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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)
# Checkout V3
This action checks-out your repository under `$GITHUB_WORKSPACE`, so your workflow can access it.
Only a single commit is fetched by default, for the ref/SHA that triggered the workflow. Set `fetch-depth: 0` to fetch all history for all branches and tags. Refer [here](https://help.github.com/en/articles/events-that-trigger-workflows) to learn which commit `$GITHUB_SHA` points to for different events.
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.
# What's new
- 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.
# Usage
<!-- start usage -->
```yaml
- uses: actions/checkout@v3
with:
# Repository name with owner. For example, actions/checkout
# Default: ${{ github.repository }}
repository: ''
# The branch, tag or SHA to checkout. When checking out the repository that
# triggered a workflow, this defaults to the reference or SHA for that event.
# Otherwise, uses the default branch.
ref: ''
# 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.
#
# We recommend using a service account with the least permissions necessary. Also
# when generating a new PAT, select the least scopes necessary.
#
# [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)
#
# Default: ${{ github.token }}
token: ''
# 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
# post-job step removes the SSH key.
#
# We recommend using a service account with the least permissions necessary.
#
# [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
# Default: true
persist-credentials: ''
# 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: ''
# Number of commits to fetch. 0 indicates all history for all branches and tags.
# Default: 1
fetch-depth: ''
# Number of fetches to perform simultaneously when updating submodules: -1
# indicates to use git default (serial updates). 0 uses as many jobs as there are
# processors.
# Default: -1
fetch-jobs: ''
# Whether to download Git-LFS files
# Default: false
lfs: ''
# Whether to checkout submodules: `true` to checkout submodules or `recursive` to
# recursively checkout submodules.
#
# When the `ssh-key` input is not provided, SSH URLs beginning with
# `git@github.com:` are converted to HTTPS.
#
# Default: false
submodules: ''
# Add repository path as safe.directory for Git global config by running `git
# config --global --add safe.directory <path>`
# Default: true
set-safe-directory: ''
# 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: ''
```
<!-- end usage -->
# Scenarios
- [Fetch all history for all tags and branches](#Fetch-all-history-for-all-tags-and-branches)
- [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)
- [Push a commit using the built-in token](#Push-a-commit-using-the-built-in-token)
## Fetch all history for all tags and branches
```yaml
- uses: actions/checkout@v3
with:
fetch-depth: 0
```
## Checkout a different branch
```yaml
- uses: actions/checkout@v3
with:
ref: my-branch
```
## Checkout HEAD^
```yaml
- uses: actions/checkout@v3
with:
fetch-depth: 2
- run: git checkout HEAD^
```
## Checkout multiple repos (side by side)
```yaml
- name: Checkout
uses: actions/checkout@v3
with:
path: main
- name: Checkout tools repo
uses: actions/checkout@v3
with:
repository: my-org/my-tools
path: my-tools
```
> - If your secondary repository is private you will need to add the option noted in [Checkout multiple repos (private)](#Checkout-multiple-repos-private)
## Checkout multiple repos (nested)
```yaml
- name: Checkout
uses: actions/checkout@v3
- name: Checkout tools repo
uses: actions/checkout@v3
with:
repository: my-org/my-tools
path: my-tools
```
> - If your secondary repository is private you will need to add the option noted in [Checkout multiple repos (private)](#Checkout-multiple-repos-private)
## Checkout multiple repos (private)
```yaml
- name: Checkout
uses: actions/checkout@v3
with:
path: main
- name: Checkout private tools
uses: actions/checkout@v3
with:
repository: my-org/my-private-tools
token: ${{ secrets.GH_PAT }} # `GH_PAT` is a secret that contains your PAT
path: my-tools
```
> - `${{ 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
```yaml
- uses: actions/checkout@v3
with:
ref: ${{ github.event.pull_request.head.sha }}
```
## Checkout pull request on closed event
```yaml
on:
pull_request:
branches: [main]
types: [opened, synchronize, closed]
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
```
## Push a commit using the built-in token
```yaml
on: push
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- run: |
date > generated.txt
git config user.name github-actions
git config user.email github-actions@github.com
git add .
git commit -m "generated"
git push
```
# License
The scripts and documentation in this project are released under the [MIT License](LICENSE)
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