var generate = require('babel-core/lib/babel/generation')
var babel = require('babel-core')
var fs = require('fs')
var beautify = require('js-beautify').js_beautify

var code = fs.readFileSync('code.js', 'utf8');
var ast = babel.parse(code);
var result = generate(ast,{}, code);
var code = beautify(result.code, {indent_size: 2})

console.log(code);