247 lines
7.5 KiB
PHP
247 lines
7.5 KiB
PHP
<?php
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/**
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* Copy all files in FileRepo to an originals container using SHA1 paths.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Maintenance
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*/
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use MediaWiki\MediaWikiServices;
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require_once __DIR__ . '/Maintenance.php';
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/**
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* Copy all files in FileRepo to an originals container using SHA1 paths.
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*
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* This script should be run while the repo is still set to the old layout.
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*
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* @ingroup Maintenance
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*/
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class MigrateFileRepoLayout extends Maintenance {
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public function __construct() {
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parent::__construct();
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$this->addDescription( 'Copy files in repo to a different layout.' );
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$this->addOption( 'oldlayout', "Old layout; one of 'name' or 'sha1'", true, true );
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$this->addOption( 'newlayout', "New layout; one of 'name' or 'sha1'", true, true );
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$this->addOption( 'since', "Copy only files from after this timestamp", false, true );
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$this->setBatchSize( 50 );
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}
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public function execute() {
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$oldLayout = $this->getOption( 'oldlayout' );
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if ( !in_array( $oldLayout, [ 'name', 'sha1' ] ) ) {
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$this->fatalError( "Invalid old layout." );
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}
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$newLayout = $this->getOption( 'newlayout' );
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if ( !in_array( $newLayout, [ 'name', 'sha1' ] ) ) {
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$this->fatalError( "Invalid new layout." );
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}
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$since = $this->getOption( 'since' );
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$repo = $this->getRepo();
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$be = $repo->getBackend();
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if ( $be instanceof FileBackendDBRepoWrapper ) {
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// avoid path translations for this script
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$be = $be->getInternalBackend();
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}
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$dbw = $repo->getPrimaryDB();
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$origBase = $be->getContainerStoragePath( "{$repo->getName()}-original" );
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$startTime = wfTimestampNow();
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// Do current and archived versions...
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$conds = [];
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if ( $since ) {
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$conds[] = 'img_timestamp >= ' . $dbw->addQuotes( $dbw->timestamp( $since ) );
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}
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$batchSize = $this->getBatchSize();
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$batch = [];
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$lastName = '';
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do {
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$res = $dbw->select( 'image',
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[ 'img_name', 'img_sha1' ],
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array_merge( [ 'img_name > ' . $dbw->addQuotes( $lastName ) ], $conds ),
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__METHOD__,
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[ 'LIMIT' => $batchSize, 'ORDER BY' => 'img_name' ]
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);
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foreach ( $res as $row ) {
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$lastName = $row->img_name;
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/** @var LocalFile $file */
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$file = $repo->newFile( $row->img_name );
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// Check in case SHA1 rows are not populated for some files
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$sha1 = strlen( $row->img_sha1 ) ? $row->img_sha1 : $file->getSha1();
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if ( !strlen( $sha1 ) ) {
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$this->error( "Image SHA-1 not known for {$row->img_name}." );
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} else {
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if ( $oldLayout === 'sha1' ) {
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$spath = "{$origBase}/{$sha1[0]}/{$sha1[1]}/{$sha1[2]}/{$sha1}";
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} else {
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$spath = $file->getPath();
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}
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if ( $newLayout === 'sha1' ) {
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$dpath = "{$origBase}/{$sha1[0]}/{$sha1[1]}/{$sha1[2]}/{$sha1}";
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} else {
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$dpath = $file->getPath();
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}
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$status = $be->prepare( [
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'dir' => dirname( $dpath ), 'bypassReadOnly' => 1 ] );
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if ( !$status->isOK() ) {
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$this->error( print_r( $status->getErrors(), true ) );
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}
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$batch[] = [ 'op' => 'copy', 'overwrite' => true,
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'src' => $spath, 'dst' => $dpath, 'img' => $row->img_name ];
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}
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foreach ( $file->getHistory() as $ofile ) {
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$sha1 = $ofile->getSha1();
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if ( !strlen( $sha1 ) ) {
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$this->error( "Image SHA-1 not set for {$ofile->getArchiveName()}." );
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continue;
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}
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if ( $oldLayout === 'sha1' ) {
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$spath = "{$origBase}/{$sha1[0]}/{$sha1[1]}/{$sha1[2]}/{$sha1}";
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} elseif ( $ofile->isDeleted( File::DELETED_FILE ) ) {
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$spath = $be->getContainerStoragePath( "{$repo->getName()}-deleted" ) .
