when rollingback repository migration, toggle readonly mode back

app/services/projects/hashed_storage/migrate_attachments_service.rb

@@ -22,8 +22,8 @@ module Projects
       private
 
       def move_folder!(old_path, new_path)
-        unless File.exist?(old_path)
-          logger.info("Skipped attachments migration from '#{old_path}' to '#{new_path}', source path doesn't exist (PROJECT_ID=#{project.id})")
+        unless File.directory?(old_path)
+          logger.info("Skipped attachments migration from '#{old_path}' to '#{new_path}', source path doesn't exist or is not a directory (PROJECT_ID=#{project.id})")
           return
         end
 

app/services/projects/hashed_storage/migrate_repository_service.rb

@@ -31,7 +31,7 @@ module Projects
 
         unless result
           rollback_folder_move
-          return result
+          project.storage_version = nil
         end
 
         project.repository_read_only = false

spec/services/projects/hashed_storage/migrate_repository_service_spec.rb

@@ -48,18 +48,20 @@ describe Projects::HashedStorage::MigrateRepositoryService do
 
         expect(gitlab_shell.exists?(project.repository_storage_path, "#{hashed_storage.disk_path}.git")).to be_falsey
         expect(gitlab_shell.exists?(project.repository_storage_path, "#{hashed_storage.disk_path}.wiki.git")).to be_falsey
+        expect(project.repository_read_only?).to be_falsey
       end
 
       context 'when rollback fails' do
-        before do
-          from_name = legacy_storage.disk_path
-          to_name = hashed_storage.disk_path
+        let(:from_name) { legacy_storage.disk_path }
+        let(:to_name) { hashed_storage.disk_path }
 
+        before do
           hashed_storage.ensure_storage_path_exists
           gitlab_shell.mv_repository(project.repository_storage_path, from_name, to_name)
         end
 
         it 'does not try to move nil repository over hashed' do
+          expect(gitlab_shell).not_to receive(:mv_repository).with(project.repository_storage_path, from_name, to_name)
           expect_move_repository("#{project.disk_path}.wiki", "#{hashed_storage.disk_path}.wiki")
 
           service.execute