Execute Drupal Updates without User Interaction

execute-drupal-updates.php

<?php
header("Content-Type: text/plain");

define('DRUPAL_ROOT', getcwd());
define('MAINTENANCE_MODE', 'update');

ini_set('display_errors', TRUE);

require_once DRUPAL_ROOT . '/includes/bootstrap.inc';
require_once DRUPAL_ROOT . '/includes/update.inc';
require_once DRUPAL_ROOT . '/includes/common.inc';
require_once DRUPAL_ROOT . '/includes/file.inc';
require_once DRUPAL_ROOT . '/includes/entity.inc';
require_once DRUPAL_ROOT . '/includes/unicode.inc';
update_prepare_d7_bootstrap();

// Temporarily disable configurable timezones so the upgrade process uses the
// site-wide timezone. This prevents a PHP notice during session initlization
// and before offsets have been converted in user_update_7002().
$configurable_timezones = variable_get('configurable_timezones', 1);
$conf['configurable_timezones'] = 0;

// Determine if the current user has access to run update.php.
drupal_bootstrap(DRUPAL_BOOTSTRAP_SESSION);

// Reset configurable timezones.
$conf['configurable_timezones'] = $configurable_timezones;

drupal_bootstrap(DRUPAL_BOOTSTRAP_LANGUAGE);
include_once DRUPAL_ROOT . '/includes/unicode.inc';

update_fix_d7_requirements();

drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
drupal_maintenance_theme();

include_once DRUPAL_ROOT . '/includes/install.inc';
include_once DRUPAL_ROOT . '/includes/batch.inc';
drupal_load_updates();

update_fix_compatibility();

$updates['system'] = array();
foreach (update_get_update_list() as $module => $update) {
    foreach ($update['pending'] as $version => $description) {
        $updates[$module] = $version;
    }
}

$updates = update_resolve_dependencies($updates);

$dependency_map = array();
foreach ($updates as $function => $update) {
    $dependency_map[$function] = !empty($update['reverse_paths']) ? array_keys($update['reverse_paths']) : array();
}

$operations = array();
foreach ($updates as $update) {
    if ($update['allowed']) {
        drupal_set_installed_schema_version($update['module'], $update['number'] - 1);
    }

    $function = $update['module'] . '_update_' . $update['number'];
    $context = array('results' => array(), 'sandbox' => array(), 'sandbox' => array('#finished' => true));
    update_do_one($update['module'], $update['number'], $dependency_map[$function], $context);

    printf("%s: %s\n", $function, $context['message']);
    if (!empty($context['results'][$update['module']][$update['number']]['#abort'])) {
        printf(
            "  - %s\n",
            strip_tags(
                html_entity_decode($context['results'][$update['module']][$update['number']]['#abort']['query'])
            )
        );
    }
}