зеркало из https://github.com/mozilla/gecko-dev.git
512 строки
19 KiB
Python
512 строки
19 KiB
Python
# 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 division, print_function, unicode_literals
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import math
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import os
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import platform
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import shutil
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import site
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import sys
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if sys.version_info[0] < 3:
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import __builtin__ as builtins
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else:
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import builtins
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from types import ModuleType
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STATE_DIR_FIRST_RUN = """
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mach and the build system store shared state in a common directory on the
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filesystem. The following directory will be created:
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{userdir}
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If you would like to use a different directory, hit CTRL+c and set the
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MOZBUILD_STATE_PATH environment variable to the directory you would like to
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use and re-run mach. For this change to take effect forever, you'll likely
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want to export this environment variable from your shell's init scripts.
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Press ENTER/RETURN to continue or CTRL+c to abort.
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""".lstrip()
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# Individual files providing mach commands.
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MACH_MODULES = [
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"build/valgrind/mach_commands.py",
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"devtools/shared/css/generated/mach_commands.py",
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"dom/bindings/mach_commands.py",
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"js/src/devtools/rootAnalysis/mach_commands.py",
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"layout/tools/reftest/mach_commands.py",
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"mobile/android/mach_commands.py",
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"python/mach/mach/commands/commandinfo.py",
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"python/mach/mach/commands/settings.py",
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"python/mach_commands.py",
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"python/mozboot/mozboot/mach_commands.py",
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"python/mozbuild/mozbuild/artifact_commands.py",
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"python/mozbuild/mozbuild/backend/mach_commands.py",
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"python/mozbuild/mozbuild/build_commands.py",
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"python/mozbuild/mozbuild/code_analysis/mach_commands.py",
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"python/mozbuild/mozbuild/compilation/codecomplete.py",
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"python/mozbuild/mozbuild/frontend/mach_commands.py",
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"python/mozbuild/mozbuild/vendor/mach_commands.py",
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"python/mozbuild/mozbuild/mach_commands.py",
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"python/mozperftest/mozperftest/mach_commands.py",
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"python/mozrelease/mozrelease/mach_commands.py",
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"remote/mach_commands.py",
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"security/manager/tools/mach_commands.py",
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"taskcluster/mach_commands.py",
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"testing/awsy/mach_commands.py",
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"testing/condprofile/mach_commands.py",
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"testing/firefox-ui/mach_commands.py",
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"testing/geckodriver/mach_commands.py",
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"testing/mach_commands.py",
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"testing/marionette/mach_commands.py",
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"testing/mochitest/mach_commands.py",
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"testing/mozharness/mach_commands.py",
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"testing/raptor/mach_commands.py",
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"testing/talos/mach_commands.py",
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"testing/tps/mach_commands.py",
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"testing/web-platform/mach_commands.py",
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"testing/xpcshell/mach_commands.py",
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"toolkit/components/telemetry/tests/marionette/mach_commands.py",
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"tools/browsertime/mach_commands.py",
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"tools/compare-locales/mach_commands.py",
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"tools/lint/mach_commands.py",
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"tools/mach_commands.py",
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"tools/moztreedocs/mach_commands.py",
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"tools/phabricator/mach_commands.py",
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"tools/power/mach_commands.py",
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"tools/tryselect/mach_commands.py",
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"tools/vcs/mach_commands.py",
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]
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CATEGORIES = {
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"build": {
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"short": "Build Commands",
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"long": "Interact with the build system",
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"priority": 80,
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},
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"post-build": {
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"short": "Post-build Commands",
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"long": "Common actions performed after completing a build.",
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"priority": 70,
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},
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"testing": {
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"short": "Testing",
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"long": "Run tests.",
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"priority": 60,
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},
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"ci": {
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"short": "CI",
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"long": "Taskcluster commands",
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"priority": 59,
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},
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"devenv": {
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"short": "Development Environment",
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"long": "Set up and configure your development environment.",
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"priority": 50,
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},
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"build-dev": {
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"short": "Low-level Build System Interaction",
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"long": "Interact with specific parts of the build system.",
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"priority": 20,
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},
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"misc": {
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"short": "Potpourri",
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"long": "Potent potables and assorted snacks.",
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"priority": 10,
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},
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"release": {
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"short": "Release automation",
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"long": "Commands for used in release automation.",
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"priority": 5,
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},
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"disabled": {
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"short": "Disabled",
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"long": "The disabled commands are hidden by default. Use -v to display them. "
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"These commands are unavailable for your current context, "
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'run "mach <command>" to see why.',
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"priority": 0,
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},
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}
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def search_path(mozilla_dir, packages_txt):
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with open(os.path.join(mozilla_dir, packages_txt)) as f:
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packages = [line.rstrip().split(":") for line in f]
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def handle_package(package):
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if package[0] == "optional":
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try:
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for path in handle_package(package[1:]):
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yield path
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except Exception:
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pass
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if package[0] in ("windows", "!windows"):
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for_win = not package[0].startswith("!")
