popsu-d7/sites/all/modules/demo/demo.install

<?php
// $Id: demo.install,v 1.9 2010/09/04 02:42:26 sun Exp $

/**
 * @file
 * Demonstration site module installation functions.
 */

/**
 * Implements hook_uninstall().
 */
function demo_uninstall() {
  variable_del('demo_reset_last');
}

/**
 * Move existing dumps to new directory without site name sub-folder.
 */
function demo_update_6100() {
  // If file_directory_path() contains the site name already or is
  // 'sites/all/files', create new folder without site name and move existing
  // files to the new location.
  $new_path = variable_get('demo_dump_path', file_directory_path() . '/demo');
  if (strpos($new_path, conf_path()) !== FALSE || strpos($new_path, '/all/') !== FALSE) {
    $old_path = $new_path . str_replace('sites', '', conf_path());
    if ($new_path != $old_path && file_check_directory($old_path)) {
      // Fetch list of available files.
      $files = file_scan_directory($old_path, '/\.(info|sql)$/');
      foreach ($files as $file) {
        rename($file->filename, $new_path . '/' . $file->basename);
      }
      // Ignore any warnings from rmdir() about remaining files in the old
      // directory (they will NOT be deleted).
      @rmdir($old_path);
    }
  }
}

/**
 * @todo Remove file_directory_path() from demo_dump_path variable.
 */