Re: [PATCH v4 4/4] notes: teach git-notes about notes.<ref>.merge option

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On Wed, Aug 12, 2015 at 2:46 PM, Johan Herland <johan@xxxxxxxxxxx> wrote:
> If we don't already refuse to merge into a ref outside refs/notes, then
> I would consider that a bug to be fixed, and not some corner use case that
> we must preserve for all future.
>
> After all, we do already have a test in t3308 named 'fail to merge into
> various non-notes refs', where one of the non-notes ref being tested are:
>
>   test_must_fail git -c "core.notesRef=refs/heads/master" notes merge x
>

This test is checking if the ref pointed at by refs/heads/master *is*
a note. But you could create a ref outside of refs/notes which is a
note but which isn't inside refs/notes

I did just find that we expand remote-ref using expand_notes_ref, and
it does *not* currently let us reference refs outside of refs/notes..
so we can merge IN to a ref not inside refs/notes (using the
environment variable) but we can't merge FROM
refs/tracking/origin/notes/y for example, which means currently all
notes we merge from have to be located into refs/notes/*

There are some weird issues here.

Regards,
Jake
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