yui.install

<?php

/**
 * @file
 * The install hooks for this module.
 */

/**
 * Implements hook_requirements().
 */
function yui_requirements($phase) {
  // module_load_include() isn't avaliable during the 'install' $phase.
  require_once dirname(__FILE__) . '/includes/utilities.inc';
  $t = get_t();
  $requirements = array(
    'yui' => array('title' => $t('Yahoo YUI Library')),
  );
  if ($version = yui_get_version()) {
    $requirements['yui']['severity'] = REQUIREMENT_OK;
    $requirements['yui']['value'] = $version;
  }
  else {
    $requirements['yui']['severity'] = REQUIREMENT_ERROR;
    $requirements['yui']['value'] = $t('Not found');
    $requirements['yui']['description'] = $t('The <a href="@yui">Yahoo YUI Library</a> plugin is missing. <a href="@download">Download</a> and extract it into the <code>@directory</code> directory. Rename the extracted folder to <code>@library-folder</code>.', array(
      '@yui' => 'http://yuilibrary.com/',
      '@download' => 'http://yui.zenfs.com/releases/yui3/yui_3.5.1.zip',
      '@directory' => 'sites/all/libraries',
      '@library-folder' => 'yui')
    );
  }
  return $requirements;
}

/**
 * Implements hook_install().
 */
function yui_install() {
  // Set the module's weight high so that it runs after other modules.
  db_query("UPDATE {system} SET weight = 99 WHERE name = 'yui' and type = 'module'");
  $path = variable_get('file_' . file_default_scheme() . '_path', conf_path() . '/files') . '/yui';
  file_prepare_directory($path, FILE_CREATE_DIRECTORY);
}

/**
 * Implements hook_uninstall().
 */
function yui_uninstall() {
  $path = variable_get('file_' . file_default_scheme() . '_path', conf_path() . '/files') . '/yui';
  if (file_prepare_directory($path)) {
    $files = file_scan_directory($path, '/.*/');
    foreach ($files as $file) {
      drupal_unlink($file->filename);
    }
    rmdir($path);
  }
}