haystack/.github/workflows/linting.yml

# If you change this name also do it in linting-skipper.yml and ci_metrics.yml
name: Linting

on:
  pull_request:
    paths:
      - "haystack/**/*.py"
      - "test/**/*.py"
      - "e2e/**/*.py"
      - "pyproject.toml"
      - "!haystack/core/**/*.py"

env:
  PYTHON_VERSION: "3.8"

jobs:
  mypy:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          # With the default value of 1, there are corner cases where tj-actions/changed-files
          # fails with a `no merge base` error
          fetch-depth: 0

      - name: Get changed files
        id: files
        uses: tj-actions/changed-files@v41
        with:
          files: |
            **/*.py
          files_ignore: |
            test/**

      - uses: actions/setup-python@v5
        with:
          python-version: ${{ env.PYTHON_VERSION }}

      - name: Install Haystack
        run: pip install .[dev]

      - name: Install the dependencies needed for tests
        run: pip install -r test/test_requirements.txt

      - name: Mypy
        if: steps.files.outputs.any_changed == 'true'
        run: |
          mkdir .mypy_cache
          mypy --install-types --non-interactive --cache-dir=.mypy_cache/ ${{ steps.files.outputs.all_changed_files }}

  pylint:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          # With the default value of 1, there are corner cases where tj-actions/changed-files
          # fails with a `no merge base` error
          fetch-depth: 0

      - name: Get changed files
        id: files
        uses: tj-actions/changed-files@v41
        with:
          files: |
            haystack/**/*.py

      - uses: actions/setup-python@v5
        with:
          python-version: ${{ env.PYTHON_VERSION }}

      - name: Install Haystack and the dependencies needed for tests
        run: pip install -r test/test_requirements.txt

      - name: Pylint
        if: steps.files.outputs.any_changed == 'true'
        run: |
          pylint -ry -j 0 ${{ steps.files.outputs.all_changed_files }}