Updated Travis-CI configuration to have a 4 build grid.

The Travis config will now run tests on the following instances

 * 5.3 + SQLite
 * 5.3 + MySQL
 * 5.3 + PostgreSQL
 * 5.4 + MySQL

In other words, with the exception of Windows tech (MSSQL + Win server) this is a wide-coverage build config.

.travis.yml

@@ -1,6 +1,19 @@
 language: php 
 php: 
  - 5.3
+ - 5.4
+
+env:
+ - TESTDB=SQLITE
+ - TESTDB=MYSQL
+ - TESTDB=PGSQL
+
+matrix:
+  exclude:
+    - php: 5.4
+      env: TESTDB=PGSQL
+    - php: 5.4
+      env: TESTDB=SQLITE
 
 before_script:
  - ./tests/travis/before_script ~/builds/ss 

tests/travis/_ss_environment.php

@@ -3,13 +3,33 @@ ob_start();
 
 define('SS_ENVIRONMENT_TYPE', 'dev');
 
-/* Database connection */ 
-define('SS_DATABASE_CLASS', 'SQLitePDODatabase');
+/* Database connection */
+$db = getenv('TESTDB');
+switch($db) {
+case "PGSQL";
+	define('SS_DATABASE_CLASS', 'PostgreSQLDatabase');
+	define('SS_DATABASE_USERNAME', 'postgres'); 
+	define('SS_DATABASE_PASSWORD', '');
+	break;
+
+case "MYSQL":
+	define('SS_DATABASE_CLASS', 'MySQLDatabase');
+	define('SS_DATABASE_USERNAME', 'root'); 
+	define('SS_DATABASE_PASSWORD', '');
+	break;
+
+default:
+	define('SS_DATABASE_CLASS', 'SQLitePDODatabase');
+	define('SS_DATABASE_USERNAME', 'root'); 
+	define('SS_DATABASE_PASSWORD', '');
+}
+
+echo SS_DATABASE_CLASS;
+
 define('SS_DATABASE_SERVER', 'localhost'); 
-define('SS_DATABASE_USERNAME', 'root'); 
-define('SS_DATABASE_PASSWORD', '');
 define('SS_DATABASE_CHOOSE_NAME', true);
 
+
 /* Configure a default username and password to access the CMS on all sites in this environment. */ 
 define('SS_DEFAULT_ADMIN_USERNAME', 'username'); 
 define('SS_DEFAULT_ADMIN_PASSWORD', 'password');

tests/travis/before_script

@@ -1,6 +1,7 @@
 BUILD_DIR=$1
 git clone --depth=100 --quiet git://github.com/silverstripe/silverstripe-installer.git $BUILD_DIR
 git clone --depth=100 --quiet git://github.com/silverstripe-labs/silverstripe-sqlite3.git $BUILD_DIR/sqlite3
+git clone --depth=100 --quiet git://github.com/silverstripe/silverstripe-postgresql.git $BUILD_DIR/postgresql
 cp ./tests/travis/_ss_environment.php $BUILD_DIR
 cp ./tests/travis/_config.php $BUILD_DIR/mysite
 cp -r . $BUILD_DIR/framework