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path: root/lib/tasks/gitlab/uploads/migrate.rake
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namespace :gitlab do
  namespace :uploads do
    desc 'GitLab | Uploads | Migrate the uploaded files to object storage'
    task :migrate, [:uploader_class, :model_class, :mounted_as] => :environment do |task, args|
      batch_size     = ENV.fetch('BATCH', 200).to_i
      @to_store      = ObjectStorage::Store::REMOTE
      @mounted_as    = args.mounted_as&.gsub(':', '')&.to_sym
      @uploader_class = args.uploader_class.constantize
      @model_class    = args.model_class.constantize

      uploads.each_batch(of: batch_size, &method(:enqueue_batch)) # rubocop: disable Cop/InBatches
    end

    def enqueue_batch(batch, index)
      job = ObjectStorage::MigrateUploadsWorker.enqueue!(batch,
                                                         @model_class,
                                                         @mounted_as,
                                                         @to_store)
      puts "Enqueued job ##{index}: #{job}"
    rescue ObjectStorage::MigrateUploadsWorker::SanityCheckError => e
      # continue for the next batch
      puts "Could not enqueue batch (#{batch.ids}) #{e.message}".color(:red)
    end

    def uploads
      Upload.class_eval { include EachBatch } unless Upload < EachBatch

      Upload
        .where(store: [nil, ObjectStorage::Store::LOCAL],
               uploader: @uploader_class.to_s,
               model_type: @model_class.base_class.sti_name)
    end
  end
end