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From: Mike Hommey <mh@glandium.org>
To: Andreas Ericsson <ae@op5.se>
Cc: Git Mailing List <git@vger.kernel.org>
Subject: Re: Git's database structure
Date: Tue, 4 Sep 2007 18:07:26 +0200	[thread overview]
Message-ID: <20070904160726.GA17509@glandium.org> (raw)
In-Reply-To: <46DD7FE4.1060908@op5.se>

On Tue, Sep 04, 2007 at 05:55:16PM +0200, Andreas Ericsson <ae@op5.se> wrote:
> Each root tree can only ever belong to a single commit, unless you
> intentionally force git to make completely empty commits. git
> won't complain about this, so long as you don't make two in the
> same second, because it relies more heavily on the DAG than on
> developer sanity.

Actually, you don't need to be insane to have multiple commits pointing
at the same root tree. It is actually very easy:
- git clone
- do some stuff on your master branch and commit
- send your changes upstream
- upstream applies as is
- git pull

You now have everything merged, and the last commit on your master branch,
while being a different commit object due to its parenting, has the same
root tree as the tip of the remote branch.

Mike

  reply	other threads:[~2007-09-04 16:08 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-04 15:23 Git's database structure Jon Smirl
2007-09-04 15:55 ` Andreas Ericsson
2007-09-04 16:07   ` Mike Hommey [this message]
2007-09-04 16:10     ` Andreas Ericsson
2007-09-04 16:19   ` Jon Smirl
2007-09-04 16:29     ` Andreas Ericsson
2007-09-04 17:09     ` Jeff King
2007-09-04 20:17     ` David Tweed
2007-09-04 17:21   ` Junio C Hamano
2007-09-04 16:28 ` Jon Smirl
2007-09-04 16:31   ` Andreas Ericsson
2007-09-04 16:47     ` Jon Smirl
2007-09-04 16:51       ` Andreas Ericsson
2007-09-04 17:25   ` Junio C Hamano
2007-09-04 17:44     ` Jon Smirl
2007-09-04 18:04       ` Mike Hommey
2007-09-04 19:44         ` Reece Dunn
2007-09-04 18:06       ` Junio C Hamano
2007-09-04 21:25       ` Theodore Tso
2007-09-04 21:54         ` Jon Smirl
2007-09-05  7:18           ` Andreas Ericsson
2007-09-05 13:41             ` Jon Smirl
2007-09-05 14:51               ` Andreas Ericsson
2007-09-05 15:37                 ` Jon Smirl
2007-09-05 15:54                   ` Julian Phillips
2007-09-05 16:12                     ` Jon Smirl
2007-09-05 17:31                       ` Julian Phillips
2007-09-06  1:27                         ` Kyle Moffett
2007-09-05 17:39                       ` Mike Hommey
2007-09-06  8:49                       ` Andreas Ericsson
2007-09-06  9:09                         ` Junio C Hamano
2007-09-06 11:03                           ` Wincent Colaiuta
2007-09-06 12:56                       ` Johannes Schindelin
2007-09-06 18:14                         ` Steven Grimm
2007-09-07  0:33                       ` Martin Langhoff
2007-09-05 19:52               ` Andy Parkins
2007-09-04 17:19 ` Julian Phillips
2007-09-04 17:30   ` Jon Smirl
2007-09-04 18:51     ` Andreas Ericsson

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