Basic Rails 3.1 integration.

lib/compass/app_integration/rails.rb

@@ -24,8 +24,10 @@ module Compass
       end
 
       def configuration
-        Compass::Configuration::Data.new('rails').
+        config = Compass::Configuration::Data.new('rails')
-          extend(ConfigurationDefaults)
+        config.extend(ConfigurationDefaults)
+        config.extend(ConfigurationDefaultsWithAssetPipeline) if Sass::Util.ap_geq?('3.1.0.beta')
+        config
       end
 
       def env
@@ -48,12 +50,17 @@ module Compass
         end
       end
 
-      def initialize!(config = nil)
+      def check_for_double_boot!
         if booted?
-          Compass::Util.compass_warn("Warning: Compass was booted twice. Compass has a Railtie now; please remove your intializer.")
+          Compass::Util.compass_warn("Warning: Compass was booted twice. If you're using Rails 3, Compass has a Railtie now; please remove your compass intializer.")
         else
           booted!
         end
+      end
+
+      # Rails 2.x projects use this in their compass initializer.
+      def initialize!(config = nil)
+        check_for_double_boot!
         config ||= Compass.detect_configuration_file(root)
         Compass.add_project_configuration(config, :project_type => :rails)
         Compass.discover_extensions!

lib/compass/app_integration/rails/actionpack2x.rb

@@ -0,0 +1,10 @@
+%w(action_controller sass_plugin urls).each do |lib|
+  require "compass/app_integration/rails/actionpack2x/#{lib}"
+end
+
+# Wierd that this has to be re-included to pick up sub-modules. Ruby bug?
+class Sass::Script::Functions::EvaluationContext
+  include Sass::Script::Functions
+  private
+  include ActionView::Helpers::AssetTagHelper
+end

lib/compass/app_integration/rails/actionpack30.rb

@@ -0,0 +1,11 @@
+# TODO figure something out so image_path works with rails integration
+%w(railtie).each do |lib|
+  require "compass/app_integration/rails/actionpack30/#{lib}"
+end
+
+# Wierd that this has to be re-included to pick up sub-modules. Ruby bug?
+class Sass::Script::Functions::EvaluationContext
+  include Sass::Script::Functions
+  private
+  include ActionView::Helpers::AssetTagHelper
+end

lib/compass/app_integration/rails/actionpack30/railtie.rb

@@ -40,7 +40,10 @@ module Compass
     initializer "compass.initialize_rails" do |app|
       # Configure compass for use within rails, and provide the project configuration
       # that came via the rails boot process.
-      Compass::AppIntegration::Rails.initialize!(app.config.compass)
+      Compass::AppIntegration::Rails.check_for_double_boot!
+      Compass.discover_extensions!
+      Compass.configure_sass_plugin!
+      Compass.handle_configuration_change!
     end
   end
 end

lib/compass/app_integration/rails/actionpack31.rb

@@ -0,0 +1,5 @@
+# TODO figure something out so image_path works with rails integration
+%w(railtie).each do |lib|
+  require "compass/app_integration/rails/actionpack31/#{lib}"
+end
+