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is_win = sys.platform == "win32"
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if is_win == for_win:
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for path in handle_package(package[1:]):
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yield path
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if package[0] in ("python2", "python3"):
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for_python3 = package[0].endswith("3")
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is_python3 = sys.version_info[0] > 2
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if is_python3 == for_python3:
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for path in handle_package(package[1:]):
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yield path
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if package[0] == "packages.txt":
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assert len(package) == 2
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for p in search_path(mozilla_dir, package[1]):
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yield os.path.join(mozilla_dir, p)
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if package[0].endswith(".pth"):
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assert len(package) == 2
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yield os.path.join(mozilla_dir, package[1])
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for package in packages:
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for path in handle_package(package):
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yield path
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def mach_sys_path(mozilla_dir):
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return [
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os.path.join(mozilla_dir, path)
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for path in search_path(mozilla_dir, "build/mach_virtualenv_packages.txt")
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]
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def bootstrap(topsrcdir):
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# Ensure we are running Python 2.7 or 3.5+. We put this check here so we
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# generate a user-friendly error message rather than a cryptic stack trace
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# on module import.
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major, minor = sys.version_info[:2]
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if (major == 2 and minor < 7) or (major == 3 and minor < 5):
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print("Python 2.7 or Python 3.5+ is required to run mach.")
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print("You are running Python", platform.python_version())
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sys.exit(1)
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# This directory was deleted in bug 1666345, but there may be some ignored
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# files here. We can safely just delete it for the user so they don't have
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# to clean the repo themselves.
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deleted_dir = os.path.join(topsrcdir, "third_party", "python", "psutil")
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if os.path.exists(deleted_dir):
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shutil.rmtree(deleted_dir, ignore_errors=True)
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if major == 3 and sys.prefix == sys.base_prefix:
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# We are not in a virtualenv. Remove global site packages
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# from sys.path.
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# Note that we don't ever invoke mach from a Python 2 virtualenv,
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# and "sys.base_prefix" doesn't exist before Python 3.3, so we
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# guard with the "major == 3" check.
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site_paths = set(site.getsitepackages() + [site.getusersitepackages()])
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sys.path = [path for path in sys.path if path not in site_paths]
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# Global build system and mach state is stored in a central directory. By
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# default, this is ~/.mozbuild. However, it can be defined via an
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# environment variable. We detect first run (by lack of this directory
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# existing) and notify the user that it will be created. The logic for
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# creation is much simpler for the "advanced" environment variable use
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# case. For default behavior, we educate users and give them an opportunity
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# to react. We always exit after creating the directory because users don't
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# like surprises.
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sys.path[0:0] = mach_sys_path(topsrcdir)
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import mach.base
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import mach.main
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from mach.util import setenv
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from mozboot.util import get_state_dir
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# Set a reasonable limit to the number of open files.
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#
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# Some linux systems set `ulimit -n` to a very high number, which works
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# well for systems that run servers, but this setting causes performance
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# problems when programs close file descriptors before forking, like
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# Python's `subprocess.Popen(..., close_fds=True)` (close_fds=True is the
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# default in Python 3), or Rust's stdlib. In some cases, Firefox does the
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# same thing when spawning processes. We would prefer to lower this limit
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# to avoid such performance problems; processes spawned by `mach` will
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# inherit the limit set here.
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#
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# The Firefox build defaults the soft limit to 1024, except for builds that
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# do LTO, where the soft limit is 8192. We're going to default to the
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# latter, since people do occasionally do LTO builds on their local
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# machines, and requiring them to discover another magical setting after
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# setting up an LTO build in the first place doesn't seem good.
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#
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# This code mimics the code in taskcluster/scripts/run-task.
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try:
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import resource
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# Keep the hard limit the same, though, allowing processes to change
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# their soft limit if they need to (Firefox does, for instance).
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(soft, hard) = resource.getrlimit(resource.RLIMIT_NOFILE)
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# Permit people to override our default limit if necessary via
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# MOZ_LIMIT_NOFILE, which is the same variable `run-task` uses.
