зеркало из https://github.com/mozilla/gecko-dev.git
427 строки
16 KiB
Python
427 строки
16 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 print_function, unicode_literals
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import errno
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import json
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import os
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import platform
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import subprocess
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import sys
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import uuid
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import __builtin__
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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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'layout/tools/reftest/mach_commands.py',
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'python/mach_commands.py',
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'python/safety/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/mozboot/mozboot/mach_commands.py',
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'python/mozbuild/mozbuild/mach_commands.py',
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'python/mozbuild/mozbuild/backend/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/mozrelease/mozrelease/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/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/tps/mach_commands.py',
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'testing/talos/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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'tools/compare-locales/mach_commands.py',
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'tools/docs/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/power/mach_commands.py',
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'tools/tryselect/mach_commands.py',
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'mobile/android/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 bootstrap(topsrcdir, mozilla_dir=None):
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if mozilla_dir is None:
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mozilla_dir = topsrcdir
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# Ensure we are running Python 2.7+. We put this check here so we generate a
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# user-friendly error message rather than a cryptic stack trace on module
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# import.
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if sys.version_info[0] != 2 or sys.version_info[1] < 7:
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print('Python 2.7 or above (but not Python 3) 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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# 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] = [os.path.join(mozilla_dir, path)
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for path in search_path(mozilla_dir,
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'build/virtualenv_packages.txt')]
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import mach.base
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import mach.main
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from mozboot.util import get_state_dir
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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=mozilla_dir)
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except (mozversioncontrol.InvalidRepoPath,
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mozversioncontrol.MissingVCSTool):
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return None
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def should_skip_telemetry_submission(handler):
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# The user is performing a maintenance command.
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if handler.name in ('bootstrap', 'doctor', 'mach-commands', 'vcs-setup',
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# We call mach environment in client.mk which would cause the
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# data submission to block the forward progress of make.
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'environment'):
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return True
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# Never submit data when running in automation or when running tests.
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if any(e in os.environ for e in ('MOZ_AUTOMATION', 'TASK_ID', 'MACH_TELEMETRY_NO_SUBMIT')):
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return True
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return False
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def post_dispatch_handler(context, handler, instance, result,
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start_time, end_time, depth, args):
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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 write telemetry data if this mach command was invoked as part of another
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# mach command.
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if depth != 1 or os.environ.get('MACH_MAIN_PID') != str(os.getpid()):
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return
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# We have not opted-in to telemetry
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if not context.settings.build.telemetry:
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return
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from mozbuild.telemetry import gather_telemetry
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from mozbuild.base import MozbuildObject
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import mozpack.path as mozpath
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if not isinstance(instance, MozbuildObject):
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instance = MozbuildObject.from_environment()
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try:
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substs = instance.substs
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except Exception:
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substs = {}
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# We gather telemetry for every operation.
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paths = {
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instance.topsrcdir: '$topsrcdir/',
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instance.topobjdir: '$topobjdir/',
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mozpath.normpath(os.path.expanduser('~')): '$HOME/',
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}
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# This might override one of the existing entries, that's OK.
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# We don't use a sigil here because we treat all arguments as potentially relative
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# paths, so we'd like to get them back as they were specified.
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paths[mozpath.normpath(os.getcwd())] = ''
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data = gather_telemetry(command=handler.name, success=(result == 0),
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start_time=start_time, end_time=end_time,
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mach_context=context, substs=substs,
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paths=paths)
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if data:
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telemetry_dir = os.path.join(get_state_dir()[0], 'telemetry')
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try:
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os.mkdir(telemetry_dir)
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except OSError as e:
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if e.errno != errno.EEXIST:
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raise
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outgoing_dir = os.path.join(telemetry_dir, 'outgoing')
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try:
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os.mkdir(outgoing_dir)
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except OSError as e:
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if e.errno != errno.EEXIST:
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raise
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with open(os.path.join(outgoing_dir, str(uuid.uuid4()) + '.json'),
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'w') as f:
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json.dump(data, f, sort_keys=True)
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if should_skip_telemetry_submission(handler):
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return True
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state_dir, _ = get_state_dir()
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machpath = os.path.join(instance.topsrcdir, 'mach')
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with open(os.devnull, 'wb') as devnull:
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subprocess.Popen([sys.executable, machpath, 'python',
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'--no-virtualenv',
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os.path.join(topsrcdir, 'build',
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'submit_telemetry_data.py'),
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state_dir],
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stdout=devnull, stderr=devnull)
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def populate_context(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, is_environ = get_state_dir()
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if is_environ:
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if not os.path.exists(state_dir):
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print('Creating global state directory from environment variable: %s'
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% state_dir)
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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 == 'topdir':
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return topsrcdir
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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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os.environ[b'MACH_MAIN_PID'] = str(os.getpid()).encode('ascii')
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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()[0])
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# always load local repository configuration
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driver.settings_paths.append(mozilla_dir)
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for category, meta in CATEGORIES.items():
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driver.define_category(category, meta['short'], meta['long'],
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meta['priority'])
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repo = resolve_repository()
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for path in MACH_MODULES:
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# Sparse checkouts may not have all mach_commands.py files. Ignore
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# errors from missing files.
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try:
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driver.load_commands_from_file(os.path.join(mozilla_dir, path))
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except mach.base.MissingFileError:
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if not repo or not repo.sparse_checkout_present():
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raise
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return driver
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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 = os.path.normcase(os.path.abspath(
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os.path.dirname(os.path.dirname(__file__)))) + os.sep
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self._modules = set()
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def __call__(self, name, globals=None, locals=None, fromlist=None,
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level=-1):
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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 hasattr(module, '__file__'):
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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')):
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return module
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# Ignore modules outside our source directory
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if not path.startswith(self._source_dir):
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return module
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# If there is no .py corresponding to the .pyc/.pyo module we're
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# loading, remove the .pyc/.pyo file, and reload the module.
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# Since we already loaded the .pyc/.pyo module, if it had side
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# effects, they will have happened already, and loading the module
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# with the same name, from another directory may have the same side
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# effects (or different ones). We assume it's not a problem for the
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# python modules under our source directory (either because it
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# doesn't happen or because it doesn't matter).
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if not os.path.exists(module.__file__[:-1]):
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if os.path.exists(module.__file__):
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os.remove(module.__file__)
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del sys.modules[module.__name__]
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module = self(name, globals, locals, fromlist, level)
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return module
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# Install our hook
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__builtin__.__import__ = ImportHook(__builtin__.__import__)
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