From 2cf808c8256c37eb5ec8fb15d4691bf8549a58d4 Mon Sep 17 00:00:00 2001
From: Nick Craig-Wood <nick@craig-wood.com>
Date: Tue, 12 Dec 2017 13:52:58 +0000
Subject: [PATCH] ncdu: fix crashes on empty directories - fixes #1910

Up arrow or right arrow in an empty directory would crash ncdu
---
 cmd/ncdu/ncdu.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cmd/ncdu/ncdu.go b/cmd/ncdu/ncdu.go
index 227db165a..eb391f776 100644
--- a/cmd/ncdu/ncdu.go
+++ b/cmd/ncdu/ncdu.go
@@ -302,7 +302,7 @@ func (u *UI) move(d int) {
 	}
 
 	// check dirPos.offset in bounds
-	if dirPos.offset < 0 {
+	if entries == 0 || dirPos.offset < 0 {
 		dirPos.offset = 0
 	} else if dirPos.offset >= entries {
 		dirPos.offset = entries - 1
@@ -392,7 +392,7 @@ func (u *UI) setCurrentDir(d *scan.Dir) {
 
 // enters the current entry
 func (u *UI) enter() {
-	if u.d == nil {
+	if u.d == nil || len(u.entries) == 0 {
 		return
 	}
 	dirPos := u.dirPosMap[u.path]