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plugin-drone-volume-cache/DOCS.md
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Use the Volume-cache plugin to preserve files and directories between builds.
Because it uses a mounted volume, it requires repositories using it to enable the *"Trusted"* flag.
## Config
The following parameters are used to configure the plugin:
- **restore** - instruct plugin to restore cache, can be `true` or `false`
- **rebuild** - instruct plugin to rebuild cache, can be `true` or `false`
- **mount** - list of folders to cache
## Examples
```yaml
pipeline:
restore-cache:
image: drillster/drone-volume-cache
restore: true
mount:
- ./node_modules
# Mount the cache volume, needs "Trusted"
volumes:
- /tmp/cache:/cache
build:
image: node
commands:
- npm install
rebuild-cache:
image: drillster/drone-volume-cache
rebuild: true
mount:
- ./node_modules
# Mount the cache volume, needs "Trusted"
volumes:
- /tmp/cache:/cache
```
The example above illustrates a typical Node.js project Drone configuration. It caches the `./node_modules` directory to a mounted volume on the host system: `/tmp/cache`. This prevents `npm` from downloading and installing the dependencies for every build.
## Clearing Cache
Should you want to clear the cache for a project, you can do so by including `[CLEAR CACHE]` in the commit message. The entire cache folder for the project will be cleared before it is restored. The rebuilding of cache will proceed as normal.
## Skipping Cache
If you want to run a build without using cache, put `[NO CACHE]` in the commit message. Both the restoring and rebuilding of cache will be skipped. Your cache will remain intact.