Non-closured-walk

gistfile1.js

var fs = require("fs");
var path = require("path");

var handleReadDirFactory = function (start, callback) {
  var handleReadDir = function (err, files) {
    if (err) return callback(err)
    var dirs = []
      , notDirs = []
      , IL = files.length

    for (i = 0; i < IL; i++) {
      var abspath = path.join(start, files[i]);
      var _stat = fs.lstatSync(abspath);

      if (_stat.isDirectory() && !_stat.isSymbolicLink()) {
        dirs.push(abspath);
        walk(abspath, callback);
      } else {
        notDirs.push(abspath);
      }
    }
    return callback(null, start, dirs, notDirs);
  };

  return handleReadDir;
};

var handleStartStatFactory = function (start, callback) {
  var handleStartStat = function (err, stat) {
    if (err) return callback(err)

    if (stat.isDirectory() && !stat.isSymbolicLink()) {
      fs.readdir(start, handleReadDirFactory(start, callback));
    } else {
      return callback(new Error("path: " + start + " is not a directory"));
    }
  };
  return handleStartStat;
};


var walk = function (start, callback) {
  fs.lstat(start, handleStartStatFactory(start, callback));
};