fix(envs): 🐛 set environment variable instead of bash variable (#219)

Signed-off-by: Bo-Yi.Wu <appleboy.tw@gmail.com>

.github/workflows/binary.yml

@@ -0,0 +1,24 @@
+name: Release Binary
+
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - 'v*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container: techknowlogick/xgo:go-1.19.x
+    steps:
+
+      - name: Checkout repository
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      # - name: Release binary
+      #   run: |
+      #     ls -al
+      #     make release

.github/workflows/build.yml

@@ -1,138 +0,0 @@
-name: Release Binary
-
-on:
-  push:
-    branches:
-      - master
-    tags:
-      - 'v*'
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Setup go
-        uses: actions/setup-go@v3
-        with:
-          go-version: '^1'
-      - name: Checkout repository
-        uses: actions/checkout@v3
-        with:
-          fetch-depth: 0
-
-      - name: Build binary
-        run : |
-          make build_linux_amd64
-          make build_linux_arm64
-          make build_linux_arm
-
-      - name: Check binary
-        run : |
-          ./release/linux/amd64/drone-ssh --help
-
-      -
-        name: Set up QEMU
-        uses: docker/setup-qemu-action@v2
-      -
-        name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
-
-      -
-        name: Login to Docker Hub
-        uses: docker/login-action@v2
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-
-      -
-        name: Login to GitHub Container Registry
-        uses: docker/login-action@v2
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      -
-        name: Docker meta for linux amd64
-        id: meta-linux-amd64
-        uses: docker/metadata-action@v4
-        with:
-          flavor: |
-            latest=false
-            suffix=linux-amd64
-          images: |
-            appleboy/drone-ssh
-            ghcr.io/appleboy/drone-ssh
-          tags: |
-            type=raw,value=,enable={{is_default_branch}}
-            type=raw,value=latest,suffix=,enable={{is_default_branch}}
-            type=semver,event=tag,pattern={{version}},suffix=-linux-amd64
-            type=semver,event=tag,pattern={{major}}.{{minor}},suffix=-linux-amd64
-            type=semver,event=tag,pattern={{major}},suffix=-linux-amd64
-
-      -
-        name: Build and push linux amd64
-        uses: docker/build-push-action@v3
-        with:
-          context: .
-          file: docker/Dockerfile.linux.amd64
-          platforms: linux/amd64
-          push: true
-          tags: ${{ steps.meta-linux-amd64.outputs.tags }}
-          labels: ${{ steps.meta-linux-amd64.outputs.labels }}
-
-      -
-        name: Docker meta for linux arm64
-        id: meta-linux-arm64
-        uses: docker/metadata-action@v4
-        with:
-          flavor: |
-            latest=false
-            suffix=linux-arm64
-          images: |
-            appleboy/drone-ssh
-            ghcr.io/appleboy/drone-ssh
-          tags: |
-            type=raw,value=,enable={{is_default_branch}}
-            type=semver,event=tag,pattern={{version}},suffix=-linux-arm64
-            type=semver,event=tag,pattern={{major}}.{{minor}},suffix=-linux-arm64
-            type=semver,event=tag,pattern={{major}},suffix=-linux-arm64
-
-      -
-        name: Build and push linux arm64
-        uses: docker/build-push-action@v3
-        with:
-          context: .
-          file: docker/Dockerfile.linux.arm64
-          platforms: linux/arm64
-          push: true
-          tags: ${{ steps.meta-linux-arm64.outputs.tags }}
-          labels: ${{ steps.meta-linux-arm64.outputs.labels }}
-
-      -
-        name: Docker meta for linux arm
-        id: meta-linux-arm
-        uses: docker/metadata-action@v4
-        with:
-          flavor: |
-            latest=false
-            suffix=linux-arm
-          images: |
-            appleboy/drone-ssh
-            ghcr.io/appleboy/drone-ssh
-          tags: |
-            type=raw,value=,enable={{is_default_branch}}
-            type=semver,event=tag,pattern={{version}},suffix=-linux-arm
-            type=semver,event=tag,pattern={{major}}.{{minor}},suffix=-linux-arm
-            type=semver,event=tag,pattern={{major}},suffix=-linux-arm
-
-      -
-        name: Build and push linux arm
-        uses: docker/build-push-action@v3
-        with:
-          context: .
-          file: docker/Dockerfile.linux.arm
-          platforms: linux/arm
-          push: true
-          tags: ${{ steps.meta-linux-arm.outputs.tags }}
-          labels: ${{ steps.meta-linux-arm.outputs.labels }}

