Can't launch irb in ruby-2.0.0-p647 because irb parses ARGV

[josephks]

When I try to invoke irb from within byebug inside my cucumber scenario I can't launch irb because irb tries to parse ARGV which contains cucumber's command line options. This wasn't a problem for me in ruby 1.9.3 with debugger.

Modifying the execute method in lib/byebug/commands/irb.rb like this solves my problem:

    def execute
      unless processor.interface.is_a?(LocalInterface)
        return errmsg(pr('base.errors.only_local'))
      end
      saved_argv = ARGV.dup
      ARGV.clear
      IRB.start(__FILE__)
      ARGV.concat(saved_argv)
    end

[deivid-rodriguez]

Could you post some steps to reproduce this?

[josephks]

• Put debugger in your code
• Run cucumber -b -r features
• When you enter the debugger type irb
• Watch irb blow up because it can't parse "-b -r features'

[deivid-rodriguez]

Can you post a sample app? I don't want to deal with installing and setting up cucumber. You can also create a PR with a test case.

[josephks]

See https://github.com/josephks/bug_demo

14:29@jshraibman ~/work/bug_demo/demo_app master $ bundle exec cucumber -b -r features features/byebug197.feature
Feature: Running the debugger


[1, 6] in /Users/jshraibman/work/bug_demo/demo_app/features/step_definitions/steps.rb
   1: Given /^I run the debugger$/ do
   2:   require 'byebug'
   3:   # Now type 'irb'
   4:   debugger
=> 5:   nil
   6: end
(byebug) ARGV
["-b", "-r", "features", "features/byebug197.feature"]
(byebug) irb
*** Unrecognized switch: -b

[deivid-rodriguez]

Thanks @josephks, I think you patch makes perfect sense. Could you create a PR?