Update mechanism to retrieve yaml tests

Migrating away from a pure-composer solution because it is too
difficult to sync multiple branches/tests.  Added a new RestSpecRunner
which will checkout the appropriate commit/branch based on an env
variable.

In the future will add logic to also scan for locally running
clusters and find the appropriate tests.

Author: polyfractal

Diff for: .gitmodules

@@ -0,0 +1,3 @@
+[submodule "util/elasticsearch"]
+	path = util/elasticsearch
+	url = https://github.com/elasticsearch/elasticsearch.git

Diff for: composer.json

@@ -25,28 +25,13 @@
     "satooshi/php-coveralls": "dev-master",
     "mikey179/vfsStream": "~1.2",
     "twig/twig": "1.*",
-    "elasticsearch/elasticsearch_src" : "dev-master"
+    "cpliakas/git-wrapper": "~1.0"
   },
   "autoload": {
     "psr-0": {
       "Elasticsearch": "src/",
       "Elasticsearch\\Tests" : "tests/",
       "Elasticsearch\\Benchmarks" : "benchmarks/"
     }
-  },
-  "repositories":[
-    {
-      "type":"package",
-      "package":{
-        "name":"elasticsearch/elasticsearch_src",
-        "description":"elasticsearch",
-        "version":"dev-master",
-        "source":{
-          "type" : "git",
-          "url":"git://github.com/elasticsearch/elasticsearch.git",
-          "reference" : "550c4079949baabef17e5a7845aadf36dccb41af"
-        }
-      }
-    }
-  ]
+  }
 }

Diff for: tests/Elasticsearch/Tests/YamlRunnerTest.php

@@ -165,7 +165,7 @@ private function waitForYellow()
 
     public static function provider()
     {
-        $path = dirname(__FILE__).'/../../../vendor/elasticsearch/elasticsearch_src/rest-api-spec/test/';
+        $path = dirname(__FILE__).'/../../../util/elasticsearch/rest-api-spec/test/';
 
         $files = array();
         $objects = new RecursiveIteratorIterator(

Diff for: util/RestSpecRunner.php

@@ -0,0 +1,35 @@
+<?php
+/**
+ * User: zach
+ * Date: 3/5/14
+ * Time: 10:41 AM
+ */
+
+error_reporting(E_ALL | E_STRICT);
+
+// Set the default timezone. While this doesn't cause any tests to fail, PHP
+// complains if it is not set in 'date.timezone' of php.ini.
+date_default_timezone_set('UTC');
+
+// Ensure that composer has installed all dependencies
+if (!file_exists(dirname(__DIR__) . '/composer.lock')) {
+    die("Dependencies must be installed using composer:\n\nphp composer.phar install --dev\n\n"
+        . "See http://getcomposer.org for help with installing composer\n");
+}
+
+// Include the composer autoloader
+$autoloader = require_once(dirname(__DIR__) . '/vendor/autoload.php');
+
+
+$gitWrapper = new \GitWrapper\GitWrapper();
+$git = $gitWrapper->workingCopy(dirname(__DIR__) . '/util/elasticsearch');
+
+
+
+echo "Update elasticsearch submodule\n";
+$git->fetchAll(array('verbose' => true));
+
+
+$hash = $_SERVER['TEST_BUILD_REF'];
+echo "Checkout yaml tests (hash: $hash)\n";
+$git->checkout($hash, array('force' => true, 'quiet' => true));