Cleanup specific number of messages

[kangalio]

It would be useful to specify a number in the ?cleanup, so that Ferris deletes at most that specific number of its messages.

For example, in this Discord discussion, I presented two snippets of code that produces quite verbose compiler output. I wanted to remove just those two long compiler outputs, but preferably not the experiments done above with Ferris. However, the ?cleanup commands wiped all the invocations, even the compact ones above.

[kangalio]

I see this has actually supposedly been implemented the entire time. It didn't seem to work though in the linked Discord messages.

Also, do I understand this code correctly:

RustbotPython/bot/cogs/commands.py

Lines 64 to 69 in 30d8d81

	limit = limit or 100
	def is_me(m):
	return m.author.id == self.bot.user.id
	deleted = await ctx.channel.purge(limit=limit, check=is_me)

This lets anyone delete up to 100 Rust bot messages at once? Without any restrictions? You could theoretically wipe out all of the bot's messages in a channel with this. Is my understanding correct and if yes, is this intended?

[kangalio]

About ?cleanup in general: as far as I can tell, there is no restrictions on who can use this command, in which channel, to which extent. Any server member could theoretically spam ?cleanup in any channel and eradicate the entire history of Ferris in that channel, if they go long enough. Is that intended behavior?

• should messages beyond a certain age be exempt from deletion?
• should users only be able to cleanup Ferris messages triggered by themselves? (except mods)