https://git.ruby-lang.org/ruby.git/commit/?id=7a571103f2

From 7a571103f231e8f9e7200aa40b9a56c3f34a2e80 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Josef=20=C5=A0im=C3=A1nek?= <josef.simanek@g...>
Date: Mon, 15 Jun 2020 00:28:25 +0200
Subject: Exit with non-zero status on disabled gem system update.


diff --git a/lib/rubygems/commands/update_command.rb b/lib/rubygems/commands/update_command.rb
index 052d9f9..612667d 100644
--- a/lib/rubygems/commands/update_command.rb
+++ b/lib/rubygems/commands/update_command.rb
@@ -264,7 +264,7 @@ command to remove old versions. https://github.com/ruby/ruby/blob/trunk/lib/rubygems/commands/update_command.rb#L264
   def update_rubygems
     if Gem.disable_system_update_message
       alert_error Gem.disable_system_update_message
-      return
+      terminate_interaction 1
     end
 
     check_update_arguments
diff --git a/test/rubygems/test_gem_commands_update_command.rb b/test/rubygems/test_gem_commands_update_command.rb
index 3b823a0..bd06c84 100644
--- a/test/rubygems/test_gem_commands_update_command.rb
+++ b/test/rubygems/test_gem_commands_update_command.rb
@@ -245,8 +245,10 @@ class TestGemCommandsUpdateCommand < Gem::TestCase https://github.com/ruby/ruby/blob/trunk/test/rubygems/test_gem_commands_update_command.rb#L245
     @cmd.options[:args] = []
     @cmd.options[:system] = true
 
-    use_ui @ui do
-      @cmd.execute
+    assert_raises Gem::MockGemUi::TermError do
+      use_ui @ui do
+        @cmd.execute
+      end
     end
 
     assert_empty @ui.output
-- 
cgit v0.10.2


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