adds race_condition_ttl option for the ActiveSupportCacheStore adapter

Author: rosanelli

lib/flipper/adapters/active_support_cache_store.rb

@@ -6,8 +6,12 @@ module Flipper
   module Adapters
     # Public: Adapter that wraps another adapter with the ability to cache
     # adapter calls in ActiveSupport::ActiveSupportCacheStore caches.
+
+    # Public: The race_condition_ttl for all cached data.
+    attr_reader :race_condition_ttl
+
     class ActiveSupportCacheStore < CacheBase
-      def initialize(adapter, cache, ttl = nil, expires_in: :none_provided, write_through: false, prefix: nil)
+      def initialize(adapter, cache, ttl = nil, expires_in: :none_provided, race_condition_ttl: nil, write_through: false, prefix: nil)
         if expires_in == :none_provided
           ttl ||= nil
         else
@@ -18,6 +22,7 @@ def initialize(adapter, cache, ttl = nil, expires_in: :none_provided, write_thro
           ttl = expires_in
         end
         super(adapter, cache, ttl, prefix: prefix)
+        @race_condition_ttl = race_condition_ttl
         @write_through = write_through
       end
 
@@ -73,6 +78,7 @@ def cache_delete(key)
       def write_options
         write_options = {}
         write_options[:expires_in] = @ttl if @ttl
+        write_options[:race_condition_ttl] if @race_condition_ttl
         write_options
       end
     end