- [Fixed an issue where checkout failed to run in container jobs due to the new git setting `safe.directory`](https://github.com/actions/checkout/pull/762)
- [Bumped various npm package versions](https://github.com/actions/checkout/pull/744)
@ -66,7 +69,6 @@
- Aligns better with container actions, where `github.workspace` gets mapped in
- Removed input `submodules`
## v1
Refer [here](https://github.com/actions/checkout/blob/v1/CHANGELOG.md) for the V1 changelog
@ -18,6 +18,7 @@ When Git 2.18 or higher is not in your PATH, falls back to the REST API to downl
# Usage
<!-- start usage -->
```yaml
- uses: actions/checkout@v3
with:
@ -102,6 +103,7 @@ When Git 2.18 or higher is not in your PATH, falls back to the REST API to downl
# https://my-ghes-server.example.com
github-server-url: ''
```
<!-- end usage -->
# Scenarios
@ -187,7 +189,6 @@ When Git 2.18 or higher is not in your PATH, falls back to the REST API to downl
> - `${{ 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
@ -17,76 +17,77 @@ We want to take this opportunity to make behavioral changes, from v1. This docum
### Inputs
```yaml
repository:
description: 'Repository name with owner. For example, actions/checkout'
default: ${{ github.repository }}
ref:
description: >
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.
token:
description: >
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 }}
ssh-key:
description: >
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.
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-strict:
description: >
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
persist-credentials:
description: 'Whether to configure the token or SSH key with the local git config'
default: true
path:
description: 'Relative path under $GITHUB_WORKSPACE to place the repository'
clean:
description: 'Whether to execute `git clean -ffdx && git reset --hard HEAD` before fetching'
default: true
fetch-depth:
description: 'Number of commits to fetch. 0 indicates all history for all tags and branches.'
default: 1
lfs:
description: 'Whether to download Git-LFS files'
default: false
submodules:
description: >
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
repository:
description: 'Repository name with owner. For example, actions/checkout'
default: ${{ github.repository }}
ref:
description: >
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.
token:
description: >
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 }}
ssh-key:
description: >
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.
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-strict:
description: >
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
persist-credentials:
description: 'Whether to configure the token or SSH key with the local git config'
default: true
path:
description: 'Relative path under $GITHUB_WORKSPACE to place the repository'
clean:
description: 'Whether to execute `git clean -ffdx && git reset --hard HEAD` before fetching'
default: true
fetch-depth:
description: 'Number of commits to fetch. 0 indicates all history for all tags and branches.'
default: 1
lfs:
description: 'Whether to download Git-LFS files'
default: false
submodules:
description: >
Whether to checkout submodules: `true` to checkout submodules or `recursive` to
recursively checkout submodules.
When the `ssh-key` input is not provided, SSH URLs beginning with `git@github.com:` are
converted to HTTPS.
default: false
```
Note:
- SSH support is new
- `persist-credentials` is new
- `path` behavior is different (refer [below](#path) for details)
@ -96,6 +97,7 @@ Note:
When a sufficient version of git is not in the PATH, fallback to the [web API](https://developer.github.com/v3/repos/contents/#get-archive-link) to download a tarball/zipball.
Note:
- LFS files are not included in the archive. Therefore fail if LFS is set to true.
- Submodules are also not included in the archive.
@ -108,6 +110,7 @@ A post script will remove the credentials (cleanup for self-hosted).
Users may opt-out by specifying `persist-credentials: false`
Note:
- Users scripting `git commit` may need to set the username and email. The service does not provide any reasonable default value. Users can add `git config user.name <NAME>` and `git config user.email <EMAIL>`. We will document this guidance.
#### PAT
@ -115,6 +118,7 @@ Note:
When using the `${{github.token}}` or a PAT, the token will be persisted in the local git config. The config key `http.https://github.com/.extraheader` enables an auth header to be specified on all authenticated commands `AUTHORIZATION: basic <BASE64_U:P>`.
Note:
- The auth header is scoped to all of github `http.https://github.com/.extraheader`
- Additional public remotes also just work.
- If users want to authenticate to an additional private remote, they should provide the `token` input.
When the input `ssh-strict` is set to `false`, the options `CheckHostIP` and `StrictHostKeyChecking` will not be overridden.
Note:
- When `ssh-strict` is set to `true` (default), the SSH option `CheckHostIP` can safely be disabled.
Strict host checking verifies the server's public key. Therefore, IP verification is unnecessary
and noisy. For example:
@ -158,6 +163,7 @@ If a SHA isn't available (e.g. multi repo), then fetch only the specified ref wi
The input `fetch-depth` can be used to control the depth.
Note:
- Fetching a single commit is supported by Git wire protocol version 2. The git client uses protocol version 0 by default. The desired protocol version can be overridden in the git config or on the fetch command line invocation (`-c protocol.version=2`). We will override on the fetch command line, for transparency.
- Git client version 2.18+ (released June 2018) is required for wire protocol version 2.
@ -168,6 +174,7 @@ For CI, checkout will create a local ref with the upstream set. This allows user
For PR, continue to checkout detached head. The PR branch is special - the branch and merge commit are created by the server. It doesn't match a users' local workflow.
Note:
- Consider deleting all local refs during cleanup if that helps avoid collisions. More testing required.
### Path
@ -192,6 +199,7 @@ These behavioral changes align better with container actions. The [documented fi
- `/github/workflow`
Note:
- The tracking config will not be updated to reflect the path of the workflow repo.
- Any existing workflow repo will not be moved when the checkout path changes. In fact some customers want to checkout the workflow repo twice, side by side against different branches.
- Actions that need to operate only against the root of the self repo, should expose a `path` input.
@ -205,6 +213,7 @@ This default fits the mainline scenario well: single checkout
For multi-checkout, users must specify the `path` input for at least one of the repositories.
Note:
- An alternative is for the self repo to default to `./` and other repos default to `<REPO_NAME>`. However nested layout is an atypical git layout and therefore is not a good default. Users should supply the path info.
#### Example - Nested layout
@ -265,6 +274,7 @@ Credentials will be persisted in the submodules local git config too.
### Port to typescript
The checkout action should be a typescript action on the GitHub graph, for the following reasons:
- Enables customers to fork the checkout repo and modify
- Serves as an example for customers
- Demystifies the checkout action manifest
@ -272,6 +282,7 @@ The checkout action should be a typescript action on the GitHub graph, for the f
- Reduce the amount of runner code to port (if we ever do)
Note:
- This means job-container images will need git in the PATH, for checkout.
Nick Schonning
3 years ago