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From: Jeff King <peff@peff.net>
To: Ram Rachum <ram@rachum.com>
Cc: git@vger.kernel.org
Subject: Re: Using alternate working directory
Date: Tue, 24 Sep 2013 01:00:11 -0400	[thread overview]
Message-ID: <20130924050011.GE2766@sigill.intra.peff.net> (raw)
In-Reply-To: <523E09D8.8090808@rachum.com>

On Sun, Sep 22, 2013 at 12:04:24AM +0300, Ram Rachum wrote:

> I'm making a script `gm` which lets me merge one branch into another
> without having either checked out. It works for some cases but not
> all. I'm trying to make it work for more cases.
> 
> I concluded that the best way to do it would be by using an
> alternate, temporary working directory instead of the repo itself.

Yes, otherwise you will be stomping all over the working tree of
whatever branch _is_ checked out.

> This is my script:
> 
>     https://gist.github.com/cool-RR/6575042
> 
> Now, the problem is that when I try it, it gives these errors:
> 
>     git checkout-index: my_file is not in the cache and then error:
>     my_file: cannot add to the index - missing --add option?
> 
> Anyone has any idea what to do?

Your script is quite similar to the one that is used server-side at
GitHub to generate the "this can be merged" button for each pull
request. So it should work in principle.

Just a guess, but using a relative path for the temporary index file
might be a problem. read-tree will operate from $GIT_DIR as its working
directory, for example, but I think the git-merge-one-file script will
be at the top-level of $GIT_WORK_TREE. Meaning that all of the
sub-commands it runs will see an empty index.

-Peff

      parent reply	other threads:[~2013-09-24  5:00 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-21 21:04 Using alternate working directory Ram Rachum
2013-09-24  4:27 ` Ram Rachum
2013-09-24  5:00 ` Jeff King [this message]

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