Skip MR metrics when importing projects from GitHub

app/models/concerns/importable.rb

@@ -3,4 +3,7 @@ module Importable
 
   attr_accessor :importing
   alias_method :importing?, :importing
+
+  attr_accessor :skip_metrics
+  alias_method :skip_metrics?, :skip_metrics
 end

app/models/concerns/issuable.rb

@@ -14,6 +14,7 @@ module Issuable
   include Awardable
   include Taskable
   include TimeTrackable
+  include Importable
 
   # This object is used to gather issuable meta data for displaying
   # upvotes, downvotes, notes and closing merge requests count for issues and merge requests
@@ -99,7 +100,7 @@ module Issuable
     acts_as_paranoid
 
     after_save :update_assignee_cache_counts, if: :assignee_id_changed?
-    after_save :record_metrics
+    after_save :record_metrics, unless: :skip_metrics?
 
     def update_assignee_cache_counts
       # make sure we flush the cache for both the old *and* new assignees(if they exist)

app/models/merge_request.rb

@@ -3,7 +3,6 @@ class MergeRequest < ActiveRecord::Base
   include Issuable
   include Referable
   include Sortable
-  include Importable
 
   belongs_to :target_project, class_name: "Project"
   belongs_to :source_project, class_name: "Project"

lib/gitlab/github_import/pull_request_formatter.rb

@@ -20,7 +20,8 @@ module Gitlab
           author_id: author_id,
           assignee_id: assignee_id,
           created_at: raw_data.created_at,
-          updated_at: raw_data.updated_at
+          updated_at: raw_data.updated_at,
+          skip_metrics: true
         }
       end