Revert "[enh] New backup and restore script adapted to 2.4"

This reverts commit 420eae2bf8.

scripts/backup

@@ -1,20 +1,15 @@
 #!/bin/bash
-# This backup script is adapted to Yunohost >=2.4
+app=ynhexample
 
-# The parameter $1 is the backup directory location dedicated to the app
+# The parameter $1 is the backup directory location
 # which will be compressed afterward
-backup_dir=$1
-
-# The parameter $2 is theid of the app instance ex: ynhexample__2
-app=$2
+backup_dir=$1/apps/$app
+sudo mkdir -p $backup_dir
 
 # Backup sources & data
-final_path=/var/www/$APP
-sudo cp -a $final_path "${backup_dir}/www" 
+sudo cp -a /var/www/$app/. $backup_dir/sources
 
-# Copy conf file
-sudo mkdir -p "${backup_dir}/conf"
+# Copy Nginx and YunoHost parameters to make the script "standalone"
+sudo cp -a /etc/yunohost/apps/$app/. $backup_dir/yunohost
 domain=$(sudo yunohost app setting $app domain)
-sudo cp -a /etc/nginx/conf.d/$domain.d/$app.conf "${backup_dir}/conf/nginx.conf"
-
-# Since Yunohost 2.4 no need to backup settings in /etc/yunohost/apps/$app
+sudo cp -a /etc/nginx/conf.d/$domain.d/$app.conf $backup_dir/nginx.conf