config.ru for running CakePHP apps under Pow. Includes an app/webroot rewrite and some other things from the rack-legacy example.

config.ru

require 'rack'
require 'rack-legacy'
require 'rack-rewrite'

webroot = File.join(Dir.getwd,'app','webroot')

use Rack::Rewrite do
  rewrite %r{/(.*)}, lambda { |match, rack_env|
  	File.exists?(File.join(webroot,match[1])) ? File.join('app','webroot',match[1]) : '/app/webroot/index.php/%s' % match[1]
  }
  rewrite '/', 'index.php'
end if File.exists?(webroot)

use Rack::ShowExceptions
use Rack::Legacy::Index
use Rack::Legacy::Php, Dir.getwd
use Rack::Static, :urls => %w{/css /files /img /js /favicon.ico}, :root => webroot
run Rack::File.new Dir.getwd

Hice nice one, but which directory should i save this config file