recursive read directory and return all files and directories.

readDir.js

var utils = {
    isFile: function(path) {
        var stat = fs.statSync(path);
        return stat ? stat.isFile() : undefined;
    },
    isDir: function(path) {
        var stat = fs.statSync(path);
        return stat ? stat.isDirectory() : undefined;
    },
    readDir: function(dir, callback) {
        var files = [],
            dirs = [];

        _readDir(dir);
        callback(null, {
            files: files,
            dirs: dirs
        });

        function _readDir(dir) {
            var dir = dir.match(/\/$/) ? dir : dir + "/",
                fd = [];

            try {
                fd = fs.readdirSync(dir);
                fd.forEach(function(file){
                    if (utils.isDir(dir + file)) {
                        dirs.push(dir + file);
                        _getMds(dir + file);
                    }
                    else if (utils.isFile(dir + file) {
                        files.push(dir + file);
                    }
                })
            }
            catch (err) {
                callback(err);
            }
        }
    }
}