1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
<?php
/**
* Remove old objects from the parser cache.
* This only works when the parser cache is in an SQL database.
*
* 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 __DIR__ . '/Maintenance.php';
use MediaWiki\MediaWikiServices;
/**
* Maintenance script to remove old objects from the parser cache.
*
* @ingroup Maintenance
*/
class PurgeParserCache extends Maintenance {
public $lastProgress;
private $usleep = 0;
function __construct() {
parent::__construct();
$this->addDescription( "Remove old objects from the parser cache. " .
"This only works when the parser cache is in an SQL database." );
$this->addOption( 'expiredate', 'Delete objects expiring before this date.', false, true );
$this->addOption(
'age',
'Delete objects created more than this many seconds ago, assuming ' .
'$wgParserCacheExpireTime has remained consistent.',
false,
true );
$this->addOption( 'msleep', 'Milliseconds to sleep between purge chunks', false, true );
}
function execute() {
global $wgParserCacheExpireTime;
$inputDate = $this->getOption( 'expiredate' );
$inputAge = $this->getOption( 'age' );
if ( $inputDate !== null ) {
$date = wfTimestamp( TS_MW, strtotime( $inputDate ) );
} elseif ( $inputAge !== null ) {
$date = wfTimestamp( TS_MW, time() + $wgParserCacheExpireTime - intval( $inputAge ) );
} else {
$this->fatalError( "Must specify either --expiredate or --age" );
return;
}
$this->usleep = 1e3 * $this->getOption( 'msleep', 0 );
$english = Language::factory( 'en' );
$this->output( "Deleting objects expiring before " .
$english->timeanddate( $date ) . "\n" );
$pc = MediaWikiServices::getInstance()->getParserCache()->getCacheStorage();
$success = $pc->deleteObjectsExpiringBefore( $date, [ $this, 'showProgressAndWait' ] );
if ( !$success ) {
$this->fatalError( "\nCannot purge this kind of parser cache." );
}
$this->showProgressAndWait( 100 );
$this->output( "\nDone\n" );
}
public function showProgressAndWait( $percent ) {
usleep( $this->usleep ); // avoid lag; T150124
$percentString = sprintf( "%.2f", $percent );
if ( $percentString === $this->lastProgress ) {
return;
}
$this->lastProgress = $percentString;
$stars = floor( $percent / 2 );
$this->output( '[' . str_repeat( '*', $stars ) . str_repeat( '.', 50 - $stars ) . '] ' .
"$percentString%\r" );
}
}
$maintClass = PurgeParserCache::class;
require_once RUN_MAINTENANCE_IF_MAIN;
|
