Moving slowly forward on the batch installer. It now connects to the database and checks that the supplied database is defined.

installer/libraries/Install_Mysql_Driver.php

@@ -0,0 +1,44 @@
+<?php
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2008 Bharat Mediratta
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+class Install_Mysql_Driver {
+  private $link;
+  
+  public function __construct($server, $user, $password) {
+    $this->link = @mysql_connect($server, $user, $password);
+    if (!$this->link) {
+      throw new Exception(mysql_error());
+    }
+  }
+
+  public function __destruct() {
+    if (!empty($this->link)) {
+      @mysql_close($this->link);
+    }
+  }
+
+  public function list_dbs() {
+    $db_list = mysql_list_dbs($this->link);
+    $databases = array();
+    while ($row = mysql_fetch_object($db_list)) {
+      $databases[$row->Database] = 1;
+    }
+    return $databases;
+  }
+}