Re: [RFC/PATCH] Disallow commands from within unpopulated submodules.

> > One alternative would be to make the check cheaper. Could we reliably
> > tell from the submodule.foo.* block in the config that path "foo" is a
> > submodule? I think that would work after "submodule init" but not right
> > after "git clone". So the index really is the source of truth there.
> 
> Well we can check if there is a .gitmodules file that has a
> submodule.*.path equal to the last part of $CWD, no need to look
> at the git config.
> 
> And that would also work right after git clone (in an
> unpopulated/uninitialized submodule as I call it).
> 
> And in my current understanding of submodules the check in
> .gitmodules ought to be enough, too.