lib/compass/app_integration/rails/actionpack31/railtie.rb

@@ -0,0 +1,50 @@
+require 'compass'
+require 'rails'
+
+class Rails::Railtie::Configuration
+  # Adds compass configuration accessor to the application configuration.
+  #
+  # If a configuration file for compass exists, it will be read in and
+  # the project's configuration values will already be set on the config
+  # object.
+  #
+  # For example:
+  #
+  #     module MyApp
+  #       class Application < Rails::Application
+  #          config.compass.line_comments = !Rails.env.production?
+  #          config.compass.fonts_dir = "app/assets/fonts"
+  #       end
+  #     end
+  #
+  # It is suggested that you create a compass configuration file if you
+  # want a quicker boot time when using the compass command line tool.
+  #
+  # For more information on available configuration options see:
+  # http://compass-style.org/help/tutorials/configuration-reference/
+  def compass
+    @compass ||= begin
+      data = if (config_file = Compass.detect_configuration_file) && (config_data = Compass.configuration_for(config_file))
+        config_data
+      else
+        Compass::Configuration::Data.new("rails_config")
+      end
+      data.project_type = :rails # Forcing this makes sure all the rails defaults will be loaded.
+      Compass.add_project_configuration(data)
+      data
+    end
+    @compass
+  end
+end
+
+module Compass
+  class Railtie < Rails::Railtie
+    initializer "compass.initialize_rails" do |app|
+      # Configure compass for use within rails, and provide the project configuration
+      # that came via the rails boot process.
+      Compass::AppIntegration::Rails.check_for_double_boot!
+      Compass.discover_extensions!
+      Compass.configure_rails!(app)
+    end
+  end
+end

lib/compass/app_integration/rails/configuration_defaults.rb

@@ -1,6 +1,28 @@
 module Compass
   module AppIntegration
     module Rails
+
+      module ConfigurationDefaultsWithAssetPipeline
+        # These methods overwrite the old rails defaults
+        # when rails 3.1 is detected.
+
+        def default_sass_dir
+          File.join("app", "assets", "stylesheets")
+        end
+
+        def default_images_dir
+          File.join("app", "assets", "images")
+        end
+
+        def default_fonts_dir
+          File.join("app", "assets", "fonts")
+        end
+
+        def default_javascripts_dir
+          File.join("app", "assets", "javascripts")
+        end
+      end
+
       module ConfigurationDefaults
 
         def project_type_without_default
@@ -8,11 +30,7 @@ module Compass
         end
 
         def default_sass_dir
-          if Sass::Util.ap_geq?('3.1.0.beta')
+          File.join("app", "stylesheets")
-            File.join("app", "assets", "stylesheets")
-          else
-            File.join("app", "stylesheets")
-          end
         end
 
         def default_css_dir
@@ -28,11 +46,7 @@ module Compass
         end
 
         def default_javascripts_dir
-          if Sass::Util.ap_geq?('3.1.0.beta')
+          File.join("public", "javascripts")
-            File.join("app", "assets", "javascripts")
-          else
-            File.join("public", "javascripts")
-          end
         end
 
         def default_http_images_path

lib/compass/app_integration/rails/runtime.rb

@@ -3,25 +3,15 @@ unless defined?(Compass::RAILS_LOADED)
   begin
     require 'action_pack/version'
     if ActionPack::VERSION::MAJOR >= 3
-      # TODO figure something out so image_path works with rails integration
+      if ActionPack::VERSION::MINOR < 1
-      %w(railtie).each do |lib|
+        require 'compass/app_integration/rails/actionpack30'
-        require "compass/app_integration/rails/actionpack3/#{lib}"
+      else
+        require 'compass/app_integration/rails/actionpack31'
       end
     else
-      %w(action_controller sass_plugin urls).each do |lib|
+      require 'compass/app_integration/rails/actionpack2x'
-        require "compass/app_integration/rails/actionpack2/#{lib}"
-      end
     end
-  rescue LoadError => e
+  rescue LoadError, NameError
     $stderr.puts "Compass could not access the rails environment."
-  rescue NameError => e
-    $stderr.puts "Compass could not access the rails environment."
-  end
-  
-  # Wierd that this has to be re-included to pick up sub-modules. Ruby bug?
-  class Sass::Script::Functions::EvaluationContext
-    include Sass::Script::Functions
-    private
-    include ActionView::Helpers::AssetTagHelper
   end
 end

lib/compass/configuration/helpers.rb

@@ -77,6 +77,12 @@ module Compass
         end
       end
 
+      def configure_rails!(app)
+        app.config.compass.to_sass_engine_options.each do |key, value|
+          app.config.sass.send(:"#{key}=", value)
+        end
+      end
+
       def sass_engine_options
         configuration.to_sass_engine_options
       end