diff options
Diffstat (limited to 'weed/filesys/dir_link.go')
| -rw-r--r-- | weed/filesys/dir_link.go | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/weed/filesys/dir_link.go b/weed/filesys/dir_link.go new file mode 100644 index 000000000..61ed04c26 --- /dev/null +++ b/weed/filesys/dir_link.go @@ -0,0 +1,66 @@ +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(0777) | os.ModeSymlink) &^ dir.wfs.option.Umask), + Uid: req.Uid, + Gid: req.Gid, + SymlinkTarget: req.Target, + }, + }, + } + + err := dir.wfs.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error { + if err := filer_pb.CreateEntry(client, 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.maybeLoadEntry(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 + +} |
