class Bundler::CLI::Console

def get_constant(name)
  const_name = {
    'pry'  => :Pry,
    'ripl' => :Ripl,
    'irb'  => :IRB,
  }[name]
  Object.const_get(const_name)
rescue NameError
  Bundler.ui.error "Could not find constant #{const_name}"
  exit 1
end