angular-cli/packages/angular_devkit/core/node/fs.ts

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { statSync } from 'fs';

export namespace fs {
  export function isFile(filePath: string): boolean {
    let stat;
    try {
      stat = statSync(filePath);
    } catch (e) {
      if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) {
        return false;
      }
      throw e;
    }

    return stat.isFile() || stat.isFIFO();
  }


  export function isDirectory(filePath: string): boolean {
    let stat;
    try {
      stat = statSync(filePath);
    } catch (e) {
      if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) {
        return false;
      }
      throw e;
    }

    return stat.isDirectory();
  }

}