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@ -26,63 +26,83 @@ This Action provides Amazon Web Services S3 backend (and compatible software) fo
```
Please see [actions.yml](https://github.com/whywaita/actions-cache-s3/blob/main/action.yml) about input parameters.
# cache
# Cache action
This action allows caching dependencies and build outputs to improve workflow execution time.
<a href="https://github.com/actions/cache/actions?query=workflow%3ATests"><img alt="GitHub Actions status" src="https://github.com/actions/cache/workflows/Tests/badge.svg?branch=main&event=push"></a>
>Two other actions are available in addition to the primary `cache` action:
>* [Restore action](./restore/README.md)
>* [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)
## Documentation
See ["Caching dependencies to speed up workflows"](https://help.github.com/github/automating-your-workflow-with-github-actions/caching-dependencies-to-speed-up-workflows).
See ["Caching dependencies to speed up workflows"](https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows).
## What's New
* Added support for multiple paths, [glob patterns](https://github.com/actions/toolkit/tree/main/packages/glob), and single file caches.
### v3
```yaml
- name: Cache multiple paths
uses: actions/cache@v2
with:
path: |
~/cache
!~/cache/exclude
key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
```
* Added support for caching in 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.
* 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.
* 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 10 minutes.
* New actions are 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.
* Added option to fail job on cache miss. See [Exit workflow on cache miss](./restore/README.md#exit-workflow-on-cache-miss) for more info.
* Fix zstd not being used after zstd version upgrade to 1.5.4 on hosted runners
* Added option to lookup cache without downloading it.
* Reduced segment size to 128MB and segment timeout to 10 minutes to fail fast in case the cache download is stuck.
* Increased performance and improved cache sizes using `zstd` compression for Linux and macOS runners
* Allowed caching for all events with a ref. See [events that trigger workflow](https://help.github.com/en/actions/reference/events-that-trigger-workflows) for info on which events do not have a `GITHUB_REF`
* Released the [`@actions/cache`](https://github.com/actions/toolkit/tree/main/packages/cache) npm package to allow other actions to utilize caching
* Added a best-effort cleanup step to delete the archive after extraction to reduce storage space
Refer [here](https://github.com/actions/cache/blob/v1/README.md) for previous versions
See the [v2 README.md](https://github.com/actions/cache/blob/v2/README.md) for older updates.
## 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.
Create a workflow `.yml` file in your repository's `.github/workflows` directory. An [example workflow](#example-cache-workflow) is available below. For more information, see 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 from the execution path.
If you are using a `self-hosted` Windows runner, `GNU tar` and `zstd` are required for [Cross-OS caching](https://github.com/actions/cache/blob/main/tips-and-workarounds.md#cross-os-cache) to work. They are also recommended to be installed in general so the performance is on par with `hosted` Windows runners.
### Inputs
* `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.
* `key` - An explicit key for restoring and saving the cache
* `restore-keys` - An ordered list of keys to use for restoring the cache if no cache hit occurred for key
* `key` - An explicit key for a cache entry. See [creating a cache key](#creating-a-cache-key).
* `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.
* `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. Default: `false`
* `fail-on-cache-miss` - Fail the workflow if cache entry is not found. Default: `false`
* `lookup-only` - If true, only checks if cache entry exists and skips download. Does not change save cache behavior. Default: `false`
#### Environment Variables
* `SEGMENT_DOWNLOAD_TIMEOUT_MINS` - Segment download timeout (in minutes, default `10`) 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)
### Outputs
* `cache-hit` - A boolean value to indicate an exact match was found for the key
* `cache-hit` - A boolean value to indicate an exact match was found for the key.
> See [Skipping steps based on cache-hit](#Skipping-steps-based-on-cache-hit) for info on using this output
> **Note** `cache-hit` will only be set to `true` when a 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`.
See [Skipping steps based on cache-hit](#skipping-steps-based-on-cache-hit) for info on using this output
### Cache scopes
The cache is scoped to the key and branch. The default branch cache is available to other branches.
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.
### Example workflow
### Example cache workflow
#### Restoring and saving cache using a single action
```yaml
name: Caching Primes
@ -94,11 +114,11 @@ jobs:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- uses: actions/checkout@v3
- name: Cache Primes
id: cache-primes
uses: actions/cache@v2
uses: actions/cache@v3
with:
path: prime-numbers
key: ${{ runner.os }}-primes
@ -111,46 +131,94 @@ jobs:
run: /primes.sh -d prime-numbers
```
The `cache` action provides a `cache-hit` output which is set to `true` when the cache is restored using the primary `key` and `false` when the cache is restored using `restore-keys` or no cache is restored.
