MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / maintenance / lag.php

diff --git a/maintenance/lag.php b/maintenance/lag.php
index fdc7429315096325728c400fb924b7e72ae2ac38..fa2bd54e036fad2e6b962c688d02050f3a7ccd82 100644 (file)
--- a/maintenance/lag.php
+++ b/maintenance/lag.php
@@ -1,17 +1,37 @@
 <?php
-
 /**
  * Shows database lag
  *
+ * 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
  */
 
-require_once( dirname( __FILE__ ) . '/Maintenance.php' );
+require_once __DIR__ . '/Maintenance.php';
 
+/**
+ * Maintenance script to show database lag.
+ *
+ * @ingroup Maintenance
+ */
 class DatabaseLag extends Maintenance {
        public function __construct() {
                parent::__construct();
-               $this->mDescription = "Shows database lag";
+               $this->addDescription( 'Shows database lag' );
                $this->addOption( 'r', "Don't exit immediately, but show the lag every 5 seconds" );
        }
 
@@ -19,19 +39,20 @@ class DatabaseLag extends Maintenance {
                if ( $this->hasOption( 'r' ) ) {
                        $lb = wfGetLB();
                        echo 'time     ';
-                       for ( $i = 1; $i < $lb->getServerCount(); $i++ ) {
+
+                       $serverCount = $lb->getServerCount();
+                       for ( $i = 1; $i < $serverCount; $i++ ) {
                                $hostname = $lb->getServerName( $i );
                                printf( "%-12s ", $hostname );
                        }
                        echo "\n";
 
                        while ( 1 ) {
-                               $lb->clearLagTimeCache();
                                $lags = $lb->getLagTimes();
                                unset( $lags[0] );
                                echo gmdate( 'H:i:s' ) . ' ';
                                foreach ( $lags as $lag ) {
-                                       printf( "%-12s " , $lag === false ? 'false' : $lag );
+                                       printf( "%-12s ", $lag === false ? 'false' : $lag );
                                }
                                echo "\n";
                                sleep( 5 );
@@ -41,11 +62,11 @@ class DatabaseLag extends Maintenance {
                        $lags = $lb->getLagTimes();
                        foreach ( $lags as $i => $lag ) {
                                $name = $lb->getServerName( $i );
-                               $this->output( sprintf( "%-20s %s\n" , $name, $lag === false ? 'false' : $lag ) );
+                               $this->output( sprintf( "%-20s %s\n", $name, $lag === false ? 'false' : $lag ) );
                        }
                }
        }
 }
 
 $maintClass = "DatabaseLag";
-require_once( RUN_MAINTENANCE_IF_MAIN );
+require_once RUN_MAINTENANCE_IF_MAIN;