Source code

Revision control

Other Tools

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(dir_path, mach_path):
25
import imp
26
with open(mach_path, 'r') as fh:
27
imp.load_module('mach_bootstrap', fh, mach_path,
28
('.py', 'r', imp.PY_SOURCE))
29
import mach_bootstrap
30
return mach_bootstrap.bootstrap(dir_path)
31
32
33
def check_and_get_mach(dir_path):
34
bootstrap_paths = (
35
'build/mach_bootstrap.py',
36
# test package bootstrap
37
'tools/mach_bootstrap.py',
38
)
39
for bootstrap_path in bootstrap_paths:
40
mach_path = os.path.join(dir_path, bootstrap_path)
41
if os.path.isfile(mach_path):
42
return load_mach(dir_path, mach_path)
43
return None
44
45
46
def get_mach():
47
# Check whether the current directory is within a mach src or obj dir.
48
for dir_path in ancestors(os.getcwd()):
49
# If we find a "config.status" and "mozinfo.json" file, we are in the objdir.
50
config_status_path = os.path.join(dir_path, 'config.status')
51
mozinfo_path = os.path.join(dir_path, 'mozinfo.json')
52
if os.path.isfile(config_status_path) and os.path.isfile(mozinfo_path):
53
import json
54
info = json.load(open(mozinfo_path))
55
if 'mozconfig' in info and 'MOZCONFIG' not in os.environ:
56
# If the MOZCONFIG environment variable is not already set, set it
57
# to the value from mozinfo.json. This will tell the build system
58
# to look for a config file at the path in $MOZCONFIG rather than
59
# its default locations.
60
#
61
# Note: subprocess requires native strings in os.environ on Windows
62
os.environ[b'MOZCONFIG'] = str(info['mozconfig'])
63
64
if 'topsrcdir' in info:
65
# Continue searching for mach_bootstrap in the source directory.
66
dir_path = info['topsrcdir']
67
68
mach = check_and_get_mach(dir_path)
69
if mach:
70
return mach
71
72
# If we didn't find a source path by scanning for a mozinfo.json, check
73
# whether the directory containing this script is a source directory. We
74
# follow symlinks so mach can be run even if cwd is outside the srcdir.
75
return check_and_get_mach(os.path.dirname(os.path.realpath(__file__)))
76
77
def main(args):
78
mach = get_mach()
79
if not mach:
80
print('Could not run mach: No mach source directory found.')
81
sys.exit(1)
82
sys.exit(mach.run(args))
83
84
85
if __name__ == '__main__':
86
main(sys.argv[1:])