From mboxrd@z Thu Jan  1 00:00:00 1970
From: Johannes Sixt <j.sixt@viscovery.net>
Subject: Re: [PATCH v2] checkout: implement "-" shortcut name for last branch
Date: Thu, 15 Jan 2009 08:27:21 +0100
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References: <1231977976-8739-1-git-send-email-trast@student.ethz.ch> <1231978322-21228-1-git-send-email-trast@student.ethz.ch>
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Cc: git@vger.kernel.org, Junio C Hamano <junio@pobox.com>
To: Thomas Rast <trast@student.ethz.ch>
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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.)

-- Hannes