release.yml

name: Publish to PyPI and Release

on:
  push:
    tags:
      - "v*"

permissions:
  contents: write

jobs:
  release:
    runs-on: ubuntu-latest
    if: github.repository == 'jmrplens/PyOctaveBand'
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.13"

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install build twine

      - name: Validate tag version
        id: version
        run: |
          PACKAGE_VERSION=$(python - <<'PY'
          import ast
          from pathlib import Path

          version_file = Path("src/pyoctaveband/_version.py")
          module = ast.parse(version_file.read_text(encoding="utf-8"))

          for node in module.body:
              if isinstance(node, ast.Assign):
                  for target in node.targets:
                      if isinstance(target, ast.Name) and target.id == "__version__":
                          print(ast.literal_eval(node.value))
                          raise SystemExit(0)

          raise SystemExit("Unable to find __version__ in src/pyoctaveband/_version.py")
          PY
          )
          TAG_VERSION="${GITHUB_REF_NAME#v}"

          if [ "$PACKAGE_VERSION" != "$TAG_VERSION" ]; then
            echo "::error::Tag ${GITHUB_REF_NAME} does not match package version ${PACKAGE_VERSION}"
            exit 1
          fi

          echo "version=$PACKAGE_VERSION" >> "$GITHUB_OUTPUT"
          echo "tag=$GITHUB_REF_NAME" >> "$GITHUB_OUTPUT"

      - name: Build package
        run: python -m build

      - name: Check package
        run: python -m twine check dist/*

      - name: Publish to PyPI
        env:
          TWINE_USERNAME: __token__
          TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }}
        run: python -m twine upload dist/*

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ steps.version.outputs.tag }}
          name: Release ${{ steps.version.outputs.tag }}
          body: |
            Automated release for version ${{ steps.version.outputs.version }}
          draft: false
          prerelease: false
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}