From d66d388caad4cbe7ff5926d44398ee394961f644 Mon Sep 17 00:00:00 2001
From: Reedy <reedy@wikimedia.org>
Date: Sat, 9 Feb 2019 23:27:14 +0000
Subject: [PATCH] Make attachLatest.php wait for DB replica lag

Change-Id: I4f402ba772d0b0dda8360eaacf11e318f659efc0
---
 maintenance/attachLatest.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/maintenance/attachLatest.php b/maintenance/attachLatest.php
index 897972c75a..4da09018c4 100644
--- a/maintenance/attachLatest.php
+++ b/maintenance/attachLatest.php
@@ -24,6 +24,8 @@
  * @ingroup Maintenance
  */
 
+use MediaWiki\MediaWikiServices;
+
 require_once __DIR__ . '/Maintenance.php';
 
 /**
@@ -53,6 +55,7 @@ class AttachLatest extends Maintenance {
 			$conds,
 			__METHOD__ );
 
+		$lbFactory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory();
 		$n = 0;
 		foreach ( $result as $row ) {
 			$pageId = intval( $row->page_id );
@@ -78,6 +81,7 @@ class AttachLatest extends Maintenance {
 			if ( $this->hasOption( 'fix' ) ) {
 				$page = WikiPage::factory( $title );
 				$page->updateRevisionOn( $dbw, $revision );
+				$lbFactory->waitForReplication();
 			}
 			$n++;
 		}
-- 
2.20.1