From 1797b20c8e675d92594be2a6b0c2f319f11026b0 Mon Sep 17 00:00:00 2001
From: MusikAnimal <musikanimal@gmail.com>
Date: Mon, 26 Feb 2018 12:38:46 -0500
Subject: [PATCH] Exit populateIpChanges maintenance script if there are no
 revisions

Bug: T188225
Change-Id: Ice1bdae3d16cf365da14c6df0e8d91d2b914f064
---
 maintenance/populateIpChanges.php | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/maintenance/populateIpChanges.php b/maintenance/populateIpChanges.php
index 517475886f..7bb1605cc0 100644
--- a/maintenance/populateIpChanges.php
+++ b/maintenance/populateIpChanges.php
@@ -76,6 +76,12 @@ TEXT
 		$end = $maxRevId > 0
 			? $maxRevId
 			: $dbw->selectField( 'revision', 'MAX(rev_id)', false, __METHOD__ );
+
+		if ( empty( $end ) ) {
+			$this->output( "No revisions found, aborting.\n" );
+			return true;
+		}
+
 		$blockStart = $start;
 		$attempted = 0;
 		$inserted = 0;
-- 
2.20.1