[mod] upgrade script simplified: does nothing except a backup.

scripts/upgrade

@@ -10,13 +10,6 @@ source _common.sh
 source /usr/share/yunohost/helpers
 
 #=================================================
-# MANAGE SCRIPT FAILURE
-#=================================================
-
-# Exit if an error occurs during the execution of the script
-ynh_abort_if_errors
-
-#=================================================
 # LOAD SETTINGS
 #=================================================
 
@@ -29,41 +22,13 @@ final_path=$(ynh_app_setting_get $app final_path)
 server_name=$(ynh_app_setting_get $app server_name)
 
 #=================================================
-# CHECK VERSION
+# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================
 
-ynh_abort_if_up_to_date
-
-#=================================================
-
-
-sudo mkdir -m 0700 -p /var/cache/labriqueinternet/vpnclient/
-sudo tar czf "/var/cache/labriqueinternet/vpnclient/rollback_$(date +%Y-%m-%d-%H%M%S).tgz" /etc/openvpn/ /etc/yunohost/apps/vpnclient/ &> /dev/null
-
-tmpdir=$(mktemp -dp /tmp/ vpnclient-upgrade-XXXXX)
-sudo cp -a /etc/yunohost/apps/vpnclient/settings.yml "${tmpdir}/"
-sudo cp -a /etc/openvpn/keys/ "${tmpdir}/"
-
-if [ ! -e /etc/openvpn/client.conf.tpl.restore ] || ! cmp -s /etc/openvpn/client.conf.tpl{,.restore}; then
-  sudo cp -a /etc/openvpn/client.conf.tpl "${tmpdir}/"
-fi
-
-export VPNCLIENT_UPGRADE=1
-sudo bash /etc/yunohost/apps/vpnclient/scripts/remove &> /dev/null
-bash ./install "${domain}" "${path}" "${server_name}"
-
-sudo rmdir /etc/openvpn/keys/
-sudo cp -a "${tmpdir}/keys/" /etc/openvpn/keys/
-sudo cp -a "${tmpdir}/settings.yml" /etc/yunohost/apps/vpnclient/
-sudo cp -a "${tmpdir}/client.conf.tpl" /etc/openvpn/ 2> /dev/null
-sudo rm -r "${tmpdir}/"
-
-# Changes
-
-if [ -z "$(ynh_setting vpnclient dns0)" ]; then
-  sudo yunohost app setting vpnclient dns0 -v 89.234.141.66
-  sudo yunohost app setting vpnclient dns1 -v 2001:913::8
-fi
-
-ynh_systemctl start ynh-vpnclient
+ynh_backup_before_upgrade
+ynh_clean_setup () {
+    ynh_restore_upgradebackup
+}
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors