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