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# cache
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This action allows caching dependencies and build outputs to improve workflow execution time.
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GA for granular cache (#1035) * Add example for Haskell Stack * Revert "Add example for Haskell Stack" * Basic implementation * Updated variable name * Adding wrapper class * Changed logs to warnings * added debug logs * experimenting * Test * test * new try * test * Impl separated * Reverted wrapper changes * Added test cases * Some cleanup * Formatted document * Fixed test cases issues * Slight modification for test cases check * Updated new actions' input descriptions * Reverted custom asks implemented and added wrapper * refactor into a generic outputter * Readme draft for new actions * Generated dist * Fixed breaking test case * Removed return type in promise * Removed commented lines * Calling methods from same file * dist * update save as well * fix merge * Changes for beta release * Update dist folder * Fixed formatting * dist * Add support for gzip fallback for restore of old cache on windows * Fixed test cases * Fixed test cases * Added restore only and save only test cases * Updated new actions dist files * Removed comments * Fixed inputs * Renamed variables and added tests * Fixed breaking test case * Fixed review comments and tests * added stateprovider changes * Deleted stateprovider tests until added * Added stateprovider test cases * Fixed breaking test case * Updated outputs of restore action * Changes for beta release * Update dist folder * Add support for gzip fallback for restore of old cache on windows * update for new beta release * Update save/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Added more assertions as values can't be checked * Removed unused code * Merged beta branch and resolved conflicts * Added save readme * Updates to save readme * Renamed output * Added cache hit info in readme * Update restore/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update save/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update save/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Removed verbose statements * Repositioned new actions introduction * Added test case for restore state * Addressed review comments * nit * nit: added language to code blocks * Updated beta version to 3.2.0-beta.1 * Added stateprovider mock implementations * Linting errors fixed * Save-only warning added * Updated return ID to -2 * Removed -2 error code * Removed comment * Updated cache npm lib version * Updated license version * Updated releases.md * Updated readme with the new actions in what's new Co-authored-by: Malo Bourgon <mbourgon@gmail.com> Co-authored-by: Vipul <vsvipul@github.com> Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> Co-authored-by: Tanuj Kumar Mishra <tanuj077@users.noreply.github.com> Co-authored-by: Sampark Sharma <phantsure@github.com>
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In addition to this `cache` action, other two actions are also available
GA for granular cache (#1035) * Add example for Haskell Stack * Revert "Add example for Haskell Stack" * Basic implementation * Updated variable name * Adding wrapper class * Changed logs to warnings * added debug logs * experimenting * Test * test * new try * test * Impl separated * Reverted wrapper changes * Added test cases * Some cleanup * Formatted document * Fixed test cases issues * Slight modification for test cases check * Updated new actions' input descriptions * Reverted custom asks implemented and added wrapper * refactor into a generic outputter * Readme draft for new actions * Generated dist * Fixed breaking test case * Removed return type in promise * Removed commented lines * Calling methods from same file * dist * update save as well * fix merge * Changes for beta release * Update dist folder * Fixed formatting * dist * Add support for gzip fallback for restore of old cache on windows * Fixed test cases * Fixed test cases * Added restore only and save only test cases * Updated new actions dist files * Removed comments * Fixed inputs * Renamed variables and added tests * Fixed breaking test case * Fixed review comments and tests * added stateprovider changes * Deleted stateprovider tests until added * Added stateprovider test cases * Fixed breaking test case * Updated outputs of restore action * Changes for beta release * Update dist folder * Add support for gzip fallback for restore of old cache on windows * update for new beta release * Update save/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Added more assertions as values can't be checked * Removed unused code * Merged beta branch and resolved conflicts * Added save readme * Updates to save readme * Renamed output * Added cache hit info in readme * Update restore/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update save/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update save/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Removed verbose statements * Repositioned new actions introduction * Added test case for restore state * Addressed review comments * nit * nit: added language to code blocks * Updated beta version to 3.2.0-beta.1 * Added stateprovider mock implementations * Linting errors fixed * Save-only warning added * Updated return ID to -2 * Removed -2 error code * Removed comment * Updated cache npm lib version * Updated license version * Updated releases.md * Updated readme with the new actions in what's new Co-authored-by: Malo Bourgon <mbourgon@gmail.com> Co-authored-by: Vipul <vsvipul@github.com> Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> Co-authored-by: Tanuj Kumar Mishra <tanuj077@users.noreply.github.com> Co-authored-by: Sampark Sharma <phantsure@github.com>
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[Restore action](./restore/README.md)
