Track package_file size

ee/app/models/packages/package_file.rb

 # frozen_string_literal: true
 class Packages::PackageFile < ApplicationRecord
+  include UpdateProjectStatistics
+
+  delegate :project, :project_id, to: :package
+  update_project_statistics stat: :packages_size
+
   belongs_to :package
 
   validates :package, presence: true

ee/changelogs/unreleased/ac-package-storage-stats-ee.yml

+---
+title: Keep track of packages_file in ProjectStatistics
+merge_request: 11020
+author:
+type: added

ee/spec/models/packages/package_file_spec.rb

@@ -9,4 +9,8 @@ RSpec.describe Packages::PackageFile, type: :model do
   describe 'validations' do
     it { is_expected.to validate_presence_of(:package) }
   end
+
+  it_behaves_like 'UpdateProjectStatistics' do
+    subject { build(:package_file, :jar, size: 42) }
+  end
 end