Re: [RFH] revision limiting sometimes ignored

From: Junio C Hamano <gitster@pobox.com>
Date: Feb 6, 2008, 05:30 UTC
Message-ID: <7vwspi4poh.fsf@gitster.siamese.dyndns.org>
In-Reply-To: <alpine.LFD.1.00.0802051648410.2967@woody.linux-foundation.org>

Linus Torvalds <torvalds@linux-foundation.org> writes:

Show 7 quoted lines

> But the revision.c change might be worth it, if only as a slight band-aid 
> for the current issue. It won't fix the original problem, though (because 
> that broken repo had a five *year* clock skew, not an hour :)
>
> I'll continue to think about whether I can come up with some sane 
> heuristic that allows non-broken cases to not go all the way up to the 
> root.

I really wish this was still May 2005. Then I (actually, you) could just decree:

	Sorry guys, but you all need to run convert-objects to
	update your repo.  What it does is to add a "generation"
	header to each and every commit object.  Then upgrade
	your git to this version, that maintains the
	"generation" number, defined as:

        (1) parentless commit gets generation #0;

        (2) otherwise the generation number of a commit is
	    max(its parents' generation number)+1.