action.yaml

name: 'Changie release'
description: 'Create a changie release'
branding:
  icon: 'award'
  color: 'green'

inputs:
  github-token:
    description: 'The GitHub token'
    required: true

  changie-version:
    description: 'The version of changie to use'
    required: false
    default: 'latest'

  version-command:
    description: 'Command to set the version in the package'
    required: false

  release-workflow:
    description: "Name of the release workflow to trigger"
    required: false
  
  pull-request-labels:
    description: "Comma separated or newline-separated list of labels to add to the pull request"
    required: false

runs:
  using: "composite"
  steps:

    # When changelog is update, notes are added and unreleased drafts are
    # deleted we can safely assume that we need to do a release
    - uses: dorny/paths-filter@v3
      id: changes
      with:
        filters: |
          changelog:
            - added|modified: CHANGELOG.md
          notes:
            - added: .changes/*.md
          unreleased:
            - deleted: .changes/unreleased/*.yaml

    # Define two output variables:
    #  - create_release: true if there are open changes, false otherwise
    #  - is_release: true if this push is the result of a release. Combines
    #    the status of the changelog, notes and unreleased checks for ease
    - name: Check for changelog items
      id: status
      shell: bash
      run: |
        if find .changes/unreleased/ -name '*.yaml' | grep .;  then
          echo "create_release=true" >> $GITHUB_OUTPUT
          echo "is_release=false" >> $GITHUB_OUTPUT
        else
          echo "create_release=false" >> $GITHUB_OUTPUT
          echo "is_release=${IS_RELEASE}" >> $GITHUB_OUTPUT
        fi
      env:
        IS_RELEASE: ${{ steps.changes.outputs.changelog == 'true' && steps.changes.outputs.notes == 'true' && steps.changes.outputs.unreleased == 'true' }}

    - name: Output changes
      if: steps.status.outputs.create_release == 'true'
      uses: miniscruff/changie-action@v2
      id: changelog
      with:
        version: ${{ inputs.changie-version }}
        args: batch --dry-run auto

    - name: Batch changes
      if: steps.status.outputs.create_release == 'true'
      uses: miniscruff/changie-action@v2
      with:
        version: ${{ inputs.changie-version }}
        args: batch auto

    - name: Merge changes
      if: steps.status.outputs.create_release == 'true'
      uses: miniscruff/changie-action@v2
      with:
        version: ${{ inputs.changie-version }}
        args: merge

    - name: Get the latest version
      id: latest
      if: steps.status.outputs.create_release == 'true' || steps.status.outputs.is_release == 'true'
      uses: miniscruff/changie-action@v2
      with:
        version: ${{ inputs.changie-version }}
        args: latest

    - name: Set the version in the package
      if: inputs.version-command && steps.status.outputs.create_release == 'true'
      run: ${{ inputs.version-command }}
      shell: bash
      env:
        PACKAGE_VERSION: ${{ steps.latest.outputs.output }}

    - name: Create Pull Request
      uses: peter-evans/create-pull-request@v7
      if: steps.status.outputs.create_release == 'true'
      with:
        title: Release ${{ steps.latest.outputs.output }}
        branch: release/${{ steps.latest.outputs.output }}
        commit-message: Release ${{ steps.latest.outputs.output }}
        token: ${{ inputs.github-token }}
        labels: ${{ inputs.pull-request-labels }}
        body: |
          This PR was created by the [Changie release GitHub action](https://github.com/labd/changie-release-action). When you're ready to do a release, you can merge this and the tag ${{ steps.latest.outputs.output }} will be created${{ inputs.release-workflow != '' && format(' and the {0} workflow will be started', inputs.release-workflow) || '' }}.  If you're not ready to do a release yet, that's fine, whenever you add more changes to main, this PR will be updated.

          # Releases
          ${{ steps.changelog.outputs.output }}

    - name: Create tag
      if: steps.status.outputs.is_release == 'true'
      uses: actions/github-script@v7
      env:
        VERSION: ${{ steps.latest.outputs.output }}
      with:
        github-token: ${{ inputs.github-token }}
        script: |
          github.rest.git.createRef({
            owner: context.repo.owner,
            repo: context.repo.repo,
            ref: `refs/tags/${process.env.VERSION}`,
            sha: context.sha
          })

    - name: Create GitHub release
      if: steps.status.outputs.is_release == 'true'
      uses: actions/github-script@v7
      env:
        VERSION: ${{ steps.latest.outputs.output }}
        GITHUB_RELEASE_BODY: ${{ steps.changelog.outputs.output }}
      with:
        github-token: ${{ inputs.github-token }}
        retries: 3
        script: |
          github.rest.repos.createRelease({
            owner: context.repo.owner,
            repo: context.repo.repo,
            name: process.env.VERSION,
            body: process.env.GITHUB_RELEASE_BODY,
            tag_name: process.env.VERSION,
            draft: false,
          })

    # We need to manually trigger a release workflow since GitHub actions cannot
    # automatically trigger other GitHub actions.
    - name: Trigger release
      if: steps.status.outputs.is_release == 'true' && inputs.release-workflow != ''
      shell: bash
      run: gh workflow run ${{ inputs.release-workflow }} --ref ${{ steps.latest.outputs.output }}
      env:
        GH_TOKEN: ${{ inputs.github-token }}