replication to create time date directory

weed/replication/sink/backupsink/backup_sink.go

@@ -0,0 +1,18 @@
+package backupsink
+
+import (
+	"github.com/chrislusf/seaweedfs/weed/replication/sink"
+	"github.com/chrislusf/seaweedfs/weed/replication/sink/localsink"
+)
+
+type BackupSink struct {
+	localsink.LocalSink
+}
+
+func (backupsink *BackupSink) GetName() string {
+	return "backup"
+}
+
+func init() {
+	sink.Sinks = append(sink.Sinks, &BackupSink{})
+}