[Process] Added ProcessBuilder::addEnvironmentVariables

src/Symfony/Component/Process/ProcessBuilder.php

@@ -108,6 +108,13 @@ class ProcessBuilder
         return $this;
     }
 
+    public function addEnvironmentVariables(array $variables)
+    {
+        $this->env = array_replace($this->env, $variables);
+
+        return $this;
+    }
+
     public function setInput($stdin)
     {
         $this->stdin = $stdin;

src/Symfony/Component/Process/Tests/ProcessBuilderTest.php

@@ -53,6 +53,23 @@ class ProcessBuilderTest extends \PHPUnit_Framework_TestCase
         $this->assertNull($proc->getEnv());
     }
 
+    public function testAddEnvironmentVariables()
+    {
+        $pb = new ProcessBuilder();
+        $env = array(
+            'foo' => 'bar',
+            'foo2' => 'bar2',
+        );
+        $proc = $pb
+            ->add('command')
+            ->setEnv('foo', 'bar2')
+            ->addEnvironmentVariables($env)
+            ->getProcess()
+        ;
+
+        $this->assertSame($env, $proc->getEnv());
+    }
+
     public function testNotReplaceExplicitlySetVars()
     {
         $snapshot = $_ENV;