From 8a3857e61bee44e9cc1a22ae9ca2a6209fa72f77 Mon Sep 17 00:00:00 2001
From: Stan Hu <stanhu@gmail.com>
Date: Mon, 17 Jul 2023 09:58:48 -0700
Subject: [PATCH] Use a temporary directory for cooking recipe

This is an attempt to to reduce filename lengths since Windows can hit
a limit of 250 characters (CMAKE_OBJECT_PATH_MAX).
---
 ext/re2/extconf.rb | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/ext/re2/extconf.rb b/ext/re2/extconf.rb
index 4e8c7e9..2438fa9 100644
--- a/ext/re2/extconf.rb
+++ b/ext/re2/extconf.rb
@@ -158,6 +158,20 @@ def delete_cmake_generator_option!(options)
   indices.reverse_each { |index| options.delete_at(index) }
 end
 
+def with_temp_dir
+  cwd = Dir.pwd
+
+  Dir.mktmpdir do |temp_dir|
+    Dir.chdir(temp_dir)
+
+    yield
+
+    Dir.chdir(cwd)
+  end
+ensure
+  Dir.chdir(cwd)
+end
+
 #
 #  main
 #
@@ -307,7 +321,9 @@ def process_recipe(name, version)
         end
       end
 
-      recipe.cook
+      # Use a temporary base directory to reduce filename lengths since
+      # Windows can hit a limit of 250 characters (CMAKE_OBJECT_PATH_MAX).
+      with_temp_dir { recipe.cook }
 
       FileUtils.touch(checkpoint)
     end