release.yml

name: Release

on:
  push:
    tags:
      - 'v*'

permissions:
  contents: write

jobs:
  release:
    name: Create Release
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.11'

      - name: Generate Changelog
        run: |
          python - <<'PY'
          import subprocess

          def sh(*args):
              return subprocess.check_output(list(args), text=True).strip()

          try:
              prev_tag = sh('git', 'describe', '--tags', '--abbrev=0', 'HEAD^')
              rev_range = f"{prev_tag}..HEAD"
          except Exception:
              rev_range = 'HEAD'

          commits = sh('git', 'log', '--pretty=format:%s', rev_range).splitlines()
          changelog = '## Changes\n\n' + ''.join(f'- {c}\n' for c in commits if c)

          with open('CHANGELOG_RELEASE.md', 'w', encoding='utf-8') as f:
              f.write(changelog)
          PY

      - name: Create Release
        uses: softprops/action-gh-release@v1
        with:
          body_path: CHANGELOG_RELEASE.md
          generate_release_notes: true
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}