angular__angular/tools/gulp/tasks/default.ts

import {task} from 'gulp';
import {yellow} from 'chalk';

task('default', ['help']);

task('help', function() {
  console.log();
  console.log('Please specify a gulp task you want to run.');
  console.log(`You're probably looking for ${yellow('test')} or ${yellow('serve:devapp')}.`);
  console.log();
});