config/pythonpath.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 """
   6 Run a python script, adding extra directories to the python path.
   7 """
   8
   9
  10 def main(args):
  11     def usage():
  12         print >>sys.stderr, "pythonpath.py -I directory script.py [args...]"
  13         sys.exit(150)
  14
  15     paths = []
  16
  17     while True:
  18         try:
  19             arg = args[0]
  20         except IndexError:
  21             usage()
  22
  23         if arg == '-I':
  24             args.pop(0)
  25             try:
  26                 path = args.pop(0)
  27             except IndexError:
  28                 usage()
  29
  30             paths.append(os.path.abspath(path))
  31             continue
  32
  33         if arg.startswith('-I'):
  34             paths.append(os.path.abspath(args.pop(0)[2:]))
  35             continue
  36
  37         break
  38
  39     script = args[0]
  40
  41     sys.path[0:0] = [os.path.abspath(os.path.dirname(script))] + paths
  42     sys.argv = args
  43     sys.argc = len(args)
  44
  45     frozenglobals['__name__'] = '__main__'
  46     frozenglobals['__file__'] = script
  47
  48     execfile(script, frozenglobals)
  49
  50 # Freeze scope here ... why this makes things work I have no idea ...
  51 frozenglobals = globals()
  52
  53 import sys, os
  54
  55 if __name__ == '__main__':
  56     main(sys.argv[1:])