From: Ed Tomlinson <tomlins@cam.org>
Date: Fri, 25 Nov 2005 02:50:59 GMT
Subject: Re: Linux 2.6.15-rc2
Message-ID: <200511242151.00162.tomlins@cam.org>
In-Reply-To: <20051124195256.GR3968@reactrix.com>

On Thursday 24 November 2005 14:52, Nick Hengeveld wrote:
> On Thu, Nov 24, 2005 at 10:37:15AM -0800, Linus Torvalds wrote:
> 
> > I just repacked and updated it now, so how http should work too, although 
> > inefficiently (because it will get a whole new pack - just one of the 
> > disadvantages of the non-native protocols).
> 
> There's room to improve on that particular inefficiency.  The http
> commit walker could use Range: headers to fetch loose objects directly
> from inside a pack if it didn't make sense to fetch the entire pack.
> For this to work, pack fetches would need to be deferred until the
> entire tree had been walked, and the commit walker could decide whether
> to fetch the pack or loose objects based on the percentage of packed
> objects it needed to fetch.  It would also need to fetch all
> tag/commit/tree objects using ranges to be able to fully walk the tree.

Alternately, when creating a new archive the client could ask the server
what protocols are active.  It could then use the best one for the clone and
update the .git/origin files with the optimal one for incremental pulls.

Thoughts?
Ed Tomlinson