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limit = os.environ.get("MOZ_LIMIT_NOFILE")
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if limit:
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limit = int(limit)
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else:
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# If no explicit limit is given, use our default if it's less than
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# the current soft limit. For instance, the default on macOS is
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# 256, so we'd pick that rather than our default.
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limit = min(soft, 8192)
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# Now apply the limit, if it's different from the original one.
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if limit != soft:
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resource.setrlimit(resource.RLIMIT_NOFILE, (limit, hard))
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except ImportError:
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# The resource module is UNIX only.
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pass
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from mozbuild.util import patch_main
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patch_main()
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def resolve_repository():
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import mozversioncontrol
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try:
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# This API doesn't respect the vcs binary choices from configure.
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# If we ever need to use the VCS binary here, consider something
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# more robust.
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return mozversioncontrol.get_repository_object(path=topsrcdir)
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except (mozversioncontrol.InvalidRepoPath, mozversioncontrol.MissingVCSTool):
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return None
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def pre_dispatch_handler(context, handler, args):
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# If --disable-tests flag was enabled in the mozconfig used to compile
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# the build, tests will be disabled. Instead of trying to run
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# nonexistent tests then reporting a failure, this will prevent mach
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# from progressing beyond this point.
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if handler.category == "testing" and not handler.ok_if_tests_disabled:
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from mozbuild.base import BuildEnvironmentNotFoundException
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try:
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from mozbuild.base import MozbuildObject
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# all environments should have an instance of build object.
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build = MozbuildObject.from_environment()
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if build is not None and hasattr(build, "mozconfig"):
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ac_options = build.mozconfig["configure_args"]
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if ac_options and "--disable-tests" in ac_options:
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print(
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"Tests have been disabled by mozconfig with the flag "
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+ '"ac_add_options --disable-tests".\n'
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+ "Remove the flag, and re-compile to enable tests."
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)
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sys.exit(1)
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except BuildEnvironmentNotFoundException:
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# likely automation environment, so do nothing.
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pass
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def post_dispatch_handler(
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context, handler, instance, success, start_time, end_time, depth, args
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):
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"""Perform global operations after command dispatch.
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For now, we will use this to handle build system telemetry.
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"""
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# Don't finalize telemetry data if this mach command was invoked as part of
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# another mach command.
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if depth != 1:
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return
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_finalize_telemetry_glean(
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context.telemetry, handler.name == "bootstrap", success
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)
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def populate_context(key=None):
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if key is None:
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return
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if key == "state_dir":
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state_dir = get_state_dir()
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if state_dir == os.environ.get("MOZBUILD_STATE_PATH"):
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if not os.path.exists(state_dir):
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print(
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"Creating global state directory from environment variable: %s"
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% state_dir
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)
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os.makedirs(state_dir, mode=0o770)
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else:
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if not os.path.exists(state_dir):
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if not os.environ.get("MOZ_AUTOMATION"):
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print(STATE_DIR_FIRST_RUN.format(userdir=state_dir))
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try:
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sys.stdin.readline()
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except KeyboardInterrupt:
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sys.exit(1)
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print("\nCreating default state directory: %s" % state_dir)
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os.makedirs(state_dir, mode=0o770)
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return state_dir
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if key == "local_state_dir":
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return get_state_dir(srcdir=True)
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if key == "topdir":
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return topsrcdir
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if key == "pre_dispatch_handler":
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return pre_dispatch_handler
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if key == "post_dispatch_handler":
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return post_dispatch_handler
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if key == "repository":
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return resolve_repository()
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raise AttributeError(key)
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# Note which process is top-level so that recursive mach invocations can avoid writing
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# telemetry data.
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if "MACH_MAIN_PID" not in os.environ:
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setenv("MACH_MAIN_PID", str(os.getpid()))
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driver = mach.main.Mach(os.getcwd())
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driver.populate_context_handler = populate_context
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if not driver.settings_paths:
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# default global machrc location
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driver.settings_paths.append(get_state_dir())
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# always load local repository configuration
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driver.settings_paths.append(topsrcdir)
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for category, meta in CATEGORIES.items():
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driver.define_category(category, meta["short"], meta["long"], meta["priority"])
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# Sparse checkouts may not have all mach_commands.py files. Ignore
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# errors from missing files. Same for spidermonkey tarballs.
