From e4fc89d592957a2a1aacfdcfdcc681affee67b99 Mon Sep 17 00:00:00 2001
From: Joe Zou <yixian.zou@gmail.com>
Date: Mon, 27 Apr 2020 23:29:48 +0800
Subject: [PATCH] travis trigger

---
 config/service_config.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/config/service_config.go b/config/service_config.go
index 832430a9c..f45e78cd6 100644
--- a/config/service_config.go
+++ b/config/service_config.go
@@ -111,7 +111,7 @@ func NewServiceConfig(id string, context context.Context) *ServiceConfig {
 func getRandomPort(protocolConfigs []*ProtocolConfig) *list.List {
 	l := list.New()
 	for _, proto := range protocolConfigs {
-		if proto.Port != "" {
+		if len(proto.Port) > 0 {
 			continue
 		}
 
@@ -162,7 +162,7 @@ func (c *ServiceConfig) Export() error {
 
 		port := proto.Port
 
-		if proto.Port == "" {
+		if len(proto.Port) == 0 {
 			port = nextPort.Value.(string)
 			nextPort = nextPort.Next()
 		}
-- 
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