node.rb in itamae-1.0.0.beta13

- old
+ new

@@ -2,8 +2,15 @@
 require 'hashie'
 require 'json'
 
 module Itamae
   class Node < Hashie::Mash
+    def reverse_merge(other_hash)
+      Hashie::Mash.new(other_hash).merge(self)
+    end
+
+    def reverse_merge!(other_hash)
+      self.replace(reverse_merge(other_hash))
+    end
   end
 end
 