Merge IRB 1.2.6

lib/irb/cmd/info.rb

@@ -0,0 +1,24 @@
+# frozen_string_literal: false
+
+require_relative "nop"
+
+# :stopdoc:
+module IRB
+  module ExtendCommand
+    class Info < Nop
+      def execute
+        Class.new {
+          def inspect
+            str  = "Ruby version: #{RUBY_VERSION}\n"
+            str += "IRB version: #{IRB.version}\n"
+            str += "InputMethod: #{IRB.CurrentContext.io.inspect}\n"
+            str += ".irbrc path: #{IRB.rc_file}\n" if File.exist?(IRB.rc_file)
+            str
+          end
+          alias_method :to_s, :inspect
+        }.new
+      end
+    end
+  end
+end
+# :startdoc: