[Configuration] The sass cache location can now be set in the compass config file using the cache_dir property and the cache can be disabled by setting cache = false.

lib/compass/app_integration/rails/configuration_defaults.rb

@@ -36,7 +36,11 @@ module Compass
         end
 
         def default_extensions_dir
-          "vendor/plugins/compass/extensions"
+          File.join("vendor", "plugins", "compass", "extensions")
+        end
+
+        def default_cache_dir
+          File.join("tmp", "sass-cache")
         end
 
       end

lib/compass/app_integration/stand_alone/configuration_defaults.rb

@@ -21,6 +21,10 @@ module Compass
         def images_dir_without_default
           "images"
         end
+
+        def default_cache_dir
+          ".sass-cache"
+        end
       end
 
     end

lib/compass/configuration.rb

@@ -29,6 +29,8 @@ module Compass
       :relative_assets,
       :additional_import_paths,
       :sass_options,
+      attributes_for_directory(:cache, nil),
+      :cache,
       # Helper configuration
       :asset_host,
       :asset_cache_buster,

lib/compass/configuration/adapters.rb

@@ -19,6 +19,8 @@ module Compass
         plugin_opts = {:template_location => locations}
         plugin_opts[:style] = output_style if output_style
         plugin_opts[:line_comments] = line_comments
+        plugin_opts[:cache] = cache
+        plugin_opts[:cache_location] = cache_path
         plugin_opts.merge!(sass_options || {})
         plugin_opts
       end
@@ -42,6 +44,8 @@ module Compass
         engine_opts = {:load_paths => sass_load_paths}
         engine_opts[:style] = output_style if output_style
         engine_opts[:line_comments] = line_comments
+        engine_opts[:cache] = cache
+        engine_opts[:cache_location] = cache_path
         engine_opts.merge!(sass_options || {})
       end
 

lib/compass/configuration/defaults.rb

@@ -74,6 +74,12 @@ module Compass
         end
       end
 
+      def default_cache_path
+        if (pp = top_level.project_path) && (dir = top_level.cache_dir)
+          File.join(pp, dir)
+        end
+      end
+
 
       def default_http_images_dir
         top_level.images_dir
@@ -111,6 +117,10 @@ module Compass
         http_root_relative top_level.http_javascripts_dir
       end
 
+      def default_cache
+        true
+      end
+
       # helper functions
 
       def http_join(*segments)