Re: [PATCH v6 3/3] diff: add SUBMODULE_DIFF format to display submodule diff

Jacob Keller [off-list ref] writes:

Thoughts on that? Or should we just limit ourselves to only some
options get propagated to the submodule?

I think you have to be selective either way.  You do not want
pathspecs used to limit the top-level paths propagated down when you
run a diff or a log in the submodule, for example, and that does not
change even if you start using the code in diff-lib.c (after adding
the submodule odb as an alternate).