From: Jakub Narebski <jnareb@gmail.com>
Date: Thu, 11 Mar 2010 23:20:40 GMT
Subject: Re: re-running merge on a single file
Message-ID: <m3hbomla3u.fsf@localhost.localdomain>
In-Reply-To: <a038bef51003111408g38698837ldcf1d0f5995f4f30@mail.gmail.com>

Chris Packham <judge.packham@gmail.com> writes:

> Hmm, having trouble with cat-file syntax
> 
> On Thu, Mar 11, 2010 at 12:29 PM, Markus Heidelberg
> <markus.heidelberg@web.de> wrote:
> > Not mergetool, but checkout:
> > git checkout --merge -- file
> 
> Ok.
> $ git checkout --merge -- cpu/mpc83xx/start.S
> 
> > git cat-file blob :1:file > file.base
> >
> 
> $ git cat-file blob :1:cpu/mpc83xx/start.S > cpu/mpc83xx/start.S.base
> fatal: Not a valid object name :1:cpu/mpc83xx/start.S
> 
> So I think I have figured out that I'm trying to get at stage 1, 2 and
> 3 of the file that git checkout --merge has just setup but I'm
> tripping over the syntax.

First, instead of 'git cat-file blob <blob-id>' you can simply use 
'git show <blob-id>'.

Second, while in

  $ git checkout --merge -- cpu/mpc83xx/start.S

the path cpu/mpc83xx/start.S is relative to your current directory,
in

  $ git show :1:cpu/mpc83xx/start.S > start.S.base

the path has to be "absolute path in repository", i.e. path relative
to top directory of the repository.

Try

  $ git show :1:$(git rev-parse --show-prefix)cpu/mpc83xx/start.S \
    > cpu/mpc83xx/start.S.base

HTH
-- 
Jakub Narebski
Poland
ShadeHawk on #git