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changesets-action/README.md
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Mateusz Burzyński 219ea82e52 Remove setup-git-user in favor of setting fallback only when identity is missing (#688)
* Experiment with skipping setup-git-user more often

* drop setup-git-user

* fix tests
2026-07-27 05:02:39 +00:00

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# Changesets Release Action
> [!IMPORTANT]
> This is the development branch for `changesets/action` v2 compatible with Changesets v3. For the v1 code compatible with Changesets v2, check out the [`maintenance/v1`](https://github.com/changesets/action/tree/maintenance/v1) branch.
This action for [Changesets](https://github.com/changesets/changesets) creates a pull request with all of the package versions updated and changelogs updated and when there are new changesets on [your configured `baseBranch`](https://github.com/changesets/changesets/blob/main/docs/config-file-options.md#basebranch-git-branch-name), the PR will be updated. When you're ready, you can merge the pull request and you can either publish the packages to npm manually or setup the action to do it for you.
There are also sub-actions hosted in this repository. Check out their respective READMEs for more details:
- [pr-status](./pr-status/README.md): Generate changeset status in PRs.
- [pr-comment](./pr-comment/README.md): Comment on PRs.
## Usage
### Inputs
- publish-script - The command to use to build and publish packages
- version-script - The command to update version, edit CHANGELOG, read and delete changesets. Default to `changeset version` if not provided
- commit-message - The commit message to use. Default to `Version Packages`
- pr-title - The pull request title. Default to `Version Packages`
- create-github-releases - A boolean value to indicate whether to create Github releases after `publish` or not. Default to `true`
- push-git-tags - A boolean value to indicate whether to create git tags after `publish` or not. Default to `true`
- commit-mode - Specifies the commit mode. Use `"git-cli"` to push changes using the Git CLI, or `"github-api"` to push changes via the GitHub API. When using `"github-api"`, all commits and tags are GPG-signed and attributed to the user or app who owns the `GITHUB_TOKEN`. Default to `git-cli`
- cwd - Changes node's `process.cwd()` if the project is not located on the root. Default to `process.cwd()`
- pr-draft - Controls draft PR behavior. Use `create` to create new version PRs as draft, or `always` to also convert existing version PRs back to draft when updating them. By default, version PRs are not forced into draft mode
- github-token - Passes a custom GitHub token
Before creating local commits or annotated tags, the action preserves complete
Git author and committer identities configured through the environment or Git
configuration. If either identity is unavailable, it configures
`github-actions[bot]` as a fallback.
### Outputs
- published - A boolean value to indicate whether a publishing has happened or not
- published-packages - A JSON array to present the published packages. The format is `[{"name": "@xx/xx", "version": "1.2.0"}, {"name": "@xx/xy", "version": "0.8.9"}]`
### Example workflow
#### Without Publishing
Create a file at `.github/workflows/release.yml` with the following content.
```yml
name: Release
on:
push:
branches:
- main
concurrency: ${{ github.workflow }}-${{ github.ref }}
jobs:
release:
name: Release
runs-on: ubuntu-latest
steps:
- name: Checkout Repo
uses: actions/checkout@v6
- name: Setup pnpm
uses: pnpm/action-setup@v6
- name: Setup Node.js 26
uses: actions/setup-node@v6
with:
node-version: 26
- name: Install Dependencies
run: pnpm install --frozen-lockfile
- name: Create Release Pull Request
uses: changesets/action@v2
```
#### With Publishing
Check the [npm authentication guide](./docs/set-up-npm-auth.md) to set up publishing to npm. After that, an example workflow with publishing may look like this:
```yml
name: Release
on:
push:
branches:
- main
concurrency: ${{ github.workflow }}-${{ github.ref }}
jobs:
release:
name: Release
runs-on: ubuntu-latest
steps:
- name: Checkout Repo
uses: actions/checkout@v6
- name: Setup pnpm
uses: pnpm/action-setup@v6
- name: Setup Node.js 26
uses: actions/setup-node@v6
with:
node-version: 26
registry-url: https://registry.npmjs.org/ # makes the action set up npm authentication
- name: Install Dependencies
run: pnpm install --frozen-lockfile
- name: Create Release Pull Request or Publish to npm
id: changesets
uses: changesets/action@v2
with:
# This expects you to have a script called release which does a build for your packages and calls changeset publish
publish-script: pnpm release
env:
NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
```
#### Custom Publishing
If you want to hook into when publishing should occur but have your own publishing functionality, you can utilize the `hasChangesets` output.
Note that you might need to account for things already being published in your script because a commit without any new changesets can always land on your base branch after a successful publish. In such a case you need to figure out on your own how to skip over the actual publishing logic or handle errors gracefully as most package registries won't allow you to publish over already published version.
```yml
name: Release
on:
push:
branches:
- main
jobs:
release:
name: Release
runs-on: ubuntu-latest
steps:
- name: Checkout Repo
uses: actions/checkout@v6
- name: Setup pnpm
uses: pnpm/action-setup@v6
- name: Setup Node.js 26
uses: actions/setup-node@v6
with:
node-version: 26
registry-url: https://registry.npmjs.org/ # makes the action set up npm authentication
- name: Install Dependencies
run: pnpm install --frozen-lockfile
- name: Create Release Pull Request or Publish to npm
id: changesets
uses: changesets/action@v2
- name: Publish
if: steps.changesets.outputs.hasChangesets == 'false'
# You can do something when a publish should happen.
run: pnpm publish
env:
NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
```
#### With version script
If you need to add additional logic to the version command, you can do so by using a version script.
If the version script is present, this action will run that script instead of `changeset version`, so please make sure that your script calls `changeset version` at some point. All the changes made by the script will be included in the PR.
```yml
name: Release
on:
push:
branches:
- main
concurrency: ${{ github.workflow }}-${{ github.ref }}
jobs:
release:
name: Release
runs-on: ubuntu-latest
steps:
- name: Checkout Repo
uses: actions/checkout@v6
- name: Setup pnpm
uses: pnpm/action-setup@v6
- name: Setup Node.js 26
uses: actions/setup-node@v6
with:
node-version: 26
- name: Install Dependencies
run: pnpm install --frozen-lockfile
- name: Create Release Pull Request
uses: changesets/action@v2
with:
# this expects you to have a npm script called version that runs some logic and then calls `changeset version`.
version-script: pnpm version
```
#### With Yarn 2 / Plug'n'Play
If you are using [Yarn Plug'n'Play](https://yarnpkg.com/features/pnp), you should use a custom `version` command so that the action can resolve the `changeset` CLI:
```yaml
- uses: changesets/action@v2
with:
version-script: yarn changeset version
# ...
```