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From: Patrick Steinhardt <ps@pks•im>
To: Junio C Hamano <gitster@pobox•com>
Cc: Phillip Wood via GitGitGadget <gitgitgadget@gmail•com>,
	git@vger•kernel.org, Han Jiang <jhcarl0814@gmail•com>,
	Phillip Wood <phillip.wood@dunelm•org.uk>
Subject: Re: [PATCH 4/4] remote: check branch names
Date: Thu, 12 Sep 2024 12:05:05 +0200	[thread overview]
Message-ID: <ZuK80YvPSo8WUpp2@pks.im> (raw)
In-Reply-To: <xmqqfrq686n5.fsf@gitster.g>

On Wed, Sep 11, 2024 at 10:03:26AM -0700, Junio C Hamano wrote:
> "Phillip Wood via GitGitGadget" <gitgitgadget@gmail•com> writes:
> 
> > +static int check_branch_names(const char **branches)
> > +{
> > +	int ret = 0;
> > +
> > +	for (const char **b = branches; *b; b++) {
> > +		if (check_refname_format(*b, REFNAME_ALLOW_ONELEVEL |
> > +						REFNAME_REFSPEC_PATTERN))
> > +			ret = error(_("invalid branch name '%s'"), *b);
> > +	}
> > +
> > +	return ret;
> > +}
> 
> This implementation is inconsistent with what "git branch new HEAD"
> uses to check the validity of "new", which is in this call chain:
> 
>     builtin/branch.c:cmd_branch()
>     -> branch.c:create_branch()
>        -> branch.c:validate_new_branchname()
>           -> branch.c:validate_branchname()
>              -> object-name.c:strbuf_check_branch_ref()
> 
> At least, we should prepend "refs/heads/" to *b, so that we can
> reject "refs/heads/HEAD".  The authoritative logic in the above
> however may further evolve, and we need to make sure that these two
> checks from drifting away from each other over time.  We probably
> should refactor the leaf function in the above call chain so that
> both places can use it (the main difference is that you allow '*' in
> yours when calling check_refname_format()).
> 
>     Side note: we *should* lose "strbuf_" from its name, as it is
>                not about string manipulation but the "strbuf'-ness
>                of the function is merely that as the side effect of
>                checking it computes a full refname and it happens to
>                use strbuf as a mechanism to return it.
> 
> Something like the patch attached at the end.

Agreed. It's also kind of curious that the function lives in
"object-name.c" and not in "refs.c".

Patrick

  reply	other threads:[~2024-09-12 10:05 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-11 15:18 [PATCH 0/4] remote: branch setting fixes Phillip Wood via GitGitGadget
2024-09-11 15:18 ` [PATCH 1/4] remote: fix set-branches when no branches are set Phillip Wood via GitGitGadget
2024-09-11 20:45   ` Junio C Hamano
2024-09-12 10:04   ` Patrick Steinhardt
2024-09-11 15:18 ` [PATCH 2/4] remote: print an error if refspec cannot be removed Phillip Wood via GitGitGadget
2024-09-11 20:52   ` Junio C Hamano
2024-09-12 10:04     ` Patrick Steinhardt
2024-09-12 16:22       ` Junio C Hamano
2024-09-13  3:08         ` Patrick Steinhardt
2024-09-13 15:11     ` phillip.wood123
2024-09-13 17:38       ` Junio C Hamano
2024-09-11 15:18 ` [PATCH 3/4] remote add: use strvec to store tracking branches Phillip Wood via GitGitGadget
2024-09-11 17:05   ` Junio C Hamano
2024-09-12 10:05   ` Patrick Steinhardt
2024-09-11 15:18 ` [PATCH 4/4] remote: check branch names Phillip Wood via GitGitGadget
2024-09-11 17:03   ` Junio C Hamano
2024-09-12 10:05     ` Patrick Steinhardt [this message]
2024-09-12 16:32       ` Junio C Hamano
2024-09-13 15:09     ` phillip.wood123
2024-09-13 17:49       ` Junio C Hamano
2024-09-18 13:18         ` phillip.wood123
2024-09-18 20:24           ` Junio C Hamano

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