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<?php
/**
* Copy all files in FileRepo to an originals container using SHA1 paths.
*
* 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
*/
use MediaWiki\FileRepo\File\File;
use MediaWiki\FileRepo\File\LocalFile;
use MediaWiki\FileRepo\FileBackendDBRepoWrapper;
use MediaWiki\FileRepo\LocalRepo;
use MediaWiki\Maintenance\Maintenance;
use Wikimedia\FileBackend\FileBackend;
// @codeCoverageIgnoreStart
require_once __DIR__ . '/Maintenance.php';
// @codeCoverageIgnoreEnd
/**
* Copy all files in FileRepo to an originals container using SHA1 paths.
*
* This script should be run while the repo is still set to the old layout.
*
* @ingroup Maintenance
*/
class MigrateFileRepoLayout extends Maintenance {
public function __construct() {
parent::__construct();
$this->addDescription( 'Copy files in repo to a different layout.' );
$this->addOption( 'oldlayout', "Old layout; one of 'name' or 'sha1'", true, true );
$this->addOption( 'newlayout', "New layout; one of 'name' or 'sha1'", true, true );
$this->addOption( 'since', "Copy only files from after this timestamp", false, true );
$this->setBatchSize( 50 );
}
public function execute() {
$oldLayout = $this->getOption( 'oldlayout' );
if ( !in_array( $oldLayout, [ 'name', 'sha1' ] ) ) {
$this->fatalError( "Invalid old layout." );
}
$newLayout = $this->getOption( 'newlayout' );
if ( !in_array( $newLayout, [ 'name', 'sha1' ] ) ) {
$this->fatalError( "Invalid new layout." );
}
$since = $this->getOption( 'since' );
$repo = $this->getRepo();
$be = $repo->getBackend();
if ( $be instanceof FileBackendDBRepoWrapper ) {
// avoid path translations for this script
$be = $be->getInternalBackend();
}
$dbw = $repo->getPrimaryDB();
$origBase = $be->getContainerStoragePath( "{$repo->getName()}-original" );
$startTime = wfTimestampNow();
// Do current and archived versions...
$conds = [];
if ( $since ) {
$conds[] = $dbw->expr( 'img_timestamp', '>=', $dbw->timestamp( $since ) );
}
$batchSize = $this->getBatchSize();
$batch = [];
$lastName = '';
do {
$res = $dbw->newSelectQueryBuilder()
->select( [ 'img_name', 'img_sha1' ] )
->from( 'image' )
->where( $dbw->expr( 'img_name', '>', $lastName ) )
->andWhere( $conds )
->orderBy( 'img_name' )
->limit( $batchSize )
->caller( __METHOD__ )->fetchResultSet();
foreach ( $res as $row ) {
$lastName = $row->img_name;
/** @var LocalFile $file */
$file = $repo->newFile( $row->img_name );
// Check in case SHA1 rows are not populated for some files
$sha1 = $row->img_sha1 !== '' ? $row->img_sha1 : $file->getSha1();
if ( $sha1 === '' ) {
$this->error( "Image SHA-1 not known for {$row->img_name}." );
} else {
if ( $oldLayout === 'sha1' ) {
$spath = "{$origBase}/{$sha1[0]}/{$sha1[1]}/{$sha1[2]}/{$sha1}";
} else {
$spath = $file->getPath();
}
if ( $newLayout === 'sha1' ) {
$dpath = "{$origBase}/{$sha1[0]}/{$sha1[1]}/{$sha1[2]}/{$sha1}";
} else {
$dpath = $file->getPath();
}
$status = $be->prepare( [
'dir' => dirname( $dpath ), 'bypassReadOnly' => true ] );
if ( !$status->isOK() ) {
$this->error( $status );
}
$batch[] = [ 'op' => 'copy', 'overwrite' => true,
'src' => $spath, 'dst' => $dpath, 'img' => $row->img_name ];
}
foreach ( $file->getHistory() as $ofile ) {
$sha1 = $ofile->getSha1();
if ( $sha1 === '' ) {
$this->error( "Image SHA-1 not set for {$ofile->getArchiveName()}." );
continue;
}
if ( $oldLayout === 'sha1' ) {
$spath = "{$origBase}/{$sha1[0]}/{$sha1[1]}/{$sha1[2]}/{$sha1}";
} elseif ( $ofile->isDeleted( File::DELETED_FILE ) ) {
$spath = $be->getContainerStoragePath( "{$repo->getName()}-deleted" ) .
