Get rid of some extraneous sitemap refreshes

middleman-core/lib/middleman-core/sitemap/extensions/ignores.rb

@@ -61,10 +61,6 @@ module Middleman::Sitemap::Extensions
         elsif block_given?
           @ignored_callbacks << block
         end
-
-        if @ignored_callbacks.size > original_callback_size
-          @app.sitemap.rebuild_resource_list!(:added_ignore_rule)
-        end
       end
 
       # Whether a path is ignored
@@ -74,13 +70,6 @@ module Middleman::Sitemap::Extensions
         path_clean = ::Middleman::Util.normalize_path(path)
         @ignored_callbacks.any? { |b| b.call(path_clean) }
       end
-
-      # Update the main sitemap resource list
-      # @return [void]
-      def manipulate_resource_list(resources)
-        # No op
-        resources
-      end
     end
   end
 end

middleman-core/lib/middleman-core/sitemap/extensions/proxies.rb

@@ -48,7 +48,9 @@ module Middleman::Sitemap::Extensions
       
       def get_source_file
         if proxy?
-          store.find_resource_by_path(proxied_to).source_file
+          proxy_resource = store.find_resource_by_path(proxied_to)
+          raise "Path #{path} proxies to unknown file #{proxied_to}" unless proxy_resource
+          proxy_resource.source_file
         end
       end
     end

middleman-core/lib/middleman-core/sitemap/store.rb

@@ -29,11 +29,6 @@ module Middleman::Sitemap
       
       # Proxies
       register_resource_list_manipulator(:proxies, @app.proxy_manager, false)
-      
-      # Ignores
-      register_resource_list_manipulator(:ignores, @app.ignore_manager, false)
-      
-      rebuild_resource_list!(:after_base_init)
     end
 
     # Register a klass which can manipulate the main site map list