name: build

on: [push]

jobs:
  build:
    strategy:
      matrix:
        os: [ubuntu-latest, macOS-latest, windows-latest]
        python-version: [3.8]
    runs-on: ${{ matrix.os }}
    env:
      # TODO: remove this when github actions support "if" in expressions
      PYTHON_VERSION: ${{ matrix.python-version }}
      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

    steps:
    - uses: actions/checkout@master
    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@master
      with:
        python-version: ${{ matrix.python-version }}
    - name: Update pip
      run: |
        python -m pip install --upgrade pip
    - name: Lint with flake8
      run: |
        pip install flake8
        # stop the build if there are Python syntax errors or undefined names
        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
    - name: Test with tox
      shell: bash
      run: |
        pip install tox
        # remove the "." in the python version
        tox -e "py${PYTHON_VERSION//.}"
    - name: Upload to codecov
      uses: codecov/codecov-action@v1