check-which-tests-to-run.yaml

name: Check which tests to run

env:
  WEAVE_QUERY_PATHS: 'weave_query/'
  CORE_INTEGRATION_PATHS: 'weave-js/ weave_query/'
  # Everything else is implicitly trace server

jobs:
  check:
    runs-on: ubuntu-latest
    outputs:
      weave_query_tests: ${{ steps.weave_query.outputs.run_tests }}
      core_integration_tests: ${{ steps.core_integration.outputs.run_tests }}
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0
          fetch-tags: true
          ref: ${{ github.head_ref }}
      - run: git fetch origin ${{ github.base_ref }}
      - run: |
          if [ "${{ 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
      - id: weave_query
        run: |
          for path in ${{ env.WEAVE_QUERY_PATHS }}; do
            if echo "$changed_files" | grep -q "$path"; then
              echo "run_tests=true" >> $GITHUB_OUTPUT
              exit 0
            fi
          done
          echo "run_tests=false" >> $GITHUB_OUTPUT
      - id: core_integration
        run: |
          for path in ${{ env.CORE_INTEGRATION_PATHS }}; do
            if echo "$changed_files" | grep -q "$path"; then
              echo "run_tests=true" >> $GITHUB_OUTPUT
              exit 0
            fi
          done
          echo "run_tests=false" >> $GITHUB_OUTPUT