104 lines
2.7 KiB
Ruby
104 lines
2.7 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Verify
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class BatchVerifier
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attr_reader :batch_size, :start, :finish
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def initialize(batch_size:, start: nil, finish: nil)
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@batch_size = batch_size
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@start = start
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@finish = finish
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fix_google_api_logger
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end
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# Yields a Range of IDs and a Hash of failed verifications (object => error)
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def run_batches(&blk)
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all_relation.in_batches(of: batch_size, start: start, finish: finish) do |batch| # rubocop: disable Cop/InBatches
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range = batch.first.id..batch.last.id
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failures = run_batch_for(batch)
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yield(range, failures)
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end
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end
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def name
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raise NotImplementedError
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end
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def describe(_object)
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raise NotImplementedError
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end
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private
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def run_batch_for(batch)
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batch.filter_map { |upload| verify(upload) }.to_h
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end
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def verify(object)
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local?(object) ? verify_local(object) : verify_remote(object)
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rescue StandardError => err
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failure(object, err.inspect)
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end
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def verify_local(object)
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expected = expected_checksum(object)
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actual = actual_checksum(object)
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return failure(object, 'Checksum missing') unless expected.present?
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return failure(object, 'Checksum mismatch') unless expected == actual
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success
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end
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# We don't calculate checksum for remote objects, so just check existence
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def verify_remote(object)
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return failure(object, 'Remote object does not exist') unless remote_object_exists?(object)
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success
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end
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def success
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nil
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end
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def failure(object, message)
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[object, message]
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end
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# It's already set to Logger::INFO, but acts as if it is set to
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# Logger::DEBUG, and this fixes it...
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def fix_google_api_logger
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require 'google/apis'
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Google::Apis.logger.level = Logger::INFO
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end
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# This should return an ActiveRecord::Relation suitable for calling #in_batches on
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def all_relation
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raise NotImplementedError
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end
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# Should return true if the object is stored locally
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def local?(_object)
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raise NotImplementedError
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end
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# The checksum we expect the object to have
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def expected_checksum(_object)
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raise NotImplementedError
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end
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# The freshly-recalculated checksum of the object
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def actual_checksum(_object)
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raise NotImplementedError
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end
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# Be sure to perform a hard check of the remote object (don't just check DB value)
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def remote_object_exists?(object)
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raise NotImplementedError
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end
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end
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end
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end
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