class Spring::Commands::Rake

def env(args)
  # This is an adaption of the matching that Rake itself does.
  # See: https://github.com/jimweirich/rake/blob/3754a7639b3f42c2347857a0878beb3523542aee/lib/rake/application.rb#L691-L692
  if env = args.grep(/^(RAILS|RACK)_ENV=(.*)$/m).last
    return env.split("=").last
  end
  self.class.environment_matchers.each do |matcher, environment|
    return environment if matcher === (args.first || :default)
  end
  nil
end