app/services/merge_requests/delete_non_latest_diffs_service.rb


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module MergeRequests
  class DeleteNonLatestDiffsService
    BATCH_SIZE = 10

    def initialize(merge_request)
      @merge_request = merge_request
    end

    def execute
      diffs = @merge_request.non_latest_diffs.with_files

      diffs.each_batch(of: BATCH_SIZE) do |relation, index|
        ids = relation.pluck(:id).map { |id| [id] }
        DeleteDiffFilesWorker.bulk_perform_in(index * 5.minutes, ids)
      end
    end
  end
end