add desktop notifications

goutil.go

@@ -293,3 +293,20 @@ func Execute(possibleCommands []Command) error {
 		return cmd.exec(os.Args[2:])
 	}
 }
+
+func Notify(head string, body string) error {
+	var cmd *exec.Cmd
+	goos := runtime.GOOS
+	switch goos {
+	case "windows":
+		cmd = nil
+	case "darwin":
+		cmd = exec.Command("osascript", "-e", `display notification "`+body+`" with title "`+head+`"`)
+	default:
+		cmd = exec.Command("notify-send", head, body)
+	}
+	if cmd != nil {
+		return cmd.Start()
+	}
+	return nil
+}