' => 'bar')
|
||||
if !isIgnoredLine("# comment") {
|
||||
t.Error("Comment wasn't ignored")
|
||||
}
|
||||
|
||||
if !isIgnoredLine("\t#comment") {
|
||||
t.Error("Indented comment wasn't ignored")
|
||||
}
|
||||
|
||||
// make sure we're not getting false positives
|
||||
if isIgnoredLine("export OPTION_B='\\n'") {
|
||||
t.Error("ignoring a perfectly valid line to parse")
|
||||
}
|
||||
}
|
||||
|
||||
func TestErrorReadDirectory(t *testing.T) {
|
||||
envFileName := "fixtures/"
|
||||
envMap, err := Read(envFileName)
|
||||
|
||||
if err == nil {
|
||||
t.Errorf("Expected error, got %v", envMap)
|
||||
}
|
||||
}
|
||||
|
||||
func TestErrorParsing(t *testing.T) {
|
||||
envFileName := "fixtures/invalid1.env"
|
||||
envMap, err := Read(envFileName)
|
||||
if err == nil {
|
||||
t.Errorf("Expected error, got %v", envMap)
|
||||
}
|
||||
}
|
||||
-1
@@ -1 +0,0 @@
|
||||
box: pjvds/golang
|
||||
Generated
-2
@@ -1,2 +0,0 @@
|
||||
*.coverprofile
|
||||
node_modules/
|
||||
-39
@@ -1,39 +0,0 @@
|
||||
language: go
|
||||
|
||||
sudo: false
|
||||
|
||||
cache:
|
||||
directories:
|
||||
- node_modules
|
||||
|
||||
go:
|
||||
- 1.2.x
|
||||
- 1.3.x
|
||||
- 1.4.2
|
||||
- 1.5.x
|
||||
- 1.6.x
|
||||
- 1.7.x
|
||||
- master
|
||||
|
||||
matrix:
|
||||
allow_failures:
|
||||
- go: master
|
||||
include:
|
||||
- go: 1.6.x
|
||||
os: osx
|
||||
- go: 1.7.x
|
||||
os: osx
|
||||
|
||||
before_script:
|
||||
- go get github.com/urfave/gfmrun/... || true
|
||||
- go get golang.org/x/tools/... || true
|
||||
- if [ ! -f node_modules/.bin/markdown-toc ] ; then
|
||||
npm install markdown-toc ;
|
||||
fi
|
||||
|
||||
script:
|
||||
- ./runtests gen
|
||||
- ./runtests vet
|
||||
- ./runtests test
|
||||
- ./runtests gfmrun
|
||||
- ./runtests toc
|
||||
-392
@@ -1,392 +0,0 @@
|
||||
# Change Log
|
||||
|
||||
**ATTN**: This project uses [semantic versioning](http://semver.org/).
|
||||
|
||||
## [Unreleased]
|
||||
|
||||
## [1.19.1] - 2016-11-21
|
||||
|
||||
### Fixed
|
||||
|
||||
- Fixes regression introduced in 1.19.0 where using an `ActionFunc` as
|
||||
the `Action` for a command would cause it to error rather than calling the
|
||||
function. Should not have a affected declarative cases using `func(c
|
||||
*cli.Context) err)`.
|
||||
- Shell completion now handles the case where the user specifies
|
||||
`--generate-bash-completion` immediately after a flag that takes an argument.
|
||||
Previously it call the application with `--generate-bash-completion` as the
|
||||
flag value.
|
||||
|
||||
## [1.19.0] - 2016-11-19
|
||||
### Added
|
||||
- `FlagsByName` was added to make it easy to sort flags (e.g. `sort.Sort(cli.FlagsByName(app.Flags))`)
|
||||
- A `Description` field was added to `App` for a more detailed description of
|
||||
the application (similar to the existing `Description` field on `Command`)
|
||||
- Flag type code generation via `go generate`
|
||||
- Write to stderr and exit 1 if action returns non-nil error
|
||||
- Added support for TOML to the `altsrc` loader
|
||||
- `SkipArgReorder` was added to allow users to skip the argument reordering.
|
||||
This is useful if you want to consider all "flags" after an argument as
|
||||
arguments rather than flags (the default behavior of the stdlib `flag`
|
||||
library). This is backported functionality from the [removal of the flag
|
||||
reordering](https://github.com/urfave/cli/pull/398) in the unreleased version
|
||||
2
|
||||
- For formatted errors (those implementing `ErrorFormatter`), the errors will
|
||||
be formatted during output. Compatible with `pkg/errors`.
|
||||
|
||||
### Changed
|
||||
- Raise minimum tested/supported Go version to 1.2+
|
||||
|
||||
### Fixed
|
||||
- Consider empty environment variables as set (previously environment variables
|
||||
with the equivalent of `""` would be skipped rather than their value used).
|
||||
- Return an error if the value in a given environment variable cannot be parsed
|
||||
as the flag type. Previously these errors were silently swallowed.
|
||||
- Print full error when an invalid flag is specified (which includes the invalid flag)
|
||||
- `App.Writer` defaults to `stdout` when `nil`
|
||||
- If no action is specified on a command or app, the help is now printed instead of `panic`ing
|
||||
- `App.Metadata` is initialized automatically now (previously was `nil` unless initialized)
|
||||
- Correctly show help message if `-h` is provided to a subcommand
|
||||
- `context.(Global)IsSet` now respects environment variables. Previously it
|
||||
would return `false` if a flag was specified in the environment rather than
|
||||
as an argument
|
||||
- Removed deprecation warnings to STDERR to avoid them leaking to the end-user
|
||||
- `altsrc`s import paths were updated to use `gopkg.in/urfave/cli.v1`. This
|
||||
fixes issues that occurred when `gopkg.in/urfave/cli.v1` was imported as well
|
||||
as `altsrc` where Go would complain that the types didn't match
|
||||
|
||||
## [1.18.1] - 2016-08-28
|
||||
### Fixed
|
||||
- Removed deprecation warnings to STDERR to avoid them leaking to the end-user (backported)
|
||||
|
||||
## [1.18.0] - 2016-06-27
|
||||
### Added
|
||||
- `./runtests` test runner with coverage tracking by default
|
||||
- testing on OS X
|
||||
- testing on Windows
|
||||
- `UintFlag`, `Uint64Flag`, and `Int64Flag` types and supporting code
|
||||
|
||||
### Changed
|
||||
- Use spaces for alignment in help/usage output instead of tabs, making the
|
||||
output alignment consistent regardless of tab width
|
||||
|
||||
### Fixed
|
||||
- Printing of command aliases in help text
|
||||
- Printing of visible flags for both struct and struct pointer flags
|
||||
- Display the `help` subcommand when using `CommandCategories`
|
||||
- No longer swallows `panic`s that occur within the `Action`s themselves when
|
||||
detecting the signature of the `Action` field
|
||||
|
||||
## [1.17.1] - 2016-08-28
|
||||
### Fixed
|
||||
- Removed deprecation warnings to STDERR to avoid them leaking to the end-user
|
||||
|
||||
## [1.17.0] - 2016-05-09
|
||||
### Added
|
||||
- Pluggable flag-level help text rendering via `cli.DefaultFlagStringFunc`
|
||||
- `context.GlobalBoolT` was added as an analogue to `context.GlobalBool`
|
||||
- Support for hiding commands by setting `Hidden: true` -- this will hide the
|
||||
commands in help output
|
||||
|
||||
### Changed
|
||||
- `Float64Flag`, `IntFlag`, and `DurationFlag` default values are no longer
|
||||
quoted in help text output.
|
||||
- All flag types now include `(default: {value})` strings following usage when a
|
||||
default value can be (reasonably) detected.
|
||||
- `IntSliceFlag` and `StringSliceFlag` usage strings are now more consistent
|
||||
with non-slice flag types
|
||||
- Apps now exit with a code of 3 if an unknown subcommand is specified
|
||||
(previously they printed "No help topic for...", but still exited 0. This
|
||||
makes it easier to script around apps built using `cli` since they can trust
|
||||
that a 0 exit code indicated a successful execution.
|
||||
- cleanups based on [Go Report Card
|
||||
feedback](https://goreportcard.com/report/github.com/urfave/cli)
|
||||
|
||||
## [1.16.1] - 2016-08-28
|
||||
### Fixed
|
||||
- Removed deprecation warnings to STDERR to avoid them leaking to the end-user
|
||||
|
||||
## [1.16.0] - 2016-05-02
|
||||
### Added
|
||||
- `Hidden` field on all flag struct types to omit from generated help text
|
||||
|
||||
### Changed
|
||||
- `BashCompletionFlag` (`--enable-bash-completion`) is now omitted from
|
||||
generated help text via the `Hidden` field
|
||||
|
||||
### Fixed
|
||||
- handling of error values in `HandleAction` and `HandleExitCoder`
|
||||
|
||||
## [1.15.0] - 2016-04-30
|
||||
### Added
|
||||
- This file!
|
||||
- Support for placeholders in flag usage strings
|
||||
- `App.Metadata` map for arbitrary data/state management
|
||||
- `Set` and `GlobalSet` methods on `*cli.Context` for altering values after
|
||||
parsing.
|
||||
- Support for nested lookup of dot-delimited keys in structures loaded from
|
||||
YAML.
|
||||
|
||||
### Changed
|
||||
- The `App.Action` and `Command.Action` now prefer a return signature of
|
||||
`func(*cli.Context) error`, as defined by `cli.ActionFunc`. If a non-nil
|
||||
`error` is returned, there may be two outcomes:
|
||||
- If the error fulfills `cli.ExitCoder`, then `os.Exit` will be called
|
||||
automatically
|
||||
- Else the error is bubbled up and returned from `App.Run`
|
||||
- Specifying an `Action` with the legacy return signature of
|
||||
`func(*cli.Context)` will produce a deprecation message to stderr
|
||||
- Specifying an `Action` that is not a `func` type will produce a non-zero exit
|
||||
from `App.Run`
|
||||
- Specifying an `Action` func that has an invalid (input) signature will
|
||||
produce a non-zero exit from `App.Run`
|
||||
|
||||
### Deprecated
|
||||
- <a name="deprecated-cli-app-runandexitonerror"></a>
|
||||
`cli.App.RunAndExitOnError`, which should now be done by returning an error
|
||||
that fulfills `cli.ExitCoder` to `cli.App.Run`.
|
||||
- <a name="deprecated-cli-app-action-signature"></a> the legacy signature for
|
||||
`cli.App.Action` of `func(*cli.Context)`, which should now have a return
|
||||
signature of `func(*cli.Context) error`, as defined by `cli.ActionFunc`.
|
||||
|
||||
### Fixed
|
||||
- Added missing `*cli.Context.GlobalFloat64` method
|
||||
|
||||
## [1.14.0] - 2016-04-03 (backfilled 2016-04-25)
|
||||
### Added
|
||||
- Codebeat badge
|
||||
- Support for categorization via `CategorizedHelp` and `Categories` on app.
|
||||
|
||||
### Changed
|
||||
- Use `filepath.Base` instead of `path.Base` in `Name` and `HelpName`.
|
||||
|
||||
### Fixed
|
||||
- Ensure version is not shown in help text when `HideVersion` set.
|
||||
|
||||
## [1.13.0] - 2016-03-06 (backfilled 2016-04-25)
|
||||
### Added
|
||||
- YAML file input support.
|
||||
- `NArg` method on context.
|
||||
|
||||
## [1.12.0] - 2016-02-17 (backfilled 2016-04-25)
|
||||
### Added
|
||||
- Custom usage error handling.
|
||||
- Custom text support in `USAGE` section of help output.
|
||||
- Improved help messages for empty strings.
|
||||
- AppVeyor CI configuration.
|
||||
|
||||
### Changed
|
||||
- Removed `panic` from default help printer func.
|
||||
- De-duping and optimizations.
|
||||
|
||||
### Fixed
|
||||
- Correctly handle `Before`/`After` at command level when no subcommands.
|
||||
- Case of literal `-` argument causing flag reordering.
|
||||
- Environment variable hints on Windows.
|
||||
- Docs updates.
|
||||
|
||||
## [1.11.1] - 2015-12-21 (backfilled 2016-04-25)
|
||||
### Changed
|
||||
- Use `path.Base` in `Name` and `HelpName`
|
||||
- Export `GetName` on flag types.
|
||||
|
||||
### Fixed
|
||||
- Flag parsing when skipping is enabled.
|
||||
- Test output cleanup.
|
||||
- Move completion check to account for empty input case.
|
||||
|
||||
## [1.11.0] - 2015-11-15 (backfilled 2016-04-25)
|
||||
### Added
|
||||
- Destination scan support for flags.
|
||||
- Testing against `tip` in Travis CI config.
