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# Copyright 2024 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import argparse
class _StoreAction(argparse.Action):
"""
Custom action that allows for `-` or `_` to be passed in for an argument.
"""
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
new_option_strings = []
for option_string in self.option_strings:
new_option_strings.append(option_string)
if "_" in option_string[2:]:
# Add `-` version to the option string
new_option_strings.append(option_string.replace("_", "-"))
self.option_strings = new_option_strings
def __call__(self, parser, namespace, values, option_string=None):
setattr(namespace, self.dest, values)
class _StoreConstAction(_StoreAction):
"""
Same as `argparse._StoreConstAction` but uses the custom `_StoreAction`.
"""
def __init__(self, option_strings, dest, const, default=None, required=False, help=None):
super().__init__(
option_strings=option_strings,
dest=dest,
nargs=0,
const=const,
default=default,
required=required,
help=help,
)
def __call__(self, parser, namespace, values, option_string=None):
setattr(namespace, self.dest, self.const)
class _StoreTrueAction(_StoreConstAction):
"""
Same as `argparse._StoreTrueAction` but uses the custom `_StoreConstAction`.
"""
def __init__(
self,
option_strings,
dest,
default=None,
required=False,
help=None,
):
super().__init__(
option_strings=option_strings, dest=dest, const=True, default=default, required=required, help=help
)
class CustomArgumentGroup(argparse._ArgumentGroup):
"""
Custom argument group that allows for the use of `-` or `_` in arguments passed and overrides the help for each
when applicable.
"""
def _add_action(self, action):
args = vars(action)
if isinstance(action, argparse._StoreTrueAction):
action = _StoreTrueAction(
args["option_strings"], args["dest"], args["default"], args["required"], args["help"]
)
elif isinstance(action, argparse._StoreConstAction):
action = _StoreConstAction(
args["option_strings"],
args["dest"],
args["const"],
args["default"],
args["required"],
args["help"],
)
elif isinstance(action, argparse._StoreAction):
action = _StoreAction(**args)
action = super()._add_action(action)
return action
class CustomArgumentParser(argparse.ArgumentParser):
"""
Custom argument parser that allows for the use of `-` or `_` in arguments passed and overrides the help for each
when applicable.
"""
def add_argument(self, *args, **kwargs):
if "action" in kwargs:
# Translate action -> class
if kwargs["action"] == "store_true":
kwargs["action"] = _StoreTrueAction
else:
kwargs["action"] = _StoreAction
super().add_argument(*args, **kwargs)
def add_argument_group(self, *args, **kwargs):
group = CustomArgumentGroup(self, *args, **kwargs)
self._action_groups.append(group)
return group
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