Post-receive hook can also fire TagPushService

app/workers/post_receive.rb

@@ -29,10 +29,20 @@ class PostReceive
       return false
     end
 
+    if tag?(ref)
+      GitTagPushService.new.execute(project, user, ref)
+    else
       GitPushService.new.execute(project, user, oldrev, newrev, ref)
     end
+  end
 
   def log(message)
     Gitlab::GitLogger.error("POST-RECEIVE: #{message}")
   end
+
+  private
+
+  def tag?(ref)
+    !!(/refs\/tags\/(.*)/.match(ref))
+  end
 end