use autoload file from root-library vendor dir if it exists, fixes GH-7

bin/compile

@@ -1,12 +1,7 @@
 #!/usr/bin/env php
 <?php
 
-if (!@include __DIR__.'/../vendor/.composer/autoload.php') {
-    die('You must set up the project dependencies, run the following commands:
-wget http://getcomposer.org/composer.phar
-php composer.phar install
-');
-}
+require __DIR__.'/../src/bootstrap.php';
 
 use Composer\Satis\Compiler;
 

bin/satis

@@ -1,12 +1,7 @@
 #!/usr/bin/env php
 <?php
 
-if (!@include __DIR__.'/../vendor/.composer/autoload.php') {
-    die('You must set up the project dependencies, run the following commands:
-wget http://getcomposer.org/composer.phar
-php composer.phar install
-');
-}
+require __DIR__.'/../src/bootstrap.php';
 
 use Composer\Satis\Console\Application;
 

src/bootstrap.php

@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * This file is part of Satis.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+function includeIfExists($file) {
+    if (file_exists($file)) {
+        return include $file;
+    }
+}
+
+if ((!$loader = includeIfExists(__DIR__.'/../../../.composer/autoload.php')) && (!$loader = includeIfExists(__DIR__.'/../vendor/.composer/autoload.php'))) {
+    die('You must set up the project dependencies, run the following commands:'.PHP_EOL.
+        'curl -s http://getcomposer.org/installer | php'.PHP_EOL.
+        'php composer.phar install'.PHP_EOL);
+}
+
+return $loader;

tests/bootstrap.php

@@ -10,5 +10,5 @@
  * file that was distributed with this source code.
  */
 
-$loader = require __DIR__.'/../vendor/.composer/autoload.php';
+$loader = require __DIR__.'/../src/bootstrap.php';
 $loader->add('Composer\Test', __DIR__);