compass.rb

# This is a really simple Sinatra extension to make it easy to use compass.
# Its configuration isn't all that great, but its usage is:
#
# require 'sinatra/compass'
# get "/main.css" do
#  compass :main
# end

require 'sinatra/base'

module Sinatra
  module CompassTemplates
    module Helpers
      def compass(template, options={}, locals={})
        options = options.merge(:sass => Compass.sass_engine_options.merge(options[:sass]))
        sass template, options, locals
      end
    end

    def self.registered(app)
      app.helpers CompassTemplates::Helpers

      Compass.configuration do |config|
        # I'm not sure if the app configuration is done at this point..
        # Is there a way to watch for future changes to app.views and update
        # compass when that happens? Does it even matter (i.e. can I drop this
        # config block)?
        config.project_path = app.root
        config.sass_dir = app.views
      end
    end
  end

  register CompassTemplates
end