build/buildconfig.py

   1 # This Source Code Form is subject to the terms of the Mozilla Public
   2 # License, v. 2.0. If a copy of the MPL was not distributed with this
   3 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   4
   5 import imp
   6 import os
   7 import sys
   8
   9 path = os.path.dirname(__file__)
  10 while not os.path.exists(os.path.join(path, 'config.status')):
  11     parent = os.path.normpath(os.path.join(path, os.pardir))
  12     if parent == path:
  13         raise Exception("Can't find config.status")
  14     path = parent
  15
  16 path = os.path.join(path, 'config.status')
  17 config = imp.load_module('_buildconfig', open(path), path, ('', 'r', imp.PY_SOURCE))
  18
  19 # Copy values from the config.status namespace into this module namespace.
  20 # This effectively imports topsrcdir, topobjdir, defines, substs, files,
  21 # headers and non_global_defines
  22 for var in config.__all__:
  23     value = getattr(config, var)
  24     if isinstance(value, list) and value and isinstance(value[0], tuple):
  25         value = dict(value)
  26     setattr(sys.modules[__name__], var, value)
  27
  28 for var in os.environ:
  29     if var != 'SHELL' and var in substs:
  30         substs[var] = os.environ[var]