Allows you to re-launch a Cocoa app

Swift 4 - NSApp Relaunch.swift

import Cocoa



extension NSApplication {
    
    func relaunch(afterDelay seconds: TimeInterval = 0.5) -> Never {
        let task = Process()
        task.launchPath = "/bin/sh"
        task.arguments = ["-c", "sleep \(seconds); open \"\(Bundle.main.bundlePath)\""]
        task.launch()
        
        self.terminate(nil)
    }
}

I've tweaked this by making the extension and function to be public, and I placed exit(0) at the end: https://gist.github.com/BenLeggiero/449fb9b1a45b69fb276f4f9ad86cab7a