which-tests-to-run.yaml

name: Determine which tests to run

on:
  push:
  pull_request:
  workflow_call:
    outputs:
      should_run_query_tests:
        description: 'Whether query tests should run'
        value: ${{ jobs.check_paths.outputs.should_run_query_tests }}

env:
  QUERY_SERVICE_PATHS: 'weave-js/ weave_query/'

jobs:
  check_paths:
    runs-on: ubuntu-latest
    outputs:
      should_run_query_tests: ${{ steps.query_service.outputs.should_run_query_tests }}
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0
          fetch-tags: true
          ref: ${{ github.head_ref }}
      - run: git fetch origin ${{ github.base_ref }}
      - id: query_service
        run: |
          if [ "${{ github.event_name }}" = "pull_request" ]; then
            base_sha=$(git rev-parse origin/${{ github.base_ref }})
            head_sha=$(git rev-parse HEAD)
            changed_files=$(git diff --name-only $base_sha $head_sha)
          else
            changed_files=$(git diff --name-only HEAD^)
          fi

          for path in ${{ env.QUERY_SERVICE_PATHS }}; do
            if echo "$changed_files" | grep -q "$path"; then
              echo "should_run_query_tests=true" >> $GITHUB_OUTPUT
              exit 0
            fi
          done
          echo "should_run_query_tests=false" >> $GITHUB_OUTPUT