Download and extract tarballs

gistfile1.js

var request = require('request');
var zlib    = require('zlib');
var tar     = require('tar');

var url = 'https://github.com/Shogun147/Katana/tarball/master';
var path = __dirname + '/katana';

request({ url: url }).pipe(zlib.createUnzip()).pipe(tar.Extract({ path: path }))
.on('end', function() {
  console.log('Done!');
});