refactor: log with zap

cmd/rc-steering/rc-steering.go

@@ -5,6 +5,7 @@ import (
 	"github.com/cyrilix/robocar-base/cli"
 	"github.com/cyrilix/robocar-steering/part"
 	"log"
+	"go.uber.org/zap"
 	"os"
 )
 
@@ -15,6 +16,7 @@ const (
 func main() {
 	var mqttBroker, username, password, clientId string
 	var steeringTopic, driveModeTopic, rcSteeringTopic, tfSteeringTopic string
+	var debug bool
 
 	mqttQos := cli.InitIntFlag("MQTT_QOS", 0)
 	_, mqttRetain := os.LookupEnv("MQTT_RETAIN")
@@ -26,12 +28,31 @@ func main() {
 	flag.StringVar(&tfSteeringTopic, "mqtt-topic-tf-steering", os.Getenv("MQTT_TOPIC_TF_STEERING"), "Mqtt topic that contains tenorflow steering value, use MQTT_TOPIC_TF_STEERING if args not set")
 	flag.StringVar(&driveModeTopic, "mqtt-topic-drive-mode", os.Getenv("MQTT_TOPIC_DRIVE_MODE"), "Mqtt topic that contains DriveMode value, use MQTT_TOPIC_DRIVE_MODE if args not set")
 
+	flag.BoolVar(&debug, "debug", false, "Display raw value to debug")
+
 	flag.Parse()
 	if len(os.Args) <= 1 {
 		flag.PrintDefaults()
 		os.Exit(1)
 	}
 
+	config := zap.NewDevelopmentConfig()
+	if debug {
+		config.Level = zap.NewAtomicLevelAt(zap.DebugLevel)
+	} else {
+		config.Level = zap.NewAtomicLevelAt(zap.InfoLevel)
+	}
+	lgr, err := config.Build()
+	if err != nil {
+		log.Fatalf("unable to init logger: %v", err)
+	}
+	defer func() {
+		if err := lgr.Sync(); err != nil {
+			log.Printf("unable to Sync logger: %v\n", err)
+		}
+	}()
+	zap.ReplaceGlobals(lgr)
+
 	client, err := cli.Connect(mqttBroker, username, password, clientId)
 	if err != nil {
 		log.Fatalf("unable to connect to mqtt bus: %v", err)
@@ -45,6 +66,6 @@ func main() {
 
 	err = p.Start()
 	if err != nil {
-		log.Fatalf("unable to start service: %v", err)
+		zap.S().Fatalf("unable to start service: %v", err)
 	}
 }