Track RubyGems master(3.3.0.dev) branch at 55634a8af18a52df86c4275d70fa1179118bcc20

Merged: https://github.com/ruby/ruby/pull/4021

lib/rubygems/unknown_command_spell_checker.rb

@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+class Gem::UnknownCommandSpellChecker
+  attr_reader :error
+
+  def initialize(error)
+    @error = error
+  end
+
+  def corrections
+    @corrections ||=
+      spell_checker.correct(error.unknown_command).map(&:inspect)
+  end
+
+  private
+
+  def spell_checker
+    dictionary = Gem::CommandManager.instance.command_names
+    DidYouMean::SpellChecker.new(dictionary: dictionary)
+  end
+end