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| 1 | <?php |
| 2 | /** |
| 3 | * Remove pages with only 1 revision from the MediaWiki namespace, without |
| 4 | * flooding recent changes, delete logs, etc. |
| 5 | * Irreversible (can't use standard undelete) and does not update link tables |
| 6 | * |
| 7 | * This is mainly useful to run before maintenance/update.php when upgrading |
| 8 | * to 1.9, to prevent flooding recent changes/deletion logs. It's intended |
| 9 | * to be conservative, so it's possible that a few entries will be left for |
| 10 | * deletion by the upgrade script. It's also possible that it hasn't been |
| 11 | * tested thouroughly enough, and will delete something it shouldn't; so |
| 12 | * back up your DB if there's anything in the MediaWiki that is important to |
| 13 | * you. |
| 14 | * |
| 15 | * This program is free software; you can redistribute it and/or modify |
| 16 | * it under the terms of the GNU General Public License as published by |
| 17 | * the Free Software Foundation; either version 2 of the License, or |
| 18 | * (at your option) any later version. |
| 19 | * |
| 20 | * This program is distributed in the hope that it will be useful, |
| 21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 23 | * GNU General Public License for more details. |
| 24 | * |
| 25 | * You should have received a copy of the GNU General Public License along |
| 26 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 27 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 28 | * http://www.gnu.org/copyleft/gpl.html |
| 29 | * |
| 30 | * @file |
| 31 | * @ingroup Maintenance |
| 32 | * @author Steve Sanbeg |
| 33 | * based on nukePage by Rob Church |
| 34 | */ |
| 35 | |
| 36 | // @codeCoverageIgnoreStart |
| 37 | require_once __DIR__ . '/Maintenance.php'; |
| 38 | // @codeCoverageIgnoreEnd |
| 39 | |
| 40 | use MediaWiki\Maintenance\Maintenance; |
| 41 | use MediaWiki\Title\Title; |
| 42 | |
| 43 | /** |
| 44 | * Maintenance script that removes pages with only one revision from the |
| 45 | * MediaWiki namespace. |
| 46 | * |
| 47 | * @ingroup Maintenance |
| 48 | */ |
| 49 | class NukeNS extends Maintenance { |
| 50 | public function __construct() { |
| 51 | parent::__construct(); |
| 52 | $this->addDescription( 'Remove pages with only 1 revision from any namespace' ); |
| 53 | $this->addOption( 'delete', "Actually delete the page" ); |
| 54 | $this->addOption( 'ns', 'Namespace to delete from, default NS_MEDIAWIKI', false, true ); |
| 55 | $this->addOption( 'all', 'Delete everything regardless of revision count' ); |
| 56 | } |
| 57 | |
| 58 | public function execute() { |
| 59 | $ns = $this->getOption( 'ns', NS_MEDIAWIKI ); |
| 60 | $delete = $this->hasOption( 'delete' ); |
| 61 | $all = $this->hasOption( 'all' ); |
| 62 | $dbw = $this->getPrimaryDB(); |
| 63 | $this->beginTransaction( $dbw, __METHOD__ ); |
| 64 | |
| 65 | $res = $dbw->newSelectQueryBuilder() |
| 66 | ->select( 'page_title' ) |
| 67 | ->from( 'page' ) |
| 68 | ->where( [ 'page_namespace' => $ns ] ) |
| 69 | ->caller( __METHOD__ )->fetchResultSet(); |
| 70 | |
| 71 | $n_deleted = 0; |
| 72 | |
| 73 | foreach ( $res as $row ) { |
| 74 | // echo "$ns_name:".$row->page_title, "\n"; |
| 75 | $title = Title::makeTitle( $ns, $row->page_title ); |
| 76 | $id = $title->getArticleID(); |
| 77 | |
| 78 | // Get corresponding revisions |
| 79 | $revs = $dbw->newSelectQueryBuilder() |
| 80 | ->select( 'rev_id' ) |
| 81 | ->from( 'revision' ) |
| 82 | ->where( [ 'rev_page' => $id ] ) |
| 83 | ->caller( __METHOD__ )->fetchFieldValues(); |
| 84 | $count = count( $revs ); |
| 85 | |
| 86 | // skip anything that looks modified (i.e. multiple revs) |
| 87 | if ( $all || $count == 1 ) { |
| 88 | # echo $title->getPrefixedText(), "\t", $count, "\n"; |
| 89 | $this->output( "delete: " . $title->getPrefixedText() . "\n" ); |
| 90 | |
| 91 | // as much as I hate to cut & paste this, it's a little different, and |
| 92 | // I already have the id & revs |
| 93 | if ( $delete ) { |
| 94 | $dbw->newDeleteQueryBuilder() |
| 95 | ->deleteFrom( 'page' ) |
| 96 | ->where( [ 'page_id' => $id ] ) |
| 97 | ->caller( __METHOD__ )->execute(); |
| 98 | $this->commitTransaction( $dbw, __METHOD__ ); |
| 99 | // Delete revisions as appropriate |
| 100 | /** @var NukePage $child */ |
| 101 | $child = $this->runChild( NukePage::class, 'nukePage.php' ); |
| 102 | '@phan-var NukePage $child'; |
| 103 | $child->deleteRevisions( $revs ); |
| 104 | $n_deleted++; |
| 105 | } |
| 106 | } else { |
| 107 | $this->output( "skip: " . $title->getPrefixedText() . "\n" ); |
| 108 | } |
| 109 | } |
| 110 | $this->commitTransaction( $dbw, __METHOD__ ); |
| 111 | |
| 112 | if ( $n_deleted > 0 ) { |
| 113 | $this->purgeRedundantText( true ); |
| 114 | |
| 115 | # update statistics - better to decrement existing count, or just count |
| 116 | # the page table? |
| 117 | $pages = $dbw->newSelectQueryBuilder() |
| 118 | ->select( 'ss_total_pages' ) |
| 119 | ->from( 'site_stats' ) |
| 120 | ->caller( __METHOD__ )->fetchField(); |
| 121 | $pages -= $n_deleted; |
| 122 | $dbw->newUpdateQueryBuilder() |
| 123 | ->update( 'site_stats' ) |
| 124 | ->set( [ 'ss_total_pages' => $pages ] ) |
| 125 | ->where( [ 'ss_row_id' => 1 ] ) |
| 126 | ->caller( __METHOD__ ) |
| 127 | ->execute(); |
| 128 | } |
| 129 | |
| 130 | if ( !$delete ) { |
| 131 | $this->output( "To update the database, run the script with the --delete option.\n" ); |
| 132 | } |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | // @codeCoverageIgnoreStart |
| 137 | $maintClass = NukeNS::class; |
| 138 | require_once RUN_MAINTENANCE_IF_MAIN; |
| 139 | // @codeCoverageIgnoreEnd |