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1 <?php
2 /**
3  * Optional upgrade script to populate the fa_sha1 field
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License along
16  * with this program; if not, write to the Free Software Foundation, Inc.,
17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18  * http://www.gnu.org/copyleft/gpl.html
19  *
20  * @file
21  * @ingroup Maintenance
22  */
23
24 require_once __DIR__ . '/Maintenance.php';
25
26 /**
27  * Maintenance script to populate the fa_sha1 field.
28  *
29  * @ingroup Maintenance
30  * @since 1.21
31  */
32 class PopulateFilearchiveSha1 extends LoggedUpdateMaintenance {
33         public function __construct() {
34                 parent::__construct();
35                 $this->addDescription( 'Populate the fa_sha1 field from fa_storage_key' );
36         }
37
38         protected function getUpdateKey() {
39                 return 'populate fa_sha1';
40         }
41
42         protected function updateSkippedMessage() {
43                 return 'fa_sha1 column of filearchive table already populated.';
44         }
45
46         public function doDBUpdates() {
47                 $startTime = microtime( true );
48                 $dbw = $this->getDB( DB_MASTER );
49                 $table = 'filearchive';
50                 $conds = [ 'fa_sha1' => '', 'fa_storage_key IS NOT NULL' ];
51
52                 if ( !$dbw->fieldExists( $table, 'fa_sha1', __METHOD__ ) ) {
53                         $this->output( "fa_sha1 column does not exist\n\n", true );
54
55                         return false;
56                 }
57
58                 $this->output( "Populating fa_sha1 field from fa_storage_key\n" );
59                 $endId = $dbw->selectField( $table, 'MAX(fa_id)', false, __METHOD__ );
60
61                 $batchSize = $this->mBatchSize;
62                 $done = 0;
63
64                 do {
65                         $res = $dbw->select(
66                                 $table,
67                                 [ 'fa_id', 'fa_storage_key' ],
68                                 $conds,
69                                 __METHOD__,
70                                 [ 'LIMIT' => $batchSize ]
71                         );
72
73                         $i = 0;
74                         foreach ( $res as $row ) {
75                                 if ( $row->fa_storage_key == '' ) {
76                                         // Revision was missing pre-deletion
77                                         continue;
78                                 }
79                                 $sha1 = LocalRepo::getHashFromKey( $row->fa_storage_key );
80                                 $dbw->update( $table,
81                                         [ 'fa_sha1' => $sha1 ],
82                                         [ 'fa_id' => $row->fa_id ],
83                                         __METHOD__
84                                 );
85                                 $lastId = $row->fa_id;
86                                 $i++;
87                         }
88
89                         $done += $i;
90                         if ( $i !== $batchSize ) {
91                                 break;
92                         }
93
94                         // print status and let replica DBs catch up
95                         $this->output( sprintf(
96                                 "id %d done (up to %d), %5.3f%%  \r", $lastId, $endId, $lastId / $endId * 100 ) );
97                         wfWaitForSlaves();
98                 } while ( true );
99
100                 $processingTime = microtime( true ) - $startTime;
101                 $this->output( sprintf( "\nDone %d files in %.1f seconds\n", $done, $processingTime ) );
102
103                 return true; // we only updated *some* files, don't log
104         }
105 }
106
107 $maintClass = "PopulateFilearchiveSha1";
108 require_once RUN_MAINTENANCE_IF_MAIN;