NoEntropy 🗂️

AI-powered file organizer that intelligently sorts your messy Downloads folder using Google Gemini API

About

NoEntropy is a smart command-line tool that organizes your cluttered Downloads folder automatically. It uses Google's Gemini AI to analyze files, understand their content, and categorize them into organized folder structures. Say goodbye to manually sorting through hundreds of downloads!

Use Cases

• 📂 Organize a messy Downloads folder
• 🤖 Auto-categorize downloaded files by type and content
• 🔍 Smart sub-folder creation based on file content
• 🚀 Batch file organization without manual effort
• 💾 Reduce clutter and improve file system organization

Features

• 🧠 AI-Powered Categorization - Uses Google Gemini API for intelligent file sorting
• 📁 Automatic Sub-Folders - Creates relevant sub-folders based on file content analysis
• 💨 Smart Caching - Minimizes API calls with metadata-based caching (7-day expiry)
• ⚡ Concurrent Processing - Parallel file inspection with configurable limits
• 👀 Dry-Run Mode - Preview changes without moving any files
• 🔄 Retry Logic - Exponential backoff for resilient API handling
• 📝 Text File Support - Inspects 30+ text formats for better categorization
• ✅ Interactive Confirmation - Review organization plan before execution
• 🎯 Configurable - Adjust concurrency limits and model settings

Prerequisites

• Rust 2024 Edition or later
• Google Gemini API Key - Get one at https://ai.google.dev/
• A folder full of unorganized files to clean up!

Installation

1. Clone repository

   git clone https://github.com/yourusername/noentropy.git
   cd noentropy
   

2. Build the application

   cargo build --release
   

3. Run the application On first run, NoEntropy will guide you through interactive setup:

   ./target/release/noentropy
   

   Or manually create config file at ~/.config/noentropy/config.toml:

   cp config.example.toml ~/.config/noentropy/config.toml
   nano ~/.config/noentropy/config.toml
   

Configuration

NoEntropy stores configuration in ~/.config/noentropy/config.toml following XDG Base Directory specifications.

Configuration File Format

api_key = "AIzaSyDTEhAq414SHY094A5oy5lxNA0vhbY1O3k"
download_folder = "/home/user/Downloads"

Setting	Description	Example
api_key	Your Google Gemini API key	AIzaSy...
download_folder	Path to folder to organize	/home/user/Downloads

Getting a Gemini API Key

1. Visit Google AI Studio
2. Sign in with your Google account
3. Create a new API key
4. Copy the key to your configuration file

Interactive Setup

NoEntropy provides an interactive setup on first run:

• Missing API key? → You'll be prompted to enter it
• Missing download folder? → You'll be prompted to specify it (with default suggestion)
• Both missing? → You'll be guided through complete setup

Configuration is automatically saved to ~/.config/noentropy/config.toml after interactive setup.

Usage

Basic Usage

Organize your Downloads folder with default settings:

cargo run --release

Dry-Run Mode

Preview what would happen without moving any files:

cargo run --release -- --dry-run

Custom Concurrency

Adjust the number of concurrent API calls (default: 5):

cargo run --release -- --max-concurrent 10

Combined Options

Use multiple options together:

cargo run --release -- --dry-run --max-concurrent 3

Command-Line Options

Option	Short	Default	Description
--dry-run	None	false	Preview changes without moving files
--max-concurrent	None	5	Maximum concurrent API requests
--help	-h	-	Show help message

How It Works

NoEntropy follows a five-step process to organize your files:

┌─────────────────┐
│  1. Scan Files  │ → Read all files in DOWNLOAD_FOLDER (and subdir if --recursive flag is used)
└────────┬────────┘
         ▼
┌─────────────────────────┐
│ 2. Initial Categorization │ → Ask Gemini to categorize by filename
└────────┬────────────────┘
         ▼
┌──────────────────────┐
│  3. Deep Inspection   │ → Read text files for sub-categories
│     (Concurrent)      │   • Reads file content
│                       │   • Asks AI for sub-folder
└────────┬──────────────┘
         ▼
┌──────────────────────┐
│  4. Preview & Confirm│ → Show organization plan
│                       │   • Ask user approval
└────────┬──────────────┘
         ▼
┌──────────────────────┐
│   5. Execute Moves    │ → Move files to organized folders
└──────────────────────┘

Example Terminal Output

$ cargo run --release

Found 47 files. Asking Gemini to organize...
Gemini Plan received! Performing deep inspection...
Reading content of report.pdf...
Reading content of config.yaml...
Reading content of script.py...
Deep inspection complete! Moving Files.....

