Experimental update.php for DRUPAL 6. This is not integrated into any drush...

Experimental update.php for DRUPAL 6. This is not integrated into any drush commands or the hosting front end yet

platform/update.php

+<?php
+// $Id$
+
+require_once(dirname(__FILE__) . '/../provision.inc');
+if ($argv[1]) {
+  // Fake the necessary HTTP headers that Drupal needs:
+  provision_external_init($argv[1], FALSE);
+
+}
+else {
+  provision_set_error(PROVISION_FRAMEWORK_ERROR);
+  provision_log("error", "USAGE: update.php url\n");
+  provision_output($url, $data);
+}
+
+/**
+ * @file
+ *   Update.php for provisioned sites.
+ *   This file is a derivative of the standard drupal update.php,
+ *   which has been modified to allow being run from the command
+ *   line.
+ */
+
+ob_start();
+$_REQUEST['op'] = 'info';
+include_once("update.php");
+ob_end_clean();
+
+function update_main() {
+  include_once './includes/install.inc';
+  include_once './includes/batch.inc';
+  drupal_load_updates();
+
+  update_fix_d6_requirements();
+  update_fix_compatibility();
+
+  $start = array();
+  $modules = drupal_get_installed_schema_version(NULL, FALSE, TRUE);
+  foreach ($modules as $module => $schema_version) {
+    $updates = drupal_get_schema_versions($module);
+    // Skip incompatible module updates completely, otherwise test schema versions.
+    if (!update_check_incompatibility($module) && $updates !== FALSE && $schema_version >= 0) {
+      // module_invoke returns NULL for nonexisting hooks, so if no updates
+      // are removed, it will == 0.
+      $last_removed = module_invoke($module, 'update_last_removed');
+      if ($schema_version < $last_removed) {
+        provision_set_error(PROVISION_INSTALL_ERROR);
+        provision_log('error', pt( $module .' module can not be updated. Its schema version is '. $schema_version .'. Updates up to and including '. $last_removed .' have been removed in this release. In order to update '. $module .' module, you will first <a href="http://drupal.org/upgrade">need to upgrade</a> to the last version in which these updates were available.'));
+        continue;
+      }
+
+      $updates = drupal_map_assoc($updates);
+      $updates[] = 'No updates available';
+      $default = $schema_version;
+      foreach (array_keys($updates) as $update) {
+        if ($update > $schema_version) {
+          $default = $update;
+          break;
+        }
+      }
+      $start[$module] = $default;
+    }
+  }
+  if (sizeof($start)) {
+    $operations = array();
+    foreach ($start as $module => $version) {
+      drupal_set_installed_schema_version($module, $version - 1);
+      $updates = drupal_get_schema_versions($module);
+      $max_version = max($updates);
+      if ($version <= $max_version) {
+        provision_log('notice', pt('Updating module @module from schema version @start to schema version @max', array('@module' => $module, '@start' => $version - 1, '@max' => $max_version)));
+        foreach ($updates as $update) {
+          if ($update >= $version) {
+            $operations[] = array('_update_do_one', array($module, $update));
+          }
+        }
+      }
+      else {
+        provision_log('notice', pt('No updates for module @module', array('@module' => $module)));
+      }
+    }
+    $batch = array(
+      'operations' => $operations,
+      'title' => 'Updating',
+      'init_message' => 'Starting updates',
+      'error_message' => 'An unrecoverable error has occurred. You can find the error message below. It is advised to copy it to the clipboard for reference.',
+      'finished' => 'update_finished',
+    );
+    batch_set($batch);
+    $batch =& batch_get();
+    $batch['progressive'] = FALSE;
+    batch_process();
+  }
+  else {
+    provision_log('notice', pt('No outstanding updates'));
+  }
+}
+
+/**
+ * A simplified version of the batch_do_one function from update.php
+ * 
+ * This does not mess with sessions and the like, as it will be used
+ * from the command line
+ */
+function _update_do_one($module, $number, &$context) {
+  // If updates for this module have been aborted
+  // in a previous step, go no further.
+  if (!empty($context['results'][$module]['#abort'])) {
+    return;
+  }
+
+  $function = $module .'_update_'. $number;
+  if (function_exists($function)) {
+    $ret = $function($context['sandbox']);
+  }
+  foreach ($ret as $info) {
+    if (!$info['success']) {
+      provision_set_error('PROVISION_DB_ERROR');
+    }
+    provision_log( ($info['success']) ? 'success' : 'error', $info['query']);
+  }
+
+  if (isset($ret['#finished'])) {
+    $context['finished'] = $ret['#finished'];
+    unset($ret['#finished']);
+  }
+
+  if ($context['finished'] == 1 && empty($context['results'][$module]['#abort'])) {
+    drupal_set_installed_schema_version($module, $number);
+  }
+
+}
+
+update_main($url, $data);
+provision_output($url, $data);