From 954a55adbeea8d2d0808ffca70cf3eb763c37ff7 Mon Sep 17 00:00:00 2001
From: Benny~ <benny.think@gmail.com>
Date: Mon, 2 Mar 2020 21:38:55 +0800
Subject: [PATCH] add backward compatibility to exhaust path

---
 webp-server.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/webp-server.go b/webp-server.go
index 75030f0..67f9629 100644
--- a/webp-server.go
+++ b/webp-server.go
@@ -278,7 +278,12 @@ func main() {
 	confImgPath := path.Clean(config.ImgPath)
 	QUALITY := config.QUALITY
 	AllowedTypes := config.AllowedTypes
-	ExhaustPath := config.ExhaustPath
+	var ExhaustPath string
+	if len(config.ExhaustPath) == 0 {
+		ExhaustPath = "./exhaust"
+	} else {
+		ExhaustPath = config.ExhaustPath
+	}
 
 	if prefetch {
 		prefetchImages(confImgPath, ExhaustPath, QUALITY)