--- EXECUTION PLAN ---
Plan: image1.png -> Images/
Plan: document.pdf -> Documents/
Plan: setup.exe -> Installers/
Plan: notes.txt -> Documents/Notes/
Plan: config.yaml -> Code/Config/
Plan: script.py -> Code/Scripts/

Do you want to apply these changes? [y/N]: y

--- MOVING FILES ---
Moved: image1.png -> Images/
Moved: document.pdf -> Documents/
Moved: setup.exe -> Installers/
Moved: notes.txt -> Documents/Notes/
Moved: config.yaml -> Code/Config/
Moved: script.py -> Code/Scripts/

Organization Complete!
Files moved: 47, Errors: 0
Done!

Supported Categories

NoEntropy organizes files into these categories:

Category	Description
Images	PNG, JPG, GIF, SVG, etc.
Documents	PDF, DOC, DOCX, TXT, MD, etc.
Installers	EXE, DMG, APP, PKG, etc.
Music	MP3, WAV, FLAC, M4A, etc.
Archives	ZIP, TAR, RAR, 7Z, etc.
Code	Source code and configuration files
Misc	Everything else

Supported Text Formats

NoEntropy can read and analyze the content of 30+ text file formats:

Source Code: rs, py, js, ts, jsx, tsx, java, go, c, cpp, h, hpp, rb, php, swift, kt, scala, lua, r, m
Web/Config: html, css, json, xml, yaml, yml, toml, ini, cfg, conf
Documentation: txt, md, sql, sh, bat, ps1, log

Caching

NoEntropy includes an intelligent caching system to minimize API calls:

• Location: .noentropy_cache.json in project root
• Expiry: 7 days (old entries auto-removed)
• Change Detection: Uses file metadata (size + modification time) instead of full content hashing
• Max Entries: 1000 entries (oldest evicted when limit reached)

How Caching Works

1. First Run: Files are analyzed and categorized via Gemini API
2. Response Cached: Organization plan saved with file metadata
3. Subsequent Runs:
   • Checks if files changed (size/modification time)
   • If unchanged, uses cached categorization
   • If changed, re-analyzes via API
4. Auto-Cleanup: Removes cache entries older than 7 days

Troubleshooting

"API key not configured"

Solution: NoEntropy will prompt you for your API key on first run. Alternatively, manually create ~/.config/noentropy/config.toml:

api_key = "your_actual_api_key"
download_folder = "/home/user/Downloads"

"Download folder not configured"

Solution: NoEntropy will prompt you for the folder path on first run. Alternatively, manually add it to your config:

download_folder = "/path/to/your/Downloads"

"API rate limit exceeded"

Solution:

• Wait a few minutes before trying again
• Reduce --max-concurrent to limit API calls
• Use caching to reduce redundant requests

"Network error"

Solution:

• Check your internet connection
• Verify Gemini API service is operational
• Ensure firewall allows outbound HTTPS requests

"Failed to move file"

Solution:

• Check file permissions
• Ensure destination folder is writable
• Verify source files still exist

"Cache corrupted"

Solution: Delete .noentropy_cache.json and run again. A new cache will be created.

Development

Build in Debug Mode

cargo build

Build in Release Mode

cargo build --release

Run Tests

cargo test

Run Clippy (Linting)

cargo clippy

Check Code

cargo check

Project Structure

noentropy/
├── src/
│   ├── main.rs           # Entry point and CLI handling
│   ├── lib.rs            # Library exports
│   ├── config.rs         # Configuration management
│   ├── gemini.rs         # Gemini API client
│   ├── gemini_errors.rs  # Error handling
│   ├── cache.rs          # Caching system
│   └── files.rs          # File operations
├── Cargo.toml            # Dependencies
├── config.example.toml    # Configuration template
└── README.md             # This file

Future Enhancements

Based on community feedback, we're planning:

• Custom Categories - Define custom categories in config.toml
• Recursive Mode - Organize files in subdirectories with --recursive flag
• Undo Functionality - Revert file organization changes
• Custom Models - Support for other AI providers
• GUI Version - Desktop application for non-CLI users

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

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

License

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

Acknowledgments

• Built with Rust
• Powered by Google Gemini API
• Inspired by the endless struggle to keep Downloads folders organized

Show Your Support

⭐ Star this repository if you find it useful!

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Made with ❤️ by the NoEntropy team