From 3ab1cfc325811b862cb81d0360bf83216cd6f235 Mon Sep 17 00:00:00 2001
From: Josef Šimánek <josef.simanek@gmail.com>
Date: Sun, 14 Jun 2020 00:26:23 +0200
Subject: Add Gem.disable_system_update_message to disable gem update --system
 if needed.

---
 lib/rubygems.rb | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'lib/rubygems.rb')

diff --git a/lib/rubygems.rb b/lib/rubygems.rb
index c018492150..d24c07d55a 100644
--- a/lib/rubygems.rb
+++ b/lib/rubygems.rb
@@ -1187,6 +1187,12 @@ An Array (#{env.inspect}) was passed in from #{caller[3]}
   # other.
   class << self
 
+    ##
+    # RubyGems distributors (like operating system package managers) can
+    # disable RubyGems update by setting this to error message printed to
+    # end-users on gem update --system instead of actual update.
+    attr_accessor :disable_system_update_message
+
     ##
     # Hash of loaded Gem::Specification keyed by name
 
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