Ge-Git – Build Your Own Git in C

Ge-Git is a lightweight Git implementation in C that mimics Git's internal object storage system, including support for blob, tree, and commit objects.

---

🚀 Features

• ✅ init – Initialize a .gegit directory
• ✅ hash-object – Create blob objects from file content
• ✅ write-tree – Generate tree objects from directory structure
• ✅ commit – Create commit objects referencing tree objects
• ✅ Stores all Git-like objects in .gegit/objects/<sha1>

---

🧠 Internals

This project closely follows how Git internally handles content:

Object Type	Format	Stored In
Blob	blob <size>\0<content>	.gegit/objects/<first2>/<rest38>
Tree	tree <size>\0<entries> per file	.gegit/objects/<sha1>
Commit	commit <size>\0tree <sha>\nauthor...\n<message>	.gegit/objects/<sha1>

---

📦 File Structure

Ge-Git/
├── .gegit/                  # Custom .git-like directory for storing objects
│   └── objects/             # Contains all git objects (blobs, trees, commits)
│       └── <hash-prefix>/
│           └── <object-file>
├── .vscode/                 # VS Code settings (optional)
├── include/                # Header files
│   ├── commit.h
│   ├── hash_object.h
│   ├── init.h
│   ├── tree.h
│   └── utils.h
├── src/                    # Source files
│   ├── commit.c
│   ├── hash_object.c
│   ├── init.c
│   ├── tree.c
│   └── utils.c
├── hello.txt               # Sample file to hash
├── main.c                  # CLI entry point
├── gegit                   # Compiled binary
└── Makefile                # Build script

🧪 Example Usage

🟢 Initialize repository

make

./gegit init

📦 Hash a file as a blob

./gegit hash-object hello.txt

🌲 Write tree from current directory

./gegit write-tree

📝 Commit the tree

./gegit commit "initial commit"

🪪 License

MIT License © Meerthika