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Johannes Schindelin d106d4669b
Add support for sparse checkouts (#1369)
* Add support for sparse checkouts

* sparse-checkout: optionally turn off cone mode

While it _is_ true that cone mode is the default nowadays (mainly for
performance reasons: code mode is much faster than non-cone mode), there
_are_ legitimate use cases where non-cone mode is really useful.

Let's add a flag to optionally disable cone mode.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

* Verify minimum Git version for sparse checkout

The `git sparse-checkout` command is available only since Git version
v2.25.0. The `actions/checkout` Action actually supports older Git
versions than that; As of time of writing, the minimum version is
v2.18.0.

Instead of raising this minimum version even for users who do not
require a sparse checkout, only check for this minimum version
specifically when a sparse checkout was asked for.

Suggested-by: Tingluo Huang <tingluohuang@github.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

* Support sparse checkout/LFS better

Instead of fetching all the LFS objects present in the current revision
in a sparse checkout, whether they are needed inside the sparse cone or
not, let's instead only pull the ones that are actually needed.

To do that, let's avoid running that preemptive `git lfs fetch` call in
case of a sparse checkout.

An alternative that was considered during the development of this patch
(and ultimately rejected) was to use `git lfs pull --include <path>...`,
but it turned out to be too inflexible because it requires exact paths,
not the patterns that are available via the sparse checkout definition,
and that risks running into command-line length limitations.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

---------

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Co-authored-by: Daniel <daniel.fernandez@feverup.com>
2023-06-09 09:08:21 -04:00
.github/workflows Add support for sparse checkouts (#1369) 2023-06-09 09:08:21 -04:00
.licenses/npm Improve checkout performance on Windows runners by upgrading @actions/github dependency (#1246) 2023-04-12 13:55:27 +02:00
__test__ Add support for sparse checkouts (#1369) 2023-06-09 09:08:21 -04:00
adrs Fix typos found by codespell (#1287) 2023-04-19 16:55:10 +02:00
dist Add support for sparse checkouts (#1369) 2023-06-09 09:08:21 -04:00
src Add support for sparse checkouts (#1369) 2023-06-09 09:08:21 -04:00
.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 Add support for sparse checkouts (#1369) 2023-06-09 09:08:21 -04:00
CHANGELOG.md Release v3.5.2 (#1291) 2023-04-13 14:45:33 +02:00
CODEOWNERS Create CODEOWNERS 2021-02-04 12:25:41 -05:00
CONTRIBUTING.md Replace datadog/squid with ubuntu/squid Docker image (#1002) 2022-11-10 15:54:12 -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 Release v3.5.2 (#1291) 2023-04-13 14:45:33 +02:00
package.json Release v3.5.2 (#1291) 2023-04-13 14:45:33 +02:00
README.md Add support for sparse checkouts (#1369) 2023-06-09 09:08:21 -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: ''

    # Do a sparse checkout on given patterns. Each pattern should be separated with
    # new lines
    # Default: null
    sparse-checkout: ''

    # Specifies whether to use cone-mode when doing a sparse checkout.
    # Default: true
    sparse-checkout-cone-mode: ''

    # 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 only the root files

- uses: actions/checkout@v3
  with:
    sparse-checkout: .

Fetch only the root files and .github and src folder

- uses: actions/checkout@v3
  with:
    sparse-checkout: |
      .github
      src      

Fetch only a single file

- uses: actions/checkout@v3
  with:
    sparse-checkout: |
      README.md      
    sparse-checkout-cone-mode: false

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