Re: [PATCH v2] checkout: implement "-" shortcut name for last branch

From: Johannes Schindelin <johannes.schindelin@gmx.de>
Date: Jan 15, 2009, 13:15 UTC
Message-ID: <alpine.DEB.1.00.0901151413250.3586@pacific.mpi-cbg.de>
In-Reply-To: <496EE559.3060901@viscovery.net>

Hi,

On Thu, 15 Jan 2009, Johannes Sixt wrote:

Show 17 quoted lines

> Thomas Rast schrieb:
> > Let git-checkout save the old branch as a symref in LAST_HEAD, and
> > make 'git checkout -' switch back to LAST_HEAD, like 'cd -' does in
> > the shell.
> 
> /me likes this feature.
> 
> git rebase (-i or not) calls checkout behind the scenes if the
> two-argument form is used:
> 
>    git rebase [-i] master topic
> 
> and 'topic' is not the current branch. You may want to add a test that
> ensures that rebase sets LAST_HEAD in this case.
> 
> You must make sure that commits referenced by LAST_HEAD are not
> garbage-collected. (I don't know if this happens anyway for symrefs in .git.)

Note: if you used reflogs for that feature, the garbage collection could 
not have killed the commit.  However, it is quite possible that the 
branch was deleted.

Ciao, Dscho