.github/workflows/docker.yml

@@ -0,0 +1,94 @@
+name: Docker Image
+
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - 'v*'
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      max-parallel: 3
+      matrix:
+        os: [ubuntu-latest]
+        system: [linux]
+        arch: [amd64, arm, arm64]
+        # support windows build and push?
+        # see the issue: https://github.com/docker/build-push-action/issues/18
+        # include:
+        #   - os: windows-2022
+        #     system: windows
+        #     arch: amd64
+    steps:
+      - name: Setup go
+        uses: actions/setup-go@v3
+        with:
+          go-version: '^1'
+      - name: Checkout repository
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Build binary
+        run : |
+          make build_${{ matrix.system }}_${{ matrix.arch }}
+
+      - name: Check binary
+        if: matrix.system == 'linux' && matrix.arch == 'amd64'
+        run : |
+          ./release/${{ matrix.system }}/${{ matrix.arch }}/${GITHUB_REPOSITORY#*/} --help
+
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      -
+        name: Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      -
+        name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      -
+        name: Docker meta for ${{ matrix.system }} ${{ matrix.arch }}
+        id: docker-meta
+        uses: docker/metadata-action@v4
+        with:
+          flavor: |
+            latest=false
+            suffix=${{ matrix.system }}-${{ matrix.arch }}
+          images: |
+            ${{ github.repository }}
+            ghcr.io/${{ github.repository }}
+          tags: |
+            type=raw,value=,enable={{is_default_branch}}
+            type=raw,value=latest,suffix=,enable=${{ matrix.system == 'linux' && matrix.arch == 'amd64' }}
+            type=semver,event=tag,pattern={{version}},suffix=-${{ matrix.system }}-${{ matrix.arch }}
+            type=semver,event=tag,pattern={{major}}.{{minor}},suffix=-${{ matrix.system }}-${{ matrix.arch }}
+            type=semver,event=tag,pattern={{major}},suffix=-${{ matrix.system }}-${{ matrix.arch }}
+
+      -
+        name: Build and push ${{ matrix.system }} ${{ matrix.arch }}
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          file: docker/Dockerfile.${{ matrix.system }}.${{ matrix.arch }}
+          platforms: ${{ matrix.system }}/${{ matrix.arch }}
+          push: true
+          tags: ${{ steps.docker-meta.outputs.tags }}
+          labels: ${{ steps.docker-meta.outputs.labels }}

.github/workflows/lint.yml

@@ -1,12 +1,8 @@
-name: Run Lint
+name: Lint and Testing
 
 on:
   push:
-    branches:
-      - master
   pull_request:
-    branches:
-      - master
 
 jobs:
   lint:
@@ -23,3 +19,35 @@ jobs:
         with:
           version: latest
           args: --verbose
+
+      - uses: hadolint/hadolint-action@v3.0.0
+        name: hadolint for Dockerfile.linux.amd64
+        with:
+          dockerfile: docker/Dockerfile.linux.amd64
+      - uses: hadolint/hadolint-action@v3.0.0
+        name: hadolint for Dockerfile.linux.arm64
+        with:
+          dockerfile: docker/Dockerfile.linux.arm64
+      - uses: hadolint/hadolint-action@v3.0.0
+        name: hadolint for Dockerfile.linux.arm
+        with:
+          dockerfile: docker/Dockerfile.linux.arm
+
+  testing:
+    runs-on: ubuntu-latest
+    container: golang:1.19-alpine
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: setup sshd server
+        run: |
+          apk add git make curl perl bash build-base zlib-dev ucl-dev
+          make ssh-server
+
+      - name: testing
+        run: |
+          make test
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v3

.hadolint.yaml

@@ -0,0 +1,2 @@
+ignored:
+  - DL3018

Makefile

@@ -1,18 +1,19 @@
 DIST := dist
 EXECUTABLE := drone-ssh
-GOFMT ?= gofumpt -l -s
+GOFMT ?= gofumpt -l
 DIST := dist
 DIST_DIRS := $(DIST)/binaries $(DIST)/release
 GO ?= go
 SHASUM ?= shasum -a 256
+GOFILES := $(shell find . -name "*.go" -type f)
 HAS_GO = $(shell hash $(GO) > /dev/null 2>&1 && echo "GO" || echo "NOGO" )
 XGO_PACKAGE ?= src.techknowlogick.com/xgo@latest
-XGO_VERSION := go-1.18.x
-GXZ_PAGAGE ?= github.com/ulikunitz/xz/cmd/gxz@v0.5.10
+XGO_VERSION := go-1.19.x
+GXZ_PAGAGE ?= github.com/ulikunitz/xz/cmd/gxz@v0.5.11
 
