package filesys import ( "bazil.org/fuse" "bazil.org/fuse/fs" "context" "math" "path/filepath" "github.com/chrislusf/seaweedfs/weed/glog" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" ) func (dir *Dir) Rename(ctx context.Context, req *fuse.RenameRequest, newDirectory fs.Node) error { newDir := newDirectory.(*Dir) return dir.wfs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error { // find existing entry request := &filer_pb.LookupDirectoryEntryRequest{ Directory: dir.Path, Name: req.OldName, } glog.V(4).Infof("find existing directory entry: %v", request) resp, err := client.LookupDirectoryEntry(ctx, request) if err != nil { glog.V(0).Infof("renaming find %s/%s: %v", dir.Path, req.OldName, err) return fuse.ENOENT } entry := resp.Entry glog.V(4).Infof("found existing directory entry resp: %+v", resp) return moveEntry(ctx, client, dir.Path, entry, newDir.Path, req.NewName) }) } func moveEntry(ctx context.Context, client filer_pb.SeaweedFilerClient, oldParent string, entry *filer_pb.Entry, newParent, newName string) error { if entry.IsDirectory { currentDirPath := filepath.Join(oldParent, entry.Name) lastFileName := "" includeLastFile := false limit := math.MaxInt32 for limit > 0 { request := &filer_pb.ListEntriesRequest{ Directory: currentDirPath, StartFromFileName: lastFileName, InclusiveStartFrom: includeLastFile, Limit: 1024, } glog.V(4).Infof("read directory: %v", request) resp, err := client.ListEntries(ctx, request) if err != nil { glog.V(0).Infof("list %s: %v", oldParent, err) return fuse.EIO } if len(resp.Entries) == 0 { break } for _, item := range resp.Entries { lastFileName = item.Name err := moveEntry(ctx, client, currentDirPath, item, filepath.Join(newParent, newName), item.Name) if err != nil { return err } limit-- } if len(resp.Entries) < 1024 { break } } } // add to new directory { request := &filer_pb.CreateEntryRequest{ Directory: newParent, Entry: &filer_pb.Entry{ Name: newName, IsDirectory: entry.IsDirectory, Attributes: entry.Attributes, Chunks: entry.Chunks, }, } glog.V(1).Infof("create new entry: %v", request) if _, err := client.CreateEntry(ctx, request); err != nil { glog.V(0).Infof("renaming create %s/%s: %v", newParent, newName, err) return fuse.EIO } } // delete old entry { request := &filer_pb.DeleteEntryRequest{ Directory: oldParent, Name: entry.Name, IsDeleteData: false, } glog.V(1).Infof("remove old entry: %v", request) _, err := client.DeleteEntry(ctx, request) if err != nil { glog.V(0).Infof("renaming delete %s/%s: %v", oldParent, entry.Name, err) return fuse.EIO } } return nil }