1 files changed, 121 insertions, 0 deletions
diff --git a/maintenance/populateImageSha1.php b/maintenance/populateImageSha1.php
new file mode 100644
index 00000000..4cd2747c
--- /dev/null
+++ b/maintenance/populateImageSha1.php
@@ -0,0 +1,121 @@
+<?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 PopulateImageSha1 extends LoggedUpdateMaintenance {
+	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 );
+	}
+
+	protected function getUpdateKey() {
+		return 'populate img_sha1';
+	}
+
+	protected function updateSkippedMessage() {
+		return 'img_sha1 column of image table already populated.';
+	}
+
+	public function execute() {
+		if ( $this->getOption( 'file' ) ) {
+			$this->doDBUpdates(); // skip update log checks/saves
+		} else {
+			parent::execute();
+		}
+	}
+
+	public function doDBUpdates() {
+		$method = $this->getOption( 'method', 'normal' );
+		$file = $this->getOption( 'file' );
+
+		$t = -microtime( true );
+		$dbw = wfGetDB( DB_MASTER );
+		if ( $file ) {
+			$res = $dbw->select(
+				'image',
+				array( 'img_name' ),
+				array( 'img_name' => $file ),
+				__METHOD__
+			);
+			if ( !$res ) {
+				$this->error( "No such file: $file", true );
+				return false;
+			}
+			$this->output( "Populating img_sha1 field for specified files\n" );
+		} else {
+			$res = $dbw->select( 'image',
+				array( 'img_name' ), array( 'img_sha1' => '' ), __METHOD__ );
+			$this->output( "Populating img_sha1 field\n" );
+		}
+
+		$imageTable = $dbw->tableName( 'image' );
+
+		if ( $method == 'pipe' ) {
+			// @todo 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 % $this->mBatchSize == 0 ) {
+				$this->output( sprintf( "Done %d of %d, %5.3f%%  \r", $i, $numRows, $i / $numRows * 100 ) );
+				wfWaitForSlaves();
+			}
+			$file = wfLocalFile( $row->img_name );
+			if ( !$file ) {
+				continue;
+			}
+			$sha1 = $file->getRepo()->getFileSha1( $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, $t ) );
+
+		return !$file; // we only updated *some* files, don't log
+	}
+}
+
+$maintClass = "PopulateImageSha1";
+require_once( RUN_MAINTENANCE_IF_MAIN );