Version Control Core – Mini Git Simulation (C & Data Structures)

A lightweight version control system inspired by Git, implemented entirely in C.
This project demonstrates how commits, branches, and merges can be simulated using graph and linked list data structures — helping students understand the internal logic behind real version control systems.

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Features

• Initialize Repository – Creates a repository with a root commit and master branch.
• Create Commits – Adds new commit nodes with unique IDs, timestamps, and messages.
• Branch Management – Create, switch, and list branches dynamically.
• Merge Branches – Simulates merging of two branches (creates DAG structure).
• View Commit History – Displays linear history for current branch.
• Visualize Commit Graph (DAG) – Prints parent-child relationships of commits.
• Modular MVC Architecture – Clean separation of logic into multiple .c and .h files.

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Project Structure

VersionControlCore/
│
├── include/ # Header files (declarations)
│ ├── commit.h
│ ├── repo.h
│ ├── branch.h
│ ├── merge.h
│ ├── graph.h
│ ├── utils.h
│
├── src/ # Source files (implementations)
│ ├── commit.c
│ ├── repo.c
│ ├── branch.c
│ ├── merge.c
│ ├── graph.c
│ ├── utils.c
│
├── main.c # Console-based interface (Controller + View)
├── Makefile # Build automation
└── README.md # Documentation

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How to Build and Run

1. Build the Project

   make

2. Run the Simulation

   make run

3. Clean the Build

   make clean

Menu Options

Option	Description
1	Create Commit
2	View Commit History
3	Create Branch
4	Switch Branch
5	List Branches
6	Merge Branches
7	Visualize Commit Graph
8	Exit

Data Structures Used

Data Structure	Purpose
Graph (DAG)	Models commit relationships (edges = parent links).
Linked List	Maintains sequential commit history per branch.
Structs	Defines commits, branches, and repository state.
Hash Table (optional)	For quick lookup by commit ID.

Author

• Project Title: Version Control Core – A Mini Git Simulation
• Developer: Adharsh and Koushik
• Course: B.E. II Year – Data Structures (Course-Based Project)
• Institution: Vasavi College of Engineering