Rakefile in louis-1.2.0 vs Rakefile in louis-2.0.0

@@ -10,14 +10,19 @@
 
 desc "Pre-parse the source file into the parsed file"
 task :parse_data_file => [:environment] do
   include Louis::Helpers
 
-  lookup_table = []
+  lookup_table = {}
 
   File.open(Louis::ORIGINAL_OUI_FILE).each_line do |line|
-    res = line_parser(line)
-    lookup_table.push(res) if res
+    next unless (res = line_parser(line))
+
+    lookup_table[res['mask']] ||= {}
+    lookup_table[res['mask']][res['prefix'].to_s] = {
+      's' => res['short_vendor'],
+      'l' => res['long_vendor']
+    }
   end
 
   File.write(Louis::PARSED_DATA_FILE, JSON.generate(lookup_table))
 end