text: /**
   * Copyright 2020 The AMP HTML Authors. All Rights Reserved.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS-IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  'use strict';
  
  /**
   * @fileoverview
   * This script runs performance tests.
   * This is run during the CI stage = experiment; job = performance tests.
   */
  
  const {
    downloadNomoduleOutput,
    startTimer,
    stopTimer,
    timedExecOrDie,
  } = require('./utils');
  const {setLoggingPrefix} = require('../common/logging');
  
  const jobName = 'performance-tests.js';
  
  async function main() {
    setLoggingPrefix(jobName);
    const startTime = startTimer(jobName);
  
    downloadNomoduleOutput(jobName);
    timedExecOrDie('gulp update-packages');
    timedExecOrDie('gulp performance --nobuild --quiet --headless');
  
    stopTimer(jobName, startTime);
  }
  
  main();
  