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UXP
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Mirror of roytam1's UXP fork just in case Moonchild and Tobin decide to go after him
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UXP/build/mach_bootstrap.py

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# 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/.
from __future__ import print_function, unicode_literals
import errno
import json
import os
import platform
import random
import subprocess
import sys
import uuid
import __builtin__
from types import ModuleType
STATE_DIR_FIRST_RUN = '''
mach and the build system store shared state in a common directory on the
filesystem. The following directory will be created:
{userdir}
If you would like to use a different directory, hit CTRL+c and set the
MOZBUILD_STATE_PATH environment variable to the directory you would like to
use and re-run mach. For this change to take effect forever, you'll likely
want to export this environment variable from your shell's init scripts.
Press ENTER/RETURN to continue or CTRL+c to abort.
'''.lstrip()
# TODO Bug 794506 Integrate with the in-tree virtualenv configuration.
SEARCH_PATHS = [
'python/mach',
'python/mozboot',
'python/mozbuild',
'python/mozlint',
'python/mozversioncontrol',
'python/blessings',
'python/compare-locales',
'python/configobj',
'python/futures',
'python/jsmin',
'python/psutil',
'python/pylru',
'python/which',
'python/pystache',
'python/pyyaml/lib',
'python/requests',
'python/slugid',
'python/py',
'python/pytest',
'python/redo',
'python/voluptuous',
'build',
'build/pymake',
'config',
'dom/bindings',
'dom/bindings/parser',
'dom/media/test/external',
'layout/tools/reftest',
'other-licenses/ply',
'taskcluster',
'testing',
'testing/firefox-ui/harness',
'testing/marionette/client',
'testing/marionette/harness',
'testing/marionette/harness/marionette_harness/runner/mixins/browsermob-proxy-py',
'testing/marionette/puppeteer/firefox',
'testing/mozbase/mozcrash',
'testing/mozbase/mozdebug',
'testing/mozbase/mozdevice',
'testing/mozbase/mozfile',
'testing/mozbase/mozhttpd',
'testing/mozbase/mozinfo',
'testing/mozbase/mozinstall',
'testing/mozbase/mozleak',
'testing/mozbase/mozlog',
'testing/mozbase/moznetwork',
'testing/mozbase/mozprocess',
'testing/mozbase/mozprofile',
'testing/mozbase/mozrunner',
'testing/mozbase/mozsystemmonitor',
'testing/mozbase/mozscreenshot',
'testing/mozbase/moztest',
'testing/mozbase/mozversion',
'testing/mozbase/manifestparser',
'testing/taskcluster',
'testing/tools/autotry',
'testing/web-platform',
'testing/web-platform/harness',
'testing/web-platform/tests/tools/wptserve',
'testing/xpcshell',
'xpcom/idl-parser',
]
# Individual files providing mach commands.
MACH_MODULES = [
'build/valgrind/mach_commands.py',
'devtools/shared/css/generated/mach_commands.py',
'dom/bindings/mach_commands.py',
'dom/media/test/external/mach_commands.py',
'layout/tools/reftest/mach_commands.py',
'python/mach_commands.py',
'python/mach/mach/commands/commandinfo.py',
'python/mach/mach/commands/settings.py',
'python/compare-locales/mach_commands.py',
'python/mozboot/mozboot/mach_commands.py',
'python/mozbuild/mozbuild/mach_commands.py',
'python/mozbuild/mozbuild/backend/mach_commands.py',
'python/mozbuild/mozbuild/compilation/codecomplete.py',
'python/mozbuild/mozbuild/frontend/mach_commands.py',
'services/common/tests/mach_commands.py',
'taskcluster/mach_commands.py',
'testing/firefox-ui/mach_commands.py',
'testing/mach_commands.py',
'testing/marionette/mach_commands.py',
'testing/mochitest/mach_commands.py',
'testing/mozharness/mach_commands.py',
'testing/talos/mach_commands.py',
'testing/web-platform/mach_commands.py',
'testing/xpcshell/mach_commands.py',
'tools/docs/mach_commands.py',
'tools/lint/mach_commands.py',
'tools/mach_commands.py',
'tools/power/mach_commands.py',
]
if os.path.exists('addon-sdk/mach_commands.py'):
MACH_MODULES += [ 'addon-sdk/mach_commands.py' ]
