text: var fs = require( "fs" ),
  	npm = require( "npm" ),
  	sizzleLoc = __dirname + "/../external/sizzle/dist/sizzle.js",
  	rversion = /Engine v(\d+\.\d+\.\d+(?:-[-\.\d\w]+)?)/;
  
  require( "colors" );
  
  /**
   * Retrieve the latest tag of Sizzle from npm
   * @param {Function(string)} callback
   */
  function getLatestSizzle( callback ) {
  	npm.load(function( err, npm ) {
  		if ( err ) {
  			throw err;
  		}
  		npm.commands.info( [ "sizzle", "version" ], function( err, info ) {
  			if ( err ) {
  				throw err;
  			}
  			callback( Object.keys( info )[ 0 ] );
  		});
  	});
  }
  
  /**
   * Ensure the /src folder has the latest tag of Sizzle
   * @param {Object} Release
   * @param {Function} callback
   */
  function ensureSizzle( Release, callback ) {
  	console.log();
  	console.log( "Checking Sizzle version..." );
  	getLatestSizzle(function( latest ) {
  		var match = rversion.exec( fs.readFileSync( sizzleLoc, "utf8" ) ),
  			version = match ? match[ 1 ] : "Not Found";
  
  		if ( version !== latest ) {
  			console.log(
  				"The Sizzle version in the src folder (" + version.red +
  				") is not the latest tag (" + latest.green + ")."
  			);
  			Release.confirm( callback );
  		} else {
  			console.log( "Sizzle is latest (" + latest.green + ")" );
  			callback();
  		}
  	});
  }
  
  module.exports = ensureSizzle;
  