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# frozen_string_literal: true
module Gitlab
module Uploads
class MigrationHelper
attr_reader :logger
def initialize(args, logger)
prepare_variables(args, logger)
end
def migrate_to_remote_storage
@to_store = ObjectStorage::Store::REMOTE
uploads.each_batch(of: batch_size, &method(:enqueue_batch))
end
def migrate_to_local_storage
@to_store = ObjectStorage::Store::LOCAL
uploads(ObjectStorage::Store::REMOTE).each_batch(of: batch_size, &method(:enqueue_batch))
end
private
def batch_size
ENV.fetch('MIGRATION_BATCH_SIZE', 200).to_i
end
def prepare_variables(args, logger)
@mounted_as = args.mounted_as&.gsub(':', '')
@uploader_class = args.uploader_class
@model_class = args.model_class&.constantize
@logger = logger
end
def enqueue_batch(batch, index)
job = ObjectStorage::MigrateUploadsWorker.enqueue!(batch, @to_store)
logger.info(message: "[Uploads migration] Enqueued upload migration job", index: index, job_id: job)
rescue ObjectStorage::MigrateUploadsWorker::SanityCheckError => e
# continue for the next batch
logger.warn(message: "[Uploads migration] Could not enqueue batch", ids: batch.ids, reason: e.message) # rubocop:disable CodeReuse/ActiveRecord
end
# rubocop:disable CodeReuse/ActiveRecord
def uploads(store_type = [nil, ObjectStorage::Store::LOCAL])
Upload.class_eval { include EachBatch } unless Upload < EachBatch
uploads = Upload.where(store: store_type)
uploads = uploads.where(uploader: @uploader_class) if @uploader_class.present?
uploads = uploads.where(model_type: @model_class.base_class.sti_name) if @model_class.present?
uploads = uploads.where(mount_point: @mounted_as) if @mounted_as.present?
uploads
end
# rubocop:enable CodeReuse/ActiveRecord
end
end
end
Gitlab::Uploads::MigrationHelper.prepend_mod_with('Gitlab::Uploads::MigrationHelper')
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