|
||||
|
||||
### Changed
|
||||
- Go version in Travis CI config.
|
||||
|
||||
### Fixed
|
||||
- Removed redundant tests.
|
||||
- Use correct example naming in tests.
|
||||
|
||||
## [1.10.2] - 2015-10-29 (backfilled 2016-04-25)
|
||||
### Fixed
|
||||
- Remove unused var in bash completion.
|
||||
|
||||
## [1.10.1] - 2015-10-21 (backfilled 2016-04-25)
|
||||
### Added
|
||||
- Coverage and reference logos in README.
|
||||
|
||||
### Fixed
|
||||
- Use specified values in help and version parsing.
|
||||
- Only display app version and help message once.
|
||||
|
||||
## [1.10.0] - 2015-10-06 (backfilled 2016-04-25)
|
||||
### Added
|
||||
- More tests for existing functionality.
|
||||
- `ArgsUsage` at app and command level for help text flexibility.
|
||||
|
||||
### Fixed
|
||||
- Honor `HideHelp` and `HideVersion` in `App.Run`.
|
||||
- Remove juvenile word from README.
|
||||
|
||||
## [1.9.0] - 2015-09-08 (backfilled 2016-04-25)
|
||||
### Added
|
||||
- `FullName` on command with accompanying help output update.
|
||||
- Set default `$PROG` in bash completion.
|
||||
|
||||
### Changed
|
||||
- Docs formatting.
|
||||
|
||||
### Fixed
|
||||
- Removed self-referential imports in tests.
|
||||
|
||||
## [1.8.0] - 2015-06-30 (backfilled 2016-04-25)
|
||||
### Added
|
||||
- Support for `Copyright` at app level.
|
||||
- `Parent` func at context level to walk up context lineage.
|
||||
|
||||
### Fixed
|
||||
- Global flag processing at top level.
|
||||
|
||||
## [1.7.1] - 2015-06-11 (backfilled 2016-04-25)
|
||||
### Added
|
||||
- Aggregate errors from `Before`/`After` funcs.
|
||||
- Doc comments on flag structs.
|
||||
- Include non-global flags when checking version and help.
|
||||
- Travis CI config updates.
|
||||
|
||||
### Fixed
|
||||
- Ensure slice type flags have non-nil values.
|
||||
- Collect global flags from the full command hierarchy.
|
||||
- Docs prose.
|
||||
|
||||
## [1.7.0] - 2015-05-03 (backfilled 2016-04-25)
|
||||
### Changed
|
||||
- `HelpPrinter` signature includes output writer.
|
||||
|
||||
### Fixed
|
||||
- Specify go 1.1+ in docs.
|
||||
- Set `Writer` when running command as app.
|
||||
|
||||
## [1.6.0] - 2015-03-23 (backfilled 2016-04-25)
|
||||
### Added
|
||||
- Multiple author support.
|
||||
- `NumFlags` at context level.
|
||||
- `Aliases` at command level.
|
||||
|
||||
### Deprecated
|
||||
- `ShortName` at command level.
|
||||
|
||||
### Fixed
|
||||
- Subcommand help output.
|
||||
- Backward compatible support for deprecated `Author` and `Email` fields.
|
||||
- Docs regarding `Names`/`Aliases`.
|
||||
|
||||
## [1.5.0] - 2015-02-20 (backfilled 2016-04-25)
|
||||
### Added
|
||||
- `After` hook func support at app and command level.
|
||||
|
||||
### Fixed
|
||||
- Use parsed context when running command as subcommand.
|
||||
- Docs prose.
|
||||
|
||||
## [1.4.1] - 2015-01-09 (backfilled 2016-04-25)
|
||||
### Added
|
||||
- Support for hiding `-h / --help` flags, but not `help` subcommand.
|
||||
- Stop flag parsing after `--`.
|
||||
|
||||
### Fixed
|
||||
- Help text for generic flags to specify single value.
|
||||
- Use double quotes in output for defaults.
|
||||
- Use `ParseInt` instead of `ParseUint` for int environment var values.
|
||||
- Use `0` as base when parsing int environment var values.
|
||||
|
||||
## [1.4.0] - 2014-12-12 (backfilled 2016-04-25)
|
||||
### Added
|
||||
- Support for environment variable lookup "cascade".
|
||||
- Support for `Stdout` on app for output redirection.
|
||||
|
||||
### Fixed
|
||||
- Print command help instead of app help in `ShowCommandHelp`.
|
||||
|
||||
## [1.3.1] - 2014-11-13 (backfilled 2016-04-25)
|
||||
### Added
|
||||
- Docs and example code updates.
|
||||
|
||||
### Changed
|
||||
- Default `-v / --version` flag made optional.
|
||||
|
||||
## [1.3.0] - 2014-08-10 (backfilled 2016-04-25)
|
||||
### Added
|
||||
- `FlagNames` at context level.
|
||||
- Exposed `VersionPrinter` var for more control over version output.
|
||||
- Zsh completion hook.
|
||||
- `AUTHOR` section in default app help template.
|
||||
- Contribution guidelines.
|
||||
- `DurationFlag` type.
|
||||
|
||||
## [1.2.0] - 2014-08-02
|
||||
### Added
|
||||
- Support for environment variable defaults on flags plus tests.
|
||||
|
||||
## [1.1.0] - 2014-07-15
|
||||
### Added
|
||||
- Bash completion.
|
||||
- Optional hiding of built-in help command.
|
||||
- Optional skipping of flag parsing at command level.
|
||||
- `Author`, `Email`, and `Compiled` metadata on app.
|
||||
- `Before` hook func support at app and command level.
|
||||
- `CommandNotFound` func support at app level.
|
||||
- Command reference available on context.
|
||||
- `GenericFlag` type.
|
||||
- `Float64Flag` type.
|
||||
- `BoolTFlag` type.
|
||||
- `IsSet` flag helper on context.
|
||||
- More flag lookup funcs at context level.
|
||||
- More tests & docs.
|
||||
|
||||
### Changed
|
||||
- Help template updates to account for presence/absence of flags.
|
||||
- Separated subcommand help template.
|
||||
- Exposed `HelpPrinter` var for more control over help output.
|
||||
|
||||
## [1.0.0] - 2013-11-01
|
||||
### Added
|
||||
- `help` flag in default app flag set and each command flag set.
|
||||
- Custom handling of argument parsing errors.
|
||||
- Command lookup by name at app level.
|
||||
- `StringSliceFlag` type and supporting `StringSlice` type.
|
||||
- `IntSliceFlag` type and supporting `IntSlice` type.
|
||||
- Slice type flag lookups by name at context level.
|
||||
- Export of app and command help functions.
|
||||
- More tests & docs.
|
||||
|
||||
## 0.1.0 - 2013-07-22
|
||||
### Added
|
||||
- Initial implementation.
|
||||
|
||||
[Unreleased]: https://github.com/urfave/cli/compare/v1.18.0...HEAD
|
||||
[1.18.0]: https://github.com/urfave/cli/compare/v1.17.0...v1.18.0
|
||||
[1.17.0]: https://github.com/urfave/cli/compare/v1.16.0...v1.17.0
|
||||
[1.16.0]: https://github.com/urfave/cli/compare/v1.15.0...v1.16.0
|
||||
[1.15.0]: https://github.com/urfave/cli/compare/v1.14.0...v1.15.0
|
||||
[1.14.0]: https://github.com/urfave/cli/compare/v1.13.0...v1.14.0
|
||||
[1.13.0]: https://github.com/urfave/cli/compare/v1.12.0...v1.13.0
|
||||
[1.12.0]: https://github.com/urfave/cli/compare/v1.11.1...v1.12.0
|
||||
[1.11.1]: https://github.com/urfave/cli/compare/v1.11.0...v1.11.1
|
||||
[1.11.0]: https://github.com/urfave/cli/compare/v1.10.2...v1.11.0
|
||||
[1.10.2]: https://github.com/urfave/cli/compare/v1.10.1...v1.10.2
|
||||
[1.10.1]: https://github.com/urfave/cli/compare/v1.10.0...v1.10.1
|
||||
[1.10.0]: https://github.com/urfave/cli/compare/v1.9.0...v1.10.0
|
||||
[1.9.0]: https://github.com/urfave/cli/compare/v1.8.0...v1.9.0
|
||||
[1.8.0]: https://github.com/urfave/cli/compare/v1.7.1...v1.8.0
|
||||
[1.7.1]: https://github.com/urfave/cli/compare/v1.7.0...v1.7.1
|
||||
[1.7.0]: https://github.com/urfave/cli/compare/v1.6.0...v1.7.0
|
||||
[1.6.0]: https://github.com/urfave/cli/compare/v1.5.0...v1.6.0
|
||||
[1.5.0]: https://github.com/urfave/cli/compare/v1.4.1...v1.5.0
|
||||
[1.4.1]: https://github.com/urfave/cli/compare/v1.4.0...v1.4.1
|
||||
[1.4.0]: https://github.com/urfave/cli/compare/v1.3.1...v1.4.0
|
||||
[1.3.1]: https://github.com/urfave/cli/compare/v1.3.0...v1.3.1
|
||||
[1.3.0]: https://github.com/urfave/cli/compare/v1.2.0...v1.3.0
|
||||
[1.2.0]: https://github.com/urfave/cli/compare/v1.1.0...v1.2.0
|
||||
[1.1.0]: https://github.com/urfave/cli/compare/v1.0.0...v1.1.0
|
||||
[1.0.0]: https://github.com/urfave/cli/compare/v0.1.0...v1.0.0
|
||||
-21
@@ -1,21 +0,0 @@
|
||||
MIT License
|
||||
|
||||
Copyright (c) 2016 Jeremy Saenz & Contributors
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
||||
-1364
File diff suppressed because it is too large
Load Diff
-3
@@ -1,3 +0,0 @@
|
||||
package altsrc
|
||||
|
||||
//go:generate python ../generate-flag-types altsrc -i ../flag-types.json -o flag_generated.go
|
||||
-261
@@ -1,261 +0,0 @@
|
||||
package altsrc
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strconv"
|
||||
"strings"
|
||||
"syscall"
|
||||
|
||||
"gopkg.in/urfave/cli.v1"
|
||||
)
|
||||
|
||||
// FlagInputSourceExtension is an extension interface of cli.Flag that
|
||||
// allows a value to be set on the existing parsed flags.
|
||||
type FlagInputSourceExtension interface {
|
||||
cli.Flag
|
||||
ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error
|
||||
}
|
||||
|
||||
// ApplyInputSourceValues iterates over all provided flags and
|
||||
// executes ApplyInputSourceValue on flags implementing the
|
||||
// FlagInputSourceExtension interface to initialize these flags
|
||||
// to an alternate input source.
