Fiat lux

lib/dyndnsd/database.rb

@@ -0,0 +1,32 @@
+
+require 'forwardable'
+
+module Dyndnsd
+  class Database
+    extend Forwardable
+    
+    def_delegators :@db, :[], :[]=, :each, :has_key?
+  
+    def initialize(db_file)
+      @db_file = db_file
+    end
+    
+    def load
+      if File.file?(@db_file)
+        @db = JSON.load(File.open(@db_file, 'r') { |f| f.read })
+      else
+        @db = {}
+      end
+      @db_hash = @db.hash
+    end
+    
+    def save
+      File.open(@db_file, 'w') { |f| JSON.dump(@db, f) }
+      @db_hash = @db.hash
+    end
+    
+    def changed?
+      @db_hash != @db.hash
+    end
+  end
+end