Chris Lu
7 years ago
2 changed files with 103 additions and 75 deletions
@ -0,0 +1,102 @@ |
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package filesys |
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import ( |
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"context" |
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"bazil.org/fuse" |
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"bazil.org/fuse/fs" |
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"github.com/chrislusf/seaweedfs/weed/glog" |
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"github.com/chrislusf/seaweedfs/weed/pb/filer_pb" |
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"path/filepath" |
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) |
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func (dir *Dir) Rename(ctx context.Context, req *fuse.RenameRequest, newDirectory fs.Node) error { |
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newDir := newDirectory.(*Dir) |
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return dir.wfs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error { |
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// find existing entry
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request := &filer_pb.LookupDirectoryEntryRequest{ |
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Directory: dir.Path, |
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Name: req.OldName, |
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} |
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glog.V(4).Infof("find existing directory entry: %v", request) |
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resp, err := client.LookupDirectoryEntry(ctx, request) |
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if err != nil { |
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glog.V(0).Infof("renaming find %s/%s: %v", dir.Path, req.OldName, err) |
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return fuse.ENOENT |
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} |
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entry := resp.Entry |
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glog.V(4).Infof("found existing directory entry resp: %+v", resp) |
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return moveEntry(ctx, client, dir.Path, entry, newDir.Path, req.NewName) |
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}) |
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} |
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func moveEntry(ctx context.Context, client filer_pb.SeaweedFilerClient, oldParent string, entry *filer_pb.Entry, newParent, newName string) error { |
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if entry.IsDirectory { |
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currentDirPath := filepath.Join(oldParent, entry.Name) |
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request := &filer_pb.ListEntriesRequest{ |
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Directory: currentDirPath, |
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} |
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glog.V(4).Infof("read directory: %v", request) |
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resp, err := client.ListEntries(ctx, request) |
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if err != nil { |
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glog.V(0).Infof("list %s: %v", oldParent, err) |
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return fuse.EIO |
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} |
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for _, item := range resp.Entries { |
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err := moveEntry(ctx, client, currentDirPath, item, filepath.Join(newParent, newName), item.Name) |
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if err != nil { |
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return err |
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} |
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} |
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} |
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// add to new directory
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{ |
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request := &filer_pb.CreateEntryRequest{ |
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Directory: newParent, |
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Entry: &filer_pb.Entry{ |
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Name: newName, |
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IsDirectory: entry.IsDirectory, |
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Attributes: entry.Attributes, |
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Chunks: entry.Chunks, |
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}, |
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} |
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glog.V(1).Infof("create new entry: %v", request) |
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if _, err := client.CreateEntry(ctx, request); err != nil { |
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glog.V(0).Infof("renaming create %s/%s: %v", newParent, newName, err) |
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return fuse.EIO |
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} |
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} |
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// delete old entry
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{ |
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request := &filer_pb.DeleteEntryRequest{ |
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Directory: oldParent, |
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Name: entry.Name, |
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IsDirectory: entry.IsDirectory, |
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IsDeleteData: false, |
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} |
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glog.V(1).Infof("remove old entry: %v", request) |
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_, err := client.DeleteEntry(ctx, request) |
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if err != nil { |
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glog.V(0).Infof("renaming delete %s/%s: %v", oldParent, entry.Name, err) |
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return fuse.EIO |
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} |
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} |
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return nil |
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|
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} |
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