gistfile1.rb

require 'uglifier'
require 'yaml'

desc 'Create bundle file'
task :bundle do
  main_file = File.expand_path('../index.js', __FILE__)
  YAML.load(File.open('bundles.yml')).each do |name, opts|
    flags = []
    if (excludes = [opts['excludes']].flatten)
      excludes.each do |exclude|
        flags.push "-x #{exclude}"
      end
    end
    out_file = "#{name}.min.js"
    File.open(out_file, "w:utf-8") do |f|
      f.write Uglifier.compile(
        `browserify #{flags.join(' ')} #{main_file}`)
    end
    puts "Wrote \e[32;1m#{out_file}\e[0m"
  end
end