From: Finn Arne Gangstad <finnag@pvv.org>
Date: Mon, 06 Apr 2009 13:16:43 GMT
Subject: Re: Fetching SHA id's instead of named references?
Message-ID: <20090406131643.GA16229@pvv.org>
In-Reply-To: <33f4f4d70904060606h4d014fbdibe195a83233d8899@mail.gmail.com>

On Mon, Apr 06, 2009 at 03:06:46PM +0200, Klas Lindberg wrote:
> On Mon, Apr 6, 2009 at 2:54 PM, Matthieu Moy <Matthieu.Moy@imag.fr> wrote:
> 
> > What Johannes pointed out is that someone could fetch from your repo
> > _after_ you correct the mistake (if you don't control garbage
> > collection).
> 
> Aha, ok. But how then does submodule update work? Git will only see
> SHA keys for each submodule in the cotntainer tree commit, so how does
> it perform fetching of those (unnamed) references?

git submodule update just does "git fetch" and hopes that the required
commit appears. In practice this means that you (may) need to invent a
tag or a branch for all the submodules, otherwise they are not
fetchable.

This bit us pretty hard when we tried to use submodules earlier, so we
gave up. Maybe some day...

- Finn Arne