name: Python 2 linting

on: [push, pull_request]

jobs:
  pre_job:
    name: Path match check
    runs-on: ubuntu-latest
    # Map a step output to a job output
    outputs:
      should_skip: ${{ steps.skip_check.outputs.should_skip }}
    steps:
      - id: skip_check
        uses: fkirc/skip-duplicate-actions@master
        with:
          github_token: ${{ github.token }}
          paths: '["kolibri/**.py"]'
  lint:
    name: Python 2 syntax checking
    needs: pre_job
    if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - name: Set up Python 2.7
      uses: actions/setup-python@v2
      with:
        python-version: 2.7
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install flake8
    - name: Lint with flake8
      run: |
        flake8 kolibri