Guards for chef with or

guards.rb

Chef::Log.info(shell_out("#{node['composer']['bin']} show #{package} #{new_resource.version}").exitstatus)

  execute 'Install-composer-for-single-project' do
    cwd new_resource.project_dir
    command "#{node['composer']['bin']} require #{package}:#{new_resource.version} #{dev} #{prefer_dist}"
    environment ({
      'COMPOSER_HOME' => Composer.home_dir(node),
      'COMPOSER_BIN_DIR' => new_resource.bin_dir
    })
    action :run
    not_if do
        shell_out("#{node['composer']['bin']} show #{package} #{new_resource.version}").exitstatus == 0
      end
    user new_resource.user
    group new_resource.group
    umask new_resource.umask
  end

And yes, i needed to change dir for both :)