1 files changed, 108 insertions, 0 deletions
diff --git a/www/wiki/maintenance/populateFilearchiveSha1.php b/www/wiki/maintenance/populateFilearchiveSha1.php
new file mode 100644
index 00000000..ef57640b
--- /dev/null
+++ b/www/wiki/maintenance/populateFilearchiveSha1.php
@@ -0,0 +1,108 @@
+<?php
+/**
+ * Optional upgrade script to populate the fa_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
+ *
+ * @file
+ * @ingroup Maintenance
+ */
+
+require_once __DIR__ . '/Maintenance.php';
+
+/**
+ * Maintenance script to populate the fa_sha1 field.
+ *
+ * @ingroup Maintenance
+ * @since 1.21
+ */
+class PopulateFilearchiveSha1 extends LoggedUpdateMaintenance {
+	public function __construct() {
+		parent::__construct();
+		$this->addDescription( 'Populate the fa_sha1 field from fa_storage_key' );
+	}
+
+	protected function getUpdateKey() {
+		return 'populate fa_sha1';
+	}
+
+	protected function updateSkippedMessage() {
+		return 'fa_sha1 column of filearchive table already populated.';
+	}
+
+	public function doDBUpdates() {
+		$startTime = microtime( true );
+		$dbw = $this->getDB( DB_MASTER );
+		$table = 'filearchive';
+		$conds = [ 'fa_sha1' => '', 'fa_storage_key IS NOT NULL' ];
+
+		if ( !$dbw->fieldExists( $table, 'fa_sha1', __METHOD__ ) ) {
+			$this->output( "fa_sha1 column does not exist\n\n", true );
+
+			return false;
+		}
+
+		$this->output( "Populating fa_sha1 field from fa_storage_key\n" );
+		$endId = $dbw->selectField( $table, 'MAX(fa_id)', '', __METHOD__ );
+
+		$batchSize = $this->getBatchSize();
+		$done = 0;
+
+		do {
+			$res = $dbw->select(
+				$table,
+				[ 'fa_id', 'fa_storage_key' ],
+				$conds,
+				__METHOD__,
+				[ 'LIMIT' => $batchSize ]
+			);
+
+			$i = 0;
+			foreach ( $res as $row ) {
+				if ( $row->fa_storage_key == '' ) {
+					// Revision was missing pre-deletion
+					continue;
+				}
+				$sha1 = LocalRepo::getHashFromKey( $row->fa_storage_key );
+				$dbw->update( $table,
+					[ 'fa_sha1' => $sha1 ],
+					[ 'fa_id' => $row->fa_id ],
+					__METHOD__
+				);
+				$lastId = $row->fa_id;
+				$i++;
+			}
+
+			$done += $i;
+			if ( $i !== $batchSize ) {
+				break;
+			}
+
+			// print status and let replica DBs catch up
+			$this->output( sprintf(
+				"id %d done (up to %d), %5.3f%%  \r", $lastId, $endId, $lastId / $endId * 100 ) );
+			wfWaitForSlaves();
+		} while ( true );
+
+		$processingTime = microtime( true ) - $startTime;
+		$this->output( sprintf( "\nDone %d files in %.1f seconds\n", $done, $processingTime ) );
+
+		return true; // we only updated *some* files, don't log
+	}
+}
+
+$maintClass = PopulateFilearchiveSha1::class;
+require_once RUN_MAINTENANCE_IF_MAIN;