Detect project and namespace changes in list:repos

lib/tasks/gitlab/list_repos.rake

@@ -3,9 +3,10 @@ namespace :gitlab do
     scope = Project
     if ENV['SINCE']
       date = Time.parse(ENV['SINCE'])
-      warn "Listing repositories with activity since #{date}"
-      project_ids = Project.where(['last_activity_at > ?', date]).pluck(:id)
-      scope = scope.where(id: project_ids)
+      warn "Listing repositories with activity or changes since #{date}"
+      project_ids = Project.where('last_activity_at > ? OR updated_at > ?', date, date).pluck(:id).sort
+      namespace_ids = Namespace.where(['updated_at > ?', date]).pluck(:id).sort
+      scope = scope.where('id IN (?) OR namespace_id in (?)', project_ids, namespace_ids)
     end
     scope.find_each do |project|
       base = File.join(Gitlab.config.gitlab_shell.repos_path, project.path_with_namespace)