linter_test.yaml

name: Linter Tests

# This workflow is triggered on pushes to the repository or external PRs.
on: [push, pull_request]

jobs:
  lint:
    # We want to run on external PRs, but not on our own internal PRs as they'll be run
    # by the push to the branch.
    if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name != 'facebookresearch/mmf'
    strategy:
      fail-fast: false
      max-parallel: 3
      matrix:
        lint: ['flake8', 'ufmt']
    runs-on: ubuntu-latest

    steps:
    - name: Checkout branch 🛎️
      uses: actions/checkout@v2

    - name: Setup Conda Environment
      uses: conda-incubator/setup-miniconda@v2
      with:
        activate-environment: mmf
        python-version: 3.7
        auto-update-conda: true
        use-only-tar-bz2: true

    - name: Install Dependencies
      shell: bash -l {0}
      run: |
        conda activate mmf
        python -m pip install --upgrade pip
        pip install --progress-bar off flake8==3.7.9
        pip install --progress-bar off ufmt==2.0.1
        pip install --progress-bar off usort==1.0.5
        pip install --progress-bar off black==22.12.0

    - name: Run linter
      shell: bash -l {0}
      if: matrix.lint == 'flake8'
      run: |
        conda activate mmf
        flake8 --version
        # stop the build if there are Python syntax errors or undefined names
        flake8 . --count --select=E9,F63,F72,F82 --show-source --statistics
        # exit-zero treats all errors as warnings
        flake8 . --count --exit-zero --max-complexity=18 --max-line-length=88 --statistics

    - name: Run linter
      shell: bash -l {0}
      if: matrix.lint == 'ufmt'
      run: |
        conda activate mmf
        ufmt --version
        ufmt check .