Re: git clone submodules recursive and reference

From: Jens Lehmann <jens.lehmann@web.de>
Date: Apr 20, 2012, 18:59 UTC
Message-ID: <4F91B22A.9000507@web.de>
In-Reply-To: <CAFj+z055ZZc-Am+pEMgjRvHgoxKSRBjnHhABCseC45+8YswKWg@mail.gmail.com>

Am 20.04.2012 17:12, schrieb Samuel Maftoul:

Show 19 quoted lines

> Hello,
> 
> I'm using git clone --reference, it works like a charm !
> 
> Now, I have submodules, so I call git clone with both --recursive and
> --reference, works only for the repo itself, submodules are being
> cloned without the "--reference" option.
> 
> With GIT_TRACE=1 I can see this for the initial repo:
> 
> trace: built-in: git 'clone' '--recursive' '--reference' [...]
> 
> And this for the submodules:
> 
> trace: built-in: git 'clone' '-n' [...]
> 
> for every submodules.
> 
> Is this an intended behavior ?

Hmm, to me it looks like passing the --reference option to the clone run in the submodules doesn't make much sense, as that would make all submodules and the superproject use the same alternates. And as far as I know sharing objects between different repositories is not supported.

> How can I force the clones for submodules to be executed with the
> --reference option ?

You'd have to use "git clone" without the --recursive option and then do a "git submodule update --init --reference ...".