|
||||
func ApplyInputSourceValues(context *cli.Context, inputSourceContext InputSourceContext, flags []cli.Flag) error {
|
||||
for _, f := range flags {
|
||||
inputSourceExtendedFlag, isType := f.(FlagInputSourceExtension)
|
||||
if isType {
|
||||
err := inputSourceExtendedFlag.ApplyInputSourceValue(context, inputSourceContext)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// InitInputSource is used to to setup an InputSourceContext on a cli.Command Before method. It will create a new
|
||||
// input source based on the func provided. If there is no error it will then apply the new input source to any flags
|
||||
// that are supported by the input source
|
||||
func InitInputSource(flags []cli.Flag, createInputSource func() (InputSourceContext, error)) cli.BeforeFunc {
|
||||
return func(context *cli.Context) error {
|
||||
inputSource, err := createInputSource()
|
||||
if err != nil {
|
||||
return fmt.Errorf("Unable to create input source: inner error: \n'%v'", err.Error())
|
||||
}
|
||||
|
||||
return ApplyInputSourceValues(context, inputSource, flags)
|
||||
}
|
||||
}
|
||||
|
||||
// InitInputSourceWithContext is used to to setup an InputSourceContext on a cli.Command Before method. It will create a new
|
||||
// input source based on the func provided with potentially using existing cli.Context values to initialize itself. If there is
|
||||
// no error it will then apply the new input source to any flags that are supported by the input source
|
||||
func InitInputSourceWithContext(flags []cli.Flag, createInputSource func(context *cli.Context) (InputSourceContext, error)) cli.BeforeFunc {
|
||||
return func(context *cli.Context) error {
|
||||
inputSource, err := createInputSource(context)
|
||||
if err != nil {
|
||||
return fmt.Errorf("Unable to create input source with context: inner error: \n'%v'", err.Error())
|
||||
}
|
||||
|
||||
return ApplyInputSourceValues(context, inputSource, flags)
|
||||
}
|
||||
}
|
||||
|
||||
// ApplyInputSourceValue applies a generic value to the flagSet if required
|
||||
func (f *GenericFlag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
|
||||
if f.set != nil {
|
||||
if !context.IsSet(f.Name) && !isEnvVarSet(f.EnvVar) {
|
||||
value, err := isc.Generic(f.GenericFlag.Name)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if value != nil {
|
||||
eachName(f.Name, func(name string) {
|
||||
f.set.Set(f.Name, value.String())
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// ApplyInputSourceValue applies a StringSlice value to the flagSet if required
|
||||
func (f *StringSliceFlag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
|
||||
if f.set != nil {
|
||||
if !context.IsSet(f.Name) && !isEnvVarSet(f.EnvVar) {
|
||||
value, err := isc.StringSlice(f.StringSliceFlag.Name)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if value != nil {
|
||||
var sliceValue cli.StringSlice = value
|
||||
eachName(f.Name, func(name string) {
|
||||
underlyingFlag := f.set.Lookup(f.Name)
|
||||
if underlyingFlag != nil {
|
||||
underlyingFlag.Value = &sliceValue
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// ApplyInputSourceValue applies a IntSlice value if required
|
||||
func (f *IntSliceFlag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
|
||||
if f.set != nil {
|
||||
if !context.IsSet(f.Name) && !isEnvVarSet(f.EnvVar) {
|
||||
value, err := isc.IntSlice(f.IntSliceFlag.Name)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if value != nil {
|
||||
var sliceValue cli.IntSlice = value
|
||||
eachName(f.Name, func(name string) {
|
||||
underlyingFlag := f.set.Lookup(f.Name)
|
||||
if underlyingFlag != nil {
|
||||
underlyingFlag.Value = &sliceValue
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// ApplyInputSourceValue applies a Bool value to the flagSet if required
|
||||
func (f *BoolFlag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
|
||||
if f.set != nil {
|
||||
if !context.IsSet(f.Name) && !isEnvVarSet(f.EnvVar) {
|
||||
value, err := isc.Bool(f.BoolFlag.Name)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if value {
|
||||
eachName(f.Name, func(name string) {
|
||||
f.set.Set(f.Name, strconv.FormatBool(value))
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// ApplyInputSourceValue applies a BoolT value to the flagSet if required
|
||||
func (f *BoolTFlag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
|
||||
if f.set != nil {
|
||||
if !context.IsSet(f.Name) && !isEnvVarSet(f.EnvVar) {
|
||||
value, err := isc.BoolT(f.BoolTFlag.Name)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if !value {
|
||||
eachName(f.Name, func(name string) {
|
||||
f.set.Set(f.Name, strconv.FormatBool(value))
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// ApplyInputSourceValue applies a String value to the flagSet if required
|
||||
func (f *StringFlag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
|
||||
if f.set != nil {
|
||||
if !(context.IsSet(f.Name) || isEnvVarSet(f.EnvVar)) {
|
||||
value, err := isc.String(f.StringFlag.Name)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if value != "" {
|
||||
eachName(f.Name, func(name string) {
|
||||
f.set.Set(f.Name, value)
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// ApplyInputSourceValue applies a int value to the flagSet if required
|
||||
func (f *IntFlag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
|
||||
if f.set != nil {
|
||||
if !(context.IsSet(f.Name) || isEnvVarSet(f.EnvVar)) {
|
||||
value, err := isc.Int(f.IntFlag.Name)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if value > 0 {
|
||||
eachName(f.Name, func(name string) {
|
||||
f.set.Set(f.Name, strconv.FormatInt(int64(value), 10))
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// ApplyInputSourceValue applies a Duration value to the flagSet if required
|
||||
func (f *DurationFlag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
|
||||
if f.set != nil {
|
||||
if !(context.IsSet(f.Name) || isEnvVarSet(f.EnvVar)) {
|
||||
value, err := isc.Duration(f.DurationFlag.Name)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if value > 0 {
|
||||
eachName(f.Name, func(name string) {
|
||||
f.set.Set(f.Name, value.String())
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// ApplyInputSourceValue applies a Float64 value to the flagSet if required
|
||||
func (f *Float64Flag) ApplyInputSourceValue(context *cli.Context, isc InputSourceContext) error {
|
||||
if f.set != nil {
|
||||
if !(context.IsSet(f.Name) || isEnvVarSet(f.EnvVar)) {
|
||||
value, err := isc.Float64(f.Float64Flag.Name)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if value > 0 {
|
||||
floatStr := float64ToString(value)
|
||||
eachName(f.Name, func(name string) {
|
||||
f.set.Set(f.Name, floatStr)
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func isEnvVarSet(envVars string) bool {
|
||||
for _, envVar := range strings.Split(envVars, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if _, ok := syscall.Getenv(envVar); ok {
|
||||
// TODO: Can't use this for bools as
|
||||
// set means that it was true or false based on
|
||||
// Bool flag type, should work for other types
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
func float64ToString(f float64) string {
|
||||
return fmt.Sprintf("%v", f)
|
||||
}
|
||||
|
||||
func eachName(longName string, fn func(string)) {
|
||||
parts := strings.Split(longName, ",")
|
||||
for _, name := range parts {
|
||||
name = strings.Trim(name, " ")
|
||||
fn(name)
|
||||
}
|
||||
}
|
||||
-347
@@ -1,347 +0,0 @@
|
||||
package altsrc
|
||||
|
||||
import (
|
||||
"flag"
|
||||
|
||||
"gopkg.in/urfave/cli.v1"
|
||||
)
|
||||
|
||||
// WARNING: This file is generated!
|
||||
|
||||
// BoolFlag is the flag type that wraps cli.BoolFlag to allow
|
||||
// for other values to be specified
|
||||
type BoolFlag struct {
|
||||
cli.BoolFlag
|
||||
set *flag.FlagSet
|
||||
}
|
||||
|
||||
// NewBoolFlag creates a new BoolFlag
|
||||
func NewBoolFlag(fl cli.BoolFlag) *BoolFlag {
|
||||
return &BoolFlag{BoolFlag: fl, set: nil}
|
||||
}
|
||||
|
||||
// Apply saves the flagSet for later usage calls, then calls the
|
||||
// wrapped BoolFlag.Apply
|
||||
func (f *BoolFlag) Apply(set *flag.FlagSet) {
|
||||
f.set = set
|
||||
f.BoolFlag.Apply(set)
|
||||
}
|
||||
|
||||
// ApplyWithError saves the flagSet for later usage calls, then calls the
|
||||
// wrapped BoolFlag.ApplyWithError
|
||||
func (f *BoolFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
f.set = set
|
||||
return f.BoolFlag.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// BoolTFlag is the flag type that wraps cli.BoolTFlag to allow
|
||||
// for other values to be specified
|
||||
type BoolTFlag struct {
|
||||
cli.BoolTFlag
|
||||
set *flag.FlagSet
|
||||
}
|
||||
|
||||
// NewBoolTFlag creates a new BoolTFlag
|
||||
func NewBoolTFlag(fl cli.BoolTFlag) *BoolTFlag {
|
||||
return &BoolTFlag{BoolTFlag: fl, set: nil}
|
||||
}
|
||||
|
||||
// Apply saves the flagSet for later usage calls, then calls the
|
||||
// wrapped BoolTFlag.Apply
|
||||
func (f *BoolTFlag) Apply(set *flag.FlagSet) {
|
||||
f.set = set
|
||||
f.BoolTFlag.Apply(set)
|
||||
}
|
||||
|
||||
// ApplyWithError saves the flagSet for later usage calls, then calls the
|
||||
// wrapped BoolTFlag.ApplyWithError
|
||||
func (f *BoolTFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
f.set = set
|
||||
return f.BoolTFlag.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// DurationFlag is the flag type that wraps cli.DurationFlag to allow
|
||||
// for other values to be specified
|
||||
type DurationFlag struct {
|
||||
cli.DurationFlag
|
||||
set *flag.FlagSet
|
||||
}
|
||||
|
||||
// NewDurationFlag creates a new DurationFlag
|
||||
func NewDurationFlag(fl cli.DurationFlag) *DurationFlag {
|
||||
return &DurationFlag{DurationFlag: fl, set: nil}
|
||||
}
|
||||
|
||||
// Apply saves the flagSet for later usage calls, then calls the
|
||||
// wrapped DurationFlag.Apply
|
||||
func (f *DurationFlag) Apply(set *flag.FlagSet) {
|
||||
f.set = set
|
||||
f.DurationFlag.Apply(set)
|
||||
}
|
||||
|
||||
// ApplyWithError saves the flagSet for later usage calls, then calls the
|
||||
// wrapped DurationFlag.ApplyWithError
|
||||
func (f *DurationFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
f.set = set
|
||||
return f.DurationFlag.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// Float64Flag is the flag type that wraps cli.Float64Flag to allow
|
||||
// for other values to be specified
|
||||
type Float64Flag struct {
|
||||
cli.Float64Flag
|
||||
set *flag.FlagSet
|
||||
}
|
||||
