From 4c03a944f65d5406c2daca06513d936460e8311d Mon Sep 17 00:00:00 2001
From: Guo Xiang Tan <gxtan1990@gmail.com>
Date: Tue, 4 Aug 2020 14:37:32 +0800
Subject: [PATCH] PERF: Move URI regexp in `GroupSearchResults.blurb_for` into
 constant

No need to generate the huge regexp over and over again.
---
 lib/search/grouped_search_results.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/search/grouped_search_results.rb b/lib/search/grouped_search_results.rb
index b6059f0ec87..7f22c16f6f6 100644
--- a/lib/search/grouped_search_results.rb
+++ b/lib/search/grouped_search_results.rb
@@ -85,12 +85,14 @@ class Search
       end
     end
 
+    URI_REGEXP = URI.regexp(%w{http https})
+
     def self.blurb_for(cooked: nil, term: nil, blurb_length: BLURB_LENGTH, scrub: true)
       blurb = nil
       cooked = SearchIndexer.scrub_html_for_search(cooked) if scrub
 
       urls = Set.new
-      cooked.scan(URI.regexp(%w{http https})) { urls << $& }
+      cooked.scan(URI_REGEXP) { urls << $& }
       urls.each do |url|
         begin
           case File.extname(URI(url).path || "")