build_test.yml

name: builds and ships to test PYPI

on:
  push:
    tags:
    - 'v__*'

jobs:
  build:
    name: Build wheels on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    environment: TEST_PYPI_API_TOKEN
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
        python-version: ['3.9']
    steps:
    - uses: actions/checkout@v2

    - uses: actions/setup-python@v2
      with:
          python-version: ${{ matrix.python-version }}
    
    - name: Upgrade pip
      run: |
            pip install --upgrade pip
            pip install --upgrade build

    - name: run tests
      run: python setup.py test
    
    - name: Install wheels
      run: pip install wheel
    
    - name: Build wheels
      run: python setup.py sdist bdist_wheel
    
    - name: Postprint
      run: echo '--------post---------'; ls dist
      
    - name: Install twine
      run: python -m pip install twine

    - name: Upload to TestPyPI
      env:
        TWINE_USERNAME: __token__
        TWINE_PASSWORD: ${{ secrets.TEST_PYPI_API_TOKEN }}
        TWINE_REPOSITORY: testpypi
        skip_existing: true
      run: python -m twine upload --skip-existing --verbose dist/*        
      
    - uses: actions/upload-artifact@v2
      with:
        path: ./dist/*.whl