From: Junio C Hamano <junkio@cox.net>
Date: Sat, 23 Sep 2006 08:04:45 GMT
Subject: Re: [PATCH] Remove branch by putting a null sha1 into the ref file.
Message-ID: <7vu02zuhya.fsf@assigned-by-dhcp.cox.net>
In-Reply-To: <200609230645.37773.chriscool@tuxfamily.org>

Christian Couder <chriscool@tuxfamily.org> writes:

> If we move ".git/refs/heads/frotz/nitfol" 
> to ".git/deleted-refs/heads/frotz/nitfol" when we remove this ref, we only 
> need to try to rmdir all subdirectories under ".git/refs/heads/frotz/" and 
> then ".git/refs/heads/frotz/" to see if we can 
> create ".git/refs/heads/frotz", and if we can, we won't 
> resurect "frotz/nitfol" because ".git/deleted-refs/heads/frotz/nitfol" 
> still exists.

I am not sure if that would be workable.  I suspect that you
would need to do quite an involved sequence in "git branch" to
make this sequence to work with .git/deleted-refs/ scheme:

	git branch frotz/nitfol
        git pack-refs --prune
        git branch -d frotz/nitfol
        git branch frotz
        git pack-refs
        git branch -d frotz

After deleting frotz/nitfol you would create frotz/nitfol in
deleted hierarchy.  Then when you delete frotz you would need to
create frotz in deleted hierarchy, but you cannot, without
losing frotz/nitfol.