From 9d4ac34f4b64f17ce2ea415f9b0a13f386ee491c Mon Sep 17 00:00:00 2001
From: Gilbert Chen <gchen@acrosync.com>
Date: Thu, 6 Jun 2019 12:35:34 -0400
Subject: [PATCH] Don't compare hashes of empty files in the diff command

Empty files may or may not have a hash depending if the -hash option is used
during backup.
---
 src/duplicacy_snapshotmanager.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/duplicacy_snapshotmanager.go b/src/duplicacy_snapshotmanager.go
index 383990a..e4e6c6f 100644
--- a/src/duplicacy_snapshotmanager.go
+++ b/src/duplicacy_snapshotmanager.go
@@ -1482,7 +1482,11 @@ func (manager *SnapshotManager) Diff(top string, snapshotID string, revisions []
 						same = right.IsSameAs(left)
 					}
 				} else {
-					same = left.Hash == right.Hash
+					if left.Size == 0 && right.Size == 0 {
+						same = true
+					} else {
+						same = left.Hash == right.Hash
+					}
 				}
 
 				if !same {