#### Using a combination of restore and save actions
```yaml
name: Caching Primes
on: push
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- name: Restore cached Primes
id: cache-primes-restore
uses: actions/cache/restore@v3
with:
path: |
path/to/dependencies
some/other/dependencies
key: ${{ runner.os }}-primes
.
. //intermediate workflow steps
.
- name: Save Primes
id: cache-primes-save
uses: actions/cache/save@v3
with:
path: |
path/to/dependencies
some/other/dependencies
key: ${{ steps.cache-primes-restore.outputs.cache-primary-key }}
```
> **Note**
> You must use the `cache` or `restore` 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.
## Caching Strategies
With the introduction of the `restore` and `save` actions, a lot of caching use cases can now be achieved. Please see the [caching strategies](./caching-strategies.md) document for understanding how you can use the actions strategically to achieve the desired goal.
## 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:
- [C# - Nuget](./examples.md#c---nuget)
- [D - DUB](./examples.md#d---dub)
- [Elixir - Mix](./examples.md#elixir---mix)
- [Go - Modules](./examples.md#go---modules)
- [Haskell - Cabal](./examples.md#haskell---cabal)
- [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)
- [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)
* [C# - NuGet](./examples.md#c---nuget)
* [Clojure - Lein Deps](./examples.md#clojure---lein-deps)
* [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)
* [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)
* [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)
* [Swift - Mint](./examples.md#swift---mint)
## 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://help.github.com/en/actions/reference/context-and-expression-syntax-for-github-actions#hashfiles) function allows you to create a new cache when dependencies change.
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@v2
- uses: actions/cache@v3
with:
path: |
path: |
path/to/dependencies
some/other/dependencies
some/other/dependencies
key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
```
@ -161,10 +229,10 @@ Additionally, you can use arbitrary command output in a cache key, such as a dat
- name: Get Date
id: get-date
run: |
echo "::set-output name=date::$(/bin/date -u "+%Y%m%d")"
echo "date=$(/bin/date -u "+%Y%m%d")" >> $GITHUB_OUTPUT
shell: bash
- uses: actions/cache@v2
- uses: actions/cache@v3
with:
path: path/to/dependencies
key: ${{ runner.os }}-${{ steps.get-date.outputs.date }}-${{ hashFiles('**/lockfiles') }}
@ -180,14 +248,15 @@ Eviction may be handled separately, for example using [S3 Lifecycle](https://doc
## 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.
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 missing/updated dependencies in case of a partial key match when the key is dependent on the `hash` of the package file.
Example:
```yaml
steps:
- uses: actions/checkout@v2
- uses: actions/checkout@v3
- uses: actions/cache@v2
- uses: actions/cache@v3
id: cache
with:
path: path/to/dependencies
@ -198,16 +267,84 @@ steps:
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`)
> **Note** The `id` defined in `actions/cache` must match the `id` in the `if` statement (i.e. `steps.[ID].outputs.cache-hit`)
## Known limitation
## Cache Version
- `action/cache` is currently not supported on GitHub Enterprise Server. <https://github.com/github/roadmap/issues/273> is tracking this.
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 a `windows-latest` runner can't be restored on `ubuntu-latest` as cache `Version`s are different.
Since GitHub Enterprise Server uses self-hosted runners, dependencies are typically cached on the runner by whatever dependency management tool is being used (npm, maven, etc.). This eliminates the need for explicit caching in some scenarios.
> Pro tip: The [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:
- 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.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>
## Known practices and workarounds
There are a number of community practices/workarounds to fulfill specific requirements. You may choose to use them if they suit your use case. Note these are not necessarily the only solution or even a recommended solution.
* [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 the HOME directory. For example, instead of `%LocalAppData%`, use `~\AppData\Local`. For a list of supported default environment variables, see the [Learn GitHub Actions: Variables](https://docs.github.com/en/actions/learn-github-actions/variables#default-environment-variables) page.
## 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.
We would love for you to contribute to `actions/cache`. Pull requests are welcome! Please see the [CONTRIBUTING.md](CONTRIBUTING.md) for more information.
## License
The scripts and documentation in this project are released under the [MIT License](LICENSE)