Speeding up the asset pipeline

gistfile1.txt

gem 'rails', '3.1.0.rc4', :git => "git://github.com/rails/rails", :branch => "3-1-stable"

# Bundle edge Rails instead:
# gem 'rails',     :git => 'git://github.com/rails/rails.git'

gem 'pg'

# Asset template engines
gem 'sass', :git => "git://github.com/nex3/sass.git"
gem 'sprockets', :git => "git://github.com/xn/sprockets.git"
gem 'coffee-script', :git => "git://github.com/wycats/ruby-coffee-script.git"

gem 'uglifier'

gem 'haml', :git => "git://github.com/cheald/haml.git"
gem "haml-rails"
gem 'jquery-rails'
gem "barista", :git => "git://github.com/brainopia/barista.git"