[gh-315] Prefix migration script moved to UNL-CMS-scripts project

sites/all/modules/unl_multisite/prefix_migration.php

-<?php
-
-// Run as sudo to be able to write to settings.php
-
-if (PHP_SAPI != 'cli') {
-  echo 'This script must be run from the shell!';
-  exit;
-}
-
-chdir(dirname(__FILE__) . '/../../../..');
-define('DRUPAL_ROOT', getcwd());
-
-require_once DRUPAL_ROOT . '/includes/bootstrap.inc';
-drupal_override_server_variables();
-drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
-
-$database = array(
-  'database' => $GLOBALS['databases']['default']['default']['database'],
-  'username' => $GLOBALS['databases']['default']['default']['username'],
-  'password' => $GLOBALS['databases']['default']['default']['password'],
-  'host' => $GLOBALS['databases']['default']['default']['host'],
-  'port' => $GLOBALS['databases']['default']['default']['port'],
-  'driver' => $GLOBALS['databases']['default']['default']['driver'],
-  'prefix' => $GLOBALS['databases']['default']['default']['prefix'],
-);
-
-$query = db_query('SELECT * FROM {unl_sites}');
-$site_prefixes = $query->fetchAllAssoc('db_prefix');
-
-$query = db_query('SHOW TABLES');
-$tables = $query->fetchCol();
-
-// Switch to alternate db connection to run RENAME TABLE commands without the prefix
-$database_noprefix = $database;
-$database_noprefix['prefix'] = '';
-Database::addConnectionInfo('NoPrefix', 'default', $database_noprefix);
-db_set_active('NoPrefix');
-
-
-// Rename the tables
-foreach ($tables as $key => $table) {
-  /**
-   * Important: Assuming no site db_prefix contains the master database prefix: drupal_
-   */
-  $pieces = explode($database['prefix'], $table);
-  $prefix = substr($pieces[0], 0, -1);
-  if (!empty($prefix)) {
-    $pieces[0] = 's' . $site_prefixes[$prefix]->site_id . '_' . $database['prefix'];
-    $new_name = implode('', $pieces);
-    if ($table !== $new_name && $site_prefixes[$prefix]->site_id !== NULL) {
-      echo "RENAME TABLE " . $table . " TO ". $new_name . "\n";
-      $query = db_query("RENAME TABLE ".$table." TO ".$new_name);
-    }
-    else {
-      echo "Dropping abandoned table " . $table . "\n";
-      $query = db_query("DROP TABLE " . $table);
-    }
-  }
-}
-
-
-foreach ($site_prefixes as $site_prefix => $site) {
-  // Change db_prefix col in default site unl_sites to what we created above
-  echo "Changing $site_prefix db_prefix to s$site->site_id in the {$database['prefix']}unl_sites table\n";
-  $query = db_query("UPDATE " . $database['prefix'] . "unl_sites SET db_prefix='s" . $site->site_id . "' WHERE site_id='" . $site->site_id . "'");
-
-  // Alter the settings.php file
-  echo "Rewriting the db_prefix in settings.php\n";
-  $command = "find sites -name 'settings.php' -print | xargs sed -i -e 's/" . $site_prefix . "/s" . $site->site_id . "/g'";
-  exec($command);
-}
-
-echo "Remove the settings.php-e files that were created by sed";
-$command = "find sites -name 'settings.php-e' -exec rm -rf {} \;" . "\n";
-exec($command);
-
-exit;