How can I add a specific folder from a git repo as a git submodule?

Question

I have a git repo and I want to add a submodule to it. Problem is, the submodule exists as a folder inside another repo. Can I add only that folder as a submodule?

Answer 1

I ended up doing this:

1. Create a submodules directory.
2. Add the submodule in this directory.
3. Create a symlink to the specific directory inside the submodule.

This way you have default Git submodule behaviour and in your project you only use a subset of the whole submodule.