Shredder

Shredder is a file shredding application written in Go. It irreversibly overwrites files with random data, rendering them unusable while keeping the file intact.

Features

• Secure File Shredding: Overwrites file contents with random data for a specified number of passes.
• Cross-Platform Compatibility: Supports macOS and Windows.
• Interactive TUI: A terminal user interface built with tview for easy navigation and operation.
• Native File Dialog Integration
• Safety Checks:
  • Empty files (0 bytes) are detected and flagged as unnecessary for shredding.
  • A maximum pass count is enforced (default is 10, configurable in the code) to prevent excessive processing and storage decay.
• Logging: Visual feedback is provided via a log window in the TUI, displaying status messages and error notifications.

How It Works

1. Select a File:
   Use the "Select a File" button to open a native file dialog and choose a file to shred.

2. Configure Passes:
   Enter the desired number of overwrite passes (secure deletion standards typically require 3 to 7 passes).

3. Start Shredding:
   Click "Start Shredding" to begin the process. The application overwrites the file content in chunks with random data, logging progress and any errors encountered.

4. Quit:
   Use the "Quit" button to exit the application or just do CTRL + C.

Usage (from source)

Clone the repository, install dependencies, and run the application using the following commands:

go mod tidy
go run cmd/main.go

System Requirements

• Go: Version 1.24 or higher.
• Operating System: macOS or Windows.
• Dependencies:
  • tview for the TUI.
  • tcell for terminal cell handling.
  • sqweek/dialog (or AppleScript based logic for macOS) for file selection.