From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun, 09 Aug 2009 18:35:01 GMT
Subject: Re: Hash algorithm choice
Message-ID: <alpine.LFD.2.01.0908091133420.3288@localhost.localdomain>
In-Reply-To: <fabb9a1e0908091116y6012caa7j6865d5fcd5d9888c@mail.gmail.com>



On Sun, 9 Aug 2009, Sverre Rabbelier wrote:
>
> Wouldn't the transport code also have to be modified? I assume git's
> integrity checking would yell at if you gave it commits with
> non-sha1-hashes and have no way to tell it that that hash was
> calculated with a non-sha1-hash at clone time?

Well, if you start introducing new hashes, the assumption is that all 
git's that access it would have to be updated.

You certainly could never pull/push between git versions that don't know 
about each others hashes. But you _can_ autodetect the hash mechanism 
(simple: just try them all on the first object you encounter)

		Linus