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As part of this, the shell-script part of `./mach` can be removed, making it pure Python. There's a change in `--profile-command` behaviour, though: it now only profiles the specific command, rather than all of Mach. This is because _so much of Mach_ has already been run before CLI arguments are parsed in the Python process. If a developer wants to profile Mach itself, they can manually run `python3 -m cProfile -o <file> ./mach ...` Differential Revision: https://phabricator.services.mozilla.com/D133928
53 lines
1.8 KiB
Python
Executable File
53 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python3
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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from __future__ import absolute_import, print_function, unicode_literals
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import os
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import sys
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def load_mach(dir_path, mach_path):
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import importlib.util
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spec = importlib.util.spec_from_file_location('mach_initialize', mach_path)
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mach_initialize = importlib.util.module_from_spec(spec)
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spec.loader.exec_module(mach_initialize)
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return mach_initialize.initialize(dir_path)
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def check_and_get_mach(dir_path):
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initialize_paths = (
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# Run Thunderbird's mach_initialize.py if it exists
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'comm/build/mach_initialize.py',
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'build/mach_initialize.py',
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# test package initialize
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'tools/mach_initialize.py',
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)
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for initialize_path in initialize_paths:
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mach_path = os.path.join(dir_path, initialize_path)
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if os.path.isfile(mach_path):
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return load_mach(dir_path, mach_path)
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return None
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def main(args):
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# XCode python sets __PYVENV_LAUNCHER__, which overrides the executable
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# used when a python subprocess is created. This is an issue when we want
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# to run using our virtualenv python executables.
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# In future Python relases, __PYVENV_LAUNCHER__ will be cleared before
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# application code (mach) is started.
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# https://github.com/python/cpython/pull/9516
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os.environ.pop("__PYVENV_LAUNCHER__", None)
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mach = check_and_get_mach(os.path.dirname(os.path.realpath(__file__)))
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if not mach:
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print('Could not run mach: No mach source directory found.')
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sys.exit(1)
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sys.exit(mach.run(args))
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if __name__ == '__main__':
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main(sys.argv[1:])
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