From ca43b0357f9af8a7200267b610ccb2336ec69717 Mon Sep 17 00:00:00 2001
From: cthuang <chungting@cloudflare.com>
Date: Tue, 15 Mar 2022 14:18:21 +0000
Subject: [PATCH] TUN-5867: Return error if service was already installed

---
 cmd/cloudflared/service_template.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cmd/cloudflared/service_template.go b/cmd/cloudflared/service_template.go
index 2aa29277..13725648 100644
--- a/cmd/cloudflared/service_template.go
+++ b/cmd/cloudflared/service_template.go
@@ -43,6 +43,10 @@ func (st *ServiceTemplate) Generate(args *ServiceTemplateArgs) error {
 	if err != nil {
 		return err
 	}
+	if _, err = os.Stat(resolvedPath); err == nil {
+		return fmt.Errorf("cloudflared service is already installed at %s", resolvedPath)
+	}
+
 	var buffer bytes.Buffer
 	err = tmpl.Execute(&buffer, args)
 	if err != nil {