gecko-dev/servo/mach
Jack Moffitt a6844a78e7 servo: Merge #14039 - Fix test-wpt and test-css for Windows (from metajack:windows-wpt); r=jgraham
<!-- Please describe your changes on the following line: -->
In addition to minor changes for Windows, this forces Windows Python to
be used for all Windows builds (instead of using Windows Python only for
pc-windows-msvc builds).

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [ ] These changes fix #__ (github issue number if applicable).

<!-- Either: -->
- [ ] There are tests for these changes OR
- [x] These changes do not require tests because testing the tests is too meta for me

<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->

Source-Repo: https://github.com/servo/servo
Source-Revision: 17bf6aed21cb966c52382e7cef23d2bd66144874
2016-11-16 13:41:27 -06:00

93 lines
3.8 KiB
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#!/bin/sh
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
# The beginning of this script is both valid shell and valid python,
# such that the script starts with the shell and is reexecuted with
# the right python.
''':' && if [ ! -z "$MSYSTEM" ] ; then exec python "$0" "$@" ; else which python2.7 > /dev/null 2> /dev/null && exec python2.7 "$0" "$@" || exec python "$0" "$@" ; fi
'''
from __future__ import print_function, unicode_literals
import os
import sys
def main(args):
topdir = os.path.abspath(os.path.dirname(sys.argv[0]))
sys.path.insert(0, os.path.join(topdir, "python"))
import mach_bootstrap
mach = mach_bootstrap.bootstrap(topdir)
sys.exit(mach.run(sys.argv[1:]))
if __name__ == '__main__':
if sys.platform == 'win32':
# This is a complete hack to work around the fact that Windows
# multiprocessing needs to import the original module (ie: this
# file), but only works if it has a .py extension.
#
# We do this by a sort of two-level function interposing. The first
# level interposes forking.get_command_line() with our version defined
# in my_get_command_line(). Our version of get_command_line will
# replace the command string with the contents of the fork_interpose()
# function to be used in the subprocess.
#
# The subprocess then gets an interposed imp.find_module(), which we
# hack up to find 'mach' without the .py extension, since we already
# know where it is (it's us!). If we're not looking for 'mach', then
# the original find_module will suffice.
#
# See also: http://bugs.python.org/issue19946
# And: https://bugzilla.mozilla.org/show_bug.cgi?id=914563
import inspect
from multiprocessing import forking
global orig_command_line
def fork_interpose():
import imp
import os
import sys
orig_find_module = imp.find_module
def my_find_module(name, dirs):
if name == 'mach':
path = os.path.join(dirs[0], 'mach')
f = open(path)
return (f, path, ('', 'r', imp.PY_SOURCE))
return orig_find_module(name, dirs)
# Don't allow writing bytecode file for mach module.
orig_load_module = imp.load_module
def my_load_module(name, file, path, description):
# multiprocess.forking invokes imp.load_module manually and
# hard-codes the name __parents_main__ as the module name.
if name == '__parents_main__':
old_bytecode = sys.dont_write_bytecode
sys.dont_write_bytecode = True
try:
return orig_load_module(name, file, path, description)
finally:
sys.dont_write_bytecode = old_bytecode
return orig_load_module(name, file, path, description)
imp.find_module = my_find_module
imp.load_module = my_load_module
from multiprocessing.forking import main; main()
def my_get_command_line():
fork_code, lineno = inspect.getsourcelines(fork_interpose)
# Remove the first line (for 'def fork_interpose():') and the three
# levels of indentation (12 spaces).
fork_string = ''.join(x[12:] for x in fork_code[1:])
cmdline = orig_command_line()
cmdline[2] = fork_string
return cmdline
orig_command_line = forking.get_command_line
forking.get_command_line = my_get_command_line
main(sys.argv)