Add latest changes from gitlab-org/gitlab@13-12-stable-eev13.12.0-rc42

1 files changed, 16 insertions, 0 deletions

diff --git a/lib/gitlab/class_attributes.rb b/lib/gitlab/class_attributes.rb
index 6560c97b2e6..6eea7590cbd 100644
--- a/lib/gitlab/class_attributes.rb
+++ b/lib/gitlab/class_attributes.rb
@@ -14,6 +14,18 @@ module Gitlab
         class_attributes[name] || superclass_attributes(name)
       end
 
+      def set_class_attribute(name, value)
+        class_attributes[name] = value
+
+        after_hooks.each(&:call)
+
+        value
+      end
+
+      def after_set_class_attribute(&block)
+        after_hooks << block
+      end
+
       private
 
       def class_attributes
@@ -25,6 +37,10 @@ module Gitlab
 
         superclass.get_class_attribute(name)
       end
+
+      def after_hooks
+        @after_hooks ||= []
+      end
     end
   end
 end