extras/build_util.py

   1 from __future__ import absolute_import, division, print_function, unicode_literals
   2 import os
   3 try:
   4     from shutil import which  # pylint: disable=unused-import
   5 except ImportError:
   6     # pylint: disable=unused-import
   7     from distutils.spawn import find_executable as which  # noqa
   8
   9
  10 def encode(string):
  11     try:
  12         result = string.encode('utf-8')
  13     except (ValueError, UnicodeEncodeError):
  14         result = string
  15     return result
  16
  17
  18 def make_string(x):
  19     if x:
  20         x = str(x)
  21     return x
  22
  23
  24 def stringify_options(items):
  25     return [[make_string(x) for x in i] for i in items]
  26
  27
  28 def stringify_list(items):
  29     return [make_string(i) for i in items]
  30
  31
  32 def newer(a, b):
  33     """Return True if a is newer than b"""
  34     try:
  35         stat_a = os.stat(a)
  36         stat_b = os.stat(b)
  37     except OSError:
  38         return True
  39     return stat_a.st_mtime >= stat_b.st_mtime