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package filesys
import ( "context" "os" "syscall" "time"
"github.com/chrislusf/seaweedfs/weed/glog" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" "github.com/seaweedfs/fuse" "github.com/seaweedfs/fuse/fs" )
var _ = fs.NodeSymlinker(&Dir{}) var _ = fs.NodeReadlinker(&File{})
func (dir *Dir) Symlink(ctx context.Context, req *fuse.SymlinkRequest) (fs.Node, error) {
glog.V(3).Infof("Symlink: %v/%v to %v", dir.Path, req.NewName, req.Target)
request := &filer_pb.CreateEntryRequest{ Directory: dir.Path, Entry: &filer_pb.Entry{ Name: req.NewName, IsDirectory: false, Attributes: &filer_pb.FuseAttributes{ Mtime: time.Now().Unix(), Crtime: time.Now().Unix(), FileMode: uint32(os.FileMode(0755) | os.ModeSymlink), Uid: req.Uid, Gid: req.Gid, SymlinkTarget: req.Target, }, }, }
err := dir.wfs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error { if _, err := client.CreateEntry(ctx, request); err != nil { glog.V(0).Infof("symlink %s/%s: %v", dir.Path, req.NewName, err) return fuse.EIO } return nil })
symlink := dir.newFile(req.NewName, request.Entry)
return symlink, err
}
func (file *File) Readlink(ctx context.Context, req *fuse.ReadlinkRequest) (string, error) {
if err := file.maybeLoadAttributes(ctx); err != nil { return "", err }
if os.FileMode(file.entry.Attributes.FileMode)&os.ModeSymlink == 0 { return "", fuse.Errno(syscall.EINVAL) }
glog.V(3).Infof("Readlink: %v/%v => %v", file.dir.Path, file.Name, file.entry.Attributes.SymlinkTarget)
return file.entry.Attributes.SymlinkTarget, nil
}
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