acertmgr/.github/workflows/release.yml

---
name: Build (and release)
on: [ push, pull_request ]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
      with:
        fetch-depth: 0
    - name: Install dependencies
      run: |
        sudo apt update -qq -y
        sudo apt install -qq -y build-essential fakeroot git python-all python3-cryptography python3-stdeb python3-wheel twine

    - name: Prepare build process
      id: buildprep
      run: |
        # Fetch tags and determine version
        git fetch --tags
        VER="$(python3 setup.py --version)"
        echo "Version found: $VER"
        echo "::set-output name=version::$VER"

    - name: Build python package using setuptools (source/wheel)
      run: |
        python3 setup.py sdist --formats=gztar
        python3 setup.py bdist_wheel

    - name: Prepare stdeb build process
      id: stdebprep
      run: |
        # Patch setup.py to allow stdeb proper debian style builds
        sed "s/=determine_version()/='$(python3 setup.py --version)'/gi" -i setup.py
        sed "s@('readme'@('share/doc/python3-acertmgr'@" -i setup.py
        # Determine recommended dependencies for deb package
        echo "::set-output name=recommends3::$(echo "python3-pkg-resources")"
        # Find optional dependencies to suggest in deb package
        echo "::set-output name=suggests3::$(python3 -c "from setup import extra_requirements; print('\n'.join(['\n'.join(x) for x in extra_requirements.values()]))" | grep -v cryptography | sed 's/PyYAML/yaml/gi' | awk '{ printf("python3-%s, ",$1)};' | awk '{$1=$1; print}')"

    - name: Build debian package using setuptools and stdeb
      run: python3 setup.py --command-packages=stdeb.command sdist_dsc --with-python2=False --with-python3=True --recommends3="${{ steps.stdebprep.outputs.recommends3 }}" --suggests3="${{ steps.stdebprep.outputs.suggests3 }}" bdist_deb

    - name: Create a changelog from git log since last non-pre/rc tag
      run: |
        # Determine current tag and last non-rc/pre tag
        CTAG="$(git describe --tags --abbrev=0)"
        LTAG="$(git tag | grep -B1 ${CTAG} | head -n1)"
        while echo $LTAG | grep -q 'rc\|pre'; do
          LTAG="$(git tag | grep -B1 ${LTAG} | head -n1)"
        done
        # Write changelog
        echo "Changes since ${LTAG}:" > changelog.txt
        git log --format=' * %s' ${LTAG}..${CTAG} >> changelog.txt
        cat changelog.txt

    - name: Collect files for artifact upload
      run: |
        mkdir -v artifacts
        cp -v changelog.txt artifacts/
        cp -v dist/*.tar.gz artifacts/
        cp -v dist/*.whl artifacts/
        cp -v deb_dist/*.deb artifacts/
    - name: Upload build artifact
      uses: actions/upload-artifact@v1
      with:
        name: ${{ format('acertmgr_build_{0}', steps.buildprep.outputs.version) }}
        path: artifacts

    - name: Create new GitHub release
      uses: softprops/action-gh-release@v1
      if: startsWith(github.ref, 'refs/tags/')
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        name: ${{ steps.buildprep.outputs.version }}
        draft: true
        prerelease: ${{ contains(github.ref, 'rc') || contains(github.ref, 'pre') }}
        body_path: changelog.txt
        files: |
          artifacts/*.tar.gz
          artifacts/*.whl
          artifacts/*.deb

    - name: Create new PyPI release
      env:
        TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
        TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
      if: "startsWith(github.ref, 'refs/tags/') && (!(contains(github.ref, 'rc') || contains(github.ref, 'pre')))"
      run: |
        if [ "$TWINE_USERNAME" != '' -a "$TWINE_PASSWORD" != '' ]; then
          twine upload dist/*
        fi