name: Check Version Bump

on:
  pull_request:
    types: [ opened, synchronize ]

jobs:
  check-version-bump:
    runs-on: ubuntu-24.04
    steps:
    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
      with:
        fetch-depth: 0

    - name: Check git log
      run: |
        echo "## Check for 'Version bump' commit" >${GITHUB_STEP_SUMMARY}
        subj=$(git log --format=%s $(git describe --abbrev=0 --tags).. | tail -1)
        if ! expr "$subj" : 'Version bump' >/dev/null
        then
          echo "❌ No 'Version bump' commit immediately after release tag" | tee -a ${GITHUB_STEP_SUMMARY}
          exit 2
        fi