 LINUX_ARCHS ?= linux/amd64,linux/arm64
-DARWIN_ARCHS ?= darwin-12/amd64,darwin-12/arm64
-WINDOWS_ARCHS ?= windows/amd64
+DARWIN_ARCHS ?= darwin-10.12/amd64,darwin-10.12/arm64
+WINDOWS_ARCHS ?= windows/*
 
 ifneq ($(shell uname), Darwin)
 	EXTLDFLAGS = -extldflags "-static" $(null)
@@ -52,9 +53,9 @@ all: build
 
 fmt:
 	@hash gofumpt > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
-		$(GO) get -u mvdan.cc/gofumpt; \
+		$(GO) install mvdan.cc/gofumpt; \
 	fi
-	$(GOFMT) -w $(SOURCES)
+	$(GOFMT) -w $(GOFILES)
 
 vet:
 	$(GO) vet ./...
@@ -62,24 +63,24 @@ vet:
 .PHONY: fmt-check
 fmt-check:
 	@hash gofumpt > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
-		$(GO) get -u mvdan.cc/gofumpt; \
+		$(GO) install mvdan.cc/gofumpt; \
 	fi
-	@diff=$$($(GOFMT) -d $(SOURCES)); \
+	@diff=$$($(GOFMT) -d $(GOFILES)); \
 	if [ -n "$$diff" ]; then \
 		echo "Please run 'make fmt' and commit the result:"; \
 		echo "$${diff}"; \
 		exit 1; \
 	fi;
 
-test: fmt-check
+test:
 	@$(GO) test -v -cover -coverprofile coverage.txt ./... && echo "\n==>\033[32m Ok\033[m\n" || exit 1
 
-install: $(SOURCES)
+install: $(GOFILES)
 	$(GO) install -v -tags '$(TAGS)' -ldflags '$(EXTLDFLAGS)-s -w $(LDFLAGS)'
 
 build: $(EXECUTABLE)
 
-$(EXECUTABLE): $(SOURCES)
+$(EXECUTABLE): $(GOFILES)
 	$(GO) build -v -tags '$(TAGS)' -ldflags '$(EXTLDFLAGS)-s -w $(LDFLAGS)' -o $@
 
 build_linux_amd64:
@@ -119,7 +120,7 @@ deps-backend:
 	$(GO) install $(XGO_PACKAGE)
 
 .PHONY: release
-release: release-linux release-copy release-compress release-check
+release: release-linux release-darwin release-windows release-copy release-compress release-check
 
 $(DIST_DIRS):
 	mkdir -p $(DIST_DIRS)

README.md

@@ -4,11 +4,10 @@
 
 [![GitHub tag](https://img.shields.io/github/tag/appleboy/drone-ssh.svg)](https://github.com/appleboy/drone-ssh/releases)
 [![GoDoc](https://godoc.org/github.com/appleboy/drone-ssh?status.svg)](https://godoc.org/github.com/appleboy/drone-ssh)
-[![Build Status](https://cloud.drone.io/api/badges/appleboy/drone-ssh/status.svg)](https://cloud.drone.io/appleboy/drone-ssh)
+[![Lint and Testing](https://github.com/appleboy/drone-ssh/actions/workflows/lint.yml/badge.svg)](https://github.com/appleboy/drone-ssh/actions/workflows/lint.yml)
 [![codecov](https://codecov.io/gh/appleboy/drone-ssh/branch/master/graph/badge.svg)](https://codecov.io/gh/appleboy/drone-ssh)
 [![Go Report Card](https://goreportcard.com/badge/github.com/appleboy/drone-ssh)](https://goreportcard.com/report/github.com/appleboy/drone-ssh)
 [![Docker Pulls](https://img.shields.io/docker/pulls/appleboy/drone-ssh.svg)](https://hub.docker.com/r/appleboy/drone-ssh/)
-[![micro badger](https://images.microbadger.com/badges/image/appleboy/drone-ssh.svg)](https://microbadger.com/images/appleboy/drone-ssh "Get your own image badge on microbadger.com")
 
 Drone plugin to execute commands on a remote host through SSH. For the usage
 information and a listing of the available options please take a look at [the docs](http://plugins.drone.io/appleboy/drone-ssh/).

