Add proper logfile support

main.go

@@ -4,12 +4,14 @@ package main
 import (
 	"embed"
 	"flag"
+	"path"
 	"time"
 
 	"git.mstar.dev/mstar/goutils/other"
 	"github.com/go-webauthn/webauthn/webauthn"
 	"github.com/mstarongithub/passkey"
 	"github.com/rs/zerolog/log"
+	"gopkg.in/natefinch/lumberjack.v2"
 	"gorm.io/driver/postgres"
 	"gorm.io/gorm"
 
@@ -21,6 +23,7 @@ import (
 	"git.mstar.dev/mstar/linstrom/storage-new/dbgen"
 	"git.mstar.dev/mstar/linstrom/storage/cache"
 	webdebug "git.mstar.dev/mstar/linstrom/web/debug"
+	webpublic "git.mstar.dev/mstar/linstrom/web/public"
 )
 
 // TODO: Add frontend overwrite
@@ -38,7 +41,20 @@ var defaultDuck string
 func main() {
 	other.SetupFlags()
 	flag.Parse()
-	other.ConfigureLogging(nil)
+	logfile := getLogFilePathOrNil()
+	if logfile == nil {
+		other.ConfigureLogging(nil)
+		log.Warn().Msg("Can't write to target logfile, not creating one")
+	} else {
+		other.ConfigureLogging(&lumberjack.Logger{
+			Filename:   *logfile,
+			MaxSize:    500, // Megabytes
+			MaxBackups: 3,
+			MaxAge:     3, // Days
+			Compress:   false,
+		})
+		log.Info().Str("logfile", *logfile).Msg("Logging to stderr and logfile")
+	}
 	if err := config.ReadAndWriteToGlobal(*shared.FlagConfigFile); err != nil {
 		log.Fatal().
 			Err(err).
@@ -59,6 +75,16 @@ func main() {
 	}
 }
 
+func getLogFilePathOrNil() *string {
+	logfile := *shared.FlagLogFile
+	logPath := path.Dir(logfile)
+	if shared.IsWritable(logPath) {
+		return &logfile
+	} else {
+		return nil
+	}
+}
+
 func oldServer() {
 	storageCache, err := cache.NewCache(
 		config.GlobalConfig.Storage.MaxInMemoryCacheSize,
@@ -126,10 +152,14 @@ func newServer() {
 		log.Fatal().Err(err).Msg("Failed to insert self properly")
 	}
 	if *shared.FlagStartDebugServer {
-		log.Info().Msg("Starting debug server")
-		// TODO: Move into goroutine once public server also exists
-		if err = webdebug.New().Start(); err != nil {
-			log.Fatal().Err(err).Msg("Debug server failed")
-		}
+		go func() {
+			log.Info().Msg("Starting debug server")
+			if err = webdebug.New().Start(); err != nil {
+				log.Fatal().Err(err).Msg("Debug server failed")
+			}
+		}()
 	}
+	log.Info().Msg("Starting public server")
+	public := webpublic.New(":8080")
+	public.Start()
 }