def _write_files(output_root, contents, generated_suffix_map=None):
 _ensure_dir(output_root)
 to_delete = (set((file.basename() for file in output_root.files())) - set(contents.keys()))
 if generated_suffix_map:
  for output_file in contents.keys():
   for (suffix, generated_suffix) in generated_suffix_map.items():
    if output_file.endswith(suffix):
     to_delete.discard(output_file.replace(suffix, generated_suffix))
 for extra_file in to_delete:
  (output_root / extra_file).remove_p()
 for (filename, file_content) in contents.iteritems():
  output_file = (output_root / filename)
  not_file = (not output_file.isfile())
  write_file = (not_file or (output_file.read_md5() != hashlib.md5(file_content).digest()))
  if write_file:
   LOG.debug('Writing %s', output_file)
   output_file.write_bytes(file_content)
  else:
   LOG.debug('%s unchanged, skipping', output_file)

def _write_files ( output_root , contents , generated_suffix_map = None ) : _ensure_dir ( output_root ) to_delete = ( set ( ( file . basename ( ) for file in output_root . files ( ) ) ) - set ( contents . keys ( ) ) ) if generated_suffix_map : for output_file in contents . keys ( ) : for ( suffix , generated_suffix ) in generated_suffix_map . items ( ) : if output_file . endswith ( suffix ) : to_delete . discard ( output_file . replace ( suffix , generated_suffix ) ) for extra_file in to_delete : ( output_root / extra_file ) . remove_p ( ) for ( filename , file_content ) in contents . iteritems ( ) : output_file = ( output_root / filename ) not_file = ( not output_file . isfile ( ) ) write_file = ( not_file or ( output_file . read_md5 ( ) != hashlib . md5 ( file_content ) . digest ( ) ) ) if write_file : LOG . debug ( 'Writing %s' , output_file ) output_file . write_bytes ( file_content ) else : LOG . debug ( '%s unchanged, skipping' , output_file )
write file contents to output root .