From 91bf10cf0e2961e5e2ccb3ee45166e83d7a08417 Mon Sep 17 00:00:00 2001
From: tituspijean <tituspijean@outlook.com>
Date: Sun, 30 Apr 2023 19:06:05 +0200
Subject: [PATCH] Fix downward compatibility

---
 scripts/upgrade | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/scripts/upgrade b/scripts/upgrade
index 178a811..db91abb 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -24,19 +24,19 @@ upgrade_type=$(ynh_check_app_version_changed)
 ynh_script_progression --message="Ensuring downward compatibility..." --weight=1
 
 # If fpm_footprint doesn't exist, create it
-if [ -z "$fpm_footprint" ]; then
+if [ -z "${fpm_footprint:-}" ]; then
 	fpm_footprint=medium
 	ynh_app_setting_set --app=$app --key=fpm_footprint --value=$fpm_footprint
 fi
 
 # If fpm_usage doesn't exist, create it
-if [ -z "$fpm_usage" ]; then
+if [ -z "${fpm_usage:-}" ]; then
 	fpm_usage=medium
 	ynh_app_setting_set --app=$app --key=fpm_usage --value=$fpm_usage
 fi
 
 # If with_sftp or password don't exist, create them
-if [ -z "$with_sftp" ] || [ -z "$password" ]; then
+if [ -z "${with_sftp:-}" ] || [ -z "${password:-}" ]; then
 	ynh_app_setting_set --app=$app --key=with_sftp --value="false"
  	ynh_app_setting_set --app=$app --key=password --value=$(ynh_string_random)
 fi