|
||||
// NewFloat64Flag creates a new Float64Flag
|
||||
func NewFloat64Flag(fl cli.Float64Flag) *Float64Flag {
|
||||
return &Float64Flag{Float64Flag: fl, set: nil}
|
||||
}
|
||||
|
||||
// Apply saves the flagSet for later usage calls, then calls the
|
||||
// wrapped Float64Flag.Apply
|
||||
func (f *Float64Flag) Apply(set *flag.FlagSet) {
|
||||
f.set = set
|
||||
f.Float64Flag.Apply(set)
|
||||
}
|
||||
|
||||
// ApplyWithError saves the flagSet for later usage calls, then calls the
|
||||
// wrapped Float64Flag.ApplyWithError
|
||||
func (f *Float64Flag) ApplyWithError(set *flag.FlagSet) error {
|
||||
f.set = set
|
||||
return f.Float64Flag.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// GenericFlag is the flag type that wraps cli.GenericFlag to allow
|
||||
// for other values to be specified
|
||||
type GenericFlag struct {
|
||||
cli.GenericFlag
|
||||
set *flag.FlagSet
|
||||
}
|
||||
|
||||
// NewGenericFlag creates a new GenericFlag
|
||||
func NewGenericFlag(fl cli.GenericFlag) *GenericFlag {
|
||||
return &GenericFlag{GenericFlag: fl, set: nil}
|
||||
}
|
||||
|
||||
// Apply saves the flagSet for later usage calls, then calls the
|
||||
// wrapped GenericFlag.Apply
|
||||
func (f *GenericFlag) Apply(set *flag.FlagSet) {
|
||||
f.set = set
|
||||
f.GenericFlag.Apply(set)
|
||||
}
|
||||
|
||||
// ApplyWithError saves the flagSet for later usage calls, then calls the
|
||||
// wrapped GenericFlag.ApplyWithError
|
||||
func (f *GenericFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
f.set = set
|
||||
return f.GenericFlag.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// Int64Flag is the flag type that wraps cli.Int64Flag to allow
|
||||
// for other values to be specified
|
||||
type Int64Flag struct {
|
||||
cli.Int64Flag
|
||||
set *flag.FlagSet
|
||||
}
|
||||
|
||||
// NewInt64Flag creates a new Int64Flag
|
||||
func NewInt64Flag(fl cli.Int64Flag) *Int64Flag {
|
||||
return &Int64Flag{Int64Flag: fl, set: nil}
|
||||
}
|
||||
|
||||
// Apply saves the flagSet for later usage calls, then calls the
|
||||
// wrapped Int64Flag.Apply
|
||||
func (f *Int64Flag) Apply(set *flag.FlagSet) {
|
||||
f.set = set
|
||||
f.Int64Flag.Apply(set)
|
||||
}
|
||||
|
||||
// ApplyWithError saves the flagSet for later usage calls, then calls the
|
||||
// wrapped Int64Flag.ApplyWithError
|
||||
func (f *Int64Flag) ApplyWithError(set *flag.FlagSet) error {
|
||||
f.set = set
|
||||
return f.Int64Flag.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// IntFlag is the flag type that wraps cli.IntFlag to allow
|
||||
// for other values to be specified
|
||||
type IntFlag struct {
|
||||
cli.IntFlag
|
||||
set *flag.FlagSet
|
||||
}
|
||||
|
||||
// NewIntFlag creates a new IntFlag
|
||||
func NewIntFlag(fl cli.IntFlag) *IntFlag {
|
||||
return &IntFlag{IntFlag: fl, set: nil}
|
||||
}
|
||||
|
||||
// Apply saves the flagSet for later usage calls, then calls the
|
||||
// wrapped IntFlag.Apply
|
||||
func (f *IntFlag) Apply(set *flag.FlagSet) {
|
||||
f.set = set
|
||||
f.IntFlag.Apply(set)
|
||||
}
|
||||
|
||||
// ApplyWithError saves the flagSet for later usage calls, then calls the
|
||||
// wrapped IntFlag.ApplyWithError
|
||||
func (f *IntFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
f.set = set
|
||||
return f.IntFlag.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// IntSliceFlag is the flag type that wraps cli.IntSliceFlag to allow
|
||||
// for other values to be specified
|
||||
type IntSliceFlag struct {
|
||||
cli.IntSliceFlag
|
||||
set *flag.FlagSet
|
||||
}
|
||||
|
||||
// NewIntSliceFlag creates a new IntSliceFlag
|
||||
func NewIntSliceFlag(fl cli.IntSliceFlag) *IntSliceFlag {
|
||||
return &IntSliceFlag{IntSliceFlag: fl, set: nil}
|
||||
}
|
||||
|
||||
// Apply saves the flagSet for later usage calls, then calls the
|
||||
// wrapped IntSliceFlag.Apply
|
||||
func (f *IntSliceFlag) Apply(set *flag.FlagSet) {
|
||||
f.set = set
|
||||
f.IntSliceFlag.Apply(set)
|
||||
}
|
||||
|
||||
// ApplyWithError saves the flagSet for later usage calls, then calls the
|
||||
// wrapped IntSliceFlag.ApplyWithError
|
||||
func (f *IntSliceFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
f.set = set
|
||||
return f.IntSliceFlag.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// Int64SliceFlag is the flag type that wraps cli.Int64SliceFlag to allow
|
||||
// for other values to be specified
|
||||
type Int64SliceFlag struct {
|
||||
cli.Int64SliceFlag
|
||||
set *flag.FlagSet
|
||||
}
|
||||
|
||||
// NewInt64SliceFlag creates a new Int64SliceFlag
|
||||
func NewInt64SliceFlag(fl cli.Int64SliceFlag) *Int64SliceFlag {
|
||||
return &Int64SliceFlag{Int64SliceFlag: fl, set: nil}
|
||||
}
|
||||
|
||||
// Apply saves the flagSet for later usage calls, then calls the
|
||||
// wrapped Int64SliceFlag.Apply
|
||||
func (f *Int64SliceFlag) Apply(set *flag.FlagSet) {
|
||||
f.set = set
|
||||
f.Int64SliceFlag.Apply(set)
|
||||
}
|
||||
|
||||
// ApplyWithError saves the flagSet for later usage calls, then calls the
|
||||
// wrapped Int64SliceFlag.ApplyWithError
|
||||
func (f *Int64SliceFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
f.set = set
|
||||
return f.Int64SliceFlag.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// StringFlag is the flag type that wraps cli.StringFlag to allow
|
||||
// for other values to be specified
|
||||
type StringFlag struct {
|
||||
cli.StringFlag
|
||||
set *flag.FlagSet
|
||||
}
|
||||
|
||||
// NewStringFlag creates a new StringFlag
|
||||
func NewStringFlag(fl cli.StringFlag) *StringFlag {
|
||||
return &StringFlag{StringFlag: fl, set: nil}
|
||||
}
|
||||
|
||||
// Apply saves the flagSet for later usage calls, then calls the
|
||||
// wrapped StringFlag.Apply
|
||||
func (f *StringFlag) Apply(set *flag.FlagSet) {
|
||||
f.set = set
|
||||
f.StringFlag.Apply(set)
|
||||
}
|
||||
|
||||
// ApplyWithError saves the flagSet for later usage calls, then calls the
|
||||
// wrapped StringFlag.ApplyWithError
|
||||
func (f *StringFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
f.set = set
|
||||
return f.StringFlag.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// StringSliceFlag is the flag type that wraps cli.StringSliceFlag to allow
|
||||
// for other values to be specified
|
||||
type StringSliceFlag struct {
|
||||
cli.StringSliceFlag
|
||||
set *flag.FlagSet
|
||||
}
|
||||
|
||||
// NewStringSliceFlag creates a new StringSliceFlag
|
||||
func NewStringSliceFlag(fl cli.StringSliceFlag) *StringSliceFlag {
|
||||
return &StringSliceFlag{StringSliceFlag: fl, set: nil}
|
||||
}
|
||||
|
||||
// Apply saves the flagSet for later usage calls, then calls the
|
||||
// wrapped StringSliceFlag.Apply
|
||||
func (f *StringSliceFlag) Apply(set *flag.FlagSet) {
|
||||
f.set = set
|
||||
f.StringSliceFlag.Apply(set)
|
||||
}
|
||||
|
||||
// ApplyWithError saves the flagSet for later usage calls, then calls the
|
||||
// wrapped StringSliceFlag.ApplyWithError
|
||||
func (f *StringSliceFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
f.set = set
|
||||
return f.StringSliceFlag.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// Uint64Flag is the flag type that wraps cli.Uint64Flag to allow
|
||||
// for other values to be specified
|
||||
type Uint64Flag struct {
|
||||
cli.Uint64Flag
|
||||
set *flag.FlagSet
|
||||
}
|
||||
|
||||
// NewUint64Flag creates a new Uint64Flag
|
||||
func NewUint64Flag(fl cli.Uint64Flag) *Uint64Flag {
|
||||
return &Uint64Flag{Uint64Flag: fl, set: nil}
|
||||
}
|
||||
|
||||
// Apply saves the flagSet for later usage calls, then calls the
|
||||
// wrapped Uint64Flag.Apply
|
||||
func (f *Uint64Flag) Apply(set *flag.FlagSet) {
|
||||
f.set = set
|
||||
f.Uint64Flag.Apply(set)
|
||||
}
|
||||
|
||||
// ApplyWithError saves the flagSet for later usage calls, then calls the
|
||||
// wrapped Uint64Flag.ApplyWithError
|
||||
func (f *Uint64Flag) ApplyWithError(set *flag.FlagSet) error {
|
||||
f.set = set
|
||||
return f.Uint64Flag.ApplyWithError(set)
|
||||
}
|
||||
|
||||
// UintFlag is the flag type that wraps cli.UintFlag to allow
|
||||
// for other values to be specified
|
||||
type UintFlag struct {
|
||||
cli.UintFlag
|
||||
set *flag.FlagSet
|
||||
}
|
||||
|
||||
// NewUintFlag creates a new UintFlag
|
||||
func NewUintFlag(fl cli.UintFlag) *UintFlag {
|
||||
return &UintFlag{UintFlag: fl, set: nil}
|
||||
}
|
||||
|
||||
// Apply saves the flagSet for later usage calls, then calls the
|
||||
// wrapped UintFlag.Apply
|
||||
func (f *UintFlag) Apply(set *flag.FlagSet) {
|
||||
f.set = set
|
||||
f.UintFlag.Apply(set)
|
||||
}
|
||||
|
||||
// ApplyWithError saves the flagSet for later usage calls, then calls the
|
||||
// wrapped UintFlag.ApplyWithError
|
||||
func (f *UintFlag) ApplyWithError(set *flag.FlagSet) error {
|
||||
f.set = set
|
||||
return f.UintFlag.ApplyWithError(set)
|
||||
}
|
||||
-336
@@ -1,336 +0,0 @@
|
||||
package altsrc
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"fmt"
|
||||
"os"
|
||||
"strings"
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
"gopkg.in/urfave/cli.v1"
|
||||
)
|
||||
|
||||
type testApplyInputSource struct {
|
||||
Flag FlagInputSourceExtension
|
||||
FlagName string
|
||||
FlagSetName string
|
||||
Expected string
|
||||
ContextValueString string
|
||||
ContextValue flag.Value
|
||||
EnvVarValue string
|
||||
EnvVarName string
|
||||
MapValue interface{}
|
||||
}
|
||||
|
||||
func TestGenericApplyInputSourceValue(t *testing.T) {
|
||||
v := &Parser{"abc", "def"}
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewGenericFlag(cli.GenericFlag{Name: "test", Value: &Parser{}}),
|
||||
FlagName: "test",
|
||||
MapValue: v,
|
||||
})
|
||||
expect(t, v, c.Generic("test"))
|
||||
}
|
||||
|
||||
func TestGenericApplyInputSourceMethodContextSet(t *testing.T) {
|
||||
p := &Parser{"abc", "def"}
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewGenericFlag(cli.GenericFlag{Name: "test", Value: &Parser{}}),
|
||||
FlagName: "test",
|
||||
MapValue: &Parser{"efg", "hig"},
|
||||
ContextValueString: p.String(),
|
||||
})
|
||||
expect(t, p, c.Generic("test"))
|
||||
}
|
||||
|
||||
func TestGenericApplyInputSourceMethodEnvVarSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewGenericFlag(cli.GenericFlag{Name: "test", Value: &Parser{}, EnvVar: "TEST"}),
|
||||
FlagName: "test",
|
||||
MapValue: &Parser{"efg", "hij"},
|
||||
EnvVarName: "TEST",
|
||||
EnvVarValue: "abc,def",
|
||||
})
|
||||
expect(t, &Parser{"abc", "def"}, c.Generic("test"))
|
||||
}
|
||||
|
||||
