60 lines
1.7 KiB
Python
60 lines
1.7 KiB
Python
#
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# Copyright (C) 2018 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the 'License');
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an 'AS IS' BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import argparse
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import logging
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class ConsoleArgumentError(Exception):
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"""Raised when the console fails to parse commands."""
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pass
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class ConsoleArgumentParser(argparse.ArgumentParser):
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"""The argument parser for a console command."""
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def __init__(self, command_name, description):
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"""Initializes the ArgumentParser without --help option.
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Args:
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command_name: A string, the first argument of the command.
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description: The help message about the command.
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"""
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super(ConsoleArgumentParser, self).__init__(
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prog=command_name, description=description, add_help=False)
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def ParseLine(self, line):
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"""Parses a command line.
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Args:
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line: A string, the command line.
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Returns:
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An argparse.Namespace object.
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"""
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return self.parse_args(line.split())
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# @Override
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def error(self, message):
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"""Raises an exception when failing to parse the command.
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Args:
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message: The error message.
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Raises:
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ConsoleArgumentError.
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"""
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raise ConsoleArgumentError(message) |