diff --git a/config.dist.php b/config.dist.php
index fc984b5..74c2171 100644
--- a/config.dist.php
+++ b/config.dist.php
@@ -1,5 +1,5 @@
 <?php
 
 return array(
-  'passwd' => 'change me'
+    'passwd' => 'change me'
 );
diff --git a/hook.php b/hook.php
index ac7104e..37a9114 100644
--- a/hook.php
+++ b/hook.php
@@ -2,14 +2,18 @@
 
 require_once('inc.php');
 header('Content-Type: text/plain');
-if(file_exists('key.php')) {
-  $key = require('key.php');
-  if($key['current'] === $_SERVER['QUERY_STRING']) {
-    $pwd = getcwd();
-    chdir(dirname($pwd));
-    _exec('pwd');
-    _exec('git pull');
-  }
+if (file_exists('key.php'))
+{
+