No user needed to cleanup namespaceless pending delete projects

Since this is a cleanup, ran by a post-deploy, there is no need to lookup the
admin to run the cleanup.

app/workers/namespaceless_project_destroy_worker.rb

@@ -12,7 +12,7 @@ class NamespacelessProjectDestroyWorker
     Sidekiq::Client.push_bulk('class' => self, 'queue' => sidekiq_options['queue'], 'args' => args_list)
   end
 
-  def perform(project_id, user_id, params)
+  def perform(project_id)
     begin
       project = Project.unscoped.find(project_id)
     rescue ActiveRecord::RecordNotFound
@@ -20,9 +20,6 @@ class NamespacelessProjectDestroyWorker
     end
     return unless project.namespace_id.nil?  # Reject doing anything for projects that *do* have a namespace
 
-    user = User.find(user_id)
-    return unless user.can?(:remove_project, project)
-
     project.team.truncate
 
     unlink_fork(project) if project.forked?

db/post_migrate/20170502101023_cleanup_namespaceless_pending_delete_projects.rb

@@ -8,17 +8,14 @@ class CleanupNamespacelessPendingDeleteProjects < ActiveRecord::Migration
   disable_ddl_transaction!
 
   def up
-    admin = User.find_by(admin: true)
-    return unless admin
-
     @offset = 0
 
     loop do
       ids = pending_delete_batch
 
-      break if ids.rows.count.zero?
+      break if ids.empty?
 
-      args = ids.map { |id| [id['id'], admin.id, {}] }
+      args = ids.map { |id| Array(id) }
 
       NamespacelessProjectDestroyWorker.bulk_perform_async(args)
 
@@ -33,7 +30,7 @@ class CleanupNamespacelessPendingDeleteProjects < ActiveRecord::Migration
   private
 
   def pending_delete_batch
-    connection.exec_query(find_batch)
+    connection.exec_query(find_batch).map{ |row| row['id'] }
   end
 
   BATCH_SIZE = 5000

spec/migrations/cleanup_namespaceless_pending_delete_projects_spec.rb

@@ -10,13 +10,21 @@ describe CleanupNamespacelessPendingDeleteProjects do
 
   describe '#up' do
     it 'only cleans up pending delete projects' do
-      admin = create(:admin)
       create(:empty_project)
       create(:empty_project, pending_delete: true)
       project = build(:empty_project, pending_delete: true, namespace_id: nil)
       project.save(validate: false)
 
-      expect(NamespacelessProjectDestroyWorker).to receive(:bulk_perform_async).with([[project.id.to_s, admin.id, {}]])
+      expect(NamespacelessProjectDestroyWorker).to receive(:bulk_perform_async).with([[project.id.to_s]])
+
+      described_class.new.up
+    end
+
+    it 'does nothing when no pending delete projects without namespace found' do
+      create(:empty_project)
+      create(:empty_project, pending_delete: true)
+
+      expect(NamespacelessProjectDestroyWorker).not_to receive(:bulk_perform_async)
 
       described_class.new.up
     end

spec/workers/namespaceless_project_destroy_worker_spec.rb

@@ -14,15 +14,13 @@ describe NamespacelessProjectDestroyWorker do
       it 'does not do anything' do
         project = create(:empty_project)
 
-        subject.perform(project.id, project.owner.id, {})
+        subject.perform(project.id)
 
         expect(Project.unscoped.all).to include(project)
       end
     end
 
     context 'project has no namespace' do
-      let(:admin) { create(:admin) }
-
       let!(:project) do
         project = build(:empty_project, namespace_id: nil)
         project.save(validate: false)
@@ -33,11 +31,11 @@ describe NamespacelessProjectDestroyWorker do
         it "truncates the project's team" do
           expect_any_instance_of(ProjectTeam).to receive(:truncate)
 
-          subject.perform(project.id, admin.id, {})
+          subject.perform(project.id)
         end
 
         it 'deletes the project' do
-          subject.perform(project.id, admin.id, {})
+          subject.perform(project.id)
 
           expect(Project.unscoped.all).not_to include(project)
         end
@@ -45,13 +43,13 @@ describe NamespacelessProjectDestroyWorker do
         it 'does not call unlink_fork' do
           is_expected.not_to receive(:unlink_fork)
 
-          subject.perform(project.id, admin.id, {})
+          subject.perform(project.id)
         end
 
         it 'does not do anything in Project#remove_pages method' do
           expect(Gitlab::PagesTransfer).not_to receive(:new)
 
-          subject.perform(project.id, admin.id, {})
+          subject.perform(project.id)
         end
       end
 
@@ -65,13 +63,13 @@ describe NamespacelessProjectDestroyWorker do
         it 'closes open merge requests' do
           merge_request = create(:merge_request, source_project: project, target_project: parent_project)
 
-          subject.perform(project.id, admin.id, {})
+          subject.perform(project.id)
 
           expect(merge_request.reload).to be_closed
         end
 
         it 'destroys the link' do
-          subject.perform(project.id, admin.id, {})
+          subject.perform(project.id)
 
           expect(parent_project.forked_project_links).to be_empty
         end