mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-12-25 10:17:55 +08:00
73 lines
1.9 KiB
Go
73 lines
1.9 KiB
Go
package filesys
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import (
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"context"
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"os"
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"syscall"
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"time"
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"github.com/chrislusf/seaweedfs/weed/filer2"
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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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"github.com/seaweedfs/fuse"
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"github.com/seaweedfs/fuse/fs"
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)
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var _ = fs.NodeSymlinker(&Dir{})
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var _ = fs.NodeReadlinker(&File{})
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func (dir *Dir) Symlink(ctx context.Context, req *fuse.SymlinkRequest) (fs.Node, error) {
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glog.V(3).Infof("Symlink: %v/%v to %v", dir.FullPath(), req.NewName, req.Target)
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request := &filer_pb.CreateEntryRequest{
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Directory: dir.FullPath(),
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Entry: &filer_pb.Entry{
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Name: req.NewName,
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IsDirectory: false,
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Attributes: &filer_pb.FuseAttributes{
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Mtime: time.Now().Unix(),
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Crtime: time.Now().Unix(),
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FileMode: uint32((os.FileMode(0777) | os.ModeSymlink) &^ dir.wfs.option.Umask),
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Uid: req.Uid,
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Gid: req.Gid,
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SymlinkTarget: req.Target,
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},
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},
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}
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err := dir.wfs.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
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if err := filer_pb.CreateEntry(client, request); err != nil {
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glog.V(0).Infof("symlink %s/%s: %v", dir.FullPath(), req.NewName, err)
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return fuse.EIO
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}
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if dir.wfs.option.AsyncMetaDataCaching {
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dir.wfs.metaCache.InsertEntry(context.Background(), filer2.FromPbEntry(request.Directory, request.Entry))
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}
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return nil
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})
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symlink := dir.newFile(req.NewName, request.Entry)
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return symlink, err
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}
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func (file *File) Readlink(ctx context.Context, req *fuse.ReadlinkRequest) (string, error) {
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if err := file.maybeLoadEntry(ctx); err != nil {
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return "", err
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}
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if os.FileMode(file.entry.Attributes.FileMode)&os.ModeSymlink == 0 {
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return "", fuse.Errno(syscall.EINVAL)
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}
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glog.V(3).Infof("Readlink: %v/%v => %v", file.dir.FullPath(), file.Name, file.entry.Attributes.SymlinkTarget)
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return file.entry.Attributes.SymlinkTarget, nil
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}
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