initial support for file logging

settings/pkg/command/root.go

@@ -66,6 +66,7 @@ func NewLogger(cfg *config.Config) log.Logger {
 		log.Level(cfg.Log.Level),
 		log.Pretty(cfg.Log.Pretty),
 		log.Color(cfg.Log.Color),
+		log.File(cfg.Log.File),
 	)
 }
 
@@ -124,6 +125,7 @@ func NewSutureService(cfg *ociscfg.Config) suture.Service {
 	if cfg.Mode == 0 {
 		cfg.Settings.Supervised = true
 	}
+	cfg.Settings.Log.File = cfg.Log.File
 	return SutureService{
 		cfg: cfg.Settings,
 	}

settings/pkg/config/config.go

@@ -7,6 +7,7 @@ type Log struct {
 	Level  string
 	Pretty bool
 	Color  bool
+	File   string
 }
 
 // Debug defines the available debug configuration.