name: Build for macOS

on:
  - push
  - pull_request

jobs:
  build_wheels:
    name: Build wheel on macOS
    runs-on: macos-latest

    steps:
      - uses: actions/checkout@v2

      - uses: actions/setup-python@v2
        name: Install Python 3.9
        with:
          python-version: "3.9"

      - uses: actions/setup-python@v1
        name: Install Python 3.8
        with:
          python-version: "3.8"

      - uses: actions/setup-python@v1
        name: Install Python 3.7
        with:
          python-version: "3.7"

      - uses: actions/setup-python@v1
        name: Install Python 3.6
        with:
          python-version: "3.6"

      - name: Install cibuildwheel
        run: |
          python -m pip install cibuildwheel==1.3.0

      - name: Checkout submodules
        shell: bash
        run: |
          git submodule sync --recursive
          git submodule update --init --force --recursive --depth=1

      - name: Install dependencies
        run: |
          pip install -r requirements-dev.txt

      - name: Test for Python 3.9
        run: |
          tox -e py39

      - name: Test for Python 3.8
        run: |
          tox -e py38

      - name: Test for Python 3.7
        run: |
          tox -e py37

      - name: Test for Python 3.6
        run: |
          tox -e py36

      - name: Build wheel
        if: contains(github.ref, 'tags/')
        run: |
          python -m cibuildwheel --output-dir wheelhouse
        env:
          CIBW_BUILD: cp36-* cp37-* cp38-* cp39-*

      - uses: actions/upload-artifact@v1
        if: contains(github.ref, 'tags/')
        with:
          name: wheels
          path: ./wheelhouse