linters.yaml

name: "linters"
on:
  pull_request:
    branches:
      - develop

concurrency:
  # Probably overly cautious group naming.
  # Commits to develop/master will cancel each other, but PRs will only cancel
  # commits within the same PR
  group: "${{ github.ref }}-${{ github.head_ref }}-${{ github.workflow }}"
  cancel-in-progress: true

defaults:
  run:
    shell: bash -l {0}

jobs:
  darker_lint:
    if: "github.repository == 'MDAnalysis/mdanalysis'"
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
    defaults:
      run:
        shell: bash

    steps:
    - uses: actions/checkout@v3
      with:
        fetch-depth: 0

    - uses: actions/setup-python@v4
      with:
        python-version: 3.9

    - name: darker-main-code
      id: darker-main-code
      uses: akaihola/darker@1.6.1
      continue-on-error: true
      with:
        version: "~=1.6.1"
        options: "--check --diff --color"
        src: "./package/MDAnalysis"
        revision: "HEAD^"
        lint: "flake8"

    - name: darker-test-code
      id: darker-test-code
      uses: akaihola/darker@1.6.1
      continue-on-error: true
      with:
        version: "~=1.6.1"
        options: "--check --diff --color"
        src: "./testsuite/MDAnalysisTests"
        revision: "HEAD^"
        lint: "flake8"

    - name: get-pr-info
      uses: actions/github-script@v6
      with:
        script:
            const prNumber = context.payload.number;
            core.exportVariable('PULL_NUMBER', prNumber);

    - name: save-status
      env:
        MAIN: ${{ steps.darker-main-code.outcome }}
        TEST: ${{ steps.darker-test-code.outcome }}
      shell: python
      run: |
        import os
        import json
        from pathlib import Path

        Path('./darker_results/').mkdir(exist_ok=True)

        d = {
            'main_stat': os.environ['MAIN'],
            'test_stat': os.environ['TEST'],
            'PR_NUM': os.environ['PULL_NUMBER'],
            'RUN_ID': os.environ['GITHUB_RUN_ID'],
        }

        with open('darker_results/status.json', 'w') as f:
            json.dump(d, f)

    - name: check-json
      run: cat darker_results/status.json

    - name: upload-status
      uses: actions/upload-artifact@v3
      with:
        name: darkerlint
        path: darker_results/
        retention-days: 1


  pylint_check:
    if: "github.repository == 'MDAnalysis/mdanalysis'"
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3

    - uses: actions/setup-python@v4
      with:
        python-version: 3.9

    - name: install
      run: |
        python -m pip install pylint

    - name: pylint
      env:
        PYLINTRC: package/.pylintrc
      run: |
        pylint package/MDAnalysis && pylint testsuite/MDAnalysisTests


  mypy :
    if: "github.repository == 'MDAnalysis/mdanalysis'"
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      - name: setup_miniconda
        uses: conda-incubator/setup-miniconda@v2
        with:
          python-version: 3.9
          auto-update-conda: true
          channel-priority: flexible
          channels: conda-forge, bioconda
          add-pip-as-python-dependency: true
          use-mamba: true
          miniforge-variant: Mambaforge
          architecture: x64

      - name: install_deps
        uses: ./.github/actions/setup-deps
        with:
          mamba: true
          full-deps: true
          numpy: numpy=1.21.0

      - name: install
        run: |
          python -m pip install mypy

      - name: "Run mypy"
        run: |
          mypy package/MDAnalysis/