 	assert.isFunction callback
 
 	BUNDLE_FILE_PATH = __dirname + "/bundle.#{utils.uid()}.tmp.js"
+
+	unless opts.verbose
+		log.enabled = log.ERROR
 
 	logtime = log.time 'Resolve bundle modules'
 	fs.writeFileSync BUNDLE_FILE_PATH, "(#{processFile})()"

uglify = require 'uglify-js'
Module = require 'module'

{utils, log, assert} = Neft

processFile = require './process'
buildResult = require './result'

			cleaner.write bundle
			bundle = cleaner.toString()
			log.end logtime
		else
			bundle = bundle.replace ///<production>([^]*?)<\/production>///gm, ''

		if opts.minify
			logtime = log.time 'Minimalize'
			fs.writeFileSync './tmp.js', bundle, 'utf-8'

			cp.exec "uglifyjs " +
			"./tmp.js " +
			"--screw-ie8 " +
			"--compress negate_iife=false,keep_fargs " +
