mirror of
https://github.com/nonebot/nonebot2.git
synced 2024-12-18 09:25:46 +08:00
42 lines
1.2 KiB
Python
42 lines
1.2 KiB
Python
from argparse import *
|
|
|
|
from .command import CommandSession
|
|
|
|
|
|
class ParserExit(RuntimeError):
|
|
def __init__(self, status=0, message=None):
|
|
self.status = status
|
|
self.message = message
|
|
|
|
|
|
class ArgumentParser(ArgumentParser):
|
|
"""
|
|
An ArgumentParser wrapper that avoid printing messages to
|
|
standard I/O.
|
|
"""
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
self.session = kwargs.pop('session', None)
|
|
super().__init__(*args, **kwargs)
|
|
|
|
def _session_finish(self, message):
|
|
if self.session and isinstance(self.session, CommandSession):
|
|
self.session.finish(message)
|
|
|
|
def _print_message(self, message, file=None):
|
|
# do nothing
|
|
pass
|
|
|
|
def exit(self, status=0, message=None):
|
|
raise ParserExit(status=status, message=message)
|
|
|
|
def parse_args(self, args=None, namespace=None):
|
|
try:
|
|
return super().parse_args(args=args, namespace=namespace)
|
|
except ParserExit as e:
|
|
if e.status == 0:
|
|
# --help
|
|
self._session_finish(self.usage or self.format_help())
|
|
else:
|
|
self._session_finish('参数不足或不正确，请使用 --help 参数查询使用帮助')
|