CATEGORIES = {
'build': {
'short': 'Build Commands',
'long': 'Interact with the build system',
'priority': 80,
},
'post-build': {
'short': 'Post-build Commands',
'long': 'Common actions performed after completing a build.',
'priority': 70,
},
'testing': {
'short': 'Testing',
'long': 'Run tests.',
'priority': 60,
},
'ci': {
'short': 'CI',
'long': 'Taskcluster commands',
'priority': 59
},
'devenv': {
'short': 'Development Environment',
'long': 'Set up and configure your development environment.',
'priority': 50,
},
'build-dev': {
'short': 'Low-level Build System Interaction',
'long': 'Interact with specific parts of the build system.',
'priority': 20,
},
'misc': {
'short': 'Potpourri',
'long': 'Potent potables and assorted snacks.',
'priority': 10,
},
'disabled': {
'short': 'Disabled',
'long': 'The disabled commands are hidden by default. Use -v to display them. These commands are unavailable for your current context, run "mach <command>" to see why.',
'priority': 0,
}
}
# We submit data to telemetry approximately every this many mach invocations
TELEMETRY_SUBMISSION_FREQUENCY = 10
def bootstrap(topsrcdir, mozilla_dir=None):
if mozilla_dir is None:
mozilla_dir = topsrcdir
# Ensure we are running Python 2.7+. We put this check here so we generate a
# user-friendly error message rather than a cryptic stack trace on module
# import.
if sys.version_info[0] != 2 or sys.version_info[1] < 7:
print('Python 2.7 or above (but not Python 3) is required to run mach.')
print('You are running Python', platform.python_version())
sys.exit(1)
# Global build system and mach state is stored in a central directory. By
# default, this is ~/.mozbuild. However, it can be defined via an
# environment variable. We detect first run (by lack of this directory
# existing) and notify the user that it will be created. The logic for
# creation is much simpler for the "advanced" environment variable use
# case. For default behavior, we educate users and give them an opportunity
# to react. We always exit after creating the directory because users don't
# like surprises.
sys.path[0:0] = [os.path.join(mozilla_dir, path) for path in SEARCH_PATHS]
import mach.main
from mozboot.util import get_state_dir
def telemetry_handler(context, data):
# We have not opted-in to telemetry
if 'BUILD_SYSTEM_TELEMETRY' not in os.environ:
return
telemetry_dir = os.path.join(get_state_dir()[0], 'telemetry')
try:
os.mkdir(telemetry_dir)
except OSError as e:
if e.errno != errno.EEXIST:
raise
outgoing_dir = os.path.join(telemetry_dir, 'outgoing')
try:
os.mkdir(outgoing_dir)
except OSError as e:
if e.errno != errno.EEXIST:
raise
# Add common metadata to help submit sorted data later on.
data['argv'] = sys.argv
data.setdefault('system', {}).update(dict(
architecture=list(platform.architecture()),
machine=platform.machine(),
python_version=platform.python_version(),
release=platform.release(),
system=platform.system(),
version=platform.version(),
))
if platform.system() == 'Linux':
dist = list(platform.linux_distribution())
data['system']['linux_distribution'] = dist
elif platform.system() == 'Windows':
win32_ver=list((platform.win32_ver())),
data['system']['win32_ver'] = win32_ver
elif platform.system() == 'Darwin':
# mac version is a special Cupertino snowflake
r, v, m = platform.mac_ver()
data['system']['mac_ver'] = [r, list(v), m]
with open(os.path.join(outgoing_dir, str(uuid.uuid4()) + '.json'),
'w') as f:
json.dump(data, f, sort_keys=True)
def should_skip_dispatch(context, handler):
# The user is performing a maintenance command.
if handler.name in ('bootstrap', 'doctor', 'mach-commands', 'mercurial-setup'):
return True
# We are running in automation.
if 'MOZ_AUTOMATION' in os.environ or 'TASK_ID' in os.environ:
return True
# The environment is likely a machine invocation.
if sys.stdin.closed or not sys.stdin.isatty():
return True
return False
def post_dispatch_handler(context, handler, args):
"""Perform global operations after command dispatch.