go.mod

@@ -6,7 +6,7 @@ require (
 	github.com/appleboy/easyssh-proxy v1.3.9
 	github.com/joho/godotenv v1.4.0
 	github.com/stretchr/testify v1.8.1
-	github.com/urfave/cli v1.22.10
+	github.com/urfave/cli/v2 v2.23.7
 	golang.org/x/crypto v0.4.0
 )
 
@@ -17,6 +17,7 @@ require (
 	github.com/dchest/bcrypt_pbkdf v0.0.0-20150205184540-83f37f9c154a // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
 	golang.org/x/sys v0.3.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,10 +1,8 @@
-github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/ScaleFT/sshkeys v0.0.0-20200327173127-6142f742bca5/go.mod h1:gxOHeajFfvGQh/fxlC8oOKBe23xnnJTif00IFFbiT+o=
 github.com/ScaleFT/sshkeys v1.2.0 h1:5BRp6rTVIhJzXT3VcUQrKgXR8zWA3sOsNeuyW15WUA8=
 github.com/ScaleFT/sshkeys v1.2.0/go.mod h1:gxOHeajFfvGQh/fxlC8oOKBe23xnnJTif00IFFbiT+o=
 github.com/appleboy/easyssh-proxy v1.3.9 h1:b+sVSTz+cVFvfA23HQywMMpm0s5g3gH7jYdBcQqaCQI=
 github.com/appleboy/easyssh-proxy v1.3.9/go.mod h1:G1eQomBEME7NWKA3hE49s5HsT44S5fn0aBxX7k9Yjug=
-github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/cpuguy83/go-md2man/v2 v2.0.2 h1:p1EgwI/C7NhT0JmVkwCD2ZBK8j4aeHQX2pMHHBfMQ6w=
 github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -16,10 +14,8 @@ github.com/joho/godotenv v1.4.0 h1:3l4+N6zfMWnkbPEXKng2o2/MR5mSwTrBih4ZEkkz1lg=
 github.com/joho/godotenv v1.4.0/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
-github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
@@ -29,8 +25,10 @@ github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
-github.com/urfave/cli v1.22.10 h1:p8Fspmz3iTctJstry1PYS3HVdllxnEzTEsgIgtxTrCk=
-github.com/urfave/cli v1.22.10/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
+github.com/urfave/cli/v2 v2.23.7 h1:YHDQ46s3VghFHFf1DdF+Sh7H4RqhcM+t0TmZRJx4oJY=
+github.com/urfave/cli/v2 v2.23.7/go.mod h1:GHupkWPMM0M/sj1a2b4wUrWBPzazNrIjouW6fmdJLxc=
+github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 h1:bAn7/zixMGCfxrRTfdpNzjtPYqr8smhKouy9mxVdGPU=
+github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673/go.mod h1:N3UwUGtsrSj3ccvlPHLoLsHnpR27oXr4ZE984MbSER8=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20200323165209-0ec3e9974c59/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20201208171446-5f87f3452ae9/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=

main.go

@@ -7,7 +7,8 @@ import (
 
 	"github.com/appleboy/easyssh-proxy"
 	"github.com/joho/godotenv"
-	"github.com/urfave/cli"
+	_ "github.com/joho/godotenv/autoload"
+	"github.com/urfave/cli/v2"
 )
 
