.github/workflows/release-notes.yml

name: Changelog
on:
  issues:
    types: [closed,reopened]
  push:
    branches:
      - '[1-9]+.[0-9]+.x'
  workflow_dispatch:
jobs:
  release_notes:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Check if it has release drafter config file
        id: check_release_drafter
        run: |
          has_release_drafter=$([ -f .github/release-drafter.yml ] && echo "true" || echo "false")
          echo ::set-output name=has_release_drafter::${has_release_drafter}
      - name: Extract branch name
        id: extract_branch
        run: echo ::set-output name=value::${GITHUB_REF:11}
      # If it has release drafter:
      - uses: release-drafter/release-drafter@v5
        if: steps.check_release_drafter.outputs.has_release_drafter == 'true'
        env:
          GITHUB_TOKEN: ${{ secrets.GH_TOKEN }}
        with:
          commitish: ${{ steps.extract_branch.outputs.value }}
      # Otherwise:
      - name: Export Gradle Properties
        if: steps.check_release_drafter.outputs.has_release_drafter == 'false'
        uses: micronaut-projects/github-actions/export-gradle-properties@master
      - uses: micronaut-projects/github-actions/release-notes@master
        if: steps.check_release_drafter.outputs.has_release_drafter == 'false'
        id: release_notes
        with:
          token: ${{ secrets.GH_TOKEN }}
      - uses: ncipollo/release-action@v1
        if: steps.check_release_drafter.outputs.has_release_drafter == 'false' && steps.release_notes.outputs.generated_changelog == 'true'
        with:
          allowUpdates: true
          commit: ${{ steps.release_notes.outputs.current_branch }}
          draft: true
          name: ${{ env.title }} ${{ steps.release_notes.outputs.next_version }}
          tag: v${{ steps.release_notes.outputs.next_version }}
          bodyFile: CHANGELOG.md
          token: ${{ secrets.GH_TOKEN }}