breaking-change-description-title-update.yml

name: "Update Breaking Change With Conventional Commits"
on:
  pull_request:
    types:
      - opened
      - reopened
      - edited
      - synchronize

# cancel redundant builds
concurrency:
  group: "update-breaking-change-${{ github.ref }}"
  cancel-in-progress: true

jobs:
  update_pr:
    # we want this to only run on breaking-release PRs
    if: contains(github.head_ref, 'release-please') != true && contains(github.head_ref, 'breaking-release') == true
    runs-on: ubuntu-latest
    steps:
      - uses: 8BitJonny/gh-get-current-pr@3
        with:
          sha: ${{ github.event.pull_request.head.sha }}
        id: PR
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - run: |
          pr_body=$(cat << EOF
          ${{ steps.PR.outputs.pr_body }}
          EOF
          )
          delimiter="Changelog picked up from commits here:"
          cleaned_body="${pr_body%${delimiter}*}"
          cleaned_body_without_trailing_space="$(python .github/remove_trailing_space.py "${cleaned_body}")"
          conventional_commits="$(git log --pretty=format:"%B"  origin/main..HEAD | grep -Pio '^(build|chore|ci|docs|feat|fix|perf|refactor|revert|style|test|¯\\_\(ツ\)_\/¯)(\(\w+\)?((?=:\s)|(?=!:\s)))?(!)?(:\s.*)?(\n\n.*)?$' | grep ':' || true)"
          title="$(python .github/breaking_change_title.py "${conventional_commits}")"
          echo "CONVENTIONAL_TITLE=${title}" >> $GITHUB_ENV
          remaining_commits="$(python .github/breaking_change_description.py "${conventional_commits}")"
          echo "MODIFIED_BODY<<EOF" >> $GITHUB_ENV
          echo "${cleaned_body_without_trailing_space}" >> ${GITHUB_ENV}
          if [ ${#remaining_commits} -gt 0 ]; then
            echo "" >> ${GITHUB_ENV}
            echo "${delimiter}" >> ${GITHUB_ENV}
            echo "" >> ${GITHUB_ENV}
            echo "${remaining_commits}" >> $GITHUB_ENV
          fi
          echo 'EOF'>> $GITHUB_ENV
      - uses: tzkhan/pr-update-action@v2
        with:
          repo-token: "${{ secrets.GITHUB_TOKEN }}"
          # added this though it isn't used
          base-branch-regex: '[a-z\d-_.\\/]+'
          body-template: |
            ${{ env.MODIFIED_BODY }}
          body-update-action: 'replace'
          body-uppercase-base-match: false
          title-update-action: 'replace'
          title-template: ${{ env.CONVENTIONAL_TITLE }}