From: Frans Pop <elendil@planet.nl>
Date: Wed, 27 Jan 2010 15:39:43 GMT
Subject: Re: Testing if a certain commit is in the current branch
Message-ID: <201001271639.44167.elendil@planet.nl>
In-Reply-To: <E1Na9ca-0004x2-Gf@xyzzy.farnsworth.org>

On Wednesday 27 January 2010, Dale Farnsworth wrote:
> I've been using the following.  It produces output only if the commit
> is NOT in HEAD.
>
> git rev-list -1 ^HEAD commitID

Nice. That does work.

Returns 0 in both cases and you'd need to allow for nonexisting commit IDs, 
so you'd get:
   test -z "$(git rev-list -1 ^HEAD <commit id> 2>/dev/null)"

Time needed looks to be slightly faster than Junio's test.

Thanks,
FJP