assign helper full name to variable to reduce code length

lib/tasks/gitlab/storage.rake

@@ -3,6 +3,7 @@ namespace :gitlab do
     desc 'GitLab | Storage | Migrate existing projects to Hashed Storage'
     task migrate_to_hashed: :environment do
       legacy_projects_count = Project.with_unmigrated_storage.count
+      helper = Gitlab::HashedStorage::RakeHelper
 
       if legacy_projects_count == 0
         puts 'There are no projects requiring storage migration. Nothing to do!'
@@ -10,9 +11,9 @@ namespace :gitlab do
         next
       end
 
-      print "Enqueuing migration of #{legacy_projects_count} projects in batches of #{Gitlab::HashedStorage::RakeHelper.batch_size}"
+      print "Enqueuing migration of #{legacy_projects_count} projects in batches of #{helper.batch_size}"
 
-      Gitlab::HashedStorage::RakeHelper.project_id_batches do |start, finish|
+      helper.project_id_batches do |start, finish|
         StorageMigratorWorker.perform_async(start, finish)
 
         print '.'
@@ -23,42 +24,50 @@ namespace :gitlab do
 
     desc 'Gitlab | Storage | Summary of existing projects using Legacy Storage'
     task legacy_projects: :environment do
-      Gitlab::HashedStorage::RakeHelper.relation_summary('projects', Project.without_storage_feature(:repository))
+      helper = Gitlab::HashedStorage::RakeHelper
+      helper.relation_summary('projects', Project.without_storage_feature(:repository))
     end
 
     desc 'Gitlab | Storage | List existing projects using Legacy Storage'
     task list_legacy_projects: :environment do
-      Gitlab::HashedStorage::RakeHelper.projects_list('projects using Legacy Storage', Project.without_storage_feature(:repository))
+      helper = Gitlab::HashedStorage::RakeHelper
+      helper.projects_list('projects using Legacy Storage', Project.without_storage_feature(:repository))
     end
 
     desc 'Gitlab | Storage | Summary of existing projects using Hashed Storage'
     task hashed_projects: :environment do
-      Gitlab::HashedStorage::RakeHelper.relation_summary('projects using Hashed Storage', Project.with_storage_feature(:repository))
+      helper = Gitlab::HashedStorage::RakeHelper
+      helper.relation_summary('projects using Hashed Storage', Project.with_storage_feature(:repository))
     end
 
     desc 'Gitlab | Storage | List existing projects using Hashed Storage'
     task list_hashed_projects: :environment do
-      Gitlab::HashedStorage::RakeHelper.projects_list('projects using Hashed Storage', Project.with_storage_feature(:repository))
+      helper = Gitlab::HashedStorage::RakeHelper
+      helper.projects_list('projects using Hashed Storage', Project.with_storage_feature(:repository))
     end
 
     desc 'Gitlab | Storage | Summary of project attachments using Legacy Storage'
     task legacy_attachments: :environment do
-      Gitlab::HashedStorage::RakeHelper.relation_summary('attachments using Legacy Storage', Gitlab::HashedStorage::RakeHelper.legacy_attachments_relation)
+      helper = Gitlab::HashedStorage::RakeHelper
+      helper.relation_summary('attachments using Legacy Storage', helper.legacy_attachments_relation)
     end
 
     desc 'Gitlab | Storage | List existing project attachments using Legacy Storage'
     task list_legacy_attachments: :environment do
-      Gitlab::HashedStorage::RakeHelper.attachments_list('attachments using Legacy Storage', Gitlab::HashedStorage::RakeHelper.legacy_attachments_relation)
+      helper = Gitlab::HashedStorage::RakeHelper
+      helper.attachments_list('attachments using Legacy Storage', helper.legacy_attachments_relation)
     end
 
     desc 'Gitlab | Storage | Summary of project attachments using Hashed Storage'
     task hashed_attachments: :environment do
-      Gitlab::HashedStorage::RakeHelper.relation_summary('attachments using Hashed Storage', Gitlab::HashedStorage::RakeHelper.hashed_attachments_relation)
+      helper = Gitlab::HashedStorage::RakeHelper
+      helper.relation_summary('attachments using Hashed Storage', helper.hashed_attachments_relation)
     end
 
     desc 'Gitlab | Storage | List existing project attachments using Hashed Storage'
     task list_hashed_attachments: :environment do
-      Gitlab::HashedStorage::RakeHelper.attachments_list('attachments using Hashed Storage', Gitlab::HashedStorage::RakeHelper.hashed_attachments_relation)
+      helper = Gitlab::HashedStorage::RakeHelper
+      helper.attachments_list('attachments using Hashed Storage', helper.hashed_attachments_relation)
     end
   end
 end