Heroku: Compass, Sass and Haml

gistfile1.rb

##
# Inside: Rails.root/config/compass.rb
css_dir = "tmp/stylesheets/compiled"

##
# Inside: Rails.root/config/initializers/compass.rb
require 'fileutils'
FileUtils.mkdir_p(Rails.root.join("tmp", "stylesheets", "compiled"))

##
# Inside: Rails.root/config.ru
use Rack::Static, :urls => ["/stylesheets/compiled"], :root => "tmp" 

##
# Add the above "Rack::Static" line between the following two lines:
require ::File.expand_path('../config/environment',  __FILE__)
run TestCompass::Application