python-library-release.yml

name: python-library-release

on:
  workflow_call:

jobs:
  bump-and-release:
    runs-on: ubuntu-latest
    permissions:
      contents: write

    steps:
      - uses: actions/checkout@v6
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - uses: actions/setup-python@v6
        with:
          python-version: '3.x'

      - name: Bump patch version in setup.py
        id: bump
        run: |
          python3 - <<'EOF'
          import re, os

          with open("setup.py", "r") as f:
              content = f.read()

          match = re.search(r"version='(\d+\.\d+\.\d+)'", content)
          if not match:
              raise ValueError("Could not find version string in setup.py")

          current = match.group(1)
          major, minor, patch = current.split(".")
          new_version = f"{major}.{minor}.{int(patch) + 1}"

          updated = content.replace(f"version='{current}'", f"version='{new_version}'")

          with open("setup.py", "w") as f:
              f.write(updated)

          print(f"Bumped: {current} -> {new_version}")

          with open(os.environ["GITHUB_OUTPUT"], "a") as out:
              out.write(f"old_version={current}\n")
              out.write(f"new_version={new_version}\n")
          EOF

      - name: Commit bumped version
        run: |
          git config user.name  "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add setup.py
          git commit -m "chore: bump version to ${{ steps.bump.outputs.new_version }} [skip ci]"
          git push

      - name: Create Git tag
        run: |
          git tag "v${{ steps.bump.outputs.new_version }}"
          git push origin "v${{ steps.bump.outputs.new_version }}"

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v3
        with:
          tag_name: "v${{ steps.bump.outputs.new_version }}"
          name: "v${{ steps.bump.outputs.new_version }}"
          body: |
            Automatically released on push to `main`.

            ### Install this version
            ```bash
            python3 -m pip install git+https://github.com/${{ github.repository }}.git@v${{ steps.bump.outputs.new_version }}
            ```

            ### Always use latest
            ```bash
            python3 -m pip install --upgrade git+https://github.com/${{ github.repository }}.git@main
            ```
          draft: false
          prerelease: false