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# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
# For details: https://github.com/PyCQA/pylint/blob/main/LICENSE
# Copyright (c) https://github.com/PyCQA/pylint/blob/main/CONTRIBUTORS.txt
from __future__ import annotations
import argparse
from pylint.config.callback_actions import _CallbackAction
from pylint.constants import DEFAULT_PYLINT_HOME, OLD_DEFAULT_PYLINT_HOME
class _HelpFormatter(argparse.RawDescriptionHelpFormatter):
"""Formatter for the help message emitted by argparse."""
def _get_help_string(self, action: argparse.Action) -> str | None:
"""Copied from argparse.ArgumentDefaultsHelpFormatter."""
assert action.help
help_string = action.help
# CallbackActions don't have a default
if isinstance(action, _CallbackAction):
return help_string
if "%(default)" not in help_string:
if action.default is not argparse.SUPPRESS:
defaulting_nargs = [argparse.OPTIONAL, argparse.ZERO_OR_MORE]
if action.option_strings or action.nargs in defaulting_nargs:
help_string += " (default: %(default)s)"
return help_string
@staticmethod
def get_long_description() -> str:
return f"""
Environment variables:
The following environment variables are used:
* PYLINTHOME Path to the directory where persistent data for the run will
be stored. If not found, it defaults to '{DEFAULT_PYLINT_HOME}'
or '{OLD_DEFAULT_PYLINT_HOME}' (in the current working directory).
* PYLINTRC Path to the configuration file. See the documentation for the method used
to search for configuration file.
Output:
Using the default text output, the message format is :
MESSAGE_TYPE: LINE_NUM:[OBJECT:] MESSAGE
There are 5 kind of message types :
* (I) info, for informational messages
* (C) convention, for programming standard violation
* (R) refactor, for bad code smell
* (W) warning, for python specific problems
* (E) error, for probable bugs in the code
* (F) fatal, if an error occurred which prevented pylint from doing further processing.
Output status code:
Pylint should leave with following bitwise status codes:
* 0 if everything went fine
* 1 if a fatal message was issued
* 2 if an error message was issued
* 4 if a warning message was issued
* 8 if a refactor message was issued
* 16 if a convention message was issued
* 32 on usage error
"""