#!/usr/bin/python3                                                                                                                                                          
                                                                                                                                                                              
  import difflib                                                                                                                                                              
                                                                                                                                                                              
  def get_lines(filename):                                                                                                                                                    
      with open(filename, 'r', encoding='utf8') as fd:                                                                                                                        
          return fd.readlines()                                                                                                                                               
                                                                                                                                                                              
  for autojunk in (True, False):                                                                                                                                              
                                                                                                                                                                              
      old_new = list(difflib.unified_diff(                                                                                                                                    
          get_lines('small.external.old.json'),                                                                                                                               
          get_lines('small.external.new.json'),                                                                                                                               
          autojunk=autojunk                                                                                                                                                   
      ))                                                                                                                                                                      
      new_old = list(difflib.unified_diff(                                                                                                                                    
          get_lines('small.external.new.json'),                                                                                                                               
          get_lines('small.external.old.json'),                                                                                                                               
          autojunk=autojunk                                                                                                                                                   
      ))                                                                                                                                                                      
                                                                                                                                                                              
      print('Autojunk flag:', autojunk)                                                                                                                                       
      print('diff external.old external.new.json | wc -l')                                                                                                                    
      print(len(old_new))                                                                                                                                                     
      print('diff external.new external.old.json | wc -l')                                                                                                                    
      print(len(new_old))