Quick Start to Git Submodule

The Problem

As a developer, having loads of reusable code makes work much easier and enjoyable. I’ve got into the habit of breaking the applications I develop in CakePHP into plugins so I can reuse the plugins in other projects. It wasn’t long before I hit some issues. For example, I used plugin X in project A. Then copied plugin X to project B and added new functionality. Not so long after that I extended plugin X in project A. So now I have two “branches” of plugin X and merging them is another task altogether. That project A and project B are git repos doesn’t help either since I don’t want to merge project A and project B.