Introduction to Git Subtree

Welcome! In this lesson, we'll explore Git Subtree. It's a way to embed another Git repository inside your own, essentially merging its history and files into a subdirectory.

Think of it as an alternative to Git Submodules for managing external dependencies or shared code within a single project.

The core difference between Subtree and Submodule lies in how they integrate external code:

• Submodules: Store a reference (a specific commit hash) to an external repository. The external code lives separately, managed as a distinct repository.
• Subtree: Integrates the external repository's code and its history directly into your main repository. It's like a deep copy with the ability to link back to the original.