update-copyright-notices.yml

name: Update copyright notices

permissions: {}
on:
  push:
    branches:
      - main
  pull_request:
    types:
      - closed

jobs:
  check-and-update-copyright-notices:
    if: >-
      github.repository_owner == 'jamulussoftware' &&
      github.event_name == 'push'
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
      contents: write
    steps:
      - uses: actions/checkout@v3
      - run: ./tools/update-copyright-notices.sh
      - env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          git config --global user.email "actions@github.com"
          git config --global user.name "github-actions[bot]"
          pr_branch=updateCopyrightNotices
          git checkout -b ${pr_branch}
          git add .
          git commit -m "AUTO: Update copyright notices for $(date +%Y)" || exit 0
          git push origin "+${pr_branch}"
          existing_pr=$(gh pr list --head "${pr_branch}" --json number --jq '.[].number')
          if [[ $existing_pr ]]; then
            gh pr comment "${existing_pr}" --body "PR has been updated by tools/update-copyright-notices.sh."
          else
            body=$'This automated Pull Request updates the copyright notices throughout the source.\n\n'
            body="${body}This PR is the result of a tools/update-copyright-notices.sh run."$'\n\n'
            body="${body}CHANGELOG: SKIP"
            gh pr create --base main --head "${pr_branch}" --title "Update copyright notice(s) for $(date +%Y)" --body "${body}"
          fi

  delete-old-pr-branch:
    if: >-
      github.repository_owner == 'jamulussoftware' &&
      github.event_name == 'pull_request' &&
      startsWith(github.event.pull_request.head.label, 'jamulussoftware:updateCopyrightNotices')
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
      contents: write
    steps:
      - uses: actions/checkout@v3
      - env:
          pr_branch: ${{ github.event.pull_request.head.ref }}
        run: |
          [[ ${pr_branch} == updateCopyrightNotices ]] || exit 1
          git push origin :${pr_branch}