From d59359f197372be658139488929a80098e65f41c Mon Sep 17 00:00:00 2001
From: Jenn Magder <magder@google.com>
Date: Mon, 1 Feb 2021 18:13:38 -0800
Subject: [PATCH] Adopt subshard naming convention in build_tests (#75179)

---
 dev/bots/test.dart | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/dev/bots/test.dart b/dev/bots/test.dart
index a5a8f430cf3..b0892b8bc3a 100644
--- a/dev/bots/test.dart
+++ b/dev/bots/test.dart
@@ -435,7 +435,10 @@ Future<void> _runBuildTests() async {
       ],
   ]..shuffle(math.Random(0));
 
-  await _selectIndexedSubshard(tests, kBuildTestShardCount);
+  if (!await _runShardRunnerIndexOfTotalSubshard(tests)) {
+    // TODO(jmagman): Remove fallback once LUCI configs are migrated to d+_d+ subshard format.
+    await _selectIndexedSubshard(tests, kBuildTestShardCount);
+  }
 }
 
 Future<void> _runExampleProjectBuildTests(FileSystemEntity exampleDirectory) async {