release.yaml

---
name: "🐍📦 Production build and release"

# GitHub/PyPI trusted publisher documentation:
# https://packaging.python.org/en/latest/guides/publishing-package-distribution-releases-using-github-actions-ci-cd-workflows/

# yamllint disable-line rule:truthy
on:
  # workflow_dispatch:
  push:
    # Only invoked on release tag pushes
    branches:
      - '**'
    tags:
      - 'v*.*.*'

env:
  python-version: "3.10"

### BUILD ###

jobs:

  build:
    name: "🐍 Build packages"
    # Only publish on tag pushes
    if: startsWith(github.ref, 'refs/tags/')
    runs-on: ubuntu-latest
    permissions:
      # IMPORTANT: mandatory for Sigstore
      id-token: write
    steps:
      ### BUILDING ###

      - name: "Checkout repository"
        uses: actions/checkout@v4

      - name: "Setup Python"
        uses: actions/setup-python@v5
        with:
          python-version: ${{ env.python-version }}

      - name: "Setup PDM for build commands"
        uses: pdm-project/setup-pdm@v4

      - name: "Update version from tags for production release"
        run: |
          echo "Github versioning: ${{ github.ref_name }}"
          scripts/release-versioning.sh

      - name: "Build with PDM backend"
        run: |
          pdm build

      ### SIGNING ###

      - name: "Sign packages with Sigstore"
        uses: sigstore/gh-action-sigstore-python@v2.1.1
        with:
          inputs: >-
            ./dist/*.tar.gz
            ./dist/*.whl

      - name: Store the distribution packages
        uses: actions/upload-artifact@v4
        with:
          name: ${{ github.ref_name }}
          path: dist/

  ### PUBLISH GITHUB ###

  github:
    name: "📦 Publish to GitHub"
    # Only publish on tag pushes
    if: startsWith(github.ref, 'refs/tags/')
    needs:
      - build
    runs-on: ubuntu-latest
    permissions:
      # IMPORTANT: mandatory to publish artefacts
      contents: write
    steps:
      - name: "⬇ Download build artefacts"
        uses: actions/download-artifact@v4
        with:
          name: ${{ github.ref_name }}
          path: dist/

      - name: "📦 Publish artefacts to GitHub"
        # https://github.com/softprops/action-gh-release
        uses: softprops/action-gh-release@v2
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          prerelease: false
          tag_name: ${{ github.ref_name }}
          name: "Test/Development Build \
            ${{ github.ref_name }}"
          # body_path: ${{ github.workspace }}/CHANGELOG.rst
          files: |
            dist/*.tar.gz
            dist/*.whl
            dist/*.sigstore

  ### PUBLISH PYPI TEST ###

  testpypi:
    name: "📦 Publish to PyPi Test"
    # Only publish on tag pushes
    if: startsWith(github.ref, 'refs/tags/')
    needs:
      - build
    runs-on: ubuntu-latest
    environment:
      name: testpypi
    permissions:
      # IMPORTANT: mandatory for trusted publishing
      id-token: write
    steps:
      - name: "⬇ Download build artefacts"
        uses: actions/download-artifact@v4
        with:
          name: ${{ github.ref_name }}
          path: dist/

      - name: "Remove files unsupported by PyPi"
        run: |
          if [ -f dist/buildvars.txt ]; then
            rm dist/buildvars.txt
          fi
          rm dist/*.sigstore

      - name: Publish distribution to Test PyPI
        uses: pypa/gh-action-pypi-publish@release/v1
        with:
          repository-url: https://test.pypi.org/legacy/
          verbose: true

  ### PUBLISH PYPI ###

  pypi:
    name: "📦 Publish to PyPi"
    # Only publish on tag pushes
    if: startsWith(github.ref, 'refs/tags/')
    needs:
      - testpypi
    runs-on: ubuntu-latest
    environment:
      name: pypi
    permissions:
      # IMPORTANT: mandatory for trusted publishing
      id-token: write
    steps:
      - name: "⬇ Download build artefacts"
        uses: actions/download-artifact@v4
        with:
          name: ${{ github.ref_name }}
          path: dist/

      - name: "Remove files unsupported by PyPi"
        run: |
          if [ -f dist/buildvars.txt ]; then
            rm dist/buildvars.txt
          fi
          rm dist/*.sigstore

      - name: "Setup PDM for build commands"
        uses: pdm-project/setup-pdm@v4

      - name: "Publish release to PyPI"
        uses: pypa/gh-action-pypi-publish@release/v1
        with:
          verbose: true