func TestStringSliceApplyInputSourceValue(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewStringSliceFlag(cli.StringSliceFlag{Name: "test"}),
|
||||
FlagName: "test",
|
||||
MapValue: []string{"hello", "world"},
|
||||
})
|
||||
expect(t, c.StringSlice("test"), []string{"hello", "world"})
|
||||
}
|
||||
|
||||
func TestStringSliceApplyInputSourceMethodContextSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewStringSliceFlag(cli.StringSliceFlag{Name: "test"}),
|
||||
FlagName: "test",
|
||||
MapValue: []string{"hello", "world"},
|
||||
ContextValueString: "ohno",
|
||||
})
|
||||
expect(t, c.StringSlice("test"), []string{"ohno"})
|
||||
}
|
||||
|
||||
func TestStringSliceApplyInputSourceMethodEnvVarSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewStringSliceFlag(cli.StringSliceFlag{Name: "test", EnvVar: "TEST"}),
|
||||
FlagName: "test",
|
||||
MapValue: []string{"hello", "world"},
|
||||
EnvVarName: "TEST",
|
||||
EnvVarValue: "oh,no",
|
||||
})
|
||||
expect(t, c.StringSlice("test"), []string{"oh", "no"})
|
||||
}
|
||||
|
||||
func TestIntSliceApplyInputSourceValue(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewIntSliceFlag(cli.IntSliceFlag{Name: "test"}),
|
||||
FlagName: "test",
|
||||
MapValue: []int{1, 2},
|
||||
})
|
||||
expect(t, c.IntSlice("test"), []int{1, 2})
|
||||
}
|
||||
|
||||
func TestIntSliceApplyInputSourceMethodContextSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewIntSliceFlag(cli.IntSliceFlag{Name: "test"}),
|
||||
FlagName: "test",
|
||||
MapValue: []int{1, 2},
|
||||
ContextValueString: "3",
|
||||
})
|
||||
expect(t, c.IntSlice("test"), []int{3})
|
||||
}
|
||||
|
||||
func TestIntSliceApplyInputSourceMethodEnvVarSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewIntSliceFlag(cli.IntSliceFlag{Name: "test", EnvVar: "TEST"}),
|
||||
FlagName: "test",
|
||||
MapValue: []int{1, 2},
|
||||
EnvVarName: "TEST",
|
||||
EnvVarValue: "3,4",
|
||||
})
|
||||
expect(t, c.IntSlice("test"), []int{3, 4})
|
||||
}
|
||||
|
||||
func TestBoolApplyInputSourceMethodSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewBoolFlag(cli.BoolFlag{Name: "test"}),
|
||||
FlagName: "test",
|
||||
MapValue: true,
|
||||
})
|
||||
expect(t, true, c.Bool("test"))
|
||||
}
|
||||
|
||||
func TestBoolApplyInputSourceMethodContextSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewBoolFlag(cli.BoolFlag{Name: "test"}),
|
||||
FlagName: "test",
|
||||
MapValue: false,
|
||||
ContextValueString: "true",
|
||||
})
|
||||
expect(t, true, c.Bool("test"))
|
||||
}
|
||||
|
||||
func TestBoolApplyInputSourceMethodEnvVarSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewBoolFlag(cli.BoolFlag{Name: "test", EnvVar: "TEST"}),
|
||||
FlagName: "test",
|
||||
MapValue: false,
|
||||
EnvVarName: "TEST",
|
||||
EnvVarValue: "true",
|
||||
})
|
||||
expect(t, true, c.Bool("test"))
|
||||
}
|
||||
|
||||
func TestBoolTApplyInputSourceMethodSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewBoolTFlag(cli.BoolTFlag{Name: "test"}),
|
||||
FlagName: "test",
|
||||
MapValue: false,
|
||||
})
|
||||
expect(t, false, c.BoolT("test"))
|
||||
}
|
||||
|
||||
func TestBoolTApplyInputSourceMethodContextSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewBoolTFlag(cli.BoolTFlag{Name: "test"}),
|
||||
FlagName: "test",
|
||||
MapValue: true,
|
||||
ContextValueString: "false",
|
||||
})
|
||||
expect(t, false, c.BoolT("test"))
|
||||
}
|
||||
|
||||
func TestBoolTApplyInputSourceMethodEnvVarSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewBoolTFlag(cli.BoolTFlag{Name: "test", EnvVar: "TEST"}),
|
||||
FlagName: "test",
|
||||
MapValue: true,
|
||||
EnvVarName: "TEST",
|
||||
EnvVarValue: "false",
|
||||
})
|
||||
expect(t, false, c.BoolT("test"))
|
||||
}
|
||||
|
||||
func TestStringApplyInputSourceMethodSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewStringFlag(cli.StringFlag{Name: "test"}),
|
||||
FlagName: "test",
|
||||
MapValue: "hello",
|
||||
})
|
||||
expect(t, "hello", c.String("test"))
|
||||
}
|
||||
|
||||
func TestStringApplyInputSourceMethodContextSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewStringFlag(cli.StringFlag{Name: "test"}),
|
||||
FlagName: "test",
|
||||
MapValue: "hello",
|
||||
ContextValueString: "goodbye",
|
||||
})
|
||||
expect(t, "goodbye", c.String("test"))
|
||||
}
|
||||
|
||||
func TestStringApplyInputSourceMethodEnvVarSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewStringFlag(cli.StringFlag{Name: "test", EnvVar: "TEST"}),
|
||||
FlagName: "test",
|
||||
MapValue: "hello",
|
||||
EnvVarName: "TEST",
|
||||
EnvVarValue: "goodbye",
|
||||
})
|
||||
expect(t, "goodbye", c.String("test"))
|
||||
}
|
||||
|
||||
func TestIntApplyInputSourceMethodSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewIntFlag(cli.IntFlag{Name: "test"}),
|
||||
FlagName: "test",
|
||||
MapValue: 15,
|
||||
})
|
||||
expect(t, 15, c.Int("test"))
|
||||
}
|
||||
|
||||
func TestIntApplyInputSourceMethodContextSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewIntFlag(cli.IntFlag{Name: "test"}),
|
||||
FlagName: "test",
|
||||
MapValue: 15,
|
||||
ContextValueString: "7",
|
||||
})
|
||||
expect(t, 7, c.Int("test"))
|
||||
}
|
||||
|
||||
func TestIntApplyInputSourceMethodEnvVarSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewIntFlag(cli.IntFlag{Name: "test", EnvVar: "TEST"}),
|
||||
FlagName: "test",
|
||||
MapValue: 15,
|
||||
EnvVarName: "TEST",
|
||||
EnvVarValue: "12",
|
||||
})
|
||||
expect(t, 12, c.Int("test"))
|
||||
}
|
||||
|
||||
func TestDurationApplyInputSourceMethodSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewDurationFlag(cli.DurationFlag{Name: "test"}),
|
||||
FlagName: "test",
|
||||
MapValue: time.Duration(30 * time.Second),
|
||||
})
|
||||
expect(t, time.Duration(30*time.Second), c.Duration("test"))
|
||||
}
|
||||
|
||||
func TestDurationApplyInputSourceMethodContextSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewDurationFlag(cli.DurationFlag{Name: "test"}),
|
||||
FlagName: "test",
|
||||
MapValue: time.Duration(30 * time.Second),
|
||||
ContextValueString: time.Duration(15 * time.Second).String(),
|
||||
})
|
||||
expect(t, time.Duration(15*time.Second), c.Duration("test"))
|
||||
}
|
||||
|
||||
func TestDurationApplyInputSourceMethodEnvVarSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewDurationFlag(cli.DurationFlag{Name: "test", EnvVar: "TEST"}),
|
||||
FlagName: "test",
|
||||
MapValue: time.Duration(30 * time.Second),
|
||||
EnvVarName: "TEST",
|
||||
EnvVarValue: time.Duration(15 * time.Second).String(),
|
||||
})
|
||||
expect(t, time.Duration(15*time.Second), c.Duration("test"))
|
||||
}
|
||||
|
||||
func TestFloat64ApplyInputSourceMethodSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewFloat64Flag(cli.Float64Flag{Name: "test"}),
|
||||
FlagName: "test",
|
||||
MapValue: 1.3,
|
||||
})
|
||||
expect(t, 1.3, c.Float64("test"))
|
||||
}
|
||||
|
||||
func TestFloat64ApplyInputSourceMethodContextSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewFloat64Flag(cli.Float64Flag{Name: "test"}),
|
||||
FlagName: "test",
|
||||
MapValue: 1.3,
|
||||
ContextValueString: fmt.Sprintf("%v", 1.4),
|
||||
})
|
||||
expect(t, 1.4, c.Float64("test"))
|
||||
}
|
||||
|
||||
func TestFloat64ApplyInputSourceMethodEnvVarSet(t *testing.T) {
|
||||
c := runTest(t, testApplyInputSource{
|
||||
Flag: NewFloat64Flag(cli.Float64Flag{Name: "test", EnvVar: "TEST"}),
|
||||
FlagName: "test",
|
||||
MapValue: 1.3,
|
||||
EnvVarName: "TEST",
|
||||
EnvVarValue: fmt.Sprintf("%v", 1.4),
|
||||
})
|
||||
expect(t, 1.4, c.Float64("test"))
|
||||
}
|
||||
|
||||
func runTest(t *testing.T, test testApplyInputSource) *cli.Context {
|
||||
inputSource := &MapInputSource{valueMap: map[interface{}]interface{}{test.FlagName: test.MapValue}}
|
||||
set := flag.NewFlagSet(test.FlagSetName, flag.ContinueOnError)
|
||||
c := cli.NewContext(nil, set, nil)
|
||||
if test.EnvVarName != "" && test.EnvVarValue != "" {
|
||||
os.Setenv(test.EnvVarName, test.EnvVarValue)
|
||||
defer os.Setenv(test.EnvVarName, "")
|
||||
}
|
||||
|
||||
test.Flag.Apply(set)
|
||||
if test.ContextValue != nil {
|
||||
flag := set.Lookup(test.FlagName)
|
||||
flag.Value = test.ContextValue
|
||||
}
|
||||
if test.ContextValueString != "" {
|
||||
set.Set(test.FlagName, test.ContextValueString)
|
||||
}
|
||||
test.Flag.ApplyInputSourceValue(c, inputSource)
|
||||
|
||||
return c
|
||||
}
|
||||
|
||||
type Parser [2]string
|
||||
|
||||
func (p *Parser) Set(value string) error {
|
||||
parts := strings.Split(value, ",")
|
||||
if len(parts) != 2 {
|
||||
return fmt.Errorf("invalid format")
|
||||
}
|
||||
|
||||
(*p)[0] = parts[0]
|
||||
(*p)[1] = parts[1]
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (p *Parser) String() string {
|
||||
return fmt.Sprintf("%s,%s", p[0], p[1])
|
||||
}
|
||||
-18
@@ -1,18 +0,0 @@
|
||||
package altsrc
|
||||
|
||||
import (
|
||||
"reflect"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func expect(t *testing.T, a interface{}, b interface{}) {
|
||||
if !reflect.DeepEqual(b, a) {
|
||||
t.Errorf("Expected %#v (type %v) - Got %#v (type %v)", b, reflect.TypeOf(b), a, reflect.TypeOf(a))
|
||||
}
|
||||
}
|
||||
|
||||
func refute(t *testing.T, a interface{}, b interface{}) {
|
||||
if a == b {
|
||||
t.Errorf("Did not expect %v (type %v) - Got %v (type %v)", b, reflect.TypeOf(b), a, reflect.TypeOf(a))
|
||||
}
|
||||
}
|
||||
-21
@@ -1,21 +0,0 @@
|
||||
package altsrc
|
||||
|
||||
import (
|
||||
"time"
|
||||
|
||||
"gopkg.in/urfave/cli.v1"
|
||||
)
|
||||
|
||||
// InputSourceContext is an interface used to allow
|
||||
// other input sources to be implemented as needed.
|
||||
type InputSourceContext interface {
|
||||
Int(name string) (int, error)
|
||||
Duration(name string) (time.Duration, error)
|
||||
Float64(name string) (float64, error)
|
||||
String(name string) (string, error)
|
||||
StringSlice(name string) ([]string, error)
|
||||
IntSlice(name string) ([]int, error)
|
||||
Generic(name string) (cli.Generic, error)
|
||||
Bool(name string) (bool, error)
|
||||
BoolT(name string) (bool, error)
|
||||
}
|
||||
-248
@@ -1,248 +0,0 @@
|
||||
package altsrc
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"gopkg.in/urfave/cli.v1"
|
||||
)
|
||||
|
||||
// MapInputSource implements InputSourceContext to return
|
||||
// data from the map that is loaded.
|
||||
type MapInputSource struct {
|
||||
valueMap map[interface{}]interface{}
|
||||
}
|
||||
|
||||
// nestedVal checks if the name has '.' delimiters.
|
||||
// If so, it tries to traverse the tree by the '.' delimited sections to find
|
||||
// a nested value for the key.
