Use MacOS openApplicationAtURL syscall to re-run updated app

Author: cmaglie

update.go

@@ -41,5 +41,9 @@ func updateHandler(c *gin.Context) {
 		return
 	}
 	c.JSON(200, gin.H{"success": "Please wait a moment while the agent reboots itself"})
-	Systray.RestartWith(restartPath)
+	if restartPath == "quit" {
+		Systray.Quit()
+	} else {
+		Systray.RestartWith(restartPath)
+	}
 }

updater/updater_macos.go

@@ -17,6 +17,29 @@
 
 package updater
 
+/*
+#cgo CFLAGS: -x objective-c
+#cgo LDFLAGS: -framework Cocoa
+#import <Cocoa/Cocoa.h>
+
+void runApplication(const char *path) {
+	NSWorkspace *ws = [NSWorkspace sharedWorkspace];
+	NSURL *url = [NSURL fileURLWithPath:@(path) isDirectory:NO];
+
+	NSWorkspaceOpenConfiguration* configuration = [NSWorkspaceOpenConfiguration new];
+	//[configuration setEnvironment:env];
+	[configuration setPromptsUserIfNeeded:YES];
+	[configuration setCreatesNewApplicationInstance:YES];
+
+	dispatch_semaphore_t semaphore = dispatch_semaphore_create(0);
+	[ws openApplicationAtURL:url configuration:configuration completionHandler:^(NSRunningApplication* app, NSError* error) {
+		dispatch_semaphore_signal(semaphore);
+	}];
+	dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
+}
+*/
+import "C"
+
 import (
 	"bytes"
 	"context"
@@ -127,7 +150,9 @@ func checkForUpdates(currentVersion string, updateAPIURL, updateBinURL string, c
 	_ = oldAppPath.RemoveAll()
 
 	// Restart agent
-	newExecutable := currentAppPath.Join("Contents", "MacOS", "Arduino_Create_Agent")
-	logrus.WithField("path", newExecutable).Info("Running new app")
-	return newExecutable.String(), nil
+	logrus.WithField("path", currentAppPath).Info("Running new app")
+	C.runApplication(C.CString(currentAppPath.String()))
+
+	// Close old agent
+	return "quit", nil
 }