Rewrite urls in paths to 'empty:' during build

lib/requirejs/rails/config.rb

@@ -108,6 +108,7 @@ def build_config
           mod['name'] = 'almond'
           mod['include'] = name
         end
+        self.rewrite_urls_in_paths self[:build_config]
       end
       self[:build_config]
     end
@@ -146,5 +147,13 @@ def asset_allowed?(asset)
         accum || (matcher =~ asset)
       end ? true : false
     end
+
+    def rewrite_urls_in_paths(cfg)
+      if cfg.has_key? 'paths'
+        cfg['paths'] = cfg['paths'].each_with_object({}) do |(k, v), h|
+          h[k] = (v =~ /^https?:/) ? 'empty:' : v
+        end
+      end
+    end
   end
 end

test/requirejs-rails_test.rb

@@ -80,7 +80,27 @@ def setup
     assert_nil @cfg.build_config['priority'] 
   end
 
-  ## Almond tests
+  test "build config should replace urls in paths with 'empty:'" do
+    @cfg.user_config = { 'paths' => 
+      { 
+        'jquery' => 'http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js',
+        'jqueryssl' => 'https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js'
+      }
+    }
+    assert_equal 'empty:', @cfg.build_config['paths']['jquery']
+    assert_equal 'empty:', @cfg.build_config['paths']['jqueryssl']
+  end
+
+  test "build_config should not modify non-urls in paths" do
+    @cfg.user_config = { 'paths' => 
+      { 
+        'foo' => 'components/foo'
+      }
+    }
+    assert_equal 'components/foo', @cfg.build_config['paths']['foo']
+  end
+
+  ## Almond-specific tests
   test "build_config with almond should accept one module" do
     @cfg.loader = :almond
     @cfg.user_config = { 'modules' => [ { 'name' => 'foo' } ] }