From: Artur Skawina <art.08.09@gmail.com>
Date: Sat, 08 Aug 2009 17:33:21 GMT
Subject: Re: git failing to create new branches, depending on the name
Message-ID: <4A7DB6E1.3000302@gmail.com>
In-Reply-To: <200908081904.58186.trast@student.ethz.ch>

Thomas Rast wrote:
> Artur Skawina wrote:
>> + git checkout -f -b branch-g90bc1a6 askern/release
>> fatal: git checkout: branch branch-g90bc1a6 already exists
> 
> This bisects to
> 
> commit 352eadc40024b141e1295693654ec20cc123844f
> Author: Daniel Barkalow <barkalow@iabervon.org>
> Date:   Sun Sep 21 14:36:06 2008 -0400
> 
>     Check early that a new branch is new and valid

> Not sure this is a bug though.  If we allow branch names that are

well, it didn't say it didn't like the name, and sent me looking
for bugs in my scripts for quite a while, until i realized what's
going on...

> ambiguous to rev-parse, what do they resolve to?  E.g., in the
> presence of only 'master', 'master-g01234567' is defined to be the
> same as 01234567.  What is it if you also have a *branch* called
> 'master-g01234567'?

I'd expect the branch namespace to take precedence, unless branches
ending in -g01234567 are illegal, but that seems like an odd limitation.

Note that currently this works:

+ ( cd /tmp/build-tree/ && git checkout -f whatever/random-name-g90bc1a6 )
HEAD is now at 90bc1a6... Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

which doesn't seem right either.

artur