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From: Petr Baudis <pasky@ucw.cz>
To: Mike Hommey <mh@glandium.org>
Cc: git@vger.kernel.org
Subject: Re: [ANNOUNCE] TopGit v0.3
Date: Fri, 12 Sep 2008 12:58:39 +0200	[thread overview]
Message-ID: <20080912105839.GV10360@machine.or.cz> (raw)
In-Reply-To: <20080911054030.GA6602@glandium.org>

  Hi,

On Thu, Sep 11, 2008 at 07:40:30AM +0200, Mike Hommey wrote:
> I just saw Martin Krafft's talk at debconf 8, showing TopGit, and I
> wonder why TopGit needs to keep top-bases/* references ? Isn't
> git merge-base enough for this ?

  the top-bases/ references are to determine what to base the patch
against. Consider patch structure like:

	         .---- A ----.
	vanilla <             > C
	         `---- B ----'

  Then, top-bases/C will consist of branches A and B, merging updates in
these branches over time, and you can get the current image of C's patch
by diffing top-bases/C and heads/C. There is no way how to get this by
using git merge-base, since that gives you only kind of "multi-way
diff" - I'm not even sure what would you call merge-base on in this
example.

-- 
				Petr "Pasky" Baudis
The next generation of interesting software will be done
on the Macintosh, not the IBM PC.  -- Bill Gates

  parent reply	other threads:[~2008-09-12 10:59 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-09 23:10 [ANNOUNCE] TopGit v0.3 Petr Baudis
2008-09-10  8:18 ` Bert Wesarg
2008-09-12 11:01   ` Petr Baudis
2008-09-11  8:03 ` Jan Nieuwenhuizen
2008-09-12 11:00   ` Petr Baudis
2008-09-12 12:27     ` Jan Nieuwenhuizen
2008-09-12 13:15       ` Petr Baudis
2008-09-12 18:14         ` martin f krafft
2008-09-17 10:48           ` Jan Nieuwenhuizen
2008-09-21 14:24             ` Petr Baudis
2008-09-22  9:13               ` Jan Nieuwenhuizen
2008-09-22 15:27                 ` Petr Baudis
2008-09-23 13:13                   ` Jan Nieuwenhuizen
2008-09-23 13:27                     ` Petr Baudis
2008-09-29 10:53                       ` Jan Nieuwenhuizen
2008-10-03 10:00                       ` Jan Holesovsky
     [not found] ` <20080911054030.GA6602@glandium.org>
2008-09-12 10:58   ` Petr Baudis [this message]
2008-09-15  8:01 ` Michael Radziej
2008-09-17 10:11   ` Petr Baudis
2008-09-17 11:17     ` Michael Radziej

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