conditional-test.yml

name: Conditional Testing

on:
  pull_request:
    branches: ["**"]

jobs:
  check_changes:
    runs-on: ubuntu-latest
    outputs:
      changed_extensions: ${{ steps.set_changed.outputs.changed_extensions }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
        with:
          fetch-depth: 0 # Fetch all history for all branches and tags
          ref: ${{ github.head_ref }} # Ensure PR's head is checked out
      - name: Get changed directories
        id: set_changed
        run: |
          echo "::group::Determining Changed Directories"
          DIRECTORIES="auth-mailchimp-sync delete-user-data firestore-bigquery-export firestore-counter firestore-send-email firestore-shorten-urls-bitly firestore-translate-text rtdb-limit-child-nodes storage-resize-images"

          # Set commit SHAs for comparison
          BASE_SHA=${{ github.event.pull_request.base.sha }}
          HEAD_SHA=${{ github.event.pull_request.head.sha }}

          # Initialize an empty JSON array
          CHANGED_EXTENSIONS_JSON="["

          if ! git diff --name-only $BASE_SHA $HEAD_SHA > /dev/null 2>&1; then
            echo "Error detecting changes using PR base and head SHAs, falling back to default branch comparison."
            git fetch --no-tags --depth=1 origin +refs/heads/next:refs/remotes/origin/next
            BASE_SHA=$(git rev-parse origin/next)
          fi

          first_entry=true
          for dir in $DIRECTORIES; do
            if git diff --name-only $BASE_SHA $HEAD_SHA | grep -q "^$dir/"; then
              if [ "$first_entry" = true ]; then
                first_entry=false
              else
                CHANGED_EXTENSIONS_JSON+=", "
              fi
              CHANGED_EXTENSIONS_JSON+="\"$dir\""
            fi
          done

          CHANGED_EXTENSIONS_JSON+="]"

          # Output the JSON array to the workflow
          echo "changed_extensions=$CHANGED_EXTENSIONS_JSON" >> $GITHUB_OUTPUT
          echo "Changed extensions: $CHANGED_EXTENSIONS_JSON"
          echo "::endgroup::"

  test_extensions:
    needs: check_changes
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        extension:
          ${{ fromJson(needs.check_changes.outputs.changed_extensions) }}
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-node@v3
        with:
          node-version: "18"
          cache: "npm"
          cache-dependency-path: "**/package-lock.json"
      - name: Install Firebase CLI
        uses: nick-invision/retry@v1
        with:
          timeout_minutes: 10
          retry_wait_seconds: 60
          max_attempts: 3
          command: npm i -g firebase-tools@13

      - name: Setup e2e secrets
        run: |
          echo SMTP_PASSWORD=${{ secrets.SENDGRID_API_KEY }} >> _emulator/extensions/firestore-send-email-sendgrid.secret.local

      - run: npm install -g rimraf
      - run: cd ${{ matrix.extension }}/functions && npm install
      - run: cd ${{ matrix.extension }}/functions && npm run build
      - run: node scripts/changeFirebaseJson.cjs ${{ matrix.extension }}
      - name: Start Firebase Emulator
        run: cd _emulator && firebase emulators:start &
      - run:
          export CI_TEST=true && GOOGLE_CLOUD_PROJECT=demo-test && cd ${{
          matrix.extension }}/functions && npm run testIfEmulatorRunning