MediaWiki  1.28.0
populateFilearchiveSha1.php
Go to the documentation of this file.
1 <?php
24 require_once __DIR__ . '/Maintenance.php';
25 
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 ) );
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 $maintClass = "PopulateFilearchiveSha1";
108 require_once RUN_MAINTENANCE_IF_MAIN;
wfWaitForSlaves($ifWritesSince=null, $wiki=false, $cluster=false, $timeout=null)
Waits for the replica DBs to catch up to the master position.
getDB($db, $groups=[], $wiki=false)
Returns a database to be used by current maintenance script.
require_once RUN_MAINTENANCE_IF_MAIN
Definition: maintenance.txt:50
const DB_MASTER
Definition: defines.php:23
$res
Definition: database.txt:21
addDescription($text)
Set the description text.
This document is intended to provide useful advice for parties seeking to redistribute MediaWiki to end users It s targeted particularly at maintainers for Linux since it s been observed that distribution packages of MediaWiki often break We ve consistently had to recommend that users seeking support use official tarballs instead of their distribution s and this often solves whatever problem the user is having It would be nice if this could such as
Definition: distributors.txt:9
output($out, $channel=null)
Throw some output to the user.
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition: injection.txt:35
Class for scripts that perform database maintenance and want to log the update in updatelog so we can...
static getHashFromKey($key)
Gets the SHA1 hash from a storage key.
Definition: LocalRepo.php:177
int $mBatchSize
Batch size.
Definition: Maintenance.php:98
Maintenance script to populate the fa_sha1 field.