Oreon

A lightweight Version Control System (VCS) written in Python.

Oreon is a command-line version control system inspired by Git. It allows you to track changes to your project, create commits, restore previous versions, and work with multiple branches—all through a simple and intuitive CLI.

Current Version: 1.0.0

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Features

• Initialize repositories
• Track file additions, modifications, and deletions
• Create commits with custom messages
• Restore any previous commit
• View repository status
• Display commit history
• Create and switch between branches
• Prevent branch switching when uncommitted changes exist
• Repository information command
• SHA-256 based change detection
• Incremental storage for efficient versioning

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Installation

From PyPI

pip install oreon

Verify Installation

oreon --version

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Getting Started

Initialize a Repository

oreon init

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Check Repository Status

oreon status

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Create a Commit

oreon commit -m "Initial project setup"

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View Commit History

oreon show

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Restore a Previous Commit

oreon restore

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View Repository Information

oreon info

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Branching

Create a Branch

oreon createBranch feature

Switch Branches

oreon changeBranch feature

If uncommitted changes are detected, Oreon prevents switching branches to avoid accidental data loss.

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Repository Structure

project/
│
├── .oreon/
│   ├── commits/
│   ├── latest/
│   ├── hashes.json
│   └── ...
│
├── source files...

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Design

Unlike Git, Oreon uses an incremental storage approach.

The latest repository state is maintained inside .oreon/latest, while each commit stores only the changes introduced in that commit. During restoration, Oreon reconstructs the requested state by starting from the latest snapshot and reversing the required commits.

This approach keeps commits compact while allowing efficient restoration of previous versions.

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Notes

• Oreon tracks files, not empty directories.
• Empty folders are not versioned, similar to Git's behavior.
• Directories are recreated automatically whenever tracked files require them.

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Example Workflow

oreon init

oreon commit -m "Initial commit"

# edit files

oreon status

oreon commit -m "Implemented feature"

oreon show

oreon restore

oreon createBranch experimental

oreon changeBranch experimental

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Current Limitations

The following features are planned for future releases:

• File diff support
• Merge functionality
• Branch deletion
• Ignore file support (.oreonignore)
• Remote repositories
• Tags

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Why Oreon?

Oreon was built as a learning project to explore how version control systems work internally. Rather than wrapping Git, it implements its own repository format, commit storage, restoration logic, and branching mechanism from the ground up.

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Contributing

Contributions, suggestions, bug reports, and feature requests are welcome. Feel free to open an issue or submit a pull request.

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License

MIT License.

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Author

Pranay Sehgal

GitHub: https://github.com/PranaySehgal