Link project repo size to files

app/helpers/projects_helper.rb

@@ -156,8 +156,8 @@ module ProjectsHelper
     end
   end
 
-  def repository_size(project = nil)
-    "#{(project || @project).repository_size} MB"
+  def repository_size(project = @project)
+    "#{project.repository_size} MB"
   rescue
     # In order to prevent 500 error
     # when application cannot allocate memory

app/views/projects/show.html.haml

@@ -24,7 +24,7 @@
         = pluralize(number_with_delimiter(@repository.tag_names.count), 'tag')
 
     %li
-      = link_to namespace_project_path(@project.namespace, @project) do
+      = link_to project_files_path(@project) do
         = repository_size
 
     - if !prefer_readme? && @repository.readme