release.yml

# Based on a packaging guide at https://packaging.python.org/en/latest/guides/publishing-package-distribution-releases-using-github-actions-ci-cd-workflows/
name: Release

on:
  push:
    tags: ["v*"]
  workflow_dispatch:

jobs:
  build:
    name: Build distribution
    runs-on: ubuntu-latest

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

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.9'

      - name: Install pypa/build
        run: |
          python3 -m pip install build

      - name: Build a binary wheel and a source tarball
        run: |
          python3 -m build

      - name: Store the distribution packages
        uses: actions/upload-artifact@v4
        with:
          name: python-package-distributions
          path: dist/

  publish-to-testpypi:
    name: Publish distribution to TestPyPI
    needs: [build]
    runs-on: ubuntu-latest

    environment:
      name: test-release
      url: https://test.pypi.org/p/defer-imports

    permissions:
      id-token: write  # IMPORTANT: mandatory for trusted publishing

    steps:
    - name: Download all the dists
      uses: actions/download-artifact@v4
      with:
        name: python-package-distributions
        path: dist/

    - name: Publish package distributions to TestPyPI
      uses: pypa/gh-action-pypi-publish@release/v1
      with:
        repository-url: https://test.pypi.org/legacy/

  publish-to-pypi:
    name: Publish distribution to PyPI
    needs: [publish-to-testpypi]
    runs-on: ubuntu-latest

    environment:
      name: release
      url: https://pypi.org/p/defer-imports

    permissions:
      id-token: write  # IMPORTANT: mandatory for trusted publishing

    steps:
    - name: Download all the dists
      uses: actions/download-artifact@v4
      with:
        name: python-package-distributions
        path: dist/

    - name: Publish package distributions to PyPI
      uses: pypa/gh-action-pypi-publish@release/v1

  release-on-github:
    name: Upload distributions to GitHub Release
    needs: [publish-to-pypi]
    runs-on: ubuntu-latest

    permissions:
      contents: write  # IMPORTANT: mandatory for making GitHub Releases

    steps:
    - name: Download all the dists
      uses: actions/download-artifact@v4
      with:
        name: python-package-distributions
        path: dist/

    - name: Create GitHub Release
      env:
        GITHUB_TOKEN: ${{ github.token }}
      run: >-
        gh release create
        '${{ github.ref_name }}'
        --repo '${{ github.repository }}'
        --notes ""

    - name: Upload artifacts to GitHub Release
      env:
        GITHUB_TOKEN: ${{ github.token }}
      run: >-
        gh release upload
        '${{ github.ref_name }}' dist/**
        --repo '${{ github.repository }}'