robocar-tools/cmd/rc-display/rc-display.go

48 lines
1.0 KiB
Go

package main
import (
"flag"
"github.com/cyrilix/robocar-base/cli"
"github.com/cyrilix/robocar-display/part"
"log"
"os"
)
const (
DefaultClientId = "robocar-frame-display"
)
func main() {
var mqttBroker, username, password, clientId string
var frameTopic string
mqttQos := cli.InitIntFlag("MQTT_QOS", 0)
_, mqttRetain := os.LookupEnv("MQTT_RETAIN")
cli.InitMqttFlags(DefaultClientId, &mqttBroker, &username, &password, &clientId, &mqttQos, &mqttRetain)
flag.StringVar(&frameTopic, "mqtt-topic-frame", os.Getenv("MQTT_TOPIC_FRAME"), "Mqtt topic that contains frame to display, use MQTT_TOPIC_FRAME if args not set")
flag.Parse()
if len(os.Args) <= 1 {
flag.PrintDefaults()
os.Exit(1)
}
client, err := cli.Connect(mqttBroker, username, password, clientId)
if err != nil {
log.Fatalf("unable to connect to mqtt bus: %v", err)
}
defer client.Disconnect(50)
p := part.NewPart(client, frameTopic)
defer p.Stop()
cli.HandleExit(p)
err = p.Start()
if err != nil {
log.Fatalf("unable to start service: %v", err)
}
}