From: Junio C Hamano <gitster@pobox.com>
Date: Sun, 22 Sep 2024 16:55:40 GMT
Subject: Re: [PATCH v4 4/5] ref: add symref content check for files backend
Message-ID: <xmqq5xqn8w6r.fsf@gitster.g>
In-Reply-To: <ZvA9agbGaGnF6nxW@ArchLinux>

shejialuo <shejialuo@gmail.com> writes:

>> > +`escapeReferent`::
>> > +	(ERROR) The referent of a symref is outside the "ref" directory.
>> 
>> I am not sure starting this as ERROR is wise.  Users and third-party
>> tools make creative uses of the system and I cannot offhand think of
>> an argument why it should be forbidden to create a symbolic link to
>> our own HEAD or to some worktree-specific ref in another worktree.
>> 
> Do we allow this cross-access (hack)? It might cause some trouble from
> my perspective.

If the current implementation allows users to set up and take
advantage of, then it is not a hack.  It would cause breakage
if we make it an error.  Does such a symref successfully refer
to the referent right now?  I think it does.

Thanks.