🦖 Rex — A Simple Git-like Version Control System

Rex is a lightweight, Git-inspired version control system built in Python. It implements core version control concepts such as blobs, trees, commits, branching, and checkout — helping you understand how Git works internally.

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🚀 Features

• Initialize a repository (init)
• Track files and directories (add)
• Create commits with history tracking (commit)
• View commit history (log)
• Switch branches or commits (checkout)
• Branch creation support
• Object storage using SHA-1 hashing
• Compression using zlib (just like Git!)

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🧠 How It Works

Rex mimics Git’s internal architecture:

• Blob → Stores file content
• Tree → Represents directory structure
• Commit → Tracks snapshots with metadata
• Objects → Stored using SHA-1 hashes
• Index → Tracks staged files
• HEAD → Points to current branch/commit

All data is stored inside a hidden .rex/ directory.

📦 Installation

Clone the repository

git clone https://github.com/lieutenant-Rohit/rex.git

Go into project folder

cd rex

Check Python installation

python3 --version

Run the project

python3 rex.py

(Optional) Make executable

chmod +x rex.py ./rex.py

🔍 Example Usage

Initialize repository

./rex.py init

Create a file

echo "Hello Rex" > file.txt

Add file to staging

./rex.py add file.txt

Commit changes

./rex.py commit -m "First commit"

View commit history

./rex.py log

Create and switch to a new branch

./rex.py checkout feature --create

Modify file

echo "New change" >> file.txt

Add and commit again

./rex.py add file.txt ./rex.py commit -m "Updated file"

Switch back to master

./rex.py checkout master