From 1adc7aa630d43e04cf5e75bbbbcf48b72a6e6c45 Mon Sep 17 00:00:00 2001
From: Hiroshi SHIBATA <hsbt@ruby-lang.org>
Date: Tue, 8 Mar 2022 21:08:46 +0900
Subject: [PATCH] Added release option to sync only released version of the
 default gems

---
 tool/sync_default_gems.rb | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/tool/sync_default_gems.rb b/tool/sync_default_gems.rb
index ca5283d2c3..fe7510c1aa 100755
--- a/tool/sync_default_gems.rb
+++ b/tool/sync_default_gems.rb
@@ -530,7 +530,7 @@ def sync_lib(repo, upstream = nil)
   cp_r("#{upstream}/#{repo}.gemspec", "#{gemspec}")
 end
 
-def update_default_gems(gem)
+def update_default_gems(gem, release: false)
 
   author, repository = REPOSITORIES[gem.to_sym].split('/')
 
@@ -552,9 +552,15 @@ def update_default_gems(gem)
     end
     `git checkout ruby-core`
     `git rebase ruby-core/master`
-    `git checkout master`
-    `git fetch origin master`
-    `git rebase origin/master`
+    `git fetch origin --tags`
+
+    if release
+      last_release = `git tag`.chomp.split.last
+      `git checkout #{last_release}`
+    else
+      `git checkout master`
+      `git rebase origin/master`
+    end
   end
 end
 
@@ -566,7 +572,14 @@ when "up"
     REPOSITORIES.keys.each{|gem| update_default_gems(gem.to_s)}
   end
 when "all"
-  REPOSITORIES.keys.each{|gem| sync_default_gems(gem.to_s)}
+  if ARGV[1] == "release"
+    REPOSITORIES.keys.each do |gem|
+      update_default_gems(gem.to_s, release: true)
+      sync_default_gems(gem.to_s)
+    end
+  else
+    REPOSITORIES.keys.each{|gem| sync_default_gems(gem.to_s)}
+  end
 when "list"
   ARGV.shift
   pattern = Regexp.new(ARGV.join('|'))