mkdir, rmdir and copyDir(deep-copy a directory) in node.js

gistfile1.js

var mkdir = function(dir) {
	// making directory without exception if exists
	try {
		fs.mkdirSync(dir, 0755);
	} catch(e) {
		if(e.code != "EEXIST") {
			throw e;
		}
	}
};

var rmdir = function(dir) {
	if (path.existsSync(dir)) {
		var list = fs.readdirSync(dir);
		for(var i = 0; i < list.length; i++) {
			var filename = path.join(dir, list[i]);
			var stat = fs.statSync(filename);
			
			if(filename == "." || filename == "..") {
				// pass these files
			} else if(stat.isDirectory()) {
				// rmdir recursively
				rmdir(filename);
			} else {
				// rm fiilename
				fs.unlinkSync(filename);
			}
		}
		fs.rmdirSync(dir);
	} else {
		console.warn("warn: " + dir + " not exists");
	}
};

var copyDir = function(src, dest) {
	mkdir(dest);
	var files = fs.readdirSync(src);
	for(var i = 0; i < files.length; i++) {
		var current = fs.lstatSync(path.join(src, files[i]));
		if(current.isDirectory()) {
			copyDir(path.join(src, files[i]), path.join(dest, files[i]));
		} else if(current.isSymbolicLink()) {
			var symlink = fs.readlinkSync(path.join(src, files[i]));
			fs.symlinkSync(symlink, path.join(dest, files[i]));
		} else {
			copy(path.join(src, files[i]), path.join(dest, files[i]));
		}
	}
};

var copy = function(src, dest) {
	var oldFile = fs.createReadStream(src);
	var newFile = fs.createWriteStream(dest);
	util.pump(oldFile, newFile);
};

It seems not working!
I'm using it in express controller. It ends but no with all directory.

Is there any way to go out from that function with all folder copied?

Here's a rendition of copy that lets you move a file across partitions:

const move = (source, destination) => {
  let oldFile = fs.createReadStream(source);
  let newFile = fs.createWriteStream(destination);

  oldFile.pipe(newFile);
  oldFile.on('end', function () {
    fs.unlinkSync(source);
  });
}