text: /**
   * Copyright (c) 2015-present, Facebook, Inc.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   */
  'use strict';
  
  const fs = require('fs');
  const path = require('path');
  
  function walk(current) {
    if (!fs.lstatSync(current).isDirectory()) {
      return [current];
    }
  
    const files = fs.readdirSync(current).map(child => {
      child = path.join(current, child);
      return walk(child);
    });
    return [].concat.apply([current], files);
  }
  
  module.exports = walk;
  