Allow ActiveSupport::Cache logger to be silenced

activesupport/lib/active_support/cache.rb

@@ -36,14 +36,18 @@ def self.expand_cache_key(key, namespace = nil)
       expanded_cache_key
     end
 
-
     class Store
       cattr_accessor :logger
 
       def threadsafe!
         extend ThreadSafety
       end
 
+      def silence!
+        @silence = true
+        self
+      end
+
       # Pass <tt>:force => true</tt> to force a cache miss.
       def fetch(key, options = {})
         @logger_off = true
@@ -108,7 +112,7 @@ def decrement(key, amount = 1)
 
       private
         def log(operation, key, options)
-          logger.debug("Cache #{operation}: #{key}#{options ? " (#{options.inspect})" : ""}") if logger && !@logger_off
+          logger.debug("Cache #{operation}: #{key}#{options ? " (#{options.inspect})" : ""}") if logger && !@silence && !@logger_off
         end
     end