build-and-publish.yml

# https://help.github.com/en/actions/language-and-framework-guides/using-python-with-github-actions#publishing-to-package-registries

name: Build and Publish

on:
  # Triggers the workflow on push events but only for the main branch
  push:
    branches: [ main ]

permissions:
  contents: read

jobs:
  deploy:

    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version: ["3.8"]
    # "PUBLISH-PYPI" or "PUBLISH-TESTPYPI" is treated as a command
    if: "contains(github.event.head_commit.message, 'PUBLISH-')"

    steps:
    - uses: actions/checkout@v3
    
    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v4
      with:
        python-version: ${{ matrix.python-version }}
        cache: 'pip'
        
    # You can test your matrix by printing the current Python version
    - name: Display Python version
      run: python -c "import sys; print(sys.version)"
        
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install build
        pip install flake8 pytest
        # if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
        
    - name: Lint with flake8
      run: |
        # stop the build if there are Python syntax errors or undefined names
        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
        flake8 . --count --exit-zero --max-complexity=15 --max-line-length=127 --statistics
        
    - name: Build package
      run: python -m build --wheel --outdir dist/

    - name: Publish distribution 📦 to Test PyPI
      if: "contains(github.event.head_commit.message, 'PUBLISH-TESTPYPI')"
      uses: pypa/gh-action-pypi-publish@27b31702a0e7fc50959f5ad993c78deac1bdfc29
      with:
        user: __token__
        password: ${{ secrets.TEST_PYPI_API_TOKEN }}
        repository_url: https://test.pypi.org/legacy/
        
    - name: Publish distribution 📦 to PYPI
      if: "contains(github.event.head_commit.message, 'PUBLISH-PYPI')"
      uses: pypa/gh-action-pypi-publish@27b31702a0e7fc50959f5ad993c78deac1bdfc29
      with:
        user: __token__
        password: ${{ secrets.PYPI_API_TOKEN }}