avoid running Sass compilation twice

middleman-core/lib/middleman-core/cli/build.rb

@@ -185,9 +185,7 @@ module Middleman::Cli
 
       @app.sitemap.resources.select do |resource|
         resource.ext == '.css'
-      end.each do |resource|
+      end.each(&method(:build_resource))
-        @rack.get(URI.escape(resource.destination_path))
-      end
 
       logger.debug '== Checking for Compass sprites'
 
@@ -210,25 +208,29 @@ module Middleman::Cli
       end
 
       # Loop over all the paths and build them.
-      resources.each do |resource|
+      resources.reject do |resource|
-        next if @config[:glob] && !File.fnmatch(@config[:glob], resource.destination_path)
+        resource.ext == '.css'
-
+      end.each(&method(:build_resource))
-        output_path = render_to_file(resource)
-
-        if should_clean? && output_path.exist?
-          if RUBY_PLATFORM =~ /darwin/
-            # handle UTF-8-MAC filename on MacOS
-
-            @to_clean.delete(output_path.realpath.to_s.encode('UTF-8', 'UTF-8-MAC'))
-          else
-            @to_clean.delete(output_path.realpath)
-          end
-        end
-      end
 
       ::Middleman::Profiling.report('build')
     end
 
+    def build_resource(resource)
+      return if @config[:glob] && !File.fnmatch(@config[:glob], resource.destination_path)
+
+      output_path = render_to_file(resource)
+
+      if should_clean? && output_path.exist?
+        if RUBY_PLATFORM =~ /darwin/
+          # handle UTF-8-MAC filename on MacOS
+
+          @to_clean.delete(output_path.realpath.to_s.encode('UTF-8', 'UTF-8-MAC'))
+        else
+          @to_clean.delete(output_path.realpath)
+        end
+      end
+    end
+
     # Render a resource to a file.
     #
     # @param [Middleman::Sitemap::Resource] resource