name: Python sanity

on: [push, pull_request]

jobs:
  build:

    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        python-version: [2.7, 3.6, 3.7, 3.8]

    steps:
    - uses: actions/checkout@v2
    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v2
      with:
        python-version: ${{ matrix.python-version }}

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

    - name: Lint with flake8
      run: |
        # 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.
        flake8 . --exit-zero \
        | awk -F: '{ gsub(/^[ \t]+/,"",$4); print "::error file=" $1 ",line=" $2 ",col=" $3 "::" $4 }'

    - name: Run tests
      run: |
        coverage run
        coverage report

    - name: Upload coverage report to Codecov
      env:
        CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
      run: |
        coverage xml
        bash <(curl -s https://codecov.io/bash) \
        || echo "::warning ::Codecov upload failed"