bump-version.yml

name: Bump Version

on:
  release:
    types: [ released ]
  workflow_dispatch:
    inputs:
      release_tag:
        description: 'Use release notes of'
        type: string
        required: false

jobs:
  bump-version:

    name: Bump version and update changelog
    runs-on: ubuntu-latest

    steps:
    # Setup environment
    - name: Checkout repository
      uses: actions/checkout@v4
    - name: Set up JDK 17
      uses: actions/setup-java@v4
      with:
        java-version: 17
        distribution: temurin
    # Fail if the release was not triggered from the master branch
    - name: Verify branch
      if: github.event_name == 'release'
      run: |
        if \
          git fetch --depth=1 origin refs/heads/master && \
          [ "$(git show-ref -s refs/heads/master)" != "$(git show-ref -s HEAD)" ]
        then
          msg="The release does not point to the master branch. This means the"
          msg="$msg branch has been updated after the release, or the release"
          msg="$msg was created on a different branch. Please trigger this"
          msg="$msg workflow manually on the correct branch."
          echo "::error::$msg"
          exit 1
        fi
    # Setup cache
    - name: Setup cache for Gradle and dependencies
      uses: actions/cache@v4
      with:
        path: |
          ~/.gradle/caches
          ~/.gradle/wrapper
        key: "gradle-\
          ${{runner.os}}-\
          ${{hashFiles('gradle/wrapper/gradle-wrapper.properties')}}-\
          ${{hashFiles('gradle.properties', '**/*.gradle.kts')}}"
    # Update files
    - name: Obtain release notes
      uses: actions/github-script@v7
      with:
        script: |
          await require('.github/scripts/get-release-notes.js')({
            github, context, core,
            outputFile: 'release_note.md',
            releaseTagInput: 'release_tag',
            allowFallbackToLatest: true,
          });
    - name: Update files with Gradle
      run: ./gradlew --stacktrace metadata patchChangelog --release-note="$(<release_note.md)" bumpVersion
    # Commit and push
    - name: Commit files
      run: |
        version="$(cat build/metadata/version.txt)"
        git -c user.name='github-actions[bot]' \
            -c user.email='41898282+github-actions[bot]@users.noreply.github.com' \
          commit -am "Bump version after releasing v$version"
    - name: Push changes
      env:
        BASE_COMMIT: ${{ github.sha }}
        TARGET_BRANCH: ${{ github.event_name == 'release' && 'refs/heads/master' || github.ref }}
      run: |
        git push origin \
          --force-with-lease="$TARGET_BRANCH:$BASE_COMMIT" \
          "HEAD:$TARGET_BRANCH"