Function emptyDirectory

bin/express-cli.js:381–386

* Check if the given directory `dir` is empty. * * @param {String} dir * @param {Function} fn

(dir, fn)

 */

function emptyDirectory (dir, fn) {
  fs.readdir(dir, function (err, files) {
    if (err && err.code !== 'ENOENT') throw err
    fn(!files || !files.length)
  })
}

/**
 * Graceful exit for async STDIO