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[![Build and Test ](https://github.com/actions/checkout/actions/workflows/test.yml/badge.svg )](https://github.com/actions/checkout/actions/workflows/test.yml)
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# Checkout V3
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This action checks-out your repository under `$GITHUB_WORKSPACE` , so your workflow can access it.
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Only a single commit is fetched by default, for the ref/SHA that triggered the workflow. Set `fetch-depth: 0` to fetch all history for all branches and tags. Refer [here ](https://help.github.com/en/articles/events-that-trigger-workflows ) to learn which commit `$GITHUB_SHA` points to for different events.
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The auth token is persisted in the local git config. This enables your scripts to run authenticated git commands. The token is removed during post-job cleanup. Set `persist-credentials: false` to opt-out.
When Git 2.18 or higher is not in your PATH, falls back to the REST API to download the files.
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# What's new
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- Updated to the node16 runtime by default
- This requires a minimum [Actions Runner ](https://github.com/actions/runner/releases/tag/v2.285.0 ) version of v2.285.0 to run, which is by default available in GHES 3.4 or later.
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# Usage
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<!-- start usage -->
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```yaml
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- uses: actions/checkout@v3
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with:
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# Repository name with owner. For example, actions/checkout
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# Default: ${{ github.repository }}
repository: ''
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# The branch, tag or SHA to checkout. When checking out the repository that
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# triggered a workflow, this defaults to the reference or SHA for that event.
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# Otherwise, uses the default branch.
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ref: ''
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# Personal access token (PAT) used to fetch the repository. The PAT is configured
# with the local git config, which enables your scripts to run authenticated git
# commands. The post-job step removes the PAT.
#
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# We recommend using a service account with the least permissions necessary. Also
# when generating a new PAT, select the least scopes necessary.
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# For a basic restricted reference, you can use the same permissions as the
# [`GITHUB_TOKEN` gives. ](https://docs.github.com/en/actions/security-guides/automatic-token-authentication#permissions-for-the-github_token )
# This means creating a "Fine-grained personal access token" with the
# `content` and `metadata` permissions.
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#
# [Learn more about creating and using encrypted secrets ](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/creating-and-using-encrypted-secrets )
#
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# Default: ${{ github.token }}
token: ''
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# SSH key used to fetch the repository. The SSH key is configured with the local
# git config, which enables your scripts to run authenticated git commands. The
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# post-job step removes the SSH key.
#
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# We recommend using a service account with the least permissions necessary.
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#
# [Learn more about creating and using encrypted secrets ](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/creating-and-using-encrypted-secrets )
ssh-key: ''
# Known hosts in addition to the user and global host key database. The public SSH
# keys for a host may be obtained using the utility `ssh-keyscan` . For example,
# `ssh-keyscan github.com` . The public key for github.com is always implicitly
# added.
ssh-known-hosts: ''
# Whether to perform strict host key checking. When true, adds the options
# `StrictHostKeyChecking=yes` and `CheckHostIP=no` to the SSH command line. Use
# the input `ssh-known-hosts` to configure additional hosts.
# Default: true
ssh-strict: ''
# Whether to configure the token or SSH key with the local git config
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# Default: true
persist-credentials: ''
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# Relative path under $GITHUB_WORKSPACE to place the repository
path: ''
# Whether to execute `git clean -ffdx && git reset --hard HEAD` before fetching
# Default: true
clean: ''
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# Number of commits to fetch. 0 indicates all history for all branches and tags.
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# Default: 1
fetch-depth: ''
# Whether to download Git-LFS files
# Default: false
lfs: ''
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# Whether to checkout submodules: `true` to checkout submodules or `recursive` to
# recursively checkout submodules.
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#
# When the `ssh-key` input is not provided, SSH URLs beginning with
# `git@github.com:` are converted to HTTPS.
#
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# Default: false
submodules: ''
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# Add repository path as safe.directory for Git global config by running `git
# config --global --add safe.directory < path > `
# Default: true
set-safe-directory: ''
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# The base URL for the GitHub instance that you are trying to clone from, will use
# environment defaults to fetch from the same instance that the workflow is
# running from unless specified. Example URLs are https://github.com or
# https://my-ghes-server.example.com
github-server-url: ''
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```
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<!-- end usage -->
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# Scenarios
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- [Fetch all history for all tags and branches ](#Fetch-all-history-for-all-tags-and-branches )
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- [Checkout a different branch ](#Checkout-a-different-branch )
- [Checkout HEAD^ ](#Checkout-HEAD )
- [Checkout multiple repos (side by side) ](#Checkout-multiple-repos-side-by-side )
- [Checkout multiple repos (nested) ](#Checkout-multiple-repos-nested )
- [Checkout multiple repos (private) ](#Checkout-multiple-repos-private )
- [Checkout pull request HEAD commit instead of merge commit ](#Checkout-pull-request-HEAD-commit-instead-of-merge-commit )
- [Checkout pull request on closed event ](#Checkout-pull-request-on-closed-event )
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- [Push a commit using the built-in token ](#Push-a-commit-using-the-built-in-token )
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## Fetch all history for all tags and branches
```yaml
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- uses: actions/checkout@v3
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with:
fetch-depth: 0
```
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## Checkout a different branch
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```yaml
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- uses: actions/checkout@v3
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with:
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ref: my-branch
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```
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## Checkout HEAD^
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```yaml
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- uses: actions/checkout@v3
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with:
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fetch-depth: 2
- run: git checkout HEAD^
```
## Checkout multiple repos (side by side)
```yaml
- name: Checkout
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uses: actions/checkout@v3
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with:
path: main
- name: Checkout tools repo
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uses: actions/checkout@v3
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with:
repository: my-org/my-tools
path: my-tools
```
## Checkout multiple repos (nested)
```yaml
- name: Checkout
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uses: actions/checkout@v3
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- name: Checkout tools repo
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uses: actions/checkout@v3
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with:
repository: my-org/my-tools
path: my-tools
```
## Checkout multiple repos (private)
```yaml
- name: Checkout
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uses: actions/checkout@v3
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with:
path: main
- name: Checkout private tools
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uses: actions/checkout@v3
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with:
repository: my-org/my-private-tools
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token: ${{ secrets.GH_PAT }} # `GH_PAT` is a secret that contains your PAT
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path: my-tools
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```
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> - `${{ github.token }}` is scoped to the current repository, so if you want to checkout a different repository that is private you will need to provide your own [PAT](https://help.github.com/en/github/authenticating-to-github/creating-a-personal-access-token-for-the-command-line).
## Checkout pull request HEAD commit instead of merge commit
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```yaml
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- uses: actions/checkout@v3
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with:
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ref: ${{ github.event.pull_request.head.sha }}
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```
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## Checkout pull request on closed event
```yaml
on:
pull_request:
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branches: [main]
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types: [opened, synchronize, closed]
jobs:
build:
runs-on: ubuntu-latest
steps:
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- uses: actions/checkout@v3
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```
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## Push a commit using the built-in token
```yaml
on: push
jobs:
build:
runs-on: ubuntu-latest
steps:
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- uses: actions/checkout@v3
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- run: |
date > generated.txt
git config user.name github-actions
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git config user.email github-actions@github.com
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git add .
git commit -m "generated"
git push
```
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# License
The scripts and documentation in this project are released under the [MIT License ](LICENSE )