Re: [PATCH 07/16] git-read-tree: take --submodules option

> How about doing something like this, instead?
> 
>  (1) superproject .gitmodules (in-tree) and .git/config (local
>      repository) use the three-level naming in $gmane/47567.
>      Namely, (1a) .gitmodules says which subdirectory has a
>      checkout of what project, and names the project in
>      logical/abstract terms, not with a URL (e.g. "kernel26");
>      (1b) .gitmodules also associates a set of suggested URLs
>      for each of the logical/abstract project name; (1c)
>      .git/config records which project are of interest.

>  (2) In superproject .git/, we would have a bare repository for
>      each project used by the superproject.
> 
> 	.git/subproject/kernel26/{objects,refs,...}
> 
>      This is created by making a bare clone from the upstream
>      URL, decided by the user with the help from suggested URL
>      described in the superproject .gitmodules.

>      (4b) It has the same logical/abstract project checked out;
>      the commit recorded in the superproject tree may or may not
>      be the same as what its HEAD points at.  In this case we do
>      not have to worry about swapping the git repository at
>      kernel-src/ directory, although we would need to check out
>      the correct revision, and worry about what to do with any
>      local modification (I think the usual "don't lose local
>      modification but carry them forward" rule would be Ok in
>      this case).