Moved renaming operations to storage layer abstraction

When project storage_version is `2` means attachments are using
hashed storage.

app/models/project.rb

@@ -26,7 +26,10 @@ class Project < ActiveRecord::Base
   NUMBER_OF_PERMITTED_BOARDS = 1
   UNKNOWN_IMPORT_URL = 'http://unknown.git'.freeze
-  LATEST_STORAGE_VERSION = 1
+  # Hashed Storage versions handle rolling out new storage to project and dependents models
+  # 1: repository
+  # 2: attachments
+  LATEST_STORAGE_VERSION = 2
   cache_markdown_field :description, pipeline: :description
@@ -1384,7 +1387,7 @@ class Project < ActiveRecord::Base
     if storage.rename_repo
       Gitlab::AppLogger.info "Project was renamed: #{full_path_was} -> #{new_full_path}"
       rename_repo_notify!
-      after_rename_repo
+      storage.after_rename_repo
     else
       Rails.logger.error "Repository could not be renamed: #{full_path_was} -> #{new_full_path}"
@@ -1404,13 +1407,6 @@ class Project < ActiveRecord::Base
     reload_repository!
   end
-  def after_rename_repo
-    path_before_change = previous_changes['path'].first
-
-    Gitlab::UploadsTransfer.new.rename_project(path_before_change, self.path, namespace.full_path)
-    Gitlab::PagesTransfer.new.rename_project(path_before_change, self.path, namespace.full_path)
-  end
-
   def running_or_pending_build_count(force: false)
     Rails.cache.fetch(['projects', id, 'running_or_pending_build_count'], force: force) do
       builds.running_or_pending.count(:all)

app/models/storage/hashed_project.rb

@@ -32,6 +32,19 @@ module Storage
       true
     end
+    def after_rename_repo
+      path_before_change = project.previous_changes['path'].first
+
+      # We need to check if project had been rolled out to move resource to hashed storage or not and decide
+      # if we need execute any take action or no-op.
+
+      unless project.storage_version >= 2
+        Gitlab::UploadsTransfer.new.rename_project(path_before_change, project.path, project.namespace.full_path)
+      end
+
+      Gitlab::PagesTransfer.new.rename_project(path_before_change, project.path, project.namespace.full_path)
+    end
+
     private
     # Generates the hash for the project path and name on disk

app/models/storage/legacy_project.rb

@@ -47,5 +47,12 @@ module Storage
       false
     end
+
+    def after_rename_repo
+      path_before_change = project.previous_changes['path'].first
+
+      Gitlab::UploadsTransfer.new.rename_project(path_before_change, project.path, project.namespace.full_path)
+      Gitlab::PagesTransfer.new.rename_project(path_before_change, project.path, project.namespace.full_path)
+    end
   end
 end

spec/models/project_spec.rb

@@ -2452,6 +2452,7 @@ describe Project do
   context 'legacy storage' do
     let(:project) { create(:project, :repository) }
     let(:gitlab_shell) { Gitlab::Shell.new }
+    let(:project_storage) { project.send(:storage) }
     before do
       allow(project).to receive(:gitlab_shell).and_return(gitlab_shell)
@@ -2546,6 +2547,30 @@ describe Project do
         it { expect { subject }.to raise_error(StandardError) }
       end
+
+      context 'gitlab pages' do
+        before do
+          expect(project_storage).to receive(:rename_repo) { true }
+        end
+
+        it 'moves pages folder to new location' do
+          expect_any_instance_of(Gitlab::PagesTransfer).to receive(:rename_project)
+
+          project.rename_repo
+        end
+      end
+
+      context 'attachments' do
+        before do
+          expect(project_storage).to receive(:rename_repo) { true }
+        end
+
+        it 'moves uploads folder to new location' do
+          expect_any_instance_of(Gitlab::UploadsTransfer).to receive(:rename_project)
+
+          project.rename_repo
+        end
+      end
     end
     describe '#pages_path' do
@@ -2649,10 +2674,6 @@ describe Project do
           .to receive(:execute_hooks_for)
             .with(project, :rename)
-        expect_any_instance_of(Gitlab::UploadsTransfer)
-          .to receive(:rename_project)
-            .with('foo', project.path, project.namespace.full_path)
-
         expect(project).to receive(:expire_caches_before_rename)
         expect(project).to receive(:expires_full_path_cache)
@@ -2673,6 +2694,32 @@ describe Project do
         it { expect { subject }.to raise_error(StandardError) }
       end
+
+      context 'gitlab pages' do
+        it 'moves pages folder to new location' do
+          expect_any_instance_of(Gitlab::PagesTransfer).to receive(:rename_project)
+
+          project.rename_repo
+        end
+      end
+
+      context 'attachments' do
+        it 'keeps uploads folder location unchanged' do
+          expect_any_instance_of(Gitlab::UploadsTransfer).not_to receive(:rename_project)
+
+          project.rename_repo
+        end
+
+        context 'when not rolled out' do
+          let(:project) { create(:project, :repository, storage_version: 1) }
+
+          it 'moves pages folder to new location' do
+            expect_any_instance_of(Gitlab::UploadsTransfer).to receive(:rename_project)
+
+            project.rename_repo
+          end
+        end
+      end
     end
     describe '#pages_path' do