class KPM::PluginsManager

def update_plugin_identifier(plugin_key, plugin_name)
  path = Pathname.new(@plugins_dir).join('plugin_identifiers.json')
  backup_path = Pathname.new(path.to_s + ".back")
  identifiers = {}
  begin
    identifiers = File.open(path, 'r') do |f|
      JSON.parse(f.read)
    end
    # Move file in case something happens until we complete the operation
    FileUtils.mv(path, backup_path)
  rescue Errno::ENOENT
  end
  identifiers[plugin_key] = plugin_name
  File.open(path, 'w') do |f|
    f.write(identifiers.to_json)
  end
  # Cleanup backup entry
  FileUtils.rm(backup_path, :force => true)
  identifiers
end