Copy compressor settings in after initializer

Author: josh

lib/sprockets/railtie.rb

@@ -28,15 +28,10 @@ def assets
           env.append_path(path)
         end
 
-        env.js_compressor  = config.assets.js_compressor
-        env.css_compressor = config.assets.css_compressor
-
         env.context_class.class_eval do
           include ::Sprockets::Rails::Helper
         end
       end
-
-      @assets
     end
     attr_writer :assets
   end
@@ -100,6 +95,9 @@ def configure(&block)
         end
       end
 
+      app.assets.js_compressor  = app.config.assets.js_compressor
+      app.assets.css_compressor = app.config.assets.css_compressor
+
       # Run app.assets.configure blocks
       app.config.assets._blocks.each do |block|
         block.call app.assets

test/test_railtie.rb

@@ -87,6 +87,18 @@ def test_copies_paths
       env.paths.sort
   end
 
+  def test_compressors
+    app.configure do
+      config.assets.js_compressor  = :uglifier
+      config.assets.css_compressor = :sass
+    end
+    app.initialize!
+
+    assert env = app.assets
+    assert_equal Sprockets::UglifierCompressor, env.js_compressor
+    assert_equal Sprockets::SassCompressor, env.css_compressor
+  end
+
   def test_configure
     app.configure do
       config.assets.configure do |env|