Compress sass files with a single pass by moving the compression step to

the generation step and only compressing files with 3 ore more lines in them.

Author: chriseppstein

lib/sass/rails/compressor.rb

@@ -4,11 +4,15 @@ module Sass
   module Rails
     class CssCompressor
       def compress(css)
-        Sass::Engine.new(css,
-                         :syntax => :scss,
-                         :cache => false,
-                         :read_cache => false,
-                         :style => :compressed).render
+        if css.count("\n") > 2
+          Sass::Engine.new(css,
+                           :syntax => :scss,
+                           :cache => false,
+                           :read_cache => false,
+                           :style => :compressed).render
+        else
+          css
+        end
       end
     end
   end

lib/sass/rails/railtie.rb

@@ -66,7 +66,7 @@ module SassContext
 
     initializer :setup_compression, :group => :all do |app|
       if app.config.assets.compress
-        # Use sass's css_compressor
+        app.config.sass.style = :compressed
         app.config.assets.css_compressor = CssCompressor.new
       end
     end