Re: Re* [PATCH v3 19/22] resolve_ref(): emit warnings for improperly-formatted references

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Jeff King <peff@xxxxxxxx> writes:

> We also look at ref_rev_parse_rules in shorten_unambiguous_ref. So even
> with your patch, I still get the warning with:
>
>   $ git branch config
>   $ git for-each-ref --format='%(refname:short)' refs/heads/
>
> It looks like we also use it in remote.c:count_refspec_match, but I
> haven't figured out if that can trigger a warning or not.

I do not think this is "do not trigger a warning" exercise. This is "we no
longer consider names outside refs/ as potential magic refs unless they
are all uppercase".

If the updated dwim_ref() says $GIT_DIR/frotz will no longer create
ambiguity with $GIT_DIR/refs/heads/frotz, then refname_match() needs to
know about it, and cause count_refspec_match() to say that "frotz"
uniquely names "refs/heads/frotz".

The same stands for shorten_unambiguous_ref(). If $GIT_DIR/frotz no longer
is ambiguous with $GIT_DIR/refs/heads/frotz, then %(refname:shrot) for
refs/heads/frotz should yield "frotz", and we should not have to qualify
it as "heads/frotz".
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