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repo = resolve_repository()
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missing_ok = (
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repo is not None and repo.sparse_checkout_present()
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) or os.path.exists(os.path.join(topsrcdir, "INSTALL"))
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for path in MACH_MODULES:
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try:
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driver.load_commands_from_file(os.path.join(topsrcdir, path))
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except mach.base.MissingFileError:
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if not missing_ok:
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raise
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return driver
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def _finalize_telemetry_glean(telemetry, is_bootstrap, success):
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"""Submit telemetry collected by Glean.
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Finalizes some metrics (command success state and duration, system information) and
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requests Glean to send the collected data.
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"""
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from mach.telemetry import MACH_METRICS_PATH
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from mozbuild.telemetry import (
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get_cpu_brand,
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get_distro_and_version,
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get_psutil_stats,
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)
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mach_metrics = telemetry.metrics(MACH_METRICS_PATH)
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mach_metrics.mach.duration.stop()
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mach_metrics.mach.success.set(success)
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system_metrics = mach_metrics.mach.system
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system_metrics.cpu_brand.set(get_cpu_brand())
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distro, version = get_distro_and_version()
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system_metrics.distro.set(distro)
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system_metrics.distro_version.set(version)
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has_psutil, logical_cores, physical_cores, memory_total = get_psutil_stats()
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if has_psutil:
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# psutil may not be available (we allow `mach create-mach-environment`
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# to fail to install it).
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system_metrics.logical_cores.add(logical_cores)
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system_metrics.physical_cores.add(physical_cores)
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if memory_total is not None:
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system_metrics.memory.accumulate(
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int(math.ceil(float(memory_total) / (1024 * 1024 * 1024)))
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)
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telemetry.submit(is_bootstrap)
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# Hook import such that .pyc/.pyo files without a corresponding .py file in
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# the source directory are essentially ignored. See further below for details
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# and caveats.
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# Objdirs outside the source directory are ignored because in most cases, if
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# a .pyc/.pyo file exists there, a .py file will be next to it anyways.
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class ImportHook(object):
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def __init__(self, original_import):
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self._original_import = original_import
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# Assume the source directory is the parent directory of the one
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# containing this file.
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self._source_dir = (
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os.path.normcase(
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os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
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)
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+ os.sep
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)
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self._modules = set()
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def __call__(self, name, globals=None, locals=None, fromlist=None, level=-1):
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if sys.version_info[0] >= 3 and level < 0:
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level = 0
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# name might be a relative import. Instead of figuring out what that
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# resolves to, which is complex, just rely on the real import.
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# Since we don't know the full module name, we can't check sys.modules,
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# so we need to keep track of which modules we've already seen to avoid
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# to stat() them again when they are imported multiple times.
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module = self._original_import(name, globals, locals, fromlist, level)
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# Some tests replace modules in sys.modules with non-module instances.
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if not isinstance(module, ModuleType):
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return module
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resolved_name = module.__name__
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if resolved_name in self._modules:
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return module
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self._modules.add(resolved_name)
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# Builtin modules don't have a __file__ attribute.
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if not getattr(module, "__file__", None):
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return module
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# Note: module.__file__ is not always absolute.
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path = os.path.normcase(os.path.abspath(module.__file__))
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# Note: we could avoid normcase and abspath above for non pyc/pyo
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# files, but those are actually rare, so it doesn't really matter.
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|
if not path.endswith((".pyc", ".pyo")):
|
|
return module
|
|
|
|
# Ignore modules outside our source directory
|
|
if not path.startswith(self._source_dir):
|
|
return module
|
|
|
|
# If there is no .py corresponding to the .pyc/.pyo module we're
|
|
# loading, remove the .pyc/.pyo file, and reload the module.
|
|
# Since we already loaded the .pyc/.pyo module, if it had side
|
|
# effects, they will have happened already, and loading the module
|
|
# with the same name, from another directory may have the same side
|
|
# effects (or different ones). We assume it's not a problem for the
|
|
# python modules under our source directory (either because it
|
|
# doesn't happen or because it doesn't matter).
|
|
if not os.path.exists(module.__file__[:-1]):
|
|
if os.path.exists(module.__file__):
|
|
os.remove(module.__file__)
|
|
del sys.modules[module.__name__]
|
|
module = self(name, globals, locals, fromlist, level)
|
|
|
|
return module
|
|
|
|
|
|
# Install our hook. This can be deleted when the Python 3 migration is complete.
|
|
if sys.version_info[0] < 3:
|
|
builtins.__import__ = ImportHook(builtins.__import__)
|