[dubbo-go] branch 1.5.1 updated: forbid excuting twice

[alexstocks]

This is an automated email from the ASF dual-hosted git repository.

alexstocks pushed a commit to branch 1.5.1
in repository https://gitbox.apache.org/repos/asf/dubbo-go.git


The following commit(s) were added to refs/heads/1.5.1 by this push:
     new aa796a8  forbid excuting twice
aa796a8 is described below

commit aa796a8f8382a4a6140211637cfe92c1ebc9f110
Author: cvictory <shenglic...@gmail.com>
AuthorDate: Tue Aug 18 14:54:06 2020 +0800

    forbid excuting twice
---
 common/logger/logger.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/common/logger/logger.go b/common/logger/logger.go
index b648f8a..63eda23 100644
--- a/common/logger/logger.go
+++ b/common/logger/logger.go
@@ -60,6 +60,10 @@ type Logger interface {
 }
 
 func init() {
+       // forbidden to executing twice.
+       if logger != nil {
+               return
+       }
        logConfFile := os.Getenv(constant.APP_LOG_CONF_FILE)
        err := InitLog(logConfFile)
        if err != nil {