class Bundler::CLI::Config::Base

def validate_scope!
  @explicit_scope = true
  scopes = %w[global local].select {|s| options[s] }
  case scopes.size
  when 0
    @scope = inside_app? ? "local" : "global"
    @explicit_scope = false
  when 1
    @scope = scopes.first
  else
    raise InvalidOption,
      "The options #{scopes.join " and "} were specified. Please only use one of the switches at a time."
  end
end