Git Message Generator

Generate meaningful commit messages automatically from git diffs using OpenAI's language models.

Overview

Git Message Generator is a command-line tool that analyzes your git diffs and generates descriptive commit messages using OpenAI's language models. It helps developers create more meaningful and consistent commit messages with minimal effort.

Features

• Generate commit messages automatically from git diffs
• Support for multiple OpenAI models (GPT-4, GPT-3.5, etc.)
• Easy integration with git workflow
• Command-line interface with helpful options
• List available OpenAI models

Installation

Prerequisites

• Python 3.7 or higher
• OpenAI API key

Install using pip

pip install git-message

Configuration

1. Set your OpenAI API key as an environment variable:

# Linux/macOS
export OPENAI_API_KEY='your-api-key'

# Windows (CMD)
set OPENAI_API_KEY=your-api-key

# Windows (PowerShell)
$env:OPENAI_API_KEY='your-api-key'

2. (Optional) Add it to your shell profile for persistence:

# Add to ~/.bashrc, ~/.zshrc, etc.
export OPENAI_API_KEY='your-api-key'

Usage

Basic Usage

Generate a commit message for your current changes:

git diff | git-message

Using with Staged Changes

Generate a message for staged changes:

git diff --staged | git-message

Specify a Different Model

git diff | git-message --model gpt-4
# or
git diff | git-message -m gpt-4

List Available Models

git-message --list-models
# or
git-message -l

Git Alias Setup (Optional)

Add this to your git config to create a shortcut:

git config --global alias.generate-msg '!git diff --staged | git-message'

Then use:

git generate-msg

Command-Line Options

--model, -m     Specify the OpenAI model to use (default: gpt-4o-mini)
--list-models, -l   List all available OpenAI models
--help, -h      Show help message

Examples

Example 1: Basic Commit Message Generation

$ git diff | git-message
feat: Add user authentication middleware with JWT support

Example 2: Using a Different Model

$ git diff | git-message --model gpt-4
fix: Resolve race condition in database connection pool

Example 3: Complete Git Workflow

# Stage your changes
git add .

# Generate commit message
git diff --staged | git-message > commit-msg.txt

# Review and edit if needed
vim commit-msg.txt

# Commit with the generated message
git commit -F commit-msg.txt

Contributing

Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/AmazingFeature)
3. Commit your changes (git commit -m 'Add some AmazingFeature')
4. Push to the branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

Development Setup

# Clone the repository
git clone https://github.com/yourusername/git-message.git
cd git-message

# Create and activate virtual environment
python -m venv venv
source venv/bin/activate  # On Windows: venv\Scripts\activate

# Install in editable mode
pip install -e .

License

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.

Acknowledgments

• OpenAI for providing the API
• The Python community for the excellent tools and libraries

Support

If you encounter any problems or have suggestions, please file an issue on the GitHub issue tracker.