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80 lines
2.1 KiB
Python
80 lines
2.1 KiB
Python
"""Module for command helpers and classes.
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This module contains extended classes and functions which are intended to
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replace those from the `discord.ext.commands` module.
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"""
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import inspect
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from discord.ext import commands
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__all__ = ["Command", "Group", "command", "group"]
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class Command(commands.Command):
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"""Command class for Red.
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This should not be created directly, and instead via the decorator.
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This class inherits from `discord.ext.commands.Command`.
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"""
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def __init__(self, *args, **kwargs):
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self._help_override = kwargs.pop("help_override", None)
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super().__init__(*args, **kwargs)
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self.translator = kwargs.pop("i18n", None)
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@property
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def help(self):
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"""Help string for this command.
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If the :code:`help` kwarg was passed into the decorator, it will
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default to that. If not, it will attempt to translate the docstring
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of the command's callback function.
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"""
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if self._help_override is not None:
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return self._help_override
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if self.translator is None:
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translator = lambda s: s
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else:
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translator = self.translator
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command_doc = self.callback.__doc__
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if command_doc is None:
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return ""
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return inspect.cleandoc(translator(command_doc))
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@help.setter
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def help(self, value):
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# We don't want our help property to be overwritten, namely by super()
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pass
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class Group(Command, commands.Group):
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"""Group command class for Red.
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This class inherits from `discord.ext.commands.Group`, with `Command` mixed
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in.
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"""
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pass
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# decorators
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def command(name=None, cls=Command, **attrs):
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"""A decorator which transforms an async function into a `Command`.
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Same interface as `discord.ext.commands.command`.
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"""
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attrs["help_override"] = attrs.pop("help", None)
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return commands.command(name, cls, **attrs)
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def group(name=None, **attrs):
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"""A decorator which transforms an async function into a `Group`.
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Same interface as `discord.ext.commands.group`.
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"""
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return command(name, cls=Group, **attrs)
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