56 lines
1.1 KiB
Ruby
56 lines
1.1 KiB
Ruby
# frozen_string_literal: true
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#
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module Gitlab
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module Diff
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class StatsCache
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include Gitlab::Utils::StrongMemoize
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EXPIRATION = 1.week
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# The DiffStats#as_json representation is tied to the Gitaly protobuf version
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VERSION = Gem.loaded_specs['gitaly'].version.to_s
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def initialize(cachable_key:)
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@cachable_key = cachable_key
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end
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def read
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strong_memoize(:cached_values) do
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content = cache.fetch(key)
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next unless content
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stats = content.map { |stat| Gitaly::DiffStats.new(stat) }
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Gitlab::Git::DiffStatsCollection.new(stats)
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end
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end
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def write_if_empty(stats)
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return if cache.exist?(key)
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return unless stats
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cache.write(key, stats.map(&:to_h).as_json, expires_in: EXPIRATION)
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clear_memoization(:cached_values)
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end
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def clear
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cache.delete(key)
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end
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private
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attr_reader :cachable_key
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def cache
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Rails.cache
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end
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def key
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strong_memoize(:redis_key) do
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['diff_stats', cachable_key, VERSION].join(":")
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end
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end
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end
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end
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end
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