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module Gitlab
class Redis
CACHE_NAMESPACE = 'cache:gitlab'
SESSION_NAMESPACE = 'session:gitlab'
SIDEKIQ_NAMESPACE = 'resque:gitlab'
attr_reader :url
# To be thread-safe we must be careful when writing the class instance
# variables @url and @pool. Because @pool depends on @url we need two
# mutexes to prevent deadlock.
URL_MUTEX = Mutex.new
POOL_MUTEX = Mutex.new
private_constant :URL_MUTEX, :POOL_MUTEX
def self.url
@url || URL_MUTEX.synchronize { @url = new.url }
end
def self.with
if @pool.nil?
POOL_MUTEX.synchronize do
@pool = ConnectionPool.new { ::Redis.new(url: url) }
end
end
@pool.with { |redis| yield redis }
end
def self.redis_store_options
url = new.url
redis_config_hash = ::Redis::Store::Factory.extract_host_options_from_uri(url)
# Redis::Store does not handle Unix sockets well, so let's do it for them
redis_uri = URI.parse(url)
if redis_uri.scheme == 'unix'
redis_config_hash[:path] = redis_uri.path
end
redis_config_hash
end
def initialize(rails_env=nil)
rails_env ||= Rails.env
config_file = File.expand_path('../../../config/resque.yml', __FILE__)
@url = "redis://localhost:6379"
if File.exists?(config_file)
@url =YAML.load_file(config_file)[rails_env]
end
end
end
end
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