|
||||
func nestedVal(name string, tree map[interface{}]interface{}) (interface{}, bool) {
|
||||
if sections := strings.Split(name, "."); len(sections) > 1 {
|
||||
node := tree
|
||||
for _, section := range sections[:len(sections)-1] {
|
||||
if child, ok := node[section]; !ok {
|
||||
return nil, false
|
||||
} else {
|
||||
if ctype, ok := child.(map[interface{}]interface{}); !ok {
|
||||
return nil, false
|
||||
} else {
|
||||
node = ctype
|
||||
}
|
||||
}
|
||||
}
|
||||
if val, ok := node[sections[len(sections)-1]]; ok {
|
||||
return val, true
|
||||
}
|
||||
}
|
||||
return nil, false
|
||||
}
|
||||
|
||||
// Int returns an int from the map if it exists otherwise returns 0
|
||||
func (fsm *MapInputSource) Int(name string) (int, error) {
|
||||
otherGenericValue, exists := fsm.valueMap[name]
|
||||
if exists {
|
||||
otherValue, isType := otherGenericValue.(int)
|
||||
if !isType {
|
||||
return 0, incorrectTypeForFlagError(name, "int", otherGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
|
||||
if exists {
|
||||
otherValue, isType := nestedGenericValue.(int)
|
||||
if !isType {
|
||||
return 0, incorrectTypeForFlagError(name, "int", nestedGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
|
||||
return 0, nil
|
||||
}
|
||||
|
||||
// Duration returns a duration from the map if it exists otherwise returns 0
|
||||
func (fsm *MapInputSource) Duration(name string) (time.Duration, error) {
|
||||
otherGenericValue, exists := fsm.valueMap[name]
|
||||
if exists {
|
||||
otherValue, isType := otherGenericValue.(time.Duration)
|
||||
if !isType {
|
||||
return 0, incorrectTypeForFlagError(name, "duration", otherGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
|
||||
if exists {
|
||||
otherValue, isType := nestedGenericValue.(time.Duration)
|
||||
if !isType {
|
||||
return 0, incorrectTypeForFlagError(name, "duration", nestedGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
|
||||
return 0, nil
|
||||
}
|
||||
|
||||
// Float64 returns an float64 from the map if it exists otherwise returns 0
|
||||
func (fsm *MapInputSource) Float64(name string) (float64, error) {
|
||||
otherGenericValue, exists := fsm.valueMap[name]
|
||||
if exists {
|
||||
otherValue, isType := otherGenericValue.(float64)
|
||||
if !isType {
|
||||
return 0, incorrectTypeForFlagError(name, "float64", otherGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
|
||||
if exists {
|
||||
otherValue, isType := nestedGenericValue.(float64)
|
||||
if !isType {
|
||||
return 0, incorrectTypeForFlagError(name, "float64", nestedGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
|
||||
return 0, nil
|
||||
}
|
||||
|
||||
// String returns a string from the map if it exists otherwise returns an empty string
|
||||
func (fsm *MapInputSource) String(name string) (string, error) {
|
||||
otherGenericValue, exists := fsm.valueMap[name]
|
||||
if exists {
|
||||
otherValue, isType := otherGenericValue.(string)
|
||||
if !isType {
|
||||
return "", incorrectTypeForFlagError(name, "string", otherGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
|
||||
if exists {
|
||||
otherValue, isType := nestedGenericValue.(string)
|
||||
if !isType {
|
||||
return "", incorrectTypeForFlagError(name, "string", nestedGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
|
||||
return "", nil
|
||||
}
|
||||
|
||||
// StringSlice returns an []string from the map if it exists otherwise returns nil
|
||||
func (fsm *MapInputSource) StringSlice(name string) ([]string, error) {
|
||||
otherGenericValue, exists := fsm.valueMap[name]
|
||||
if exists {
|
||||
otherValue, isType := otherGenericValue.([]string)
|
||||
if !isType {
|
||||
return nil, incorrectTypeForFlagError(name, "[]string", otherGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
|
||||
if exists {
|
||||
otherValue, isType := nestedGenericValue.([]string)
|
||||
if !isType {
|
||||
return nil, incorrectTypeForFlagError(name, "[]string", nestedGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
// IntSlice returns an []int from the map if it exists otherwise returns nil
|
||||
func (fsm *MapInputSource) IntSlice(name string) ([]int, error) {
|
||||
otherGenericValue, exists := fsm.valueMap[name]
|
||||
if exists {
|
||||
otherValue, isType := otherGenericValue.([]int)
|
||||
if !isType {
|
||||
return nil, incorrectTypeForFlagError(name, "[]int", otherGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
|
||||
if exists {
|
||||
otherValue, isType := nestedGenericValue.([]int)
|
||||
if !isType {
|
||||
return nil, incorrectTypeForFlagError(name, "[]int", nestedGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
// Generic returns an cli.Generic from the map if it exists otherwise returns nil
|
||||
func (fsm *MapInputSource) Generic(name string) (cli.Generic, error) {
|
||||
otherGenericValue, exists := fsm.valueMap[name]
|
||||
if exists {
|
||||
otherValue, isType := otherGenericValue.(cli.Generic)
|
||||
if !isType {
|
||||
return nil, incorrectTypeForFlagError(name, "cli.Generic", otherGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
|
||||
if exists {
|
||||
otherValue, isType := nestedGenericValue.(cli.Generic)
|
||||
if !isType {
|
||||
return nil, incorrectTypeForFlagError(name, "cli.Generic", nestedGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
// Bool returns an bool from the map otherwise returns false
|
||||
func (fsm *MapInputSource) Bool(name string) (bool, error) {
|
||||
otherGenericValue, exists := fsm.valueMap[name]
|
||||
if exists {
|
||||
otherValue, isType := otherGenericValue.(bool)
|
||||
if !isType {
|
||||
return false, incorrectTypeForFlagError(name, "bool", otherGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
|
||||
if exists {
|
||||
otherValue, isType := nestedGenericValue.(bool)
|
||||
if !isType {
|
||||
return false, incorrectTypeForFlagError(name, "bool", nestedGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
|
||||
return false, nil
|
||||
}
|
||||
|
||||
// BoolT returns an bool from the map otherwise returns true
|
||||
func (fsm *MapInputSource) BoolT(name string) (bool, error) {
|
||||
otherGenericValue, exists := fsm.valueMap[name]
|
||||
if exists {
|
||||
otherValue, isType := otherGenericValue.(bool)
|
||||
if !isType {
|
||||
return true, incorrectTypeForFlagError(name, "bool", otherGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
nestedGenericValue, exists := nestedVal(name, fsm.valueMap)
|
||||
if exists {
|
||||
otherValue, isType := nestedGenericValue.(bool)
|
||||
if !isType {
|
||||
return true, incorrectTypeForFlagError(name, "bool", nestedGenericValue)
|
||||
}
|
||||
return otherValue, nil
|
||||
}
|
||||
|
||||
return true, nil
|
||||
}
|
||||
|
||||
func incorrectTypeForFlagError(name, expectedTypeName string, value interface{}) error {
|
||||
valueType := reflect.TypeOf(value)
|
||||
valueTypeName := ""
|
||||
if valueType != nil {
|
||||
valueTypeName = valueType.Name()
|
||||
}
|
||||
|
||||
return fmt.Errorf("Mismatched type for flag '%s'. Expected '%s' but actual is '%s'", name, expectedTypeName, valueTypeName)
|
||||
}
|
||||
-310
@@ -1,310 +0,0 @@
|
||||
// Disabling building of toml support in cases where golang is 1.0 or 1.1
|
||||
// as the encoding library is not implemented or supported.
|
||||
|
||||
// +build go1.2
|
||||
|
||||
package altsrc
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"testing"
|
||||
|
||||
"gopkg.in/urfave/cli.v1"
|
||||
)
|
||||
|
||||
func TestCommandTomFileTest(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.toml", []byte("test = 15"), 0666)
|
||||
defer os.Remove("current.toml")
|
||||
test := []string{"test-cmd", "--load", "current.toml"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("test")
|
||||
expect(t, val, 15)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "test"}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewTomlSourceFromFlagFunc("load"))
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
|
||||
func TestCommandTomlFileTestGlobalEnvVarWins(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.toml", []byte("test = 15"), 0666)
|
||||
defer os.Remove("current.toml")
|
||||
|
||||
os.Setenv("THE_TEST", "10")
|
||||
defer os.Setenv("THE_TEST", "")
|
||||
test := []string{"test-cmd", "--load", "current.toml"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("test")
|
||||
expect(t, val, 10)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "test", EnvVar: "THE_TEST"}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewTomlSourceFromFlagFunc("load"))
|
||||
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
|
||||
func TestCommandTomlFileTestGlobalEnvVarWinsNested(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.toml", []byte("[top]\ntest = 15"), 0666)
|
||||
defer os.Remove("current.toml")
|
||||
|
||||
os.Setenv("THE_TEST", "10")
|
||||
defer os.Setenv("THE_TEST", "")
|
||||
test := []string{"test-cmd", "--load", "current.toml"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("top.test")
|
||||
expect(t, val, 10)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "top.test", EnvVar: "THE_TEST"}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewTomlSourceFromFlagFunc("load"))
|
||||
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
|
||||
func TestCommandTomlFileTestSpecifiedFlagWins(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.toml", []byte("test = 15"), 0666)
|
||||
defer os.Remove("current.toml")
|
||||
|
||||
test := []string{"test-cmd", "--load", "current.toml", "--test", "7"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("test")
|
||||
expect(t, val, 7)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "test"}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewTomlSourceFromFlagFunc("load"))
|
||||
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
|
||||
func TestCommandTomlFileTestSpecifiedFlagWinsNested(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.toml", []byte(`[top]
|
||||
test = 15`), 0666)
|
||||
defer os.Remove("current.toml")
|
||||
|
||||
test := []string{"test-cmd", "--load", "current.toml", "--top.test", "7"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("top.test")
|
||||
expect(t, val, 7)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "top.test"}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewTomlSourceFromFlagFunc("load"))
|
||||
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
|
||||
func TestCommandTomlFileTestDefaultValueFileWins(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.toml", []byte("test = 15"), 0666)
|
||||
defer os.Remove("current.toml")
|
||||
|
||||
test := []string{"test-cmd", "--load", "current.toml"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("test")
|
||||
expect(t, val, 15)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "test", Value: 7}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewTomlSourceFromFlagFunc("load"))
|
||||
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
|
||||
func TestCommandTomlFileTestDefaultValueFileWinsNested(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.toml", []byte("[top]\ntest = 15"), 0666)
|
||||
defer os.Remove("current.toml")
|
||||
|
||||
test := []string{"test-cmd", "--load", "current.toml"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("top.test")
|
||||
expect(t, val, 15)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "top.test", Value: 7}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewTomlSourceFromFlagFunc("load"))
|
||||
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
|
||||
func TestCommandTomlFileFlagHasDefaultGlobalEnvTomlSetGlobalEnvWins(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.toml", []byte("test = 15"), 0666)
|
||||
defer os.Remove("current.toml")
|
||||
|
||||
os.Setenv("THE_TEST", "11")
|
||||
defer os.Setenv("THE_TEST", "")
|
||||
|
||||
test := []string{"test-cmd", "--load", "current.toml"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("test")
|
||||
expect(t, val, 11)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "test", Value: 7, EnvVar: "THE_TEST"}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewTomlSourceFromFlagFunc("load"))
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
|
||||
func TestCommandTomlFileFlagHasDefaultGlobalEnvTomlSetGlobalEnvWinsNested(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.toml", []byte("[top]\ntest = 15"), 0666)
|
||||
defer os.Remove("current.toml")
|
||||
|
||||
os.Setenv("THE_TEST", "11")
|
||||
defer os.Setenv("THE_TEST", "")
|
||||
|
||||
test := []string{"test-cmd", "--load", "current.toml"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("top.test")
|
||||
expect(t, val, 11)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "top.test", Value: 7, EnvVar: "THE_TEST"}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewTomlSourceFromFlagFunc("load"))
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
-113
@@ -1,113 +0,0 @@
|
||||
// Disabling building of toml support in cases where golang is 1.0 or 1.1
|
||||
// as the encoding library is not implemented or supported.
|
||||
|
||||
// +build go1.2
|
||||
|
||||
package altsrc
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
|
||||
"github.com/BurntSushi/toml"
|
||||
"gopkg.in/urfave/cli.v1"
|
||||
)
|
||||
|
||||
type tomlMap struct {
|
||||
Map map[interface{}]interface{}
|
||||
}
|
||||
|
||||
func unmarshalMap(i interface{}) (ret map[interface{}]interface{}, err error) {
|
||||
ret = make(map[interface{}]interface{})
|
||||
m := i.(map[string]interface{})
|
||||
for key, val := range m {
|
||||
v := reflect.ValueOf(val)
|
||||
switch v.Kind() {
|
||||
case reflect.Bool:
|
||||
ret[key] = val.(bool)
|
||||
case reflect.String:
|
||||
ret[key] = val.(string)
|
||||
case reflect.Int:
|
||||
ret[key] = int(val.(int))
|
||||
case reflect.Int8:
|
||||
ret[key] = int(val.(int8))
|
||||
case reflect.Int16:
|
||||
ret[key] = int(val.(int16))
|
||||
case reflect.Int32:
|
||||
ret[key] = int(val.(int32))
|
||||
case reflect.Int64:
|
||||
ret[key] = int(val.(int64))
|
||||
case reflect.Uint:
|
||||
ret[key] = int(val.(uint))
|
||||
case reflect.Uint8:
|
||||
ret[key] = int(val.(uint8))
|
||||
case reflect.Uint16:
|
||||
ret[key] = int(val.(uint16))
|
||||
case reflect.Uint32:
|
||||
ret[key] = int(val.(uint32))
|
||||
case reflect.Uint64:
|
||||
ret[key] = int(val.(uint64))
|
||||
case reflect.Float32:
|
||||
ret[key] = float64(val.(float32))
|
||||
case reflect.Float64:
|
||||
ret[key] = float64(val.(float64))
|
||||
case reflect.Map:
|
||||
if tmp, err := unmarshalMap(val); err == nil {
|
||||
ret[key] = tmp
|
||||
} else {
|
||||
return nil, err
|
||||
}
|
||||
case reflect.Array:
|
||||
fallthrough // [todo] - Support array type
|
||||
default:
|
||||
return nil, fmt.Errorf("Unsupported: type = %#v", v.Kind())
|
||||
}
|
||||
}
|
||||
return ret, nil
|
||||
}
|
||||
|
||||
func (self *tomlMap) UnmarshalTOML(i interface{}) error {
|
||||
if tmp, err := unmarshalMap(i); err == nil {
|
||||
self.Map = tmp
|
||||
} else {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type tomlSourceContext struct {
|
||||
FilePath string
|
||||
}
|
||||
|
||||
// NewTomlSourceFromFile creates a new TOML InputSourceContext from a filepath.
|
||||
func NewTomlSourceFromFile(file string) (InputSourceContext, error) {
|
||||
tsc := &tomlSourceContext{FilePath: file}
|
||||
var results tomlMap = tomlMap{}
|
||||
if err := readCommandToml(tsc.FilePath, &results); err != nil {
|
||||
return nil, fmt.Errorf("Unable to load TOML file '%s': inner error: \n'%v'", tsc.FilePath, err.Error())
|
||||
}
|
||||
return &MapInputSource{valueMap: results.Map}, nil
|
||||
}
|
||||
|
||||
// NewTomlSourceFromFlagFunc creates a new TOML InputSourceContext from a provided flag name and source context.
