Don't merge virtual repo when get a error which isn't path no exist (#548)

* Don't merge virtual repo when get a error which isn't path no exist

* Modify log info

fileserver/virtual_repo.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"errors"
 	"fmt"
 	"path/filepath"
 	"strings"
@@ -35,7 +36,10 @@ func mergeVirtualRepo(args ...string) error {
 	}
 
 	if virtual {
-		mergeRepo(repoID)
+		err := mergeRepo(repoID)
+		if err != nil {
+			log.Printf("%v", err)
+		}
 
 		go updateSizePool.AddTask(repoID)
 
@@ -52,7 +56,10 @@ func mergeVirtualRepo(args ...string) error {
 			continue
 		}
 
-		mergeRepo(id)
+		err := mergeRepo(id)
+		if err != nil {
+			log.Printf("%v", err)
+		}
 	}
 
 	go updateSizePool.AddTask(repoID)
@@ -88,7 +95,11 @@ func mergeRepo(repoID string) error {
 	}
 
 	var origRoot string
-	origRoot, _ = fsmgr.GetSeafdirIDByPath(origRepo.StoreID, origHead.RootID, vInfo.Path)
+	origRoot, err = fsmgr.GetSeafdirIDByPath(origRepo.StoreID, origHead.RootID, vInfo.Path)
+	if err != nil && !errors.Is(err, fsmgr.ErrPathNoExist) {
+		err := fmt.Errorf("failed to get seafdir id by path in origin repo %.10s: %v", origRepo.StoreID, err)
+		return err
+	}
 	if origRoot == "" {
 		newPath, _ := handleMissingVirtualRepo(origRepo, origHead, vInfo)
 		if newPath != "" {