Restructure the go package

cmd/renderer/main.go

@@ -0,0 +1,84 @@
+package main
+
+import (
+	"fmt"
+	"net"
+	"time"
+
+	"github.com/sirupsen/logrus"
+	"github.com/spf13/viper"
+	"github.com/valyala/fasthttp"
+
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/config"
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/ghost/v4api/httpclient"
+	"code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/routes"
+	_ "code.tokarch.uk/mainnika/nikita-tokarch-uk/pkg/templates"
+)
+
+var Version = "nightly"
+
+const frontendServerIdentity = "Microsoft-IIS/6.0"
+
+func main() {
+
+	if viper.GetBool("version") {
+		fmt.Print(Version)
+		return
+	}
+
+	viper.SetConfigFile(viper.GetString("config"))
+	if err := viper.ReadInConfig(); err != nil {
+		logrus.Debugf("Skip invalid config file %s, %v", viper.ConfigFileUsed(), err)
+	}
+
+	config := &config.Config{}
+	if err := viper.Unmarshal(config); err != nil {
+		logrus.Warnf("Cannot unmarshal config, %v", err)
+	}
+
+	var netw, addr string
+	switch {
+	case config.Addr != "":
+		netw = "tcp"
+		addr = config.Addr
+	case config.Unix != "":
+		netw = "unix"
+		addr = config.Unix
+	default:
+		panic("no address given")
+	}
+	netListener, err := net.Listen(netw, addr)
+	if err != nil {
+		logrus.Fatal(err)
+	}
+
+	ghostClient := &httpclient.HTTPClient{
+		Addr:         config.Content.Backend.Addr,
+		Secured:      config.Content.Backend.Secured,
+		Headers:      config.Content.Backend.Headers,
+		ContentKey:   config.Content.Key,
+		QueryTimeout: time.Second,
+	}
+
+	apiRoutes := &routes.Routes{
+		GhostClient:   ghostClient,
+		ContentConfig: config.Content,
+		Base:          config.Base,
+	}
+
+	httpServer := fasthttp.Server{
+		Logger:  logrus.StandardLogger(),
+		Handler: apiRoutes.Handler,
+		Name:    frontendServerIdentity,
+		GetOnly: true,
+	}
+
+	logrus.Infof("Version: %s", Version)
+	logrus.Debugf("Addr: %s+%s", netw, addr)
+	logrus.Debugf("Conf: %#v", config)
+
+	err = httpServer.Serve(netListener)
+	if err != nil {
+		logrus.Fatal(err)
+	}
+}