name: ci

on:
  push:
  schedule:
  - cron: '7 4 * * 4'  # weekly on thursday morning

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v1
    - name: Set up Python 3.8
      uses: actions/setup-python@v1
      with:
        python-version: 3.8
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install pipenv
        pipenv install --dev --deploy
    - name: Formatting
      run: |
        # check that the source files are formatted correctly
        pipenv run yapf -q *.py
    - name: Linting
      run: |
        pipenv run mypy *.py
        pipenv run pylint *.py