From c5b20b48911e9813610a99bcefcb878c36748522 Mon Sep 17 00:00:00 2001
From: Dan Cryer <dan@block8.co.uk>
Date: Wed, 22 May 2013 17:23:35 +0100
Subject: [PATCH] Adding Shell plugin, but with the requirement that
 ENABLE_SHELL_PLUGIN must be defined and true, to give sysadmins some control.
 Closes #45.

---
 PHPCI/Plugin/Shell.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/PHPCI/Plugin/Shell.php b/PHPCI/Plugin/Shell.php
index 602824ec..83595ad8 100644
--- a/PHPCI/Plugin/Shell.php
+++ b/PHPCI/Plugin/Shell.php
@@ -41,6 +41,10 @@ class Shell implements \PHPCI\Plugin
     */
     public function execute()
     {
+        if (!defined('ENABLE_SHELL_PLUGIN') || !ENABLE_SHELL_PLUGIN) {
+            throw new \Exception('The shell plugin is not enabled.');
+        }
+        
         $success = $this->phpci->executeCommand($this->command);
         
         return $success;