From 8ed0193b1de4b8bc06394c21c4c8229313a41604 Mon Sep 17 00:00:00 2001
From: Dan Callahan <dan.callahan@gmail.com>
Date: Mon, 2 Nov 2015 17:43:08 -0600
Subject: [PATCH] Resolve SC2115: 'Use "${var:?}" to ensure this never expands
 to /'

https://github.com/koalaman/shellcheck/wiki/SC2115
---
 plugins/apps/post-delete | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins/apps/post-delete b/plugins/apps/post-delete
index 91fe06e20..3a552c508 100755
--- a/plugins/apps/post-delete
+++ b/plugins/apps/post-delete
@@ -3,7 +3,7 @@ set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
 source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
 
 APP="$1"; IMAGE_REPO=$(get_app_image_repo $APP)
-[[ -n $APP ]] && rm -rf "$DOKKU_ROOT/$APP" > /dev/null
+[[ -n $APP ]] && rm -rf "${DOKKU_ROOT:?}/$APP" > /dev/null
 
 # remove all application containers & images
 # shellcheck disable=SC2046