auto-release.yml

name: "Gitflow: Auto prepare release"
on:
  pull_request:
    types:
      - closed
    branches:
      - master

# This workflow tirggers a release when merging a branch with the pattern `prepare-release/VERSION` into master.
jobs:
  release:
    runs-on: ubuntu-20.04
    name: 'Prepare a new version'

    steps:
      - uses: actions/checkout@v4
        with:
          token: ${{ secrets.GH_RELEASE_PAT }}
          fetch-depth: 0

      # https://github.com/actions-ecosystem/action-regex-match
      - uses: actions-ecosystem/action-regex-match@v2
        id: version-regex
        with:
          # Parse version from head branch
          text: ${{ github.head_ref }}
          # match: preprare-release/xx.xx.xx
          regex: '^prepare-release\/(\d+\.\d+\.\d+)(?:-(alpha|beta|rc)\.\d+)?$'

      - name: Extract version
        id: get_version
        run: |
          version=${{ steps.version-regex.outputs.match }}
          version=${version/'prepare-release/'/''}
          echo "version=$version" >> $GITHUB_OUTPUT

      - name: Prepare release
        uses: getsentry/action-prepare-release@v1
        if: github.event.pull_request.merged == true && steps.version-regex.outputs.match != '' && steps.get_version.outputs.version != ''
        env:
          GITHUB_TOKEN: ${{ secrets.GH_RELEASE_PAT }}
        with:
          version: ${{ steps.get_version.outputs.version }}
          force: false
          merge_target: master
          craft_config_from_merge_target: true