GA for granular cache (#1035) * Add example for Haskell Stack * Revert "Add example for Haskell Stack" * Basic implementation * Updated variable name * Adding wrapper class * Changed logs to warnings * added debug logs * experimenting * Test * test * new try * test * Impl separated * Reverted wrapper changes * Added test cases * Some cleanup * Formatted document * Fixed test cases issues * Slight modification for test cases check * Updated new actions' input descriptions * Reverted custom asks implemented and added wrapper * refactor into a generic outputter * Readme draft for new actions * Generated dist * Fixed breaking test case * Removed return type in promise * Removed commented lines * Calling methods from same file * dist * update save as well * fix merge * Changes for beta release * Update dist folder * Fixed formatting * dist * Add support for gzip fallback for restore of old cache on windows * Fixed test cases * Fixed test cases * Added restore only and save only test cases * Updated new actions dist files * Removed comments * Fixed inputs * Renamed variables and added tests * Fixed breaking test case * Fixed review comments and tests * added stateprovider changes * Deleted stateprovider tests until added * Added stateprovider test cases * Fixed breaking test case * Updated outputs of restore action * Changes for beta release * Update dist folder * Add support for gzip fallback for restore of old cache on windows * update for new beta release * Update save/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Added more assertions as values can't be checked * Removed unused code * Merged beta branch and resolved conflicts * Added save readme * Updates to save readme * Renamed output * Added cache hit info in readme * Update restore/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update save/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update save/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Removed verbose statements * Repositioned new actions introduction * Added test case for restore state * Addressed review comments * nit * nit: added language to code blocks * Updated beta version to 3.2.0-beta.1 * Added stateprovider mock implementations * Linting errors fixed * Save-only warning added * Updated return ID to -2 * Removed -2 error code * Removed comment * Updated cache npm lib version * Updated license version * Updated releases.md * Updated readme with the new actions in what's new Co-authored-by: Malo Bourgon <mbourgon@gmail.com> Co-authored-by: Vipul <vsvipul@github.com> Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> Co-authored-by: Tanuj Kumar Mishra <tanuj077@users.noreply.github.com> Co-authored-by: Sampark Sharma <phantsure@github.com>
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[Save action](./save/README.md)
[![Tests](https://github.com/actions/cache/actions/workflows/workflow.yml/badge.svg)](https://github.com/actions/cache/actions/workflows/workflow.yml)
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## Documentation
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See ["Caching dependencies to speed up workflows"](https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows).
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## What's New
### v3
* Added support for caching from GHES 3.5.
* Fixed download issue for files > 2GB during restore.
* Updated the minimum runner version support from node 12 -> node 16.
* Fixed avoiding empty cache save when no files are available for caching.
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* Fixed tar creation error while trying to create tar with path as `~/` home folder on `ubuntu-latest`.
* Fixed zstd failing on amazon linux 2.0 runners.
* Fixed cache not working with github workspace directory or current directory.
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* Fixed the download stuck problem by introducing a timeout of 1 hour for cache downloads.
* Fix zstd not working for windows on gnu tar in issues.
* Allowing users to provide a custom timeout as input for aborting download of a cache segment using an environment variable `SEGMENT_DOWNLOAD_TIMEOUT_MINS`. Default is 60 minutes.
GA for granular cache (#1035) * Add example for Haskell Stack * Revert "Add example for Haskell Stack" * Basic implementation * Updated variable name * Adding wrapper class * Changed logs to warnings * added debug logs * experimenting * Test * test * new try * test * Impl separated * Reverted wrapper changes * Added test cases * Some cleanup * Formatted document * Fixed test cases issues * Slight modification for test cases check * Updated new actions' input descriptions * Reverted custom asks implemented and added wrapper * refactor into a generic outputter * Readme draft for new actions * Generated dist * Fixed breaking test case * Removed return type in promise * Removed commented lines * Calling methods from same file * dist * update save as well * fix merge * Changes for beta release * Update dist folder * Fixed formatting * dist * Add support for gzip fallback for restore of old cache on windows * Fixed test cases * Fixed test cases * Added restore only and save only test cases * Updated new actions dist files * Removed comments * Fixed inputs * Renamed variables and added tests * Fixed breaking test case * Fixed review comments and tests * added stateprovider changes * Deleted stateprovider tests until added * Added stateprovider test cases * Fixed breaking test case * Updated outputs of restore action * Changes for beta release * Update dist folder * Add support for gzip fallback for restore of old cache on windows * update for new beta release * Update save/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/action.yml Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Added more assertions as values can't be checked * Removed unused code * Merged beta branch and resolved conflicts * Added save readme * Updates to save readme * Renamed output * Added cache hit info in readme * Update restore/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update restore/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update save/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Update save/README.md Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> * Removed verbose statements * Repositioned new actions introduction * Added test case for restore state * Addressed review comments * nit * nit: added language to code blocks * Updated beta version to 3.2.0-beta.1 * Added stateprovider mock implementations * Linting errors fixed * Save-only warning added * Updated return ID to -2 * Removed -2 error code * Removed comment * Updated cache npm lib version * Updated license version * Updated releases.md * Updated readme with the new actions in what's new Co-authored-by: Malo Bourgon <mbourgon@gmail.com> Co-authored-by: Vipul <vsvipul@github.com> Co-authored-by: Bishal Prasad <bishal-pdmsft@github.com> Co-authored-by: Tanuj Kumar Mishra <tanuj077@users.noreply.github.com> Co-authored-by: Sampark Sharma <phantsure@github.com>
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* Two new actions available for granular control over caches - [restore](restore/action.yml) and [save](save/action.yml)
* Support cross-os caching as an opt-in feature. See [Cross OS caching](./tips-and-workarounds.md#cross-os-cache) for more info.
