class KPM::PluginsManager

def write_plugin_identifiers(identifiers)
  path = Pathname.new(@plugins_dir).join('plugin_identifiers.json')
  Dir.mktmpdir do |tmp_dir|
    tmp_path = Pathname.new(tmp_dir).join('plugin_identifiers.json')
    File.open(tmp_path, 'w') do |f|
      f.write(identifiers.to_json)
    end
    FileUtils.mv(tmp_path, path)
  end
end