mach

   1 #!/usr/bin/env python
   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 from __future__ import print_function, unicode_literals
   7
   8 import os
   9 import sys
  10
  11 def ancestors(path):
  12     while path:
  13         yield path
  14         (path, child) = os.path.split(path)
  15         if child == "":
  16             break
  17
  18 def load_mach(topsrcdir):
  19     sys.path[0:0] = [os.path.join(topsrcdir, "build")]
  20     import mach_bootstrap
  21     return mach_bootstrap.bootstrap(topsrcdir)
  22
  23 # Check whether the current directory is within a mach src or obj dir.
  24 for dir_path in ancestors(os.getcwd()):
  25     # If we find a "mozinfo.json" file, we are in the objdir.
  26     mozinfo_path = os.path.join(dir_path, "mozinfo.json")
  27     if os.path.isfile(mozinfo_path):
  28         import json
  29         info = json.load(open(mozinfo_path))
  30         if "mozconfig" in info and "MOZCONFIG" not in os.environ:
  31             # If the MOZCONFIG environment variable is not already set, set it
  32             # to the value from mozinfo.json.  This will tell the build system
  33             # to look for a config file at the path in $MOZCONFIG rather than
  34             # its default locations.
  35             #
  36             # Note: subprocess requires native strings in os.environ Python
  37             # 2.7.2 and earlier on Windows.
  38             os.environ[b"MOZCONFIG"] = str(info["mozconfig"])
  39
  40         if "topsrcdir" in info:
  41             # Continue searching for mach_bootstrap in the source directory.
  42             dir_path = info["topsrcdir"]
  43
  44     # If we find the mach bootstrap module, we are in the srcdir.
  45     mach_path = os.path.join(dir_path, "build/mach_bootstrap.py")
  46     if os.path.isfile(mach_path):
  47         mach = load_mach(dir_path)
  48         sys.exit(mach.run(sys.argv[1:]))
  49
  50 print("Could not run mach: No mach source directory found")
  51 sys.exit(1)