Building a Custom Git Implementation with Node.js

You use Git every day, but do you know what actually lives inside the .git folder? The fastest way to find out is to build Git yourself. I take on the Code Crafters challenge and start implementing Git from zero in Node.js, and the internals stop being magic pretty quickly.

Watch the video if you want to see how blobs, trees, and commits really fit together.

What's inside

• Implement git init and recreate the .git directory structure
• Understand Git objects: blobs, trees, and commits
• Manipulate repository state with Node's fs and path modules
• Read failing tests as a roadmap instead of a wall
• Pick any language for the challenge (I chose JavaScript)
• Check if your company sponsors Code Crafters access

Resources

CourseGit and GitHub course

Master the Git you use daily: branching, history, and workflows that make sense once you know the internals.