add log path for save it

src/main/main.go

@@ -17,6 +17,7 @@ import (
 type args struct {
 	Port     string `arg:"-p" help:"web server port"`
 	Path     string `arg:"-d" help:"database path"`
+	LogPath  string `arg:"-l" help:"log path"`
 	RDB      bool   `arg:"-r" help:"start in read-only DB mode"`
 	DontKill bool   `arg:"-k" help:"dont kill program on signal"`
 }
@@ -39,6 +40,8 @@ func main() {
 	}
 
 	settings.Path = params.Path
+	log.Init(params.LogPath)
+
 	dnsResolve()
 	Preconfig(params.DontKill)
 

src/server/log/log.go

@@ -2,8 +2,22 @@ package log
 
 import (
 	"log"
+	"os"
 )
 
+func Init(path string) {
+	if path != "" {
+		ff, err := os.Create(path)
+		if err != nil {
+			TLogln("Error create log file:", err)
+			return
+		}
+
+		os.Stdout = ff
+		os.Stderr = ff
+	}
+}
+
 func TLogln(v ...interface{}) {
 	log.Println(v...)
 }