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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
"""Everything related to the 'pylint-config -h' command and subcommands."""
from __future__ import annotations
import argparse
from typing import TYPE_CHECKING
if TYPE_CHECKING:
from pylint.lint.pylinter import PyLinter
def get_subparser_help(linter: PyLinter, command: str) -> str:
"""Get the help message for one of the subcommands."""
# Make sure subparsers are initialized properly
assert linter._arg_parser._subparsers
subparser_action = linter._arg_parser._subparsers._group_actions[0]
assert isinstance(subparser_action, argparse._SubParsersAction)
for name, subparser in subparser_action.choices.items():
assert isinstance(subparser, argparse.ArgumentParser)
if name == command:
# Remove last character which is an extra new line
return subparser.format_help()[:-1]
return "" # pragma: no cover
def get_help(parser: argparse.ArgumentParser) -> str:
"""Get the help message for the main 'pylint-config' command.
Taken from argparse.ArgumentParser.format_help.
"""
formatter = parser._get_formatter()
# usage
formatter.add_usage(
parser.usage, parser._actions, parser._mutually_exclusive_groups
)
# description
formatter.add_text(parser.description)
# positionals, optionals and user-defined groups
for action_group in parser._action_groups:
if action_group.title == "Subcommands":
formatter.start_section(action_group.title)
formatter.add_text(action_group.description)
formatter.add_arguments(action_group._group_actions)
formatter.end_section()
# epilog
formatter.add_text(parser.epilog)
# determine help from format above
return formatter.format_help()