|
||||
func NewTomlSourceFromFlagFunc(flagFileName string) func(context *cli.Context) (InputSourceContext, error) {
|
||||
return func(context *cli.Context) (InputSourceContext, error) {
|
||||
filePath := context.String(flagFileName)
|
||||
return NewTomlSourceFromFile(filePath)
|
||||
}
|
||||
}
|
||||
|
||||
func readCommandToml(filePath string, container interface{}) (err error) {
|
||||
b, err := loadDataFrom(filePath)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
err = toml.Unmarshal(b, container)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
err = nil
|
||||
return
|
||||
}
|
||||
-313
@@ -1,313 +0,0 @@
|
||||
// Disabling building of yaml support in cases where golang is 1.0 or 1.1
|
||||
// as the encoding library is not implemented or supported.
|
||||
|
||||
// +build go1.2
|
||||
|
||||
package altsrc
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"testing"
|
||||
|
||||
"gopkg.in/urfave/cli.v1"
|
||||
)
|
||||
|
||||
func TestCommandYamlFileTest(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.yaml", []byte("test: 15"), 0666)
|
||||
defer os.Remove("current.yaml")
|
||||
test := []string{"test-cmd", "--load", "current.yaml"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("test")
|
||||
expect(t, val, 15)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "test"}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
|
||||
func TestCommandYamlFileTestGlobalEnvVarWins(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.yaml", []byte("test: 15"), 0666)
|
||||
defer os.Remove("current.yaml")
|
||||
|
||||
os.Setenv("THE_TEST", "10")
|
||||
defer os.Setenv("THE_TEST", "")
|
||||
test := []string{"test-cmd", "--load", "current.yaml"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("test")
|
||||
expect(t, val, 10)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "test", EnvVar: "THE_TEST"}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
|
||||
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
|
||||
func TestCommandYamlFileTestGlobalEnvVarWinsNested(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.yaml", []byte(`top:
|
||||
test: 15`), 0666)
|
||||
defer os.Remove("current.yaml")
|
||||
|
||||
os.Setenv("THE_TEST", "10")
|
||||
defer os.Setenv("THE_TEST", "")
|
||||
test := []string{"test-cmd", "--load", "current.yaml"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("top.test")
|
||||
expect(t, val, 10)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "top.test", EnvVar: "THE_TEST"}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
|
||||
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
|
||||
func TestCommandYamlFileTestSpecifiedFlagWins(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.yaml", []byte("test: 15"), 0666)
|
||||
defer os.Remove("current.yaml")
|
||||
|
||||
test := []string{"test-cmd", "--load", "current.yaml", "--test", "7"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("test")
|
||||
expect(t, val, 7)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "test"}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
|
||||
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
|
||||
func TestCommandYamlFileTestSpecifiedFlagWinsNested(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.yaml", []byte(`top:
|
||||
test: 15`), 0666)
|
||||
defer os.Remove("current.yaml")
|
||||
|
||||
test := []string{"test-cmd", "--load", "current.yaml", "--top.test", "7"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("top.test")
|
||||
expect(t, val, 7)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "top.test"}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
|
||||
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
|
||||
func TestCommandYamlFileTestDefaultValueFileWins(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.yaml", []byte("test: 15"), 0666)
|
||||
defer os.Remove("current.yaml")
|
||||
|
||||
test := []string{"test-cmd", "--load", "current.yaml"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("test")
|
||||
expect(t, val, 15)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "test", Value: 7}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
|
||||
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
|
||||
func TestCommandYamlFileTestDefaultValueFileWinsNested(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.yaml", []byte(`top:
|
||||
test: 15`), 0666)
|
||||
defer os.Remove("current.yaml")
|
||||
|
||||
test := []string{"test-cmd", "--load", "current.yaml"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("top.test")
|
||||
expect(t, val, 15)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "top.test", Value: 7}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
|
||||
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
|
||||
func TestCommandYamlFileFlagHasDefaultGlobalEnvYamlSetGlobalEnvWins(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.yaml", []byte("test: 15"), 0666)
|
||||
defer os.Remove("current.yaml")
|
||||
|
||||
os.Setenv("THE_TEST", "11")
|
||||
defer os.Setenv("THE_TEST", "")
|
||||
|
||||
test := []string{"test-cmd", "--load", "current.yaml"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("test")
|
||||
expect(t, val, 11)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "test", Value: 7, EnvVar: "THE_TEST"}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
|
||||
func TestCommandYamlFileFlagHasDefaultGlobalEnvYamlSetGlobalEnvWinsNested(t *testing.T) {
|
||||
app := cli.NewApp()
|
||||
set := flag.NewFlagSet("test", 0)
|
||||
ioutil.WriteFile("current.yaml", []byte(`top:
|
||||
test: 15`), 0666)
|
||||
defer os.Remove("current.yaml")
|
||||
|
||||
os.Setenv("THE_TEST", "11")
|
||||
defer os.Setenv("THE_TEST", "")
|
||||
|
||||
test := []string{"test-cmd", "--load", "current.yaml"}
|
||||
set.Parse(test)
|
||||
|
||||
c := cli.NewContext(app, set, nil)
|
||||
|
||||
command := &cli.Command{
|
||||
Name: "test-cmd",
|
||||
Aliases: []string{"tc"},
|
||||
Usage: "this is for testing",
|
||||
Description: "testing",
|
||||
Action: func(c *cli.Context) error {
|
||||
val := c.Int("top.test")
|
||||
expect(t, val, 11)
|
||||
return nil
|
||||
},
|
||||
Flags: []cli.Flag{
|
||||
NewIntFlag(cli.IntFlag{Name: "top.test", Value: 7, EnvVar: "THE_TEST"}),
|
||||
cli.StringFlag{Name: "load"}},
|
||||
}
|
||||
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
|
||||
err := command.Run(c)
|
||||
|
||||
expect(t, err, nil)
|
||||
}
|
||||
-84
@@ -1,84 +0,0 @@
|
||||
// Disabling building of yaml support in cases where golang is 1.0 or 1.1
|
||||
// as the encoding library is not implemented or supported.
|
||||
|
||||
// +build go1.2
|
||||
|
||||
package altsrc
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"net/http"
|
||||
"net/url"
|
||||
"os"
|
||||
|
||||
"gopkg.in/urfave/cli.v1"
|
||||
|
||||
"gopkg.in/yaml.v2"
|
||||
)
|
||||
|
||||
type yamlSourceContext struct {
|
||||
FilePath string
|
||||
}
|
||||
|
||||
// NewYamlSourceFromFile creates a new Yaml InputSourceContext from a filepath.
|
||||
func NewYamlSourceFromFile(file string) (InputSourceContext, error) {
|
||||
ysc := &yamlSourceContext{FilePath: file}
|
||||
var results map[interface{}]interface{}
|
||||
err := readCommandYaml(ysc.FilePath, &results)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("Unable to load Yaml file '%s': inner error: \n'%v'", ysc.FilePath, err.Error())
|
||||
}
|
||||
|
||||
return &MapInputSource{valueMap: results}, nil
|
||||
}
|
||||
|
||||
// NewYamlSourceFromFlagFunc creates a new Yaml InputSourceContext from a provided flag name and source context.
|
||||
func NewYamlSourceFromFlagFunc(flagFileName string) func(context *cli.Context) (InputSourceContext, error) {
|
||||
return func(context *cli.Context) (InputSourceContext, error) {
|
||||
filePath := context.String(flagFileName)
|
||||
return NewYamlSourceFromFile(filePath)
|
||||
}
|
||||
}
|
||||
|
||||
func readCommandYaml(filePath string, container interface{}) (err error) {
|
||||
b, err := loadDataFrom(filePath)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
err = yaml.Unmarshal(b, container)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
err = nil
|
||||
return
|
||||
}
|
||||
|
||||
func loadDataFrom(filePath string) ([]byte, error) {
|
||||
u, err := url.Parse(filePath)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
if u.Host != "" { // i have a host, now do i support the scheme?
|
||||
switch u.Scheme {
|
||||
case "http", "https":
|
||||
res, err := http.Get(filePath)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return ioutil.ReadAll(res.Body)
|
||||
default:
|
||||
return nil, fmt.Errorf("scheme of %s is unsupported", filePath)
|
||||
}
|
||||
} else if u.Path != "" { // i dont have a host, but I have a path. I am a local file.
|
||||
if _, notFoundFileErr := os.Stat(filePath); notFoundFileErr != nil {
|
||||
return nil, fmt.Errorf("Cannot read from file: '%s' because it does not exist.", filePath)
|
||||
}
|
||||
return ioutil.ReadFile(filePath)
|
||||
} else {
|
||||
return nil, fmt.Errorf("unable to determine how to load from path %s", filePath)
|
||||
}
|
||||
}
|
||||
-492
@@ -1,492 +0,0 @@
|
||||
package cli
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"sort"
|
||||
"time"
|
||||
)
|
||||
|
||||
var (
|
||||
changeLogURL = "https://github.com/urfave/cli/blob/master/CHANGELOG.md"
|
||||
appActionDeprecationURL = fmt.Sprintf("%s#deprecated-cli-app-action-signature", changeLogURL)
|
||||
runAndExitOnErrorDeprecationURL = fmt.Sprintf("%s#deprecated-cli-app-runandexitonerror", changeLogURL)
|
||||
|
||||
contactSysadmin = "This is an error in the application. Please contact the distributor of this application if this is not you."
|
||||
|
||||
errInvalidActionType = NewExitError("ERROR invalid Action type. "+
|
||||
fmt.Sprintf("Must be `func(*Context`)` or `func(*Context) error). %s", contactSysadmin)+
|
||||
fmt.Sprintf("See %s", appActionDeprecationURL), 2)
|
||||
)
|
||||
|
||||
// App is the main structure of a cli application. It is recommended that
|
||||
// an app be created with the cli.NewApp() function
|
||||
type App struct {
|
||||
// The name of the program. Defaults to path.Base(os.Args[0])
|
||||
Name string
|
||||
// Full name of command for help, defaults to Name
|
||||
HelpName string
|
||||
// Description of the program.
|
||||
Usage string
|
||||
// Text to override the USAGE section of help
|
||||
UsageText string
|
||||
// Description of the program argument format.
|
||||
ArgsUsage string
|
||||
// Version of the program
|
||||
Version string
|
||||
// Description of the program
|
||||
Description string
|
||||
// List of commands to execute
|
||||
Commands []Command
|
||||
// List of flags to parse
|
||||
Flags []Flag
|
||||
// Boolean to enable bash completion commands
|
||||
EnableBashCompletion bool
|
||||
// Boolean to hide built-in help command
|
||||
HideHelp bool
|
||||
// Boolean to hide built-in version flag and the VERSION section of help
|
||||
HideVersion bool
|
||||
// Populate on app startup, only gettable through method Categories()
|
||||
categories CommandCategories
|
||||
// An action to execute when the bash-completion flag is set
|
||||
BashComplete BashCompleteFunc
|
||||
// An action to execute before any subcommands are run, but after the context is ready
|
||||
// If a non-nil error is returned, no subcommands are run
|
||||
Before BeforeFunc
|
||||
// An action to execute after any subcommands are run, but after the subcommand has finished
|
||||
// It is run even if Action() panics
|
||||
After AfterFunc
|
||||
|
||||
// The action to execute when no subcommands are specified
|
||||
// Expects a `cli.ActionFunc` but will accept the *deprecated* signature of `func(*cli.Context) {}`
|
||||
// *Note*: support for the deprecated `Action` signature will be removed in a future version
|
||||
Action interface{}
|
||||
|
||||
// Execute this function if the proper command cannot be found
|
||||
CommandNotFound CommandNotFoundFunc
|
||||
// Execute this function if an usage error occurs
|
||||
OnUsageError OnUsageErrorFunc
|
||||
// Compilation date
|
||||
Compiled time.Time
|
||||
// List of all authors who contributed
|
||||
Authors []Author
|
||||
// Copyright of the binary if any
|
||||
Copyright string
|
||||
// Name of Author (Note: Use App.Authors, this is deprecated)
|
||||
Author string
|
||||
// Email of Author (Note: Use App.Authors, this is deprecated)
|
||||
Email string
|
||||
// Writer writer to write output to
|
||||
Writer io.Writer
|
||||
// ErrWriter writes error output
|
||||
ErrWriter io.Writer
|
||||
// Other custom info
|
||||
Metadata map[string]interface{}
|
||||
|
||||
didSetup bool
|
||||
}
|
||||
|
||||
// Tries to find out when this binary was compiled.
|
||||
// Returns the current time if it fails to find it.
|
||||
func compileTime() time.Time {
|
||||
info, err := os.Stat(os.Args[0])
|
||||
if err != nil {
|
||||
return time.Now()
|
||||
}
|
||||
return info.ModTime()
|
||||
}
|
||||
|
||||
// NewApp creates a new cli Application with some reasonable defaults for Name,
|
||||
// Usage, Version and Action.
