From cd0d43fffb5653a6b2e6874077596dabbaab5050 Mon Sep 17 00:00:00 2001
From: Nick Craig-Wood <nick@craig-wood.com>
Date: Wed, 20 Mar 2019 11:59:00 +0000
Subject: [PATCH] fs: add missing PublicLink to mask

The enables wrapping file systems to declare that they don't support
PublicLink if the underlying fs doesn't.
---
 fs/fs.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fs/fs.go b/fs/fs.go
index f4552a589..feb081208 100644
--- a/fs/fs.go
+++ b/fs/fs.go
@@ -678,9 +678,15 @@ func (ft *Features) Mask(f Fs) *Features {
 	// if mask.UnWrap == nil {
 	// 	ft.UnWrap = nil
 	// }
+	// if mask.Wrapper == nil {
+	// 	ft.Wrapper = nil
+	// }
 	if mask.DirCacheFlush == nil {
 		ft.DirCacheFlush = nil
 	}
+	if mask.PublicLink == nil {
+		ft.PublicLink = nil
+	}
 	if mask.PutUnchecked == nil {
 		ft.PutUnchecked = nil
 	}