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# frozen_string_literal: true

require "redis"

require "split/algorithms"

require "split/algorithms/block_randomization"

require "split/algorithms/weighted_sample"

require "split/algorithms/whiplash"

require "split/alternative"

require "split/cache"

require "split/configuration"

require "split/encapsulated_helper"

require "split/exceptions"

require "split/experiment"

require "split/experiment_catalog"

require "split/extensions/string"

require "split/goals_collection"

require "split/helper"

require "split/combined_experiments_helper"

require "split/metric"

require "split/persistence"

require "split/redis_interface"

require "split/trial"

require "split/user"

require "split/version"

require "split/zscore"

require "split/engine" if defined?(::Rails::Engine)

module Split

extend self

attr_accessor :configuration

OVERRIDE_COOKIE_NAME = "split_override"

# Accepts:

# 1. A redis URL (valid for `Redis.new(url: url)`)

# 2. an options hash compatible with `Redis.new`

# 3. or a valid Redis instance (one that responds to `#smembers`). Likely,

# this will be an instance of either `Redis`, `Redis::Client`,

# `Redis::DistRedis`, or `Redis::Namespace`.

def redis=(server)

@redis = if server.is_a?(String)

Redis.new(url: server)

elsif server.is_a?(Hash)

Redis.new(server)

elsif server.respond_to?(:smembers)

server

else

raise ArgumentError,

"You must supply a url, options hash or valid Redis connection instance"

end

end

# Returns the current Redis connection. If none has been created, will

# create a new one.

def redis

return @redis if @redis

self.redis = self.configuration.redis

self.redis

end

# Call this method to modify defaults in your initializers.

#

# @example

# Split.configure do |config|

# config.ignore_ip_addresses = '192.168.2.1'

# end

def configure

self.configuration ||= Configuration.new

yield(configuration)

end

def cache(namespace, key, &block)

Split::Cache.fetch(namespace, key, &block)

end

end

# Check to see if being run in a Rails application. If so, wait until before_initialize to run configuration so Gems that create ENV variables have the chance to initialize first.

if defined?(::Rails::Railtie)

class Split::Railtie < Rails::Railtie

config.before_initialize { Split.configure { } }

end

else

Split.configure { }

end