exceptions.rb in rubygems-update-3.3.0

- old
+ new

@@ -1,16 +1,41 @@
 # frozen_string_literal: true
 
 require_relative 'deprecate'
+require_relative 'unknown_command_spell_checker'
 
 ##
 # Base exception class for RubyGems.  All exception raised by RubyGems are a
 # subclass of this one.
 class Gem::Exception < RuntimeError; end
 
 class Gem::CommandLineError < Gem::Exception; end
 
+class Gem::UnknownCommandError < Gem::Exception
+  attr_reader :unknown_command
+
+  def initialize(unknown_command)
+    self.class.attach_correctable
+
+    @unknown_command = unknown_command
+    super("Unknown command #{unknown_command}")
+  end
+
+  def self.attach_correctable
+    return if defined?(@attached)
+
+    if defined?(DidYouMean::SPELL_CHECKERS) && defined?(DidYouMean::Correctable)
+      DidYouMean::SPELL_CHECKERS['Gem::UnknownCommandError'] =
+        Gem::UnknownCommandSpellChecker
+
+      prepend DidYouMean::Correctable
+    end
+
+    @attached = true
+  end
+end
+
 class Gem::DependencyError < Gem::Exception; end
 
 class Gem::DependencyRemovalException < Gem::Exception; end
 
 ##
@@ -198,10 +223,10 @@
   # Creates a new SystemExitException with the given +exit_code+
 
   def initialize(exit_code)
     @exit_code = exit_code
 
-    super "Exiting RubyGems with exit_code #{exit_code}"
+    super exit_code, "Exiting RubyGems with exit_code #{exit_code}"
   end
 end
 
 ##
 # Raised by Resolver when a dependency requests a gem for which