From 99850b1bd8723503b83ac1d06996f3bedf70ef00 Mon Sep 17 00:00:00 2001
From: Randy Stauner <randy.stauner@shopify.com>
Date: Thu, 22 Oct 2026 13:14:07 -0700
Subject: [PATCH] Stop rubocop benchmark from applying configs in parent dirs

The benchmarks error when this repo is checked out underneath
another dir that has a .rubocop.yml that requires rubocop-minitest.
---
 benchmarks/rubocop/benchmark.rb | 33 +++++++++++++++++++--------------
 1 file changed, 19 insertions(+), 14 deletions(-)

diff --git a/benchmarks/rubocop/benchmark.rb b/benchmarks/rubocop/benchmark.rb
index 12f415a0..df907f66 100644
--- a/benchmarks/rubocop/benchmark.rb
+++ b/benchmarks/rubocop/benchmark.rb
@@ -14,20 +14,25 @@
 # integrates with RuboCop
 class RuboCopRunner < RuboCop::Runner
   def initialize
-    super(
-      ::RuboCop::Options.new.parse(
-        [
-          "--stderr",
-          "--force-exclusion",
-          "--format",
-          "RuboCop::Formatter::BaseFormatter",
-          "--raise-cop-error",
-          "--autocorrect",
-        ]
-      ).first,
-      ::RuboCop::ConfigStore.new
-    )
-
+    args = [
+      "--stderr",
+      "--force-exclusion",
+      "--format",
+      "RuboCop::Formatter::BaseFormatter",
+      "--raise-cop-error",
+      "--autocorrect",
+      # Without this, RuboCop searches upwards for a .rubocop.yml (and falls back to
+      # ~/.rubocop.yml), so the amount of work done would depend on where this repo
+      # happens to be checked out. Always benchmark against RuboCop's default config.
+      "--force-default-config",
+    ]
+    options, _paths = ::RuboCop::Options.new.parse(args)
+
+    config_store = ::RuboCop::ConfigStore.new
+    # This is how `RuboCop::CLI` applies the option to the config store
+    config_store.force_default_config! if options[:force_default_config]
+
+    super(options, config_store)
   end
 
   def run(path, contents)