publish.yml

name: Publish

on: 'push'

env:
  DEFAULT_PYTHON: "3.12"

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

    steps:
    - uses: actions/checkout@v4
    - name: Set up Python
      uses: actions/setup-python@v5
      with:
        python-version: ${{ env.DEFAULT_PYTHON }}
        check-latest: true
    - name: Install pypa/build
      run: >-
        python3 -m
        pip install -r requirements.txt
        build
        --user
    - 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/

  check_version:
    name: Check the version
    if: startsWith(github.ref, 'refs/tags/')  # only publish to PyPI on tag pushes
    needs:
      - build
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Extract tag version
        id: extract_tag
        run: |
          TAG_VERSION=${GITHUB_REF#refs/tags/}
          echo "TAG_VERSION=$TAG_VERSION" >> $GITHUB_ENV

      - name: Check tag in package
        run: |
          if ! grep -q "__version__ = \"$TAG_VERSION\"" ./systemctl2mqtt/__init__.py; then
            echo "Error: Tag version $TAG_VERSION not found in the package."
            exit 1
          else
            echo "Success: Tag version $TAG_VERSION found in package."
          fi

      - name: Check changelog entry
        run: |
          if [ github.ref =~ 'refs/tags/[0-9]+\\.[0-9]+\\.[0-9]+$' ]; then
            if ! grep -q "## $TAG_VERSION" CHANGELOG.md; then
              echo "No changelog entry found for version $TAG_VERSION."
              exit 1
            else
              echo "Changelog entry found for version $TAG_VERSION."
            fi
          else
            echo "Pre-release tag, skipping changelog check"
          fi

      - name: Check if version type matches branch type
        run: |
          branch=$(git branch -r --contains ${{ github.ref }} --format "%(refname:lstrip=3)")
          echo "Branch: $branch"
          version=${GITHUB_REF#refs/tags/}
          echo "Version from tag: $version"

          # Check if the version is a prerelease
          if [[ "$version" =~ [a-zA-Z] ]]; then
            echo "Prerelease version detected: $version"
            prerelease=true
          else
            echo "Final release version detected: $version"
            prerelease=false
          fi

          # Fail if it's a prerelease and on the master branch
          if [[ "$branch" == "master" && "$prerelease" == "true" ]]; then
            echo "Error: Prerelease versions are not allowed on the master branch."
            exit 1
          fi

          # Fail if it's a final release on a non-master branch
          if [[ "$branch" != "master" && "$prerelease" == "false" ]]; then
            echo "Error: Final releases are not allowed on non-master branches."
            exit 1
          fi

  publish-to-pypi:
    name: >-
      Publish Python 🐍 distribution 📦 to PyPI
    needs: check_version
    runs-on: ubuntu-latest
    environment:
      name: pypi
      url: https://pypi.org/p/systemctl2mqtt  # Replace <package-name> with your PyPI project name
    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 distribution 📦 to PyPI
      uses: pypa/gh-action-pypi-publish@release/v1

  github-release:
    name: >-
      Create GitHub release and attach binaries
    needs:
    - publish-to-pypi
    runs-on: ubuntu-latest

    permissions:
      contents: write  # IMPORTANT: mandatory for making GitHub Releases
      id-token: write  # IMPORTANT: mandatory for sigstore

    steps:
    - uses: actions/checkout@v4
      with:
        fetch-depth: 1
    - name: Get version
      id: version
      run: |
        TAG_VERSION=${GITHUB_REF#refs/tags/}
        echo "version=$TAG_VERSION" >> $GITHUB_OUTPUT
    - name: Check if version is prerelease
      id: check_prerelease
      run: |
        TAG_VERSION="${{ steps.version.outputs.version }}"
        if [[ "$TAG_VERSION" =~ [a-zA-Z] ]]; then
          echo "prerelease=true" >> $GITHUB_OUTPUT
        else
          echo "prerelease=false" >> $GITHUB_OUTPUT
        fi
    - name: Download all the dists
      uses: actions/download-artifact@v4
      with:
        name: python-package-distributions
        path: dist/
    - name: Sign the dists with Sigstore
      uses: sigstore/gh-action-sigstore-python@v3.0.0
      with:
        inputs: >-
          ./dist/*.tar.gz
          ./dist/*.whl
    - name: Release
      uses: softprops/action-gh-release@v2
      with:
        tag_name: ${{ github.ref }}
        name: Release ${{ steps.version.outputs.version }}
        generate_release_notes: true
        prerelease: ${{ steps.check_prerelease.outputs.prerelease }}  # Mark as prerelease if necessary
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}   
    - name: Upload artifact signatures to GitHub Release
      env:
        GITHUB_TOKEN: ${{ github.token }}
      # Upload to GitHub Release using the `gh` CLI.
      # `dist/` contains the built packages, and the
      # sigstore-produced signatures and certificates.
      run: >-
        gh release upload
        '${{ github.ref_name }}' dist/**
        --repo '${{ github.repository }}'