From: Junio C Hamano <gitster@pobox.com>
Date: Fri, 21 Aug 2026 09:29:18 GMT
Subject: Re: [PATCH v2] t1402: test forbidden characters in refnames
Message-ID: <xmqq5x13stxt.fsf@gitster.g>
In-Reply-To: <pull.2203.v2.git.1787264417682.gitgitgadget@gmail.com>

"Nikolaus Schuetz via GitGitGadget" <gitgitgadget@gmail.com> writes:

>     This adds the remaining forbidden characters in embedded form, and
>     checks that "@" alone is rejected even with --allow-onelevel, where "@"
>     is otherwise a valid refname component (as "refs/@" confirms).

Many funny characters are not allowed between 'foo' and 'bar', but
are there characters other than dot that are not allowed at the
beginning or at the end (e.g., "refs/heads/foo." and "foo.lock")?

IOW are we testing exhaustive now?

>  invalid_ref '.refs/foo'
>  invalid_ref 'refs/heads/foo.'
> -invalid_ref 'heads/foo..bar'
> -invalid_ref 'heads/foo?bar'
> +for c in '?' '~' '^' ':' '*' '[' ' ' '\' '..'
> +do
> +	invalid_ref "heads/foo${c}bar"
> +done
>  valid_ref 'foo./bar'
>  invalid_ref 'heads/foo.lock'
>  invalid_ref 'heads///foo.lock'