[enh] rename default into auto

scripts/backup

@@ -27,6 +27,16 @@ final_path=$(ynh_app_setting_get $app final_path)
 domain=$(ynh_app_setting_get $app domain)
 db_name=$(ynh_app_setting_get $app db_name)
 
+#=================================================
+# APPLY BACKUP CORE ONLY POLICY
+#=================================================
+# Apply policy only if we are not in upgrade mode
+BACKUP_CORE_ONLY=${BACKUP_CORE_ONLY:-auto}
+if [ "$BACKUP_CORE_ONLY" == "auto" ] ; then
+    BACKUP_CORE_ONLY=$(ynh_app_setting_get $app backup_core_only)
+    BACKUP_CORE_ONLY=${BACKUP_CORE_ONLY:-0}
+fi
+
 #=================================================
 # STANDARD BACKUP STEPS
 #=================================================