mach

   1 #!/bin/sh
   2 # This Source Code Form is subject to the terms of the Mozilla Public
   3 # License, v. 2.0. If a copy of the MPL was not distributed with this
   4 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   5
   6 # The beginning of this script is both valid shell and valid python,
   7 # such that the script starts with the shell and is reexecuted with
   8 # the right python.
   9 '''which' python2.7 > /dev/null && exec python2.7 "$0" "$@" || exec python "$0" "$@"
  10 '''
  11
  12 from __future__ import print_function, unicode_literals
  13
  14 import os
  15 import sys
  16
  17 def ancestors(path):
  18     while path:
  19         yield path
  20         (path, child) = os.path.split(path)
  21         if child == "":
  22             break
  23
  24 def load_mach(topsrcdir):
  25     sys.path[0:0] = [os.path.join(topsrcdir, "build")]
  26     import mach_bootstrap
  27     return mach_bootstrap.bootstrap(topsrcdir)
  28
  29 def main(args):
  30     # Check whether the current directory is within a mach src or obj dir.
  31     for dir_path in ancestors(os.getcwd()):
  32         # If we find a "mozinfo.json" file, we are in the objdir.
  33         mozinfo_path = os.path.join(dir_path, 'mozinfo.json')
  34         if os.path.isfile(mozinfo_path):
  35             import json
  36             info = json.load(open(mozinfo_path))
  37             if 'mozconfig' in info and 'MOZCONFIG' not in os.environ:
  38                 # If the MOZCONFIG environment variable is not already set, set it
  39                 # to the value from mozinfo.json.  This will tell the build system
  40                 # to look for a config file at the path in $MOZCONFIG rather than
  41                 # its default locations.
  42                 #
  43                 # Note: subprocess requires native strings in os.environ on Windows
  44                 os.environ[b'MOZCONFIG'] = str(info['mozconfig'])
  45
  46             if 'topsrcdir' in info:
  47                 # Continue searching for mach_bootstrap in the source directory.
  48                 dir_path = info['topsrcdir']
  49
  50         # If we find the mach bootstrap module, we are in the srcdir.
  51         mach_path = os.path.join(dir_path, 'build/mach_bootstrap.py')
  52         if os.path.isfile(mach_path):
  53             mach = load_mach(dir_path)
  54             sys.exit(mach.run(args[1:]))
  55
  56     print('Could not run mach: No mach source directory found.')
  57     sys.exit(1)
  58
  59
  60 if __name__ == '__main__':
  61     main(sys.argv)