 // Version set at compile-time
@@ -27,7 +28,7 @@ func main() {
 	app.Name = "Drone SSH"
 	app.Usage = "Executing remote ssh commands"
 	app.Copyright = "Copyright (c) 2019 Bo-Yi Wu"
-	app.Authors = []cli.Author{
+	app.Authors = []*cli.Author{
 		{
 			Name:  "Bo-Yi Wu",
 			Email: "appleboy.tw@gmail.com",
@@ -36,157 +37,165 @@ func main() {
 	app.Action = run
 	app.Version = Version
 	app.Flags = []cli.Flag{
-		cli.StringFlag{
-			Name:   "ssh-key",
-			Usage:  "private ssh key",
-			EnvVar: "PLUGIN_SSH_KEY,PLUGIN_KEY,SSH_KEY,KEY,INPUT_KEY",
+		&cli.StringFlag{
+			Name:    "ssh-key",
+			Usage:   "private ssh key",
+			EnvVars: []string{"PLUGIN_SSH_KEY", "PLUGIN_KEY", "SSH_KEY", "KEY", "INPUT_KEY"},
 		},
-		cli.StringFlag{
-			Name:   "ssh-passphrase",
-			Usage:  "The purpose of the passphrase is usually to encrypt the private key.",
-			EnvVar: "PLUGIN_SSH_PASSPHRASE,PLUGIN_PASSPHRASE,SSH_PASSPHRASE,PASSPHRASE,INPUT_PASSPHRASE",
+		&cli.StringFlag{
+			Name:    "ssh-passphrase",
+			Usage:   "The purpose of the passphrase is usually to encrypt the private key.",
+			EnvVars: []string{"PLUGIN_SSH_PASSPHRASE", "PLUGIN_PASSPHRASE", "SSH_PASSPHRASE", "PASSPHRASE", "INPUT_PASSPHRASE"},
 		},
-		cli.StringFlag{
-			Name:   "key-path,i",
-			Usage:  "ssh private key path",
-			EnvVar: "PLUGIN_KEY_PATH,SSH_KEY_PATH,INPUT_KEY_PATH",
+		&cli.StringFlag{
+			Name:    "key-path",
+			Aliases: []string{"i"},
+			Usage:   "ssh private key path",
+			EnvVars: []string{"PLUGIN_KEY_PATH", "SSH_KEY_PATH", "INPUT_KEY_PATH"},
 		},
-		cli.StringFlag{
-			Name:   "username,user,u",
-			Usage:  "connect as user",
-			EnvVar: "PLUGIN_USERNAME,PLUGIN_USER,SSH_USERNAME,USERNAME,INPUT_USERNAME",
-			Value:  "root",
+		&cli.StringFlag{
+			Name:    "username",
+			Aliases: []string{"user", "u"},
+			Usage:   "connect as user",
+			EnvVars: []string{"PLUGIN_USERNAME", "PLUGIN_USER", "SSH_USERNAME", "USERNAME", "INPUT_USERNAME"},
+			Value:   "root",
 		},
-		cli.StringFlag{
-			Name:   "password,P",
-			Usage:  "user password",
-			EnvVar: "PLUGIN_PASSWORD,SSH_PASSWORD,PASSWORD,INPUT_PASSWORD",
+		&cli.StringFlag{
+			Name:    "password",
+			Aliases: []string{"P"},
+			Usage:   "user password",
+			EnvVars: []string{"PLUGIN_PASSWORD", "SSH_PASSWORD", "PASSWORD", "INPUT_PASSWORD"},
 		},
-		cli.StringSliceFlag{
-			Name:   "ciphers",
-			Usage:  "The allowed cipher algorithms. If unspecified then a sensible",
-			EnvVar: "PLUGIN_CIPHERS,SSH_CIPHERS,CIPHERS,INPUT_CIPHERS",
+		&cli.StringSliceFlag{
+			Name:    "ciphers",
+			Usage:   "The allowed cipher algorithms. If unspecified then a sensible",
+			EnvVars: []string{"PLUGIN_CIPHERS", "SSH_CIPHERS", "CIPHERS", "INPUT_CIPHERS"},
 		},
-		cli.BoolFlag{
-			Name:   "useInsecureCipher",
-			Usage:  "include more ciphers with use_insecure_cipher",
-			EnvVar: "PLUGIN_USE_INSECURE_CIPHER,SSH_USE_INSECURE_CIPHER,USE_INSECURE_CIPHER,INPUT_USE_INSECURE_CIPHER",
+		&cli.BoolFlag{
+			Name:    "useInsecureCipher",
+			Usage:   "include more ciphers with use_insecure_cipher",
