Log renamed event to the Geo event log when repository is transferred

app/services/ee/projects/transfer_service.rb

+module EE
+  module Projects
+    module TransferService
+      private
+
+      def execute_system_hooks
+        raise NotImplementedError unless defined?(super)
+
+        super
+
+        ::Geo::RepositoryRenamedEventStore.new(project,
+          old_path: project.path, old_path_with_namespace: @old_path).create
+      end
+    end
+  end
+end

app/services/projects/transfer_service.rb

@@ -11,6 +11,8 @@ module Projects
     include Gitlab::ShellAdapter
     TransferError = Class.new(StandardError)
 
+    prepend ::EE::Projects::TransferService
+
     def execute(new_namespace)
       @new_namespace = new_namespace
 

spec/services/ee/projects/transfer_service_spec.rb

+# rubocop:disable RSpec/FilePath
+require 'spec_helper'
+
+describe Projects::TransferService, services: true do
+  let(:user) { create(:user) }
+  let(:group) { create(:group) }
+  let(:project) { create(:project, :repository, namespace: user.namespace) }
+
+  subject { described_class.new(project, user) }
+
+  before do
+    group.add_owner(user)
+  end
+
+  context 'when running on a primary node' do
+    let!(:geo_node) { create(:geo_node, :primary, :current) }
+
+    it 'logs an event to the Geo event log' do
+      expect { subject.execute(group) }.to change(Geo::RepositoryRenamedEvent, :count).by(1)
+    end
+  end
+end