For now, we will use this to handle build system telemetry.
"""
# Don't do anything when...
if should_skip_dispatch(context, handler):
return
# We call mach environment in client.mk which would cause the
# data submission below to block the forward progress of make.
if handler.name in ('environment'):
return
# We have not opted-in to telemetry
if 'BUILD_SYSTEM_TELEMETRY' not in os.environ:
return
# Every n-th operation
if random.randint(1, TELEMETRY_SUBMISSION_FREQUENCY) != 1:
return
with open(os.devnull, 'wb') as devnull:
subprocess.Popen([sys.executable,
os.path.join(topsrcdir, 'build',
'submit_telemetry_data.py'),
get_state_dir()[0]],
stdout=devnull, stderr=devnull)
def populate_context(context, key=None):
if key is None:
return
if key == 'state_dir':
state_dir, is_environ = get_state_dir()
if is_environ:
if not os.path.exists(state_dir):
print('Creating global state directory from environment variable: %s'
% state_dir)
os.makedirs(state_dir, mode=0o770)
else:
if not os.path.exists(state_dir):
print(STATE_DIR_FIRST_RUN.format(userdir=state_dir))
try:
sys.stdin.readline()
except KeyboardInterrupt:
sys.exit(1)
print('\nCreating default state directory: %s' % state_dir)
os.makedirs(state_dir, mode=0o770)
return state_dir
if key == 'topdir':
return topsrcdir
if key == 'telemetry_handler':
return telemetry_handler
if key == 'post_dispatch_handler':
return post_dispatch_handler
raise AttributeError(key)
mach = mach.main.Mach(os.getcwd())
mach.populate_context_handler = populate_context
if not mach.settings_paths:
# default global machrc location
mach.settings_paths.append(get_state_dir()[0])
# always load local repository configuration
mach.settings_paths.append(mozilla_dir)
for category, meta in CATEGORIES.items():
mach.define_category(category, meta['short'], meta['long'],
meta['priority'])
for path in MACH_MODULES:
mach.load_commands_from_file(os.path.join(mozilla_dir, path))
return mach
# Hook import such that .pyc/.pyo files without a corresponding .py file in
# the source directory are essentially ignored. See further below for details
# and caveats.
# Objdirs outside the source directory are ignored because in most cases, if
# a .pyc/.pyo file exists there, a .py file will be next to it anyways.
class ImportHook(object):
def __init__(self, original_import):
self._original_import = original_import
# Assume the source directory is the parent directory of the one
# containing this file.
self._source_dir = os.path.normcase(os.path.abspath(
os.path.dirname(os.path.dirname(__file__)))) + os.sep
self._modules = set()
def __call__(self, name, globals=None, locals=None, fromlist=None,
level=-1):
# name might be a relative import. Instead of figuring out what that
# resolves to, which is complex, just rely on the real import.
# Since we don't know the full module name, we can't check sys.modules,
# so we need to keep track of which modules we've already seen to avoid
# to stat() them again when they are imported multiple times.
module = self._original_import(name, globals, locals, fromlist, level)
# Some tests replace modules in sys.modules with non-module instances.
if not isinstance(module, ModuleType):
return module
resolved_name = module.__name__
if resolved_name in self._modules:
return module
self._modules.add(resolved_name)
# Builtin modules don't have a __file__ attribute.
if not hasattr(module, '__file__'):
return module
# Note: module.__file__ is not always absolute.
path = os.path.normcase(os.path.abspath(module.__file__))
# Note: we could avoid normcase and abspath above for non pyc/pyo
# files, but those are actually rare, so it doesn't really matter.
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]):
os.remove(module.__file__)
del sys.modules[module.__name__]
module = self(name, globals, locals, fromlist, level)
return module
# Install our hook
__builtin__.__import__ = ImportHook(__builtin__.__import__)