mirror of
https://github.com/actions/cache.git
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0da99ad140
* Create CODE_OF_CONDUCT.md * Update workflow (#1) * Run workflow on linux, mac, and windows * Add status badge * Use npm install instead * Bump typescript version * Use node 12.x * Add Ruby Gem example (#4) * Add Cocoapods example (#5) * Add Carthage example (#10) * Move examples to their own page (#13) * Minor typo in README (#15) from `steps.[ID].outupts.cache-hit` to `steps.[ID].outputs.cache-hit` * Update README.md * Prevent commands from executing during tests (#21) * Prevent commands from executing during tests * Add newline at end of file * Drop all commands from output * Link to NuGet lock files documentation (#20) * Add trailing dash to Maven fallback key (#19) * Fix README.md (#25) `restore-keys` had incorrect indentation. * Exclude documentation from CI tests (#28) * Ignore all .md files * Add note about time-based eviction to README (#30) * Fix typo in error message (#29) * Time based eviction interval is 1 week (#34) * Remove cache checksum debug - close #24 (#26) * Remove cache checksum debug - close #24 * Remove cache checksum debug on save * Fix formatting * Add Go modules example (#18) * Add Go modules example * Fix TOC * Fix repo name in contact email (#41) * Add Elixir Mix example (#42) * Add Elixir Mix example * Fix typo * Add cargo example for Rust project (#8) * Add cargo example * Add hash of Cargo.lock to keys of caches * Move Rust example to examples.md * Stop warning when cache is not found (#40) The cache not being found is a common situation so very visible warning is a little too much. * Bump package version * Release v0.0.2
90 lines
2.7 KiB
Markdown
90 lines
2.7 KiB
Markdown
# cache
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This GitHub Action allows caching dependencies and build outputs to improve workflow execution time.
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<a href="https://github.com/actions/cache"><img alt="GitHub Actions status" src="https://github.com/actions/cache/workflows/Tests/badge.svg"></a>
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## Usage
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### Pre-requisites
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Create a workflow `.yml` file in your repositories `.github/workflows` directory. An [example workflow](#example-workflow) is available below. For more information, reference the GitHub Help Documentation for [Creating a workflow file](https://help.github.com/en/articles/configuring-a-workflow#creating-a-workflow-file).
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### Inputs
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* `path` - A directory to store and save the cache
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* `key` - An explicit key for restoring and saving the cache
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* `restore-keys` - An ordered list of keys to use for restoring the cache if no cache hit occurred for key
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### Outputs
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* `cache-hit` - A boolean value to indicate an exact match was found for the key
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> See [Skipping steps based on cache-hit](#Skipping-steps-based-on-cache-hit) for info on using this output
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### Example workflow
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```yaml
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name: Example Caching with npm
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on: push
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jobs:
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build:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v1
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- name: Cache node modules
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uses: actions/cache@preview
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with:
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path: node_modules
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key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
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restore-keys: |
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${{ runner.os }}-node-
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- name: Install Dependencies
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run: npm install
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- name: Build
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run: npm run build
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- name: Test
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run: npm run test
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```
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## Ecosystem Examples
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See [Examples](examples.md)
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## Cache Limits
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Individual caches are limited to 200MB and a repository can have up to 2GB of caches. Once the 2GB limit is reached, older caches will be evicted based on when the cache was last accessed. Caches that are not accessed within the last week will also be evicted.
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## Skipping steps based on cache-hit
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Using the `cache-hit` output, subsequent steps (such as install or build) can be skipped when a cache hit occurs on the key.
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Example:
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```yaml
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steps:
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- uses: actions/checkout@v1
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- uses: actions/cache@preview
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id: cache
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with:
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path: path/to/dependencies
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key: ${{ runner.os }}-${{ hashFiles('**/lockfiles')}}
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- name: Install Dependencies
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if: steps.cache.outputs.cache-hit != 'true'
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run: /install.sh
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```
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> Note: The `id` defined in `actions/cache` must match the `id` in the `if` statement (i.e. `steps.[ID].outputs.cache-hit`)
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## Contributing
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We would love for you to contribute to `@actions/cache`, pull requests are welcome! Please see the [CONTRIBUTING.md](CONTRIBUTING.md) for more information.
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## License
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The scripts and documentation in this project are released under the [MIT License](LICENSE)
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