to be re-written following fuse virtual file system

weed/mount/directory.go

@@ -0,0 +1,42 @@
+package mount
+
+import (
+	"bytes"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/hanwen/go-fuse/v2/fs"
+	"strings"
+)
+
+type Directory struct {
+	fs.Inode
+
+	name   string
+	wfs    *WFS
+	entry  *filer_pb.Entry
+	parent *Directory
+	id     uint64
+}
+
+func (dir *Directory) FullPath() string {
+	var parts []string
+	for p := dir; p != nil; p = p.parent {
+		if strings.HasPrefix(p.name, "/") {
+			if len(p.name) > 1 {
+				parts = append(parts, p.name[1:])
+			}
+		} else {
+			parts = append(parts, p.name)
+		}
+	}
+
+	if len(parts) == 0 {
+		return "/"
+	}
+
+	var buf bytes.Buffer
+	for i := len(parts) - 1; i >= 0; i-- {
+		buf.WriteString("/")
+		buf.WriteString(parts[i])
+	}
+	return buf.String()
+}