s3: skip hidden directories in /buckets folder

weed/filer/filer_buckets.go

@@ -3,6 +3,7 @@ package filer
 import (
 	"context"
 	"math"
+	"strings"
 	"sync"
 
 	"github.com/chrislusf/seaweedfs/weed/glog"
@@ -78,6 +79,9 @@ func (f *Filer) isBucket(entry *Entry) bool {
 	if parent != f.DirBucketsPath {
 		return false
 	}
+	if strings.HasPrefix(dirName, ".") {
+		return false
+	}
 
 	f.buckets.RLock()
 	defer f.buckets.RUnlock()

weed/filer/filer_on_meta_event.go

@@ -24,13 +24,17 @@ func (f *Filer) onBucketEvents(event *filer_pb.SubscribeMetadataResponse) {
 	}
 	if f.DirBucketsPath == event.Directory {
 		if message.OldEntry == nil && message.NewEntry != nil {
+			if message.NewEntry.IsDirectory {
 				f.Store.OnBucketCreation(message.NewEntry.Name)
 			}
+		}
 		if message.OldEntry != nil && message.NewEntry == nil {
+			if message.OldEntry.IsDirectory {
 				f.Store.OnBucketDeletion(message.OldEntry.Name)
 			}
 		}
 	}
+}
 
 func (f *Filer) maybeReloadFilerConfiguration(event *filer_pb.SubscribeMetadataResponse) {
 	if DirectoryEtcSeaweedFS != event.Directory {