Disk Usage Sunburst

Disk Usage Sunburst 2.0 is a completely modernized WordPress plugin that visualizes your site’s disk usage through an interactive sunburst chart. Quickly identify large files and directories that may be consuming valuable storage space on your WordPress installation.

✨ New in Version 2.0

• Modern Architecture: Complete rewrite with object-oriented PHP and PSR-4 autoloading
• Enhanced Security: Proper nonce validation, capability checks, and input sanitization
• Performance Optimized: Timeout protection, memory management, and intelligent caching
• D3.js v7: Upgraded to the latest D3.js version with smooth animations and mobile support
• REST API: Full REST API endpoints for developers and external integrations
• Better UX: Responsive design, progress indicators, and detailed error reporting
• Export Options: Export charts as PNG, SVG, or raw JSON data
• WordPress 6.9+ Ready: Tested with the latest WordPress versions

🎯 Key Features

• Interactive Sunburst Chart: Click to zoom in/out through your directory structure
• Real-time Tooltips: Hover for detailed file/directory information
• Performance Settings: Configurable limits for large installations
• Cache Management: Smart caching with manual cache clearing options
• Multisite Compatible: Works seamlessly on WordPress multisite networks
• Developer Friendly: Action hooks, filters, and REST API endpoints
• Accessibility: Keyboard navigation and screen reader support

🔧 Technical Requirements

• WordPress 5.0 or higher
• PHP 7.4 or higher (PHP 8.3+ recommended; PHP 7.4 is end-of-life)
• Modern browser with SVG support

🎨 How to Use

1. Navigate to Tools -> Disk Usage in your WordPress admin
2. Click “Start Scan” to analyze your installation
3. Interact with the sunburst chart:
   • Click on any arc to zoom into that directory
   • Click the center circle to zoom back out
   • Hover over arcs to see detailed information
   • Use keyboard: ESC to zoom out, Home to return to root

🔌 Developer Features

• REST API endpoints at /wp-json/disk-usage/v1/
• Action hooks: rbdusb_scan_completed, rbdusb_scan_error
• Filter hooks: rbdusb_exclude_paths, rbdusb_scan_results
• WP-CLI support (coming soon)

Questions? Contact us: support (at) raidboxes.de

Thanks

Thanks to Mike Bostock for his great “d3js”: http://d3js.org

Thanks to Mike Bostock for his awesome “Zoomable Sunburst” implementation: http://bl.ocks.org/mbostock/4348373

Thanks to Jeffrey Sambells for his “Human Readable File Size with PHP”: http://jeffreysambells.com/2012/10/25/human-readable-filesize-php