sqlite-integration/install.php

<?php
/**
 * @package SQLite Integration
 * @author Kojima Toshiyasu, Justin Adie
 *
 */

/**
 * This function overrides wp_install() in wp-admin/includes/upgrade.php
 */
function wp_install($blog_title, $user_name, $user_email, $public, $deprecated = '', $user_password = '') {
  if (!empty($deprecated))
    _deprecated_argument(__FUNCTION__, '2.6');

  wp_check_mysql_version();
  wp_cache_flush();
  /* changes */
  require_once PDODIR . 'schema.php';
  make_db_sqlite();
  /* changes */
  populate_options();
  populate_roles();
  
  update_option('blogname', $blog_title);
  update_option('admin_email', $user_email);
  update_option('blog_public', $public);
  
  $guessurl = wp_guess_url();
  
  update_option('siteurl', $guessurl);

  if (!$public)
    update_option('default_pingback_flag', 0);
  
  $user_id        = username_exists($user_name);
  $user_password  = trim($user_password);
  $email_password = false;
  if (!$user_id && empty($user_password)) {
    $user_password = wp_generate_password(12, false);
    $message = __('<strong><em>Note that password</em></strong> carefully! It is a <em>random</em> password that was generated just for you.');
    $user_id = wp_create_user($user_name, $user_password, $user_email);
    update_user_option($user_id, 'default_password_nag', true, true);
    $email_password = true;
  } else if (!$user_id) {
    $message = '<em>'.__('Your chosen password.').'</em>';
    $user_id = wp_create_user($user_name, $user_password, $user_email);
  }
  
  $user = new WP_User($user_id);
  $user->set_role('administrator');
  
  wp_install_defaults($user_id);
  
  flush_rewrite_rules();
  
  wp_new_blog_notification($blog_title, $guessurl, $user_id, ($email_password ? $user_password : __('The password you chose during the install.')));
  
  wp_cache_flush();
  
  return array('url' => $guessurl, 'user_id' => $user_id, 'password' => $user_password, 'password_message' => $message);
}
?>