+			EnvVars: []string{"PLUGIN_USE_INSECURE_CIPHER", "SSH_USE_INSECURE_CIPHER", "USE_INSECURE_CIPHER", "INPUT_USE_INSECURE_CIPHER"},
 		},
-		cli.StringFlag{
-			Name:   "fingerprint",
-			Usage:  "fingerprint SHA256 of the host public key, default is to skip verification",
-			EnvVar: "PLUGIN_FINGERPRINT,SSH_FINGERPRINT,FINGERPRINT,INPUT_FINGERPRINT",
+		&cli.StringFlag{
+			Name:    "fingerprint",
+			Usage:   "fingerprint SHA256 of the host public key, default is to skip verification",
+			EnvVars: []string{"PLUGIN_FINGERPRINT", "SSH_FINGERPRINT", "FINGERPRINT", "INPUT_FINGERPRINT"},
 		},
-		cli.StringSliceFlag{
-			Name:     "host,H",
+		&cli.StringSliceFlag{
+			Name:     "host",
+			Aliases:  []string{"H"},
 			Usage:    "connect to host",
-			EnvVar:   "PLUGIN_HOST,SSH_HOST,HOST,INPUT_HOST",
+			EnvVars:  []string{"PLUGIN_HOST", "SSH_HOST", "HOST", "INPUT_HOST"},
 			FilePath: ".host",
 		},
-		cli.IntFlag{
-			Name:   "port,p",
-			Usage:  "connect to port",
-			EnvVar: "PLUGIN_PORT,SSH_PORT,PORT,INPUT_PORT",
-			Value:  22,
+		&cli.IntFlag{
+			Name:    "port",
+			Aliases: []string{"p"},
+			Usage:   "connect to port",
+			EnvVars: []string{"PLUGIN_PORT", "SSH_PORT", "PORT", "INPUT_PORT"},
+			Value:   22,
 		},
-		cli.BoolFlag{
-			Name:   "sync",
-			Usage:  "sync mode",
-			EnvVar: "PLUGIN_SYNC,SYNC,INPUT_SYNC",
+		&cli.BoolFlag{
+			Name:    "sync",
+			Usage:   "sync mode",
+			EnvVars: []string{"PLUGIN_SYNC", "SYNC", "INPUT_SYNC"},
 		},
-		cli.DurationFlag{
-			Name:   "timeout,t",
-			Usage:  "connection timeout",
-			EnvVar: "PLUGIN_TIMEOUT,SSH_TIMEOUT,TIMEOUT,INPUT_TIMEOUT",
-			Value:  30 * time.Second,
+		&cli.DurationFlag{
+			Name:    "timeout",
+			Aliases: []string{"t"},
+			Usage:   "connection timeout",
+			EnvVars: []string{"PLUGIN_TIMEOUT", "SSH_TIMEOUT", "TIMEOUT", "INPUT_TIMEOUT"},
+			Value:   30 * time.Second,
 		},
-		cli.DurationFlag{
-			Name:   "command.timeout,T",
-			Usage:  "command timeout",
-			EnvVar: "PLUGIN_COMMAND_TIMEOUT,SSH_COMMAND_TIMEOUT,COMMAND_TIMEOUT,INPUT_COMMAND_TIMEOUT",
-			Value:  10 * time.Minute,
+		&cli.DurationFlag{
+			Name:    "command.timeout",
+			Aliases: []string{"T"},
+			Usage:   "command timeout",
+			EnvVars: []string{"PLUGIN_COMMAND_TIMEOUT", "SSH_COMMAND_TIMEOUT", "COMMAND_TIMEOUT", "INPUT_COMMAND_TIMEOUT"},
+			Value:   10 * time.Minute,
 		},
-		cli.StringSliceFlag{
-			Name:   "script,s",
-			Usage:  "execute commands",
-			EnvVar: "PLUGIN_SCRIPT,SSH_SCRIPT,SCRIPT",
+		&cli.StringSliceFlag{
+			Name:    "script",
+			Aliases: []string{"s"},
+			Usage:   "execute commands",
+			EnvVars: []string{"PLUGIN_SCRIPT", "SSH_SCRIPT", "SCRIPT"},
 		},
-		cli.StringFlag{
-			Name:   "script.string",
-			Usage:  "execute single commands for github action",
-			EnvVar: "INPUT_SCRIPT",
+		&cli.StringFlag{
+			Name:    "script.string",
+			Usage:   "execute single commands for github action",
+			EnvVars: []string{"INPUT_SCRIPT"},
 		},
-		cli.BoolFlag{
-			Name:   "script.stop",
-			Usage:  "stop script after first failure",
-			EnvVar: "PLUGIN_SCRIPT_STOP,STOP,INPUT_SCRIPT_STOP",
+		&cli.BoolFlag{
+			Name:    "script.stop",
