.github/workflows/tree-analyze.yml

name: Tree Analyze

on:
  pull_request:
    branches: [master]
  merge_group:
    branches: [master]

jobs:
  Tree_analyze:
    permissions:
      contents: read
    runs-on: ubuntu-latest
    timeout-minutes: 130

    steps:
      # Note: we must check out the tree for the composite action to be available
      - name: Checkout code
        if: env.ACT != 'true'
        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
        with:
          fetch-depth: 0
          ref: ${{ github.event.pull_request.head.sha || github.sha }}

      - name: Checkout code (act local)
        if: env.ACT
        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3

      - name: Check Engine Changes
        id: check_engine
        run: |
          # 1. Determine local base tracking SHA
          if [ "${{ github.event_name }}" = "pull_request" ]; then
            BASE_REF="${{ github.event.pull_request.base.sha }}"
          elif [ "${{ github.event_name }}" = "merge_group" ]; then
            BASE_REF="${{ github.event.merge_group.base_sha }}"
          else
            BASE_REF="origin/master"
          fi

          echo "Comparing against base SHA: $BASE_REF"

          # 2. Get the changed files using the helper script
          CHANGED_FILES=$(.github/scripts/git_files_changed.sh "$BASE_REF")
          echo "Changed files in this branch:"
          echo "$CHANGED_FILES"

          # 3. Check if any file matches engine pattern using the helper script:
          if [ "$(echo "$CHANGED_FILES" | .github/scripts/did_engine_change.sh)" = "true" ]; then
            echo "Engine file changed - forced to wait for Linux linux_host_engine"
            echo "changed=true" >> "$GITHUB_OUTPUT"
          else
            echo "changed=false" >> "$GITHUB_OUTPUT"
          fi

      - name: Wait for test check-in
        if: steps.check_engine.outputs.changed == 'true' && env.ACT != 'true'
        uses: lewagon/wait-on-check-action@9312864dfbc9fd208e9c0417843430751c042800
        with:
          ref: ${{ github.event.pull_request.head.sha || github.sha }}
          check-name: 'Linux linux_host_engine'
          repo-token: ${{ secrets.GITHUB_TOKEN }}
          wait-interval: 30 # seconds
          checks-discovery-timeout: 3600 # Wait up to 1 hour for LUCI to register the check
          allowed-conclusions: success,neutral
          verbose: false

      - name: Redirect engine.version
        if: steps.check_engine.outputs.changed == 'true' && github.event_name == 'pull_request'
        run: echo "FLUTTER_REALM=flutter_archives_v2" >> $GITHUB_ENV

      - uses: ./.github/actions/composite-flutter-setup

      - name: Run Analyze
        run: |
          SHARD=analyze LUCI_CI=true dart --enable-asserts dev/bots/test.dart