wiki.techinc.nl/maintenance/waitForSlave.php
Chad Horohoe 26505b170a Fix concern raised by Brion in r74108 (but has really existed since the maintenance rewrite). Right now, including a maintenance script causes it to execute. This is bad when you want to reuse the particular class but not have it start executing all by itself.
Until now, we relied on setting MW_NO_SETUP which was a) hacky, b) irreversable, and c) likely to be forgotten if you didn't use one of the wrappers like runChild().

Instead, move the freaky magic to doMaintenance and have *it* check if it's in a specific call stack that indicates this is being run from the file scope and should be executed. Rename DO_MAINTENANCE to RUN_MAINTENANCE_IF_MAIN so it's nice and clear what magic happens behind the require_once().
2011-01-13 22:58:55 +00:00

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PHP

<?php
/**
* Script to wait until slave lag goes under a certain value.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Maintenance
* @see wfWaitForSlaves()
*/
require_once( dirname( __FILE__ ) . '/Maintenance.php' );
class WaitForSlave extends Maintenance {
public function __construct() {
$this->addArg( 'maxlag', 'How long to wait for the slaves, default 10 seconds', false );
}
public function execute() {
wfWaitForSlaves( $this->getArg( 0, 10 ) );
}
}
$maintClass = "WaitForSlave";
require_once( RUN_MAINTENANCE_IF_MAIN );