146 lines
4.3 KiB
Ruby
146 lines
4.3 KiB
Ruby
# frozen_string_literal: true
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# rubocop:disable Scalability/IdempotentWorker
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module ObjectStorage
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class MigrateUploadsWorker
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include ApplicationWorker
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data_consistency :always
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sidekiq_options retry: 3
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include ObjectStorageQueue
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feature_category :not_owned # rubocop:todo Gitlab/AvoidFeatureCategoryNotOwned
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loggable_arguments 0, 1, 2, 3
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SanityCheckError = Class.new(StandardError)
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class MigrationResult
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attr_reader :upload
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attr_accessor :error
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def initialize(upload, error = nil)
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@upload = upload
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@error = error
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end
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def success?
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error.nil?
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end
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def to_s
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success? ? _("Migration successful.") : _("Error while migrating %{upload_id}: %{error_message}") % { upload_id: upload.id, error_message: error.message }
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end
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end
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module Report
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class MigrationFailures < StandardError
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attr_reader :errors
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def initialize(errors)
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@errors = errors
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end
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def message
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errors.map(&:message).join("\n")
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end
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end
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def report!(results)
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success, failures = results.partition(&:success?)
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Gitlab::AppLogger.info header(success, failures)
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Gitlab::AppLogger.warn failures(failures)
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raise MigrationFailures, failures.map(&:error) if failures.any?
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end
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def header(success, failures)
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_("Migrated %{success_count}/%{total_count} files.") % { success_count: success.count, total_count: success.count + failures.count }
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end
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def failures(failures)
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failures.map { |f| "\t#{f}" }.join('\n')
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end
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end
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include Report
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# rubocop: disable CodeReuse/ActiveRecord
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def self.enqueue!(uploads, model_class, mounted_as, to_store)
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sanity_check!(uploads, model_class, mounted_as)
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perform_async(uploads.ids, model_class.to_s, mounted_as, to_store)
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end
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# rubocop: enable CodeReuse/ActiveRecord
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# We need to be sure all the uploads are for the same uploader and model type
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# and that the mount point exists if provided.
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#
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def self.sanity_check!(uploads, model_class, mounted_as)
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upload = uploads.first
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uploader_class = upload.uploader.constantize
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uploader_types = uploads.map(&:uploader).uniq
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model_types = uploads.map(&:model_type).uniq
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model_has_mount = mounted_as.nil? || model_class.uploaders[mounted_as] == uploader_class
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raise(SanityCheckError, _("Multiple uploaders found: %{uploader_types}") % { uploader_types: uploader_types }) unless uploader_types.count == 1
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raise(SanityCheckError, _("Multiple model types found: %{model_types}") % { model_types: model_types }) unless model_types.count == 1
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raise(SanityCheckError, _("Mount point %{mounted_as} not found in %{model_class}.") % { mounted_as: mounted_as, model_class: model_class }) unless model_has_mount
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end
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# rubocop: disable CodeReuse/ActiveRecord
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def perform(*args)
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args_check!(args)
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(ids, model_type, mounted_as, to_store) = args
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@model_class = model_type.constantize
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@mounted_as = mounted_as&.to_sym
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@to_store = to_store
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uploads = Upload.preload(:model).where(id: ids)
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sanity_check!(uploads)
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results = migrate(uploads)
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report!(results)
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rescue SanityCheckError => e
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# do not retry: the job is insane
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Gitlab::AppLogger.warn "#{self.class}: Sanity check error (#{e.message})"
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end
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# rubocop: enable CodeReuse/ActiveRecord
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def sanity_check!(uploads)
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self.class.sanity_check!(uploads, @model_class, @mounted_as)
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end
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def args_check!(args)
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return if args.count == 4
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case args.count
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when 3 then raise SanityCheckError, _("Job is missing the `model_type` argument.")
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else
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raise SanityCheckError, _("Job has wrong arguments format.")
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end
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end
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def build_uploaders(uploads)
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uploads.map { |upload| upload.retrieve_uploader(@mounted_as) }
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end
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def migrate(uploads)
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build_uploaders(uploads).map(&method(:process_uploader))
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end
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def process_uploader(uploader)
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MigrationResult.new(uploader.upload).tap do |result|
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uploader.migrate!(@to_store)
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rescue StandardError => e
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result.error = e
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end
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end
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end
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end
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# rubocop:enable Scalability/IdempotentWorker
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