BTRFS balance and scrub scheduler

plugins/dynamix/include/update.btrfs.php

@@ -0,0 +1,29 @@
+<?PHP
+/* Copyright 2005-2022, Lime Technology
+ * Copyright 2012-2022, Bergware International.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ */
+?>
+<?
+$docroot = $docroot ?? $_SERVER['DOCUMENT_ROOT'] ?: '/usr/local/emhttp';
+require_once "$docroot/webGui/include/Wrappers.php";
+
+[$job, $cmd] = explode(';',$_POST['#job']);
+$valid = "$docroot/plugins/dynamix/scripts/";
+if ($_POST['mode']>0 && substr($cmd,0,strlen($valid))==$valid) {
+  $hour = isset($_POST['hour']) ? $_POST['hour'] : '*';
+  $min  = isset($_POST['min'])  ? $_POST['min']  : '*';
+  $dotm = isset($_POST['dotm']) ? $_POST['dotm'] : '*';
+  $day  = isset($_POST['day'])  ? $_POST['day']  : '*';
+  $cron = "# Generated btrfs ".str_replace('_',' ',$job)." schedule:\n$min $hour $dotm * $day $cmd &> /dev/null\n\n";
+} else {
+  $cron = "";
+}
+parse_cron_cfg('dynamix', $job, $cron);
+?>