validate.yml

name: Validate Tools

on:
  pull_request:
    paths:
      - 'tools/**'

jobs:
  detect-changes:
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.detect.outputs.matrix }}
      has_changes: ${{ steps.detect.outputs.has_changes }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - id: detect
        name: Detect changed tool directories
        run: |
          # Note: github.base_ref is only available on pull_request events
          # Find all tool directories that changed in this PR, keeping only
          # those that still exist (deleted tool dirs must not be linted/tested).
          CHANGED=$(git diff --name-only origin/${{ github.base_ref }}...HEAD -- 'tools/' \
            | grep -oP 'tools/[^/]+/[^/]+/[^/]+/' \
            | sort -u \
            | while read -r dir; do [ -d "$dir" ] && echo "$dir"; done \
            | jq -R -s -c 'split("\n") | map(select(length > 0))')

          if [ "$CHANGED" = "[]" ] || [ -z "$CHANGED" ]; then
            echo "has_changes=false" >> "$GITHUB_OUTPUT"
            echo "matrix=[]" >> "$GITHUB_OUTPUT"
          else
            echo "has_changes=true" >> "$GITHUB_OUTPUT"
            echo "matrix=$CHANGED" >> "$GITHUB_OUTPUT"
          fi

  validate:
    needs: detect-changes
    if: needs.detect-changes.outputs.has_changes == 'true'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-python@v5
        with:
          python-version: '3.11'

      - name: Create shared venv and install dependencies
        run: |
          python -m venv /tmp/validate_venv
          /tmp/validate_venv/bin/python -m pip install pyopenms numpy scipy click pytest ruff
          DIRS='${{ needs.detect-changes.outputs.matrix }}'
          echo "$DIRS" | jq -r '.[]' | while read -r dir; do
            if [ -f "${dir}requirements.txt" ]; then
              /tmp/validate_venv/bin/python -m pip install -r "${dir}requirements.txt"
            fi
          done

      - name: Lint changed tools
        run: |
          DIRS='${{ needs.detect-changes.outputs.matrix }}'
          echo "$DIRS" | jq -r '.[]' | while read -r dir; do
            if [ -d "$dir" ]; then
              echo "::group::ruff $dir"
              /tmp/validate_venv/bin/python -m ruff check "$dir"
              echo "::endgroup::"
            fi
          done

      - name: Test changed tools
        run: |
          DIRS='${{ needs.detect-changes.outputs.matrix }}'
          echo "$DIRS" | jq -r '.[]' | while read -r dir; do
            if [ -d "${dir}tests/" ]; then
              echo "::group::pytest $dir"
              PYTHONPATH="$dir" /tmp/validate_venv/bin/python -m pytest "${dir}tests/" -v
              echo "::endgroup::"
            fi
          done