From 562677a6dc8623dfbbfb69ad170accb8444ed7ac Mon Sep 17 00:00:00 2001
From: Ilija Tovilo <ilija.tovilo@me.com>
Date: Mon, 28 Oct 2024 17:18:05 +0100
Subject: [PATCH] [skip ci] Run all branches in nightly on Monday (GH-16625)

See GH-16286. The objective is to identify failed builds in security branches
semi-early. Previously, they would only be run when a fix was backported, which
would almost always result in a red build.
---
 .github/nightly_matrix.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/.github/nightly_matrix.php b/.github/nightly_matrix.php
index 7bbbcc6e55992..d83f198133f76 100644
--- a/.github/nightly_matrix.php
+++ b/.github/nightly_matrix.php
@@ -154,7 +154,10 @@ function get_current_version(): array {
 
 $trigger = $argv[1] ?? 'schedule';
 $attempt = (int) ($argv[2] ?? 1);
-$discard_cache = ($trigger === 'schedule' && $attempt !== 1) || $trigger === 'workflow_dispatch';
+$monday = date('w', time()) === '1';
+$discard_cache = $monday
+    || ($trigger === 'schedule' && $attempt !== 1)
+    || $trigger === 'workflow_dispatch';
 if ($discard_cache) {
     @unlink(get_branch_commit_cache_file_path());
 }