name: build
on:
  push:
    branches:
      - master
  pull_request:
    branches:
      - master
jobs:
  lint:
    name: lint
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-python@v2
      - run: python -m pip install --upgrade pip wheel
      - run: pip install tox tox-gh-actions
      - run: tox -eflake8
      - run: tox -edocs
  tests:
    name: tests
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
        python: ['3.6', '3.7', '3.8', '3.9', 'pypy3']
        exclude:
          # pypy3 currently fails to run on Windows
          - os: windows-latest
            python: pypy3
          # the loop fails to close in the Mac version of 3.9
          - os: macos-latest
            python: '3.9'
      fail-fast: false
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-python@v2
        with:
          python-version: ${{ matrix.python }}
      - run: python -m pip install --upgrade pip wheel
      - run: pip install tox tox-gh-actions
      - run: tox
  coverage:
    name: coverage
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-python@v2
      - run: python -m pip install --upgrade pip wheel
      - run: pip install tox tox-gh-actions codecov
      - run: tox
      - run: codecov