+			Usage:   "stop script after first failure",
+			EnvVars: []string{"PLUGIN_SCRIPT_STOP", "STOP", "INPUT_SCRIPT_STOP"},
 		},
-		cli.StringFlag{
-			Name:   "proxy.ssh-key",
-			Usage:  "private ssh key of proxy",
-			EnvVar: "PLUGIN_PROXY_SSH_KEY,PLUGIN_PROXY_KEY,PROXY_SSH_KEY,INPUT_PROXY_KEY",
+		&cli.StringFlag{
+			Name:    "proxy.ssh-key",
+			Usage:   "private ssh key of proxy",
+			EnvVars: []string{"PLUGIN_PROXY_SSH_KEY", "PLUGIN_PROXY_KEY", "PROXY_SSH_KEY", "INPUT_PROXY_KEY"},
 		},
-		cli.StringFlag{
-			Name:   "proxy.ssh-passphrase",
-			Usage:  "The purpose of the passphrase is usually to encrypt the private key.",
-			EnvVar: "PLUGIN_PROXY_SSH_PASSPHRASE,PLUGIN_PROXY_PASSPHRASE,PROXY_SSH_PASSPHRASE,PROXY_PASSPHRASE,INPUT_PROXY_PASSPHRASE",
+		&cli.StringFlag{
+			Name:    "proxy.ssh-passphrase",
+			Usage:   "The purpose of the passphrase is usually to encrypt the private key.",
+			EnvVars: []string{"PLUGIN_PROXY_SSH_PASSPHRASE", "PLUGIN_PROXY_PASSPHRASE", "PROXY_SSH_PASSPHRASE", "PROXY_PASSPHRASE", "INPUT_PROXY_PASSPHRASE"},
 		},
-		cli.StringFlag{
-			Name:   "proxy.key-path",
-			Usage:  "ssh private key path of proxy",
-			EnvVar: "PLUGIN_PROXY_KEY_PATH,PROXY_SSH_KEY_PATH,INPUT_PROXY_KEY_PATH",
+		&cli.StringFlag{
+			Name:    "proxy.key-path",
+			Usage:   "ssh private key path of proxy",
+			EnvVars: []string{"PLUGIN_PROXY_KEY_PATH", "PROXY_SSH_KEY_PATH", "INPUT_PROXY_KEY_PATH"},
 		},
-		cli.StringFlag{
-			Name:   "proxy.username",
-			Usage:  "connect as user of proxy",
-			EnvVar: "PLUGIN_PROXY_USERNAME,PLUGIN_PROXY_USER,PROXY_SSH_USERNAME,INPUT_PROXY_USERNAME",
-			Value:  "root",
+		&cli.StringFlag{
+			Name:    "proxy.username",
+			Usage:   "connect as user of proxy",
+			EnvVars: []string{"PLUGIN_PROXY_USERNAME", "PLUGIN_PROXY_USER", "PROXY_SSH_USERNAME", "INPUT_PROXY_USERNAME"},
+			Value:   "root",
 		},
-		cli.StringFlag{
-			Name:   "proxy.password",
-			Usage:  "user password of proxy",
-			EnvVar: "PLUGIN_PROXY_PASSWORD,PROXY_SSH_PASSWORD,INPUT_PROXY_PASSWORD",
+		&cli.StringFlag{
+			Name:    "proxy.password",
+			Usage:   "user password of proxy",
+			EnvVars: []string{"PLUGIN_PROXY_PASSWORD", "PROXY_SSH_PASSWORD", "INPUT_PROXY_PASSWORD"},
 		},
-		cli.StringFlag{
-			Name:   "proxy.host",
-			Usage:  "connect to host of proxy",
-			EnvVar: "PLUGIN_PROXY_HOST,PROXY_SSH_HOST,INPUT_PROXY_HOST",
+		&cli.StringFlag{
+			Name:    "proxy.host",
+			Usage:   "connect to host of proxy",
+			EnvVars: []string{"PLUGIN_PROXY_HOST", "PROXY_SSH_HOST", "INPUT_PROXY_HOST"},
 		},
-		cli.StringFlag{
-			Name:   "proxy.port",
-			Usage:  "connect to port of proxy",
-			EnvVar: "PLUGIN_PROXY_PORT,PROXY_SSH_PORT,INPUT_PROXY_PORT",
-			Value:  "22",
+		&cli.StringFlag{
+			Name:    "proxy.port",
+			Usage:   "connect to port of proxy",
+			EnvVars: []string{"PLUGIN_PROXY_PORT", "PROXY_SSH_PORT", "INPUT_PROXY_PORT"},
+			Value:   "22",
 		},
-		cli.DurationFlag{
-			Name:   "proxy.timeout",
-			Usage:  "proxy connection timeout",
-			EnvVar: "PLUGIN_PROXY_TIMEOUT,PROXY_SSH_TIMEOUT,INPUT_PROXY_TIMEOUT",
+		&cli.DurationFlag{
+			Name:    "proxy.timeout",
