feat: add compress command

backend/app/service/commands/compress.go

@@ -57,22 +57,23 @@ func Serve(cmd *cobra.Command, args []string) error {
 	}
 	log.Infof("start compressing %s", args[0])
 
-	if err := commandCompress(args[0]); err != nil {
-		log.WithError(err).Errorf("compressing %s failed", args[0])
-		return err
-	}
-
-	ticker := time.NewTicker(5 * time.Minute)
-	for range ticker.C {
+	failTimes := 0
+	for {
 		log.Infof("start compressing %s", args[0])
 
 		if err := commandCompress(args[0]); err != nil {
 			log.WithError(err).Errorf("compressing %s failed", args[0])
+			failTimes++
+
+			if failTimes >= 3 {
+				return errors.New("failed to compress after 3 attempts")
+			}
 			continue
 		}
 		log.Infof("compressing %s done", args[0])
+
+		time.Sleep(5 * time.Minute)
 	}
-	return nil
 }
 
 func commandCompress(dir string) error {