Generate Before/After Diff for Staged Files to Assist with Commit Messages

[jonabergamo]

Hello Repomix team! 👋

I have an idea for a new feature that could make Repomix even more powerful. It would be great if Repomix could generate a file comparing the before and after states of files currently staged for commit.

How It Would Work:

The feature would generate a file containing:

1. Previous state of the modified files (before staging).
2. Current state after the staged changes.

Use Case:

This file could be used with AI tools (like ChatGPT, Claude, or Gemini) to:

• Generate a perfect commit message, including both the title and body.
• Provide better context for what has changed in the codebase.
• Encourage better commit practices, like following conventional commit standards.

Example Workflow:

repomix --staged

Generates a file named repomix-staged-diff.txt with the diff of staged files, ready to be fed into an AI assistant for generating a commit message suggestion.

Would love to hear your thoughts on this! Let me know if this could be useful or if you'd like me to elaborate further on the idea. 🚀

Thanks for the awesome tool!