https://git.ruby-lang.org/ruby.git/commit/?id=2b5d4fe28d

From 2b5d4fe28dc548f782be8d71de8b472000e6b38e Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Wed, 12 Oct 2022 11:52:46 +0900
Subject: sync_default_gems: Add rdoc-ref command to test

---
 tool/sync_default_gems.rb | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tool/sync_default_gems.rb b/tool/sync_default_gems.rb
index 3aabd3739c..8b7fae2db3 100755
--- a/tool/sync_default_gems.rb
+++ b/tool/sync_default_gems.rb
@@ -642,6 +642,17 @@ when "--message-filter" https://github.com/ruby/ruby/blob/trunk/tool/sync_default_gems.rb#L642
   abort unless ARGV.size == 2
   message_filter(*ARGV)
   exit
+when "rdoc-ref"
+  ARGV.shift
+  pattern = ARGV.empty? ? %w[*.c *.rb *.rdoc] : ARGV
+  result = pipe_readlines(%W"git grep -z -l -F [https://docs.ruby-lang.org/en/master/ --" + pattern)
+  result.inject(false) do |changed, file|
+    if replace_rdoc_ref(file)
+      puts "replaced rdoc-ref in #{file}"
+      changed = true
+    end
+    changed
+  end
 when nil, "-h", "--help"
     puts <<-HELP
 \e[1mSync with upstream code of default libraries\e[0m
-- 
cgit v1.2.1


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