http://fb.me/react-js-fiddle-integration.js no longer works, and this causes all old fiddles like http://jsfiddle.net/haa2euy9/1/ to break. We should fix it.
console.log('> ' + [command].concat(args).join(' '));
  var options = {
    cwd: process.cwd(),
    env: process.env,
    stdio: 'pipe',
    encoding: 'utf-8',
  };
  return execFileSync(command, args, options);
}
var mergeBase = exec('git', ['merge-base', 'HEAD', 'master']).trim();
var changedFiles = new Set(
  exec('git', [
    'diff',
    '-z',
    '--name-only',
    '--diff-filter=ACMRTUB',
    mergeBase,
  ]).match(/[^\0]+/g)
);
Object.keys(config).forEach(key => {
  const patterns = config[key].patterns;
  const options = config[key].options;
  const ignore = config[key].ignore;
  const globPattern = patterns.length > 1
    ? `{${patterns.join(',')}}`
    : `${patterns.join(',')}`;
  const files = glob