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'/' . $repo->getDeletedHashPath( $sha1 ) .
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$sha1 . '.' . $ofile->getExtension();
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} else {
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$spath = $ofile->getPath();
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}
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if ( $newLayout === 'sha1' ) {
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$dpath = "{$origBase}/{$sha1[0]}/{$sha1[1]}/{$sha1[2]}/{$sha1}";
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} else {
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$dpath = $ofile->getPath();
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}
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$status = $be->prepare( [
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'dir' => dirname( $dpath ), 'bypassReadOnly' => 1 ] );
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if ( !$status->isOK() ) {
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$this->error( print_r( $status->getErrors(), true ) );
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}
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$batch[] = [ 'op' => 'copy', 'overwrite' => true,
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'src' => $spath, 'dst' => $dpath, 'img' => $ofile->getArchiveName() ];
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}
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if ( count( $batch ) >= $batchSize ) {
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$this->runBatch( $batch, $be );
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$batch = [];
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}
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}
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} while ( $res->numRows() );
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if ( count( $batch ) ) {
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$this->runBatch( $batch, $be );
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}
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// Do deleted versions...
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$conds = [];
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if ( $since ) {
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$conds[] = 'fa_deleted_timestamp >= ' . $dbw->addQuotes( $dbw->timestamp( $since ) );
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}
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$batch = [];
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$lastId = 0;
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do {
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$res = $dbw->select( 'filearchive', [ 'fa_storage_key', 'fa_id', 'fa_name' ],
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array_merge( [ 'fa_id > ' . $dbw->addQuotes( $lastId ) ], $conds ),
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__METHOD__,
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[ 'LIMIT' => $batchSize, 'ORDER BY' => 'fa_id' ]
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);
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foreach ( $res as $row ) {
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$lastId = $row->fa_id;
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$sha1Key = $row->fa_storage_key;
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if ( !strlen( $sha1Key ) ) {
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$this->error( "Image SHA-1 not set for file #{$row->fa_id} (deleted)." );
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continue;
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}
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$sha1 = substr( $sha1Key, 0, strpos( $sha1Key, '.' ) );
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if ( $oldLayout === 'sha1' ) {
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$spath = "{$origBase}/{$sha1[0]}/{$sha1[1]}/{$sha1[2]}/{$sha1}";
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} else {
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$spath = $be->getContainerStoragePath( "{$repo->getName()}-deleted" ) .
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'/' . $repo->getDeletedHashPath( $sha1Key ) . $sha1Key;
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}
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if ( $newLayout === 'sha1' ) {
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$dpath = "{$origBase}/{$sha1[0]}/{$sha1[1]}/{$sha1[2]}/{$sha1}";
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} else {
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$dpath = $be->getContainerStoragePath( "{$repo->getName()}-deleted" ) .
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'/' . $repo->getDeletedHashPath( $sha1Key ) . $sha1Key;
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}
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$status = $be->prepare( [
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'dir' => dirname( $dpath ), 'bypassReadOnly' => 1 ] );
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if ( !$status->isOK() ) {
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$this->error( print_r( $status->getErrors(), true ) );
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}
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$batch[] = [ 'op' => 'copy', 'src' => $spath, 'dst' => $dpath,
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'overwriteSame' => true, 'img' => "(ID {$row->fa_id}) {$row->fa_name}" ];
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if ( count( $batch ) >= $batchSize ) {
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$this->runBatch( $batch, $be );
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$batch = [];
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}
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}
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} while ( $res->numRows() );
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if ( count( $batch ) ) {
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$this->runBatch( $batch, $be );
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}
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$this->output( "Done (started $startTime)\n" );
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}
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protected function getRepo() {
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return MediaWikiServices::getInstance()->getRepoGroup()->getLocalRepo();
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}
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/**
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* @param array[] $ops
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* @param FileBackend $be
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*/
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protected function runBatch( array $ops, FileBackend $be ) {
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$this->output( "Migrating file batch:\n" );
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foreach ( $ops as $op ) {
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$this->output( "\"{$op['img']}\" (dest: {$op['dst']})\n" );
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}
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$status = $be->doOperations( $ops, [ 'bypassReadOnly' => 1 ] );
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if ( !$status->isOK() ) {
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$this->output( print_r( $status->getErrors(), true ) );
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}
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$this->output( "Batch done\n\n" );
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}
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}
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$maintClass = MigrateFileRepoLayout::class;
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require_once RUN_MAINTENANCE_IF_MAIN;
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