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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 https://mozilla.org/MPL/2.0/.
import argparse
import os
from mach.decorators import _MachCommand
from mozbuild.base import MachCommandBase
class MutlhCommandBase(MachCommandBase):
@property
def virtualenv_manager(self):
from mozboot.util import get_state_dir
from .site import MutlhCommandSiteManager
if self._virtualenv_manager is None:
self._virtualenv_manager = MutlhCommandSiteManager.from_environment(
self.topsrcdir,
lambda: get_state_dir(specific_to_topsrcdir=True, topsrcdir=self.topsrcdir),
self._virtualenv_name,
os.path.join(self.topobjdir, "_virtualenvs"),
)
return self._virtualenv_manager
class _MutlhCommand(_MachCommand):
def create_instance(self, context, virtualenv_name):
metrics = None
if self.metrics_path:
metrics = context.telemetry.metrics(self.metrics_path)
# This ensures the resulting class is defined inside `mach` so that logging
# works as expected, and has a meaningful name
subclass = type(self.name, (MutlhCommandBase,), {})
if virtualenv_name is None:
virtualenv_name = "tb_common"
return subclass(
context,
virtualenv_name=virtualenv_name,
metrics=metrics,
no_auto_log=self.no_auto_log,
)
class Command(object):
def __init__(self, name, metrics_path=None, **kwargs):
self._mach_command = _MutlhCommand(name=name, **kwargs)
self._mach_command.metrics_path = metrics_path
def __call__(self, func):
if not hasattr(func, "_mach_command"):
func._mach_command = _MutlhCommand()
func._mach_command |= self._mach_command
func._mach_command.register(func)
return func
class SubCommand(object):
global_order = 0
def __init__(
self,
command,
subcommand,
description=None,
parser=None,
metrics_path=None,
virtualenv_name=None,
):
self._mach_command = _MutlhCommand(
name=command,
subcommand=subcommand,
description=description,
parser=parser,
virtualenv_name=virtualenv_name,
)
self._mach_command.decl_order = SubCommand.global_order
SubCommand.global_order += 1
self._mach_command.metrics_path = metrics_path
def __call__(self, func):
if not hasattr(func, "_mach_command"):
func._mach_command = _MutlhCommand()
func._mach_command |= self._mach_command
func._mach_command.register(func)
return func
class CommandArgument(object):
def __init__(self, *args, **kwargs):
if kwargs.get("nargs") == argparse.REMAINDER:
# These are the assertions we make in dispatcher.py about
# those types of CommandArguments.
assert len(args) == 1
assert all(k in ("default", "nargs", "help", "group", "metavar") for k in kwargs)
self._command_args = (args, kwargs)
def __call__(self, func):
if not hasattr(func, "_mach_command"):
func._mach_command = _MutlhCommand()
func._mach_command.arguments.insert(0, self._command_args)
return func
class CommandArgumentGroup(object):
def __init__(self, group_name):
self._group_name = group_name
def __call__(self, func):
if not hasattr(func, "_mach_command"):
func._mach_command = _MutlhCommand()
func._mach_command.argument_group_names.insert(0, self._group_name)
return func
def mach2MutlhCommand(cmd: str, new_func=None, **replacekws):
"""
Change a registered _MachCommand to a _MutlhCommand
:param str cmd: The name of the existing command
:param function new_func: New implementation function
:param dict replacekws: keyword arguments to replace
:return _MutlhCommand: replacement
"""
from mach.registrar import Registrar
def get_mach_command(cmd_name):
mach_cmd = Registrar.command_handlers.get(cmd_name)
if mach_cmd:
del Registrar.command_handlers[cmd_name]
return mach_cmd
raise Exception(f"{cmd_name} unknown!")
mach_cmd = get_mach_command(cmd)
if mach_cmd.subcommand_handlers:
raise Exception("Commands with SubCommands not implemented!")
if "parser" in replacekws:
replacekws["_parser"] = replacekws["parser"]
del replacekws["parser"]
arg_names = (
"name",
"subcommand",
"category",
"description",
"conditions",
"_parser",
"virtualenv_name",
"ok_if_tests_disabled",
"order",
"no_auto_log",
)
kwargs = dict([(k, getattr(cmd, k)) for k in arg_names])
kwargs.update(dict([(k, v) for k, v in replacekws.items() if k in arg_names]))
if "_parser" in kwargs:
kwargs["parser"] = kwargs["_parser"]
del kwargs["_parser"]
mutlh_cmd = _MutlhCommand(**kwargs)
post_args = (
"arguments",
"argument_group_names",
"metrics_path",
"subcommand_handlers",
"decl_order",
)
for arg in post_args:
value = replacekws.get(arg, getattr(mach_cmd, arg))
setattr(mutlh_cmd, arg, value)
if new_func is None:
new_func = mach_cmd.func
delattr(new_func, "_mach_command")
if not hasattr(new_func, "_mach_command"):
new_func._mach_command = _MutlhCommand()
new_func._mach_command |= mutlh_cmd
mutlh_cmd.register(new_func)
return mutlh_cmd
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