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Action for checking out a repo
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Jeff Widman aea6c75c98
Suppress "detached head" advice during checkout
Checking out certain `ref` values will result in a warning about a detached `HEAD`:
```
You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by switching back to a branch.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -c with the switch command. Example:

  git switch -c <new-branch-name>

Or undo this operation with:

  git switch -

Turn off this advice by setting config variable advice.detachedHead to false
```

However, this warning isn't useful in a CI environment... so suppress it.

I realize on the original bug report that one user mentioned this warning
highlighted a bug in his actions flow, but I consider that a super rare / happy accident.
99% of use cases will be _intentionally_ checking out a specific ref where
the detached head state is inevitable, so the warning is pure noise.

Passing the config this way sets it _only_ for this command. Note that it
must be set [_before_ calling `checkout`](https://stackoverflow.com/a/72588008/770425).

Resolve: https://github.com/actions/checkout/issues/494
2022-10-23 21:29:17 -07:00
.github/workflows Add workflow to update a main version (#942) 2022-10-04 13:44:41 +01:00
.licenses/npm Bump @actions/core to 1.10.0 (#939) 2022-10-03 18:04:49 +01:00
__test__ Inject GitHub host to be able to clone from another GitHub instance (#922) 2022-09-26 12:34:52 -04:00
adrs update default branch (#305) 2020-07-14 09:23:30 -04:00
dist Bump @actions/core to 1.10.0 (#939) 2022-10-03 18:04:49 +01:00
src Suppress "detached head" advice during checkout 2022-10-23 21:29:17 -07:00
.eslintignore Convert checkout to a regular action (#70) 2019-12-03 10:28:59 -05:00
.eslintrc.json update dev dependencies and react to new linting rules (#611) 2021-10-19 09:52:57 -05:00
.gitattributes Add Licensed To Help Verify Prod Licenses (#326) 2020-09-10 09:24:29 -04:00
.gitignore Inject GitHub host to be able to clone from another GitHub instance (#922) 2022-09-26 12:34:52 -04:00
.licensed.yml Add Licensed To Help Verify Prod Licenses (#326) 2020-09-10 09:24:29 -04:00
.prettierignore Convert checkout to a regular action (#70) 2019-12-03 10:28:59 -05:00
.prettierrc.json Convert checkout to a regular action (#70) 2019-12-03 10:28:59 -05:00
action.yml Inject GitHub host to be able to clone from another GitHub instance (#922) 2022-09-26 12:34:52 -04:00
CHANGELOG.md Prepare release v3.1.0 (#940) 2022-10-04 10:37:06 +01:00
CODEOWNERS Create CODEOWNERS 2021-02-04 12:25:41 -05:00
jest.config.js Convert checkout to a regular action (#70) 2019-12-03 10:28:59 -05:00
LICENSE Add docs (#2) 2019-07-23 15:32:03 -04:00
package-lock.json Prepare release v3.1.0 (#940) 2022-10-04 10:37:06 +01:00
package.json Prepare release v3.1.0 (#940) 2022-10-04 10:37:06 +01:00
README.md README - fix status badge (#967) 2022-10-17 09:49:29 -04:00
tsconfig.json update dev dependencies and react to new linting rules (#611) 2021-10-19 09:52:57 -05:00

Build and Test

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 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 version of v2.285.0 to run, which is by default available in GHES 3.4 or later.

Usage

- 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: ''

    # 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: ''

Scenarios

Fetch all history for all tags and branches

- uses: actions/checkout@v3
  with:
    fetch-depth: 0

Checkout a different branch

- uses: actions/checkout@v3
  with:
    ref: my-branch

Checkout HEAD^

- uses: actions/checkout@v3
  with:
    fetch-depth: 2
- run: git checkout HEAD^

Checkout multiple repos (side by side)

- 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

Checkout multiple repos (nested)

- name: Checkout
  uses: actions/checkout@v3

- name: Checkout tools repo
  uses: actions/checkout@v3
  with:
    repository: my-org/my-tools
    path: my-tools

Checkout multiple repos (private)

- 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.

Checkout pull request HEAD commit instead of merge commit

- uses: actions/checkout@v3
  with:
    ref: ${{ github.event.pull_request.head.sha }}

Checkout pull request on closed event

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

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