Re: [PATCH 00/15] submodule groups (once again)

> What is this series about?
> ==========================
>
> If you have lots of submodules, you probably don't need all of them at once, 
> but you have functional units. Some submodules are absolutely required, 
> some are optional and only for very specific purposes. 
>
> This patch series adds labels to submodules in the .gitmodules file. 
>
> So you could have a .gitmodules file such as: 
>
> [submodule "gcc"] 
>         path = gcc 
>         url = git://... 
>         label = default
>         label = devel 
> [submodule "linux"] 
>         path = linux 
>         url = git://... 
>         label = default 
> [submodule "nethack"] 
>         path = nethack 
>         url = git://... 
>         label = optional
>         label = games 
>
> and by this series you can work on an arbitrary group of these submodules
> composed by the labels, names or paths of the submodules.
>
>     git clone --recurse-submodules --init-submodule=label --init-submodule=label2   git://... 
>     # will clone the superproject and recursively 
>     # checkout any submodule being labeled label or label2
>     
>     git submodule add --label <name> git://... ..
>     # record a label while adding a submodule
>     
>     git config submodule.defaultGroups default
>     git config --add submodule.defaultGroups devel
>     # configure which submodules you are interested in.
>     
>     git submodule update
>     # update only the submodules in the default group if that is configured.
>     
>     git status
>     git diff
>     git submodule summary
>     # show only changes to submodules which are in the default group.