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Refer [here](https://github.com/actions/cache/blob/v2/README.md) for previous versions
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## Usage
### Pre-requisites
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).
If you are using this inside a container, a POSIX-compliant `tar` needs to be included and accessible in the execution path.
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### Inputs
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* `path` - A list of files, directories, and wildcard patterns to cache and restore. See [`@actions/glob`](https://github.com/actions/toolkit/tree/main/packages/glob) for supported patterns.
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* `key` - An explicit key for restoring and saving the cache
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* `restore-keys` - An ordered list of prefix-matched keys to use for restoring stale cache if no cache hit occurred for key.
* `enableCrossOsArchive` - An optional boolean when enabled, allows Windows runners to save or restore caches that can be restored or saved respectively on other platforms.
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#### Environment Variables
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* `SEGMENT_DOWNLOAD_TIMEOUT_MINS` - Segment download timeout (in minutes, default `60`) to abort download of the segment if not completed in the defined number of minutes. [Read more](https://github.com/actions/cache/blob/main/tips-and-workarounds.md#cache-segment-restore-timeout)
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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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> Note: `cache-hit` will be set to `true` only when cache hit occurs for the exact `key` match. For a partial key match via `restore-keys` or a cache miss, it will be set to `false`.
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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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### Cache scopes
The cache is scoped to the key, [version](#cache-version) and branch. The default branch cache is available to other branches.
See [Matching a cache key](https://help.github.com/en/actions/configuring-and-managing-workflows/caching-dependencies-to-speed-up-workflows#matching-a-cache-key) for more info.
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### Example workflow
```yaml
name: Caching Primes
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on: push
jobs:
build:
runs-on: ubuntu-latest
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steps:
- uses: actions/checkout@v3
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- name: Cache Primes
id: cache-primes
uses: actions/cache@v3
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with:
path: prime-numbers
key: ${{ runner.os }}-primes
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- name: Generate Prime Numbers
if: steps.cache-primes.outputs.cache-hit != 'true'
run: /generate-primes.sh -d prime-numbers
- name: Use Prime Numbers
run: /primes.sh -d prime-numbers
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```
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> Note: You must use the `cache` action in your workflow before you need to use the files that might be restored from the cache. If the provided `key` matches an existing cache, a new cache is not created and if the provided `key` doesn't match an existing cache, a new cache is automatically created provided the job completes successfully.
## Implementation Examples
Every programming language and framework has its own way of caching.
See [Examples](examples.md) for a list of `actions/cache` implementations for use with:
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- [C# - NuGet](./examples.md#c---nuget)
- [Clojure - Lein Deps](./examples.md#clojure---lein-deps)
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- [D - DUB](./examples.md#d---dub)
- [Deno](./examples.md#deno)
- [Elixir - Mix](./examples.md#elixir---mix)
- [Go - Modules](./examples.md#go---modules)
- [Haskell - Cabal](./examples.md#haskell---cabal)
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- [Haskell - Stack](./examples.md#haskell---stack)
- [Java - Gradle](./examples.md#java---gradle)
- [Java - Maven](./examples.md#java---maven)
- [Node - npm](./examples.md#node---npm)
- [Node - Lerna](./examples.md#node---lerna)
- [Node - Yarn](./examples.md#node---yarn)
- [OCaml/Reason - esy](./examples.md#ocamlreason---esy)
- [PHP - Composer](./examples.md#php---composer)
- [Python - pip](./examples.md#python---pip)
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- [Python - pipenv](./examples.md#python---pipenv)
- [R - renv](./examples.md#r---renv)
- [Ruby - Bundler](./examples.md#ruby---bundler)
- [Rust - Cargo](./examples.md#rust---cargo)
- [Scala - SBT](./examples.md#scala---sbt)
- [Swift, Objective-C - Carthage](./examples.md#swift-objective-c---carthage)
- [Swift, Objective-C - CocoaPods](./examples.md#swift-objective-c---cocoapods)
- [Swift - Swift Package Manager](./examples.md#swift---swift-package-manager)
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- [Swift - Mint](./examples.md#swift---mint)
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## Creating a cache key
A cache key can include any of the contexts, functions, literals, and operators supported by GitHub Actions.
