add helper

helper.go

@@ -0,0 +1,35 @@
+package daemon
+
+import (
+	"os"
+	"os/exec"
+	"os/user"
+)
+
+// Service constants
+const (
+	rootPrivileges = "You must have root user privileges. Possibly using 'sudo' command should help"
+	success        = "\t\t\t\t\t[  \033[32mOK\033[0m  ]" // Show colored "OK"
+	failed         = "\t\t\t\t\t[\033[31mFAILED\033[0m]" // Show colored "FAILED"
+)
+
+// Lookup path for executable file
+func executablePath(name string) (string, error) {
+	if path, err := exec.LookPath(name); err == nil {
+		_, err := os.Stat(path)
+		if os.IsNotExist(err) {
+			return execPath()
+		}
+		return path, nil
+	}
+	return execPath()
+}
+
+// Check root rights to use system service
+func checkPrivileges() bool {
+
+	if user, err := user.Current(); err == nil && user.Gid == "0" {
+		return true
+	}
+	return false
+}