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https://github.com/mozilla/gecko-dev.git
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c8b4aaeb2d
Backed out changeset 09f7f3d1c6dd (bug 1766497) Backed out changeset 6bb5f754957a (bug 1766497) Backed out changeset aedf2d7af408 (bug 1766497) Backed out changeset 394555265c86 (bug 1766497) Backed out changeset 41be40696e00 (bug 1766497)
112 lines
4.7 KiB
Python
Executable File
112 lines
4.7 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 platform
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import sys
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from textwrap import dedent
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def load_mach(dir_path, mach_path):
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# Defer import of "importlib.util" until after Python version check has happened
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# so that Python 2 usages fail gracefully.
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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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# Ensure we are running Python 3.6+. We run this check as soon as
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# possible to avoid a cryptic import/usage error.
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if sys.version_info < (3, 6):
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print("Python 3.6+ is required to run mach.")
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print("You are running Python", platform.python_version())
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if sys.platform.startswith("linux"):
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print(dedent("""
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See https://firefox-source-docs.mozilla.org/setup/linux_build.html#installingpython
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for guidance on how to install Python on your system.
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""").strip())
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elif sys.platform.startswith("darwin"):
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print(dedent("""
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See https://firefox-source-docs.mozilla.org/setup/macos_build.html
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for guidance on how to prepare your system to build Firefox. Perhaps
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you need to update Xcode, or install Python using brew?
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""").strip())
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elif "MOZILLABUILD" in os.environ and os.environ.get("TERM"):
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print(dedent("""
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Python is provided by MozillaBuild; ensure your MozillaBuild installation is
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up to date. See https://firefox-source-docs.mozilla.org/setup/windows_build.html#install-mozillabuild
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for details.
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""").strip())
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elif sys.platform.startswith("win"):
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print(dedent("""
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You probably want to be interacting with Mach from within MozillaBuild, see
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https://firefox-source-docs.mozilla.org/setup/windows_build.html for details.
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If you are deliberately using Mach from outside MozillaBuild, then see
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https://firefox-source-docs.mozilla.org/mach/windows-usage-outside-mozillabuild.html#install-python
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for guidance on installing native Python on your system.
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""").strip())
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else:
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print(dedent("""
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We do not have specific instructions for your platform on how to
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install Python. You may find Pyenv (https://github.com/pyenv/pyenv)
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helpful, if your system package manager does not provide a way to
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install a recent enough Python 3.
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""").strip())
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sys.exit(1)
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if sys.version_info >= (3, 10) and sys.platform.startswith("darwin"):
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version = f"{sys.version_info[0]}.{sys.version_info[1]}"
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if f"python@{version}" in sys.executable:
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print(dedent(f"""
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You are using python {version} from homebrew.
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There is a bug in virtualenv that prevents us from starting up mach in that situation.
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Please uninstall it with the following and try again:
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brew unlink python@{version}
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If you need python {version} later, you can re-link it with:
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brew link python@{version}
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""").strip())
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sys.exit(1)
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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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