I'm thinking about using submodules in a way that they aren't really meant for but my goal is to streamline some things for the devs. I've got a project that is basically made up of only submodules - 4 of them. It is important that they are independent of one another or I would just make one big repo. From the parent repo, I can see the diff for all submodules at once by doing git diff --submodule=diff.
But what I really want is the equivalent of git difftool -d but for all submodules at once. Theoretically difftool should work with the --submodule=diff flag (since git difftool has all the same options as diff) but it doesn't. Ideas?