site_scons/Utilities.py

   1 # SPDX-License-Identifier: MIT
   2 #
   3 # Copyright The SCons Foundation
   4
   5 import os
   6 import stat
   7 import time
   8 import sysconfig
   9
  10 platform = sysconfig.get_platform()
  11
  12 def is_windows() -> bool:
  13     """Check if we're on a Windows platform"""
  14     return platform.startswith('win')
  15
  16
  17 def whereis(filename):
  18     """
  19     An internal "whereis" routine to figure out if a given program
  20     is available on this system.
  21     """
  22     exts = ['']
  23     if is_windows():
  24         exts += ['.exe']
  25     for dir in os.environ['PATH'].split(os.pathsep):
  26         f = os.path.join(dir, filename)
  27         for ext in exts:
  28             f_ext = f + ext
  29             if os.path.isfile(f_ext):
  30                 try:
  31                     st = os.stat(f_ext)
  32                 except:
  33                     continue
  34                 if stat.S_IMODE(st[stat.ST_MODE]) & 0o111:
  35                     return f_ext
  36     return None
  37
  38
  39 # Datestring for debian
  40 # Should look like: Mon, 03 Nov 2016 13:37:42 -0700
  41 deb_date = time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.gmtime())