Clean Capistrano deploy file with bundler + rvm + permissions restore

sample_deploy.rb

# *** RVM CONFIGURATION ***
set :rvm_ruby_string, "ree-1.8.7-2012.02@#####"
set :rvm_type, :system
before 'deploy:setup', 'rvm:install_rvm'   # install RVM
before 'deploy:setup', 'rvm:install_ruby'  # install Ruby and create gemset, or:

require 'rvm/capistrano'
require "bundler/capistrano"

set :application, "#######"
set :rails_env, "production"

set :repository,  "##################.git"
set :scm, "git"
set :scm_verbose, true
set :branch, "master"

server "ratts.com.br", :web, :app, :db, :primary => true
set :user, "root"
set :use_sudo, false
set :deploy_to, "/var/www/#{application}"
set :shared_children, shared_children + %w( config/database.yml .rvmrc )

default_run_options[:pty] = true

after "deploy:restart", "deploy:cleanup"
after "deploy:restart", "deploy:restore_permissions"

namespace :deploy do
  task :start do ; end
  task :stop do ; end
  task :restart, :roles => :app, :except => { :no_release => true } do
    run "#{try_sudo} touch #{File.join(current_path,'tmp','restart.txt')}"
  end

  task :restore_permissions, :roles => :app, :except => { :no_release => true } do
    run "#{try_sudo} chown -R www-data:www-data #{latest_release}"
  end
end