diff --git a/.gitignore b/.gitignore
index c5e82d74..7acb1baf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
-bin
\ No newline at end of file
+./bin
+vendor
+.idea
\ No newline at end of file
diff --git a/cmd/go-mysql-elasticsearch/main.go b/cmd/go-mysql-elasticsearch/main.go
index af035075..8ad5d978 100644
--- a/cmd/go-mysql-elasticsearch/main.go
+++ b/cmd/go-mysql-elasticsearch/main.go
@@ -13,12 +13,12 @@ import (
 )
 
 var configFile = flag.String("config", "./etc/river.toml", "go-mysql-elasticsearch config file")
-var my_addr = flag.String("my_addr", "", "MySQL addr")
-var my_user = flag.String("my_user", "", "MySQL user")
-var my_pass = flag.String("my_pass", "", "MySQL password")
-var es_addr = flag.String("es_addr", "", "Elasticsearch addr")
-var data_dir = flag.String("data_dir", "", "path for go-mysql-elasticsearch to save data")
-var server_id = flag.Int("server_id", 0, "MySQL server id, as a pseudo slave")
+var myAddr = flag.String("my_addr", "", "MySQL addr")
+var myUser = flag.String("my_user", "", "MySQL user")
+var myPass = flag.String("my_pass", "", "MySQL password")
+var esAddr = flag.String("es_addr", "", "Elasticsearch addr")
+var dataDir = flag.String("data_dir", "", "path for go-mysql-elasticsearch to save data")
+var serverID = flag.Int("server_id", 0, "MySQL server id, as a pseudo slave")
 var flavor = flag.String("flavor", "", "flavor: mysql or mariadb")
 var execution = flag.String("exec", "", "mysqldump execution path")
 var logLevel = flag.String("log_level", "info", "log level")
@@ -44,28 +44,28 @@ func main() {
 		return
 	}
 
-	if len(*my_addr) > 0 {
-		cfg.MyAddr = *my_addr
+	if len(*myAddr) > 0 {
+		cfg.MyAddr = *myAddr
 	}
 
-	if len(*my_user) > 0 {
-		cfg.MyUser = *my_user
+	if len(*myUser) > 0 {
+		cfg.MyUser = *myUser
 	}
 
-	if len(*my_pass) > 0 {
-		cfg.MyPassword = *my_pass
+	if len(*myPass) > 0 {
+		cfg.MyPassword = *myPass
 	}
 
-	if *server_id > 0 {
-		cfg.ServerID = uint32(*server_id)
+	if *serverID > 0 {
+		cfg.ServerID = uint32(*serverID)
 	}
 
-	if len(*es_addr) > 0 {
-		cfg.ESAddr = *es_addr
+	if len(*esAddr) > 0 {
+		cfg.ESAddr = *esAddr
 	}
 
-	if len(*data_dir) > 0 {
-		cfg.DataDir = *data_dir
+	if len(*dataDir) > 0 {
+		cfg.DataDir = *dataDir
 	}
 
 	if len(*flavor) > 0 {