Quiet git during bundle install if quiet option set

lib/bundler/source/git/git_proxy.rb

@@ -44,7 +44,9 @@ def checkout
           else
             Bundler.ui.info "Fetching #{uri}"
             FileUtils.mkdir_p(path.dirname)
-            git %|clone #{uri_escaped} "#{path}" --bare --no-hardlinks|
+            clone_command = %|clone #{uri_escaped} "#{path}" --bare --no-hardlinks|
+            clone_command = "#{clone_command} --quiet" if Bundler.ui.quiet?
+            git clone_command
           end
         end
 
@@ -139,4 +141,4 @@ def allowed_in_path
 
     end
   end
-end
+end

lib/bundler/ui.rb

@@ -57,6 +57,10 @@ def be_quiet!
         @quiet = true
       end
 
+      def quiet?
+        @quiet
+      end
+
       def debug?
         # needs to be false instead of nil to be newline param to other methods
         !!@debug && !@quiet