Recursive directory delete written in NodeJS

rm.js

var fs = require('fs');
var util = require('util');

// print process.argv
var dir = process.argv[2];


if (!dir) {
  log('usage script DIR_TO_DELETE');
  process.exit(1);
}

var i = 0;

function log() {
  var args = [].slice.call(arguments);
  util.puts(args);
}

function recursiveDelete(base, current) {
  if (!current) {
    current = base;
  }
}

function removeFile(f) {
  fs.unlinkSync(f);
}

function recursiveDelete(root, dir, dirName) {

  if (root != dir) {
    var newName = root + '/f' + (i++);

    fs.renameSync(dir, newName);

    dir = newName;
  }

  var files = fs.readdirSync(dir);

  files.forEach(function(f) {
    var child = dir + '/' + f;

    var stats = fs.statSync(child);

    if (stats.isDirectory()) {
      recursiveDelete(root, child);
    } else {
      removeFile(child);
    }
  });

  fs.rmdirSync(dir);
}

recursiveDelete(dir, dir);

log('Deleted directory ' + dir);