From a5a2471f2c34f6bb1a6778e7f45da41f0a36dd49 Mon Sep 17 00:00:00 2001
From: Ying Zou <xpzouying@gmail.com>
Date: Wed, 28 Nov 2018 08:55:20 +0800
Subject: [PATCH] close fs only when fs open without error

panic when close nil filesystem
---
 template.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/template.go b/template.go
index d673a54d..1df17407 100644
--- a/template.go
+++ b/template.go
@@ -186,13 +186,13 @@ func BuildTemplate(dir string, files ...string) error {
 	var err error
 	fs := beeTemplateFS()
 	f, err := fs.Open(dir)
-	defer f.Close()
 	if err != nil {
 		if os.IsNotExist(err) {
 			return nil
 		}
 		return errors.New("dir open err")
 	}
+	defer f.Close()
 
 	beeTemplates, ok := beeViewPathTemplates[dir]
 	if !ok {