From: Jeff King <peff@peff.net>
Date: Wed, 27 Aug 2008 17:18:46 GMT
Subject: Re: [PATCH v2] allow user aliases for the --author parameter
Message-ID: <20080827171846.GA14300@coredump.intra.peff.net>
In-Reply-To: <7vmyiyqt08.fsf@gitster.siamese.dyndns.org>

On Wed, Aug 27, 2008 at 10:15:19AM -0700, Junio C Hamano wrote:

> > I wonder if there is a good way to warn that we have multiple matches.
> > Of course we expect many _exact_ matches if the author has multiple
> > commits, but we could look for distinct matches. However, even that will
> > turn up false positives, since some authors have multiple email
> > addresses.
> 
> In order to prove unique match you would need an exhaustive check, don't
> you?

Yes, though you also do exhaustive check in the worst case already (when
the name doesn't match anything). It takes about .7s on a warm cache on
my git.git.

Anyway, I think it is already not a good idea because of the semantics,
let alone the performance.

-Peff

PS Your message also didn't go to git@vger, so I think you are having
the same problem with Michael's message that I am.