+			Usage:   "proxy connection timeout",
+			EnvVars: []string{"PLUGIN_PROXY_TIMEOUT", "PROXY_SSH_TIMEOUT", "INPUT_PROXY_TIMEOUT"},
 		},
-		cli.StringSliceFlag{
-			Name:   "proxy.ciphers",
-			Usage:  "The allowed cipher algorithms. If unspecified then a sensible",
-			EnvVar: "PLUGIN_PROXY_CIPHERS,SSH_PROXY_CIPHERS,PROXY_CIPHERS,INPUT_PROXY_CIPHERS",
+		&cli.StringSliceFlag{
+			Name:    "proxy.ciphers",
+			Usage:   "The allowed cipher algorithms. If unspecified then a sensible",
+			EnvVars: []string{"PLUGIN_PROXY_CIPHERS", "SSH_PROXY_CIPHERS", "PROXY_CIPHERS", "INPUT_PROXY_CIPHERS"},
 		},
-		cli.BoolFlag{
-			Name:   "proxy.useInsecureCipher",
-			Usage:  "include more ciphers with use_insecure_cipher",
-			EnvVar: "PLUGIN_PROXY_USE_INSECURE_CIPHER,SSH_PROXY_USE_INSECURE_CIPHER,PROXY_USE_INSECURE_CIPHER,INPUT_PROXY_USE_INSECURE_CIPHER",
+		&cli.BoolFlag{
+			Name:    "proxy.useInsecureCipher",
+			Usage:   "include more ciphers with use_insecure_cipher",
+			EnvVars: []string{"PLUGIN_PROXY_USE_INSECURE_CIPHER", "SSH_PROXY_USE_INSECURE_CIPHER", "PROXY_USE_INSECURE_CIPHER", "INPUT_PROXY_USE_INSECURE_CIPHER"},
 		},
-		cli.StringFlag{
-			Name:   "proxy.fingerprint",
-			Usage:  "fingerprint SHA256 of the host public key, default is to skip verification",
-			EnvVar: "PLUGIN_PROXY_FINGERPRINT,SSH_PROXY_FINGERPRINT,PROXY_FINGERPRINT,INPUT_PROXY_FINGERPRINT",
+		&cli.StringFlag{
+			Name:    "proxy.fingerprint",
+			Usage:   "fingerprint SHA256 of the host public key, default is to skip verification",
+			EnvVars: []string{"PLUGIN_PROXY_FINGERPRINT", "SSH_PROXY_FINGERPRINT", "PROXY_FINGERPRINT", "INPUT_PROXY_FINGERPRINT"},
 		},
-		cli.StringSliceFlag{
-			Name:   "envs",
-			Usage:  "pass environment variable to shell script",
-			EnvVar: "PLUGIN_ENVS,INPUT_ENVS",
+		&cli.StringSliceFlag{
+			Name:    "envs",
+			Usage:   "pass environment variable to shell script",
+			EnvVars: []string{"PLUGIN_ENVS", "INPUT_ENVS"},
 		},
-		cli.BoolFlag{
-			Name:   "debug",
-			Usage:  "debug mode",
-			EnvVar: "PLUGIN_DEBUG,DEBUG,INPUT_DEBUG",
+		&cli.BoolFlag{
+			Name:    "debug",
+			Usage:   "debug mode",
+			EnvVars: []string{"PLUGIN_DEBUG", "DEBUG", "INPUT_DEBUG"},
 		},
 	}
 

plugin.go

@@ -103,7 +103,7 @@ func (p Plugin) exec(host string, wg *sync.WaitGroup, errChannel chan error) {
 	for _, key := range p.Config.Envs {
 		key = strings.ToUpper(key)
 		if val, found := os.LookupEnv(key); found {
-			env = append(env, key+"="+escapeArg(val))
+			env = append(env, "export "+key+"="+escapeArg(val))
 		}
 	}
 

plugin_test.go

@@ -539,13 +539,13 @@ func TestEnvOutput(t *testing.T) {
 			echo "[${ENV_7}]"
 			======END======
 			======ENV======
-			ENV_1='test'
-			ENV_2='test test'
-			ENV_3='test '
-			ENV_4='  test  test  '
-			ENV_5='test'\'''
-			ENV_6='test"'
-			ENV_7='test,!#;?.@$~'\''"'
+			export ENV_1='test'
+			export ENV_2='test test'
+			export ENV_3='test '
+			export ENV_4='  test  test  '
+			export ENV_5='test'\'''
+			export ENV_6='test"'
+			export ENV_7='test,!#;?.@$~'\''"'
 			======END======
 			out: [test]
 			out: [test test]