'/' . $repo->getDeletedHashPath( $sha1 ) .
$sha1 . '.' . $ofile->getExtension();
} else {
$spath = $ofile->getPath();
}
if ( $newLayout === 'sha1' ) {
$dpath = "{$origBase}/{$sha1[0]}/{$sha1[1]}/{$sha1[2]}/{$sha1}";
} else {
$dpath = $ofile->getPath();
}
$status = $be->prepare( [
'dir' => dirname( $dpath ), 'bypassReadOnly' => true ] );
if ( !$status->isOK() ) {
$this->error( $status );
}
$batch[] = [ 'op' => 'copy', 'overwrite' => true,
'src' => $spath, 'dst' => $dpath, 'img' => $ofile->getArchiveName() ];
}
if ( count( $batch ) >= $batchSize ) {
$this->runBatch( $batch, $be );
$batch = [];
}
}
} while ( $res->numRows() );
if ( count( $batch ) ) {
$this->runBatch( $batch, $be );
}
// Do deleted versions...
$conds = [];
if ( $since ) {
$conds[] = $dbw->expr( 'fa_deleted_timestamp', '>=', $dbw->timestamp( $since ) );
}
$batch = [];
$lastId = 0;
do {
$res = $dbw->newSelectQueryBuilder()
->select( [ 'fa_storage_key', 'fa_id', 'fa_name' ] )
->from( 'filearchive' )
->where( $dbw->expr( 'fa_id', '>', $lastId ) )
->andWhere( $conds )
->orderBy( 'fa_id' )
->limit( $batchSize )
->caller( __METHOD__ )->fetchResultSet();
foreach ( $res as $row ) {
$lastId = $row->fa_id;
$sha1Key = $row->fa_storage_key;
if ( $sha1Key === '' ) {
$this->error( "Image SHA-1 not set for file #{$row->fa_id} (deleted)." );
continue;
}
$sha1 = substr( $sha1Key, 0, strpos( $sha1Key, '.' ) );
if ( $oldLayout === 'sha1' ) {
$spath = "{$origBase}/{$sha1[0]}/{$sha1[1]}/{$sha1[2]}/{$sha1}";
} else {
$spath = $be->getContainerStoragePath( "{$repo->getName()}-deleted" ) .
'/' . $repo->getDeletedHashPath( $sha1Key ) . $sha1Key;
}
if ( $newLayout === 'sha1' ) {
$dpath = "{$origBase}/{$sha1[0]}/{$sha1[1]}/{$sha1[2]}/{$sha1}";
} else {
$dpath = $be->getContainerStoragePath( "{$repo->getName()}-deleted" ) .
'/' . $repo->getDeletedHashPath( $sha1Key ) . $sha1Key;
}
$status = $be->prepare( [
'dir' => dirname( $dpath ), 'bypassReadOnly' => true ] );
if ( !$status->isOK() ) {
$this->error( $status );
}
$batch[] = [ 'op' => 'copy', 'src' => $spath, 'dst' => $dpath,
'overwriteSame' => true, 'img' => "(ID {$row->fa_id}) {$row->fa_name}" ];
if ( count( $batch ) >= $batchSize ) {
$this->runBatch( $batch, $be );
$batch = [];
}
}
} while ( $res->numRows() );
if ( count( $batch ) ) {
$this->runBatch( $batch, $be );
}
$this->output( "Done (started $startTime)\n" );
}
protected function getRepo(): LocalRepo {
return $this->getServiceContainer()->getRepoGroup()->getLocalRepo();
}
/**
* @param array[] $ops
* @param FileBackend $be
*/
protected function runBatch( array $ops, FileBackend $be ) {
$this->output( "Migrating file batch:\n" );
foreach ( $ops as $op ) {
$this->output( "\"{$op['img']}\" (dest: {$op['dst']})\n" );
}
$status = $be->doOperations( $ops, [ 'bypassReadOnly' => true ] );
if ( !$status->isOK() ) {
$this->error( $status );
}
$this->output( "Batch done\n\n" );
}
}
// @codeCoverageIgnoreStart
$maintClass = MigrateFileRepoLayout::class;
require_once RUN_MAINTENANCE_IF_MAIN;
// @codeCoverageIgnoreEnd