name: Install pkg

# see: https://help.github.com/en/actions/reference/events-that-trigger-workflows
on:  # Trigger the workflow on push or pull request, but only for the master branch
  push:
    branches: [master]
  pull_request:
    branches: [master]

jobs:

  pkg-install:
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      # max-parallel: 6
      matrix:
        # PyTorch 1.5 is failing on Win and bolts requires torchvision>=0.5
        os: [ubuntu-20.04, macOS-10.15 , windows-2019]  #
        python-version: [3.6, 3.8]

    steps:
      - uses: actions/checkout@master
      - uses: actions/setup-python@v2
        with:
          python-version: ${{ matrix.python-version }}

      - name: Prepare env
        run: |
          pip install check-manifest "twine==1.13.0"

      - name: Create package
        run: |
          check-manifest
          # python setup.py check --metadata --strict
          python setup.py sdist

      - name: Check package
        run: |
          twine check dist/*
          python setup.py clean

      - name: Setup Windows
        if: runner.os == 'windows'
        run: |
          # this is just a hotfix because of Win cannot install it directly
          pip install -r requirements.txt --find-links https://download.pytorch.org/whl/cpu/torch_stable.html

      - name: Install package
        run: |
          # pip install virtualenv
          # virtualenv vEnv --system-site-packages
          # source vEnv/bin/activate
          pip install dist/*
          cd .. & python -c "import pytorch_lightning as pl ; print(pl.__version__)"
          # deactivate
          # rm -rf vEnv