870743489b
Originally submitted as commit 2cdeb26d0c.
This patch is fully backwards compatible. The Maintenance.php entry
point is now a true entry point (i.e. no classes defined), and it requires
all the *Maintenance classes.
Bug: T246780
Change-Id: I75b22f54b19fe560ab71349189598245af1c5693
76 lines
2.2 KiB
PHP
76 lines
2.2 KiB
PHP
<?php
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/**
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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*/
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/**
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* Class for scripts that perform database maintenance and want to log the
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* update in `updatelog` so we can later skip it
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* @ingroup Maintenance
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*/
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abstract class LoggedUpdateMaintenance extends Maintenance {
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public function __construct() {
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parent::__construct();
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$this->addOption( 'force', 'Run the update even if it was completed already' );
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$this->setBatchSize( 200 );
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}
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public function execute() {
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$db = $this->getDB( DB_MASTER );
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$key = $this->getUpdateKey();
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if ( !$this->hasOption( 'force' )
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&& $db->selectRow( 'updatelog', '1', [ 'ul_key' => $key ], __METHOD__ )
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) {
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$this->output( "..." . $this->updateSkippedMessage() . "\n" );
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return true;
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}
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if ( !$this->doDBUpdates() ) {
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return false;
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}
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$db->insert( 'updatelog', [ 'ul_key' => $key ], __METHOD__, [ 'IGNORE' ] );
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return true;
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}
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/**
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* Message to show that the update was done already and was just skipped
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* @return string
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*/
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protected function updateSkippedMessage() {
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$key = $this->getUpdateKey();
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return "Update '{$key}' already logged as completed. Use --force to run it again.";
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}
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/**
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* Do the actual work. All child classes will need to implement this.
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* Return true to log the update as done or false (usually on failure).
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* @return bool
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*/
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abstract protected function doDBUpdates();
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/**
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* Get the update key name to go in the update log table
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* @return string
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*/
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abstract protected function getUpdateKey();
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}
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