name: ci
on: pull_request

jobs:
  format_and_lint:
    name: notebook format and lint
    runs-on: ubuntu-latest
    steps:
    - name: Set up Python
      uses: actions/setup-python@v2
    - name: Fetch pull request branch
      uses: actions/checkout@v2
      with:
        fetch-depth: 0      
    - name: Fetch base master branch
      run: git fetch -u "$GITHUB_SERVER_URL/$GITHUB_REPOSITORY" master:master
    - name: Install requirements
      run: python3 -m pip install -U -r .github/workflows/linter/requirements.txt
    - name: Format and lint notebooks
      run: |
        set +e

        .github/workflows/linter/run_linter.sh -t
        RTN=$?

        if [ "$RTN" != "0" ]; then
          echo "There were problems formatting/linting the notebooks."
          echo "Please run the following commands locally from the root directory to attempt to autofix the issues:"
          echo ""
          echo "python3 -m pip install -U -r .github/workflows/linter/requirements.txt"
          echo ".github/workflows/linter/run_linter.sh"
          echo ""
          echo "If it can't be autofixed, please fix them manually."
          echo "Then, commit the fixes and push again."
          exit 1
        fi