basic.rb in rubygems-update-3.1.0

- old
+ new

@@ -449,17 +449,26 @@
         end
       end
 
       def ask_filtered(statement, color, options)
         answer_set = options[:limited_to]
+        case_insensitive = options.fetch(:case_insensitive, false)
         correct_answer = nil
         until correct_answer
           answers = answer_set.join(", ")
           answer = ask_simply("#{statement} [#{answers}]", color, options)
-          correct_answer = answer_set.include?(answer) ? answer : nil
+          correct_answer = answer_match(answer_set, answer, case_insensitive)
           say("Your response must be one of: [#{answers}]. Please try again.") unless correct_answer
         end
         correct_answer
+      end
+
+      def answer_match(possibilities, answer, case_insensitive)
+        if case_insensitive
+          possibilities.detect{ |possibility| possibility.downcase == answer.downcase }
+        else
+          possibilities.detect{ |possibility| possibility == answer }
+        end
       end
 
       def merge(destination, content) #:nodoc:
         require "tempfile"
         Tempfile.open([File.basename(destination), File.extname(destination)], File.dirname(destination)) do |temp|