hook_libraries_info.php

<?php
/**
 * Implements hook_libraries_info().
 */
function module_name_libraries_info() {
  $libraries['jquery_easy_confirm_dialog'] = array(
    'name' => 'Jquery easy confirm dialog plugin',
    'vendor url' => 'http://www.projectshadowlight.org/jquery-easy-confirm-dialog/',
    'download url' => 'http://github.com/wiggin/jQuery-Easy-Confirm-Dialog-plugin/raw/master/jquery.easy-confirm-dialog.js',
    'version arguments' => array(
      'file' => 'jquery.easy-confirm-dialog.js',
      'pattern' => '/jQuery Easy Confirm Dialog plugin (\d+)/',
      'lines' => 5,
    ),
    'files' => array(
      'js' => array('jquery.easy-confirm-dialog.js')
    ),
    // Global default properties applying to all versions.
    'variants' => array(
      'src' => array(
        'title' => 'Source',
        'files' => array(
          'js' => array('jquery.easy-confirm-dialog.js' => array()),
        ),
      ),
    ),
  );

  return $libraries;
}