For example, using the [`hashFiles`](https://docs.github.com/en/actions/learn-github-actions/expressions#hashfiles) function allows you to create a new cache when dependencies change.
```yaml
- uses: actions/cache@v3
with:
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path: |
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path/to/dependencies
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some/other/dependencies
key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
```
Additionally, you can use arbitrary command output in a cache key, such as a date or software version:
```yaml
# http://man7.org/linux/man-pages/man1/date.1.html
- name: Get Date
id: get-date
run: |
echo "::set-output name=date::$(/bin/date -u "+%Y%m%d")"
shell: bash
- uses: actions/cache@v3
with:
path: path/to/dependencies
key: ${{ runner.os }}-${{ steps.get-date.outputs.date }}-${{ hashFiles('**/lockfiles') }}
```
See [Using contexts to create cache keys](https://help.github.com/en/actions/configuring-and-managing-workflows/caching-dependencies-to-speed-up-workflows#using-contexts-to-create-cache-keys)
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## Cache Limits
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A repository can have up to 10GB of caches. Once the 10GB 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
Using the `cache-hit` output, subsequent steps (such as install or build) can be skipped when a cache hit occurs on the key. It is recommended to install the missing/updated dependencies in case of a partial key match when the key is dependent on the `hash` of the package file.
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Example:
```yaml
steps:
- uses: actions/checkout@v3
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- uses: actions/cache@v3
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id: cache
with:
path: path/to/dependencies
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key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
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- name: Install Dependencies
if: steps.cache.outputs.cache-hit != 'true'
run: /install.sh
```
> 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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## Cache Version
Cache version is a hash [generated](https://github.com/actions/toolkit/blob/500d0b42fee2552ae9eeb5933091fe2fbf14e72d/packages/cache/src/internal/cacheHttpClient.ts#L73-L90) for a combination of compression tool used (Gzip, Zstd, etc. based on the runner OS) and the `path` of directories being cached. If two caches have different versions, they are identified as unique caches while matching. This for example, means that a cache created on `windows-latest` runner can't be restored on `ubuntu-latest` as cache `Version`s are different.
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> Pro tip: [List caches](https://docs.github.com/en/rest/actions/cache#list-github-actions-caches-for-a-repository) API can be used to get the version of a cache. This can be helpful to troubleshoot cache miss due to version.
<details>
<summary>Example</summary>
The workflow will create 3 unique caches with same keys. Ubuntu and windows runners will use different compression technique and hence create two different caches. And `build-linux` will create two different caches as the `paths` are different.
```yaml
jobs:
build-linux:
runs-on: ubuntu-latest
steps:
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- uses: actions/checkout@v3
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- name: Cache Primes
id: cache-primes
uses: actions/cache@v3
with:
path: prime-numbers
key: primes
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- name: Generate Prime Numbers
if: steps.cache-primes.outputs.cache-hit != 'true'
run: ./generate-primes.sh -d prime-numbers
- name: Cache Numbers
id: cache-numbers
uses: actions/cache@v3
with:
path: numbers
key: primes
- name: Generate Numbers
if: steps.cache-numbers.outputs.cache-hit != 'true'
run: ./generate-primes.sh -d numbers
build-windows:
runs-on: windows-latest
steps:
- uses: actions/checkout@v3
- name: Cache Primes
id: cache-primes
uses: actions/cache@v3
with:
path: prime-numbers
key: primes
- name: Generate Prime Numbers
if: steps.cache-primes.outputs.cache-hit != 'true'
run: ./generate-primes -d prime-numbers
```
</details>
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## Known practices and workarounds
Following are some of the known practices/workarounds which community has used to fulfill specific requirements. You may choose to use them if suits your use case. Note these are not necessarily the only or the recommended solution.
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- [Cache segment restore timeout](./tips-and-workarounds.md#cache-segment-restore-timeout)
- [Update a cache](./tips-and-workarounds.md#update-a-cache)
- [Use cache across feature branches](./tips-and-workarounds.md#use-cache-across-feature-branches)
- [Cross OS cache](./tips-and-workarounds.md#cross-os-cache)
- [Force deletion of caches overriding default cache eviction policy](./tips-and-workarounds.md#force-deletion-of-caches-overriding-default-cache-eviction-policy)
#### Windows environment variables
Please note that Windows environment variables (like `%LocalAppData%`) will NOT be expanded by this action. Instead, prefer using `~` in your paths which will expand to HOME directory. For example, instead of `%LocalAppData%`, use `~\AppData\Local`. For a list of supported default environment variables, see [this](https://docs.github.com/en/actions/learn-github-actions/environment-variables) page.
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## Contributing
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
The scripts and documentation in this project are released under the [MIT License](LICENSE)