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# frozen_string_literal: true
# Interface to the Redis-backed cache store for keys that use a Redis set
module Gitlab
class RepositorySetCache < Gitlab::SetCache
attr_reader :repository, :namespace, :expires_in
def initialize(repository, extra_namespace: nil, expires_in: 2.weeks)
@repository = repository
@namespace = "#{repository.full_path}"
@namespace += ":#{repository.project.id}" if repository.project
@namespace = "#{@namespace}:#{extra_namespace}" if extra_namespace
@expires_in = expires_in
end
def cache_key(type)
"#{type}:#{namespace}:set"
end
def write(key, value)
full_key = cache_key(key)
with do |redis|
redis.multi do
redis.unlink(full_key)
# Splitting into groups of 1000 prevents us from creating a too-long
# Redis command
value.each_slice(1000) { |subset| redis.sadd(full_key, subset) }
redis.expire(full_key, expires_in)
end
end
value
end
def fetch(key, &block)
if exist?(key)
read(key)
else
write(key, yield)
end
end
end
end
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