rev-path 
Create a revved file path
Install
$ npm install --save rev-path
Usage
var revPath = require('rev-path');
var hash = 'bb9d8fe615'
var path = revPath('src/unicorn.png', hash);
//=> 'src/unicorn-bb9d8fe615.png'
revPath('src/unicorn.png', Date.now());
//=> 'src/unicorn-1432309925925.png'
// you can also revert an already hashed path
revPath.revert(path, hash);
//=> 'src/unicorn.png'License
MIT © Sindre Sorhus