|
||||
func NewApp() *App {
|
||||
return &App{
|
||||
Name: filepath.Base(os.Args[0]),
|
||||
HelpName: filepath.Base(os.Args[0]),
|
||||
Usage: "A new cli application",
|
||||
UsageText: "",
|
||||
Version: "0.0.0",
|
||||
BashComplete: DefaultAppComplete,
|
||||
Action: helpCommand.Action,
|
||||
Compiled: compileTime(),
|
||||
Writer: os.Stdout,
|
||||
}
|
||||
}
|
||||
|
||||
// Setup runs initialization code to ensure all data structures are ready for
|
||||
// `Run` or inspection prior to `Run`. It is internally called by `Run`, but
|
||||
// will return early if setup has already happened.
|
||||
func (a *App) Setup() {
|
||||
if a.didSetup {
|
||||
return
|
||||
}
|
||||
|
||||
a.didSetup = true
|
||||
|
||||
if a.Author != "" || a.Email != "" {
|
||||
a.Authors = append(a.Authors, Author{Name: a.Author, Email: a.Email})
|
||||
}
|
||||
|
||||
newCmds := []Command{}
|
||||
for _, c := range a.Commands {
|
||||
if c.HelpName == "" {
|
||||
c.HelpName = fmt.Sprintf("%s %s", a.HelpName, c.Name)
|
||||
}
|
||||
newCmds = append(newCmds, c)
|
||||
}
|
||||
a.Commands = newCmds
|
||||
|
||||
if a.Command(helpCommand.Name) == nil && !a.HideHelp {
|
||||
a.Commands = append(a.Commands, helpCommand)
|
||||
if (HelpFlag != BoolFlag{}) {
|
||||
a.appendFlag(HelpFlag)
|
||||
}
|
||||
}
|
||||
|
||||
if !a.HideVersion {
|
||||
a.appendFlag(VersionFlag)
|
||||
}
|
||||
|
||||
a.categories = CommandCategories{}
|
||||
for _, command := range a.Commands {
|
||||
a.categories = a.categories.AddCommand(command.Category, command)
|
||||
}
|
||||
sort.Sort(a.categories)
|
||||
|
||||
if a.Metadata == nil {
|
||||
a.Metadata = make(map[string]interface{})
|
||||
}
|
||||
|
||||
if a.Writer == nil {
|
||||
a.Writer = os.Stdout
|
||||
}
|
||||
}
|
||||
|
||||
// Run is the entry point to the cli app. Parses the arguments slice and routes
|
||||
// to the proper flag/args combination
|
||||
func (a *App) Run(arguments []string) (err error) {
|
||||
a.Setup()
|
||||
|
||||
// handle the completion flag separately from the flagset since
|
||||
// completion could be attempted after a flag, but before its value was put
|
||||
// on the command line. this causes the flagset to interpret the completion
|
||||
// flag name as the value of the flag before it which is undesirable
|
||||
// note that we can only do this because the shell autocomplete function
|
||||
// always appends the completion flag at the end of the command
|
||||
shellComplete, arguments := checkShellCompleteFlag(a, arguments)
|
||||
|
||||
// parse flags
|
||||
set, err := flagSet(a.Name, a.Flags)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
set.SetOutput(ioutil.Discard)
|
||||
err = set.Parse(arguments[1:])
|
||||
nerr := normalizeFlags(a.Flags, set)
|
||||
context := NewContext(a, set, nil)
|
||||
if nerr != nil {
|
||||
fmt.Fprintln(a.Writer, nerr)
|
||||
ShowAppHelp(context)
|
||||
return nerr
|
||||
}
|
||||
context.shellComplete = shellComplete
|
||||
|
||||
if checkCompletions(context) {
|
||||
return nil
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
if a.OnUsageError != nil {
|
||||
err := a.OnUsageError(context, err, false)
|
||||
HandleExitCoder(err)
|
||||
return err
|
||||
}
|
||||
fmt.Fprintf(a.Writer, "%s %s\n\n", "Incorrect Usage.", err.Error())
|
||||
ShowAppHelp(context)
|
||||
return err
|
||||
}
|
||||
|
||||
if !a.HideHelp && checkHelp(context) {
|
||||
ShowAppHelp(context)
|
||||
return nil
|
||||
}
|
||||
|
||||
if !a.HideVersion && checkVersion(context) {
|
||||
ShowVersion(context)
|
||||
return nil
|
||||
}
|
||||
|
||||
if a.After != nil {
|
||||
defer func() {
|
||||
if afterErr := a.After(context); afterErr != nil {
|
||||
if err != nil {
|
||||
err = NewMultiError(err, afterErr)
|
||||
} else {
|
||||
err = afterErr
|
||||
}
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
if a.Before != nil {
|
||||
beforeErr := a.Before(context)
|
||||
if beforeErr != nil {
|
||||
fmt.Fprintf(a.Writer, "%v\n\n", beforeErr)
|
||||
ShowAppHelp(context)
|
||||
HandleExitCoder(beforeErr)
|
||||
err = beforeErr
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
args := context.Args()
|
||||
if args.Present() {
|
||||
name := args.First()
|
||||
c := a.Command(name)
|
||||
if c != nil {
|
||||
return c.Run(context)
|
||||
}
|
||||
}
|
||||
|
||||
if a.Action == nil {
|
||||
a.Action = helpCommand.Action
|
||||
}
|
||||
|
||||
// Run default Action
|
||||
err = HandleAction(a.Action, context)
|
||||
|
||||
HandleExitCoder(err)
|
||||
return err
|
||||
}
|
||||
|
||||
// RunAndExitOnError calls .Run() and exits non-zero if an error was returned
|
||||
//
|
||||
// Deprecated: instead you should return an error that fulfills cli.ExitCoder
|
||||
// to cli.App.Run. This will cause the application to exit with the given eror
|
||||
// code in the cli.ExitCoder
|
||||
func (a *App) RunAndExitOnError() {
|
||||
if err := a.Run(os.Args); err != nil {
|
||||
fmt.Fprintln(a.errWriter(), err)
|
||||
OsExiter(1)
|
||||
}
|
||||
}
|
||||
|
||||
// RunAsSubcommand invokes the subcommand given the context, parses ctx.Args() to
|
||||
// generate command-specific flags
|
||||
func (a *App) RunAsSubcommand(ctx *Context) (err error) {
|
||||
// append help to commands
|
||||
if len(a.Commands) > 0 {
|
||||
if a.Command(helpCommand.Name) == nil && !a.HideHelp {
|
||||
a.Commands = append(a.Commands, helpCommand)
|
||||
if (HelpFlag != BoolFlag{}) {
|
||||
a.appendFlag(HelpFlag)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
newCmds := []Command{}
|
||||
for _, c := range a.Commands {
|
||||
if c.HelpName == "" {
|
||||
c.HelpName = fmt.Sprintf("%s %s", a.HelpName, c.Name)
|
||||
}
|
||||
newCmds = append(newCmds, c)
|
||||
}
|
||||
a.Commands = newCmds
|
||||
|
||||
// parse flags
|
||||
set, err := flagSet(a.Name, a.Flags)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
set.SetOutput(ioutil.Discard)
|
||||
err = set.Parse(ctx.Args().Tail())
|
||||
nerr := normalizeFlags(a.Flags, set)
|
||||
context := NewContext(a, set, ctx)
|
||||
|
||||
if nerr != nil {
|
||||
fmt.Fprintln(a.Writer, nerr)
|
||||
fmt.Fprintln(a.Writer)
|
||||
if len(a.Commands) > 0 {
|
||||
ShowSubcommandHelp(context)
|
||||
} else {
|
||||
ShowCommandHelp(ctx, context.Args().First())
|
||||
}
|
||||
return nerr
|
||||
}
|
||||
|
||||
if checkCompletions(context) {
|
||||
return nil
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
if a.OnUsageError != nil {
|
||||
err = a.OnUsageError(context, err, true)
|
||||
HandleExitCoder(err)
|
||||
return err
|
||||
}
|
||||
fmt.Fprintf(a.Writer, "%s %s\n\n", "Incorrect Usage.", err.Error())
|
||||
ShowSubcommandHelp(context)
|
||||
return err
|
||||
}
|
||||
|
||||
if len(a.Commands) > 0 {
|
||||
if checkSubcommandHelp(context) {
|
||||
return nil
|
||||
}
|
||||
} else {
|
||||
if checkCommandHelp(ctx, context.Args().First()) {
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
if a.After != nil {
|
||||
defer func() {
|
||||
afterErr := a.After(context)
|
||||
if afterErr != nil {
|
||||
HandleExitCoder(err)
|
||||
if err != nil {
|
||||
err = NewMultiError(err, afterErr)
|
||||
} else {
|
||||
err = afterErr
|
||||
}
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
if a.Before != nil {
|
||||
beforeErr := a.Before(context)
|
||||
if beforeErr != nil {
|
||||
HandleExitCoder(beforeErr)
|
||||
err = beforeErr
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
args := context.Args()
|
||||
if args.Present() {
|
||||
name := args.First()
|
||||
c := a.Command(name)
|
||||
if c != nil {
|
||||
return c.Run(context)
|
||||
}
|
||||
}
|
||||
|
||||
// Run default Action
|
||||
err = HandleAction(a.Action, context)
|
||||
|
||||
HandleExitCoder(err)
|
||||
return err
|
||||
}
|
||||
|
||||
// Command returns the named command on App. Returns nil if the command does not exist
|
||||
func (a *App) Command(name string) *Command {
|
||||
for _, c := range a.Commands {
|
||||
if c.HasName(name) {
|
||||
return &c
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Categories returns a slice containing all the categories with the commands they contain
|
||||
func (a *App) Categories() CommandCategories {
|
||||
return a.categories
|
||||
}
|
||||
|
||||
// VisibleCategories returns a slice of categories and commands that are
|
||||
// Hidden=false
|
||||
func (a *App) VisibleCategories() []*CommandCategory {
|
||||
ret := []*CommandCategory{}
|
||||
for _, category := range a.categories {
|
||||
if visible := func() *CommandCategory {
|
||||
for _, command := range category.Commands {
|
||||
if !command.Hidden {
|
||||
return category
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}(); visible != nil {
|
||||
ret = append(ret, visible)
|
||||
}
|
||||
}
|
||||
return ret
|
||||
}
|
||||
|
||||
// VisibleCommands returns a slice of the Commands with Hidden=false
|
||||
func (a *App) VisibleCommands() []Command {
|
||||
ret := []Command{}
|
||||
for _, command := range a.Commands {
|
||||
if !command.Hidden {
|
||||
ret = append(ret, command)
|
||||
}
|
||||
}
|
||||
return ret
|
||||
}
|
||||
|
||||
// VisibleFlags returns a slice of the Flags with Hidden=false
|
||||
func (a *App) VisibleFlags() []Flag {
|
||||
return visibleFlags(a.Flags)
|
||||
}
|
||||
|
||||
func (a *App) hasFlag(flag Flag) bool {
|
||||
for _, f := range a.Flags {
|
||||
if flag == f {
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
func (a *App) errWriter() io.Writer {
|
||||
|
||||
// When the app ErrWriter is nil use the package level one.
|
||||
if a.ErrWriter == nil {
|
||||
return ErrWriter
|
||||
}
|
||||
|
||||
return a.ErrWriter
|
||||
}
|
||||
|
||||
func (a *App) appendFlag(flag Flag) {
|
||||
if !a.hasFlag(flag) {
|
||||
a.Flags = append(a.Flags, flag)
|
||||
}
|
||||
}
|
||||
|
||||
// Author represents someone who has contributed to a cli project.
|
||||
type Author struct {
|
||||
Name string // The Authors name
|
||||
Email string // The Authors email
|
||||
}
|
||||
|
||||
// String makes Author comply to the Stringer interface, to allow an easy print in the templating process
|
||||
func (a Author) String() string {
|
||||
e := ""
|
||||
if a.Email != "" {
|
||||
e = " <" + a.Email + ">"
|
||||
}
|
||||
|
||||
return fmt.Sprintf("%v%v", a.Name, e)
|
||||
}
|
||||
|
||||
// HandleAction attempts to figure out which Action signature was used. If
|
||||
// it's an ActionFunc or a func with the legacy signature for Action, the func
|
||||
// is run!
|
||||
func HandleAction(action interface{}, context *Context) (err error) {
|
||||
if a, ok := action.(ActionFunc); ok {
|
||||
return a(context)
|
||||
} else if a, ok := action.(func(*Context) error); ok {
|
||||
return a(context)
|
||||
} else if a, ok := action.(func(*Context)); ok { // deprecated function signature
|
||||
a(context)
|
||||
return nil
|
||||
} else {
|
||||
return errInvalidActionType
|
||||
}
|
||||
}
|
||||
-1685
File diff suppressed because it is too large
Load Diff
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user