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<?php
/**
* Optional upgrade script to populate the img_sha1 field
*
* 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
*
* @ingroup Maintenance
*/
require_once( dirname( __FILE__ ) . '/Maintenance.php' );
class PopulateSha1 extends Maintenance {
public function __construct() {
parent::__construct();
$this->mDescription = "Populate the img_sha1 field";
$this->addOption( 'method', "Use 'pipe' to pipe to mysql command line,\n" .
"\t\tdefault uses Database class", false, true );
$this->addOption( 'file', 'Fix for a specific file, without File: namespace prefixed', false, true );
}
public function execute() {
$method = $this->getOption( 'method', 'normal' );
$file = $this->getOption( 'file' );
$t = -microtime( true );
$dbw = wfGetDB( DB_MASTER );
if ( $file ) {
$res = $dbw->selectRow(
'image',
array( 'img_name' ),
array( 'img_name' => $dbw->addQuotes( $file ) ),
__METHOD__
);
if ( !$res ) {
$this->error( "No such file: $file", true );
return;
}
} else {
$res = $dbw->select( 'image', array( 'img_name' ), array( 'img_sha1' => '' ), __METHOD__ );
}
$imageTable = $dbw->tableName( 'image' );
if ( $method == 'pipe' ) {
// @fixme kill this and replace with a second unbuffered DB connection.
global $wgDBuser, $wgDBserver, $wgDBpassword, $wgDBname;
$cmd = 'mysql -u' . wfEscapeShellArg( $wgDBuser ) .
' -h' . wfEscapeShellArg( $wgDBserver ) .
' -p' . wfEscapeShellArg( $wgDBpassword, $wgDBname );
$this->output( "Using pipe method\n" );
$pipe = popen( $cmd, 'w' );
}
$numRows = $res->numRows();
$i = 0;
foreach ( $res as $row ) {
if ( $i % 100 == 0 ) {
$this->output( sprintf( "Done %d of %d, %5.3f%% \r", $i, $numRows, $i / $numRows * 100 ) );
wfWaitForSlaves( 5 );
}
$file = wfLocalFile( $row->img_name );
if ( !$file ) {
continue;
}
$sha1 = File::sha1Base36( $file->getPath() );
if ( strval( $sha1 ) !== '' ) {
$sql = "UPDATE $imageTable SET img_sha1=" . $dbw->addQuotes( $sha1 ) .
" WHERE img_name=" . $dbw->addQuotes( $row->img_name );
if ( $method == 'pipe' ) {
fwrite( $pipe, "$sql;\n" );
} else {
$dbw->query( $sql, __METHOD__ );
}
}
$i++;
}
if ( $method == 'pipe' ) {
fflush( $pipe );
pclose( $pipe );
}
$t += microtime( true );
$this->output( sprintf( "\nDone %d files in %.1f seconds\n", $numRows, $t ) );
}
}
$maintClass = "PopulateSha1";
require_once( RUN_MAINTENANCE_IF_MAIN );
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