DEV: Reduce duplication with DistributedMutex#clear_regex (#25795)

app/serializers/application_serializer.rb

@@ -20,11 +20,7 @@ class ApplicationSerializer < ActiveModel::Serializer
     when String
       fragment_cache.delete(name_or_regexp)
     when Regexp
-      fragment_cache
-        .hash
-        .keys
-        .select { |k| k =~ name_or_regexp }
-        .each { |k| fragment_cache.delete(k) }
+      fragment_cache.clear_regex(name_or_regexp)
     end
   end
 

lib/distributed_cache.rb

@@ -47,4 +47,8 @@ class DistributedCache < MessageBus::DistributedCache
       super()
     end
   end
+
+  def clear_regex(regex)
+    hash.keys.select { |k| k =~ regex }.each { |k| delete(k) }
+  end
 end

lib/stylesheet/manager.rb

@@ -23,19 +23,19 @@ class Stylesheet::Manager
   end
 
   def self.clear_theme_cache!
-    cache.hash.keys.select { |k| k =~ /theme/ }.each { |k| cache.delete(k) }
+    cache.clear_regex(/theme/)
   end
 
   def self.clear_color_scheme_cache!
-    cache.hash.keys.select { |k| k =~ /color_definitions/ }.each { |k| cache.delete(k) }
+    cache.clear_regex(/color_definitions/)
   end
 
   def self.clear_core_cache!(targets)
-    cache.hash.keys.select { |k| k =~ /#{targets.join("|")}/ }.each { |k| cache.delete(k) }
+    cache.clear_regex(/#{targets.join("|")}/)
   end
 
   def self.clear_plugin_cache!(plugin)
-    cache.hash.keys.select { |k| k =~ /#{plugin}/ }.each { |k| cache.delete(k) }
+    cache.clear_regex(/#{plugin}/)
   end
 
   def self.color_scheme_cache_key(color_scheme, theme_id = nil)