.github/actions/wait-for-engine-build/action.yml

name: 'Wait for Engine Build'
description: 'Wait for an engine build and redirect engine.version if engine files changed'
inputs:
  github-token:
    description: 'GitHub token'
    required: true
  check-name:
    description: 'The name of the check to wait on'
    required: false
    default: 'Linux linux_host_engine'
  check-regexp:
    description: 'Filter checks using regex pattern'
    required: false
    default: ''
runs:
  using: "composite"
  steps:
    - name: Check Engine Changes
      id: check_engine
      uses: ./.github/actions/has-engine-changes

    - name: Skip LUCI wait on forks
      if: steps.check_engine.outputs.changed == 'true' && github.repository != 'flutter/flutter' && env.ACT != 'true'
      shell: bash
      env:
        REPO_NAME: ${{ github.repository }}
      run: |
        echo "Skipping LUCI engine build wait on fork repository '$REPO_NAME' (flutter_archives_v2 is only built on flutter/flutter)."
        echo "FLUTTER_STRICT_ENGINE_VERSION=false" >> $GITHUB_ENV # zizmor: ignore[github-env]

    - name: Log wait requirement
      if: steps.check_engine.outputs.changed == 'true' && github.repository == 'flutter/flutter'
      shell: bash
      env:
        INPUTS_CHECK_NAME: ${{ inputs.check-name }}
        INPUTS_CHECK_REGEXP: ${{ inputs.check-regexp }}
      run: |
        echo "Engine file changed - forced to wait for check-name: '${INPUTS_CHECK_NAME}', check-regexp: '${INPUTS_CHECK_REGEXP}'"

    # Note: Use the Cocoon wait-for-tests action to poll the Cocoon API.
    - name: Wait for test check-in
      if: steps.check_engine.outputs.changed == 'true' && github.repository == 'flutter/flutter' && env.ACT != 'true'
      uses: flutter/cocoon/packages/wait_for_tests@c82f779e201b2d22f43b531268cfbd2ce4fbd4ab
      with:
        sha: ${{ github.event.pull_request.head.sha || github.sha }}
        repo: ${{ github.repository }}
        required-tests: ${{ inputs.check-name }}

    - name: Redirect engine.version - Realm
      if: steps.check_engine.outputs.changed == 'true' && github.repository == 'flutter/flutter' && github.event_name == 'pull_request'
      shell: bash
      run: echo "FLUTTER_REALM=flutter_archives_v2" >> $GITHUB_ENV # zizmor: ignore[github-env]

    - name: Redirect engine.version - Prebuilt Engine Version
      if: steps.check_engine.outputs.changed == 'true' && github.repository == 'flutter/flutter' && github.event_name == 'pull_request'
      shell: bash
      run: echo "FLUTTER_PREBUILT_ENGINE_VERSION=$HEAD_SHA" >> $GITHUB_ENV # zizmor: ignore[github-env]
      env:
        HEAD_SHA: ${{ github.event.pull_request.head.sha }}