Re: [PATCH v5 1/4] implement submodule config API for lookup of .gitmodules values

>> How does git-submodule access this information? It looks like it just
>> hits "git config -f .gitmodules" directly. Perhaps whatever interface is
>> designed should be suitable for its use here (and if there really is no
>> more interesting interface needed, then why is "git config" not good
>> enough for other callers?).
>
> The git-submodule script doesn't need this and is fine using plain old
> "git config", as by the time it is run the .gitmodules file is already
> updated in the work tree. Heiko's series is about adding infrastructure
> to allow builtins like checkout and friends to access the configuration
> values from the .gitmodules file of the to-be-checked-out commit when
> run with "--recurse-submodules". And yes, if we want to expose this
> functionality to users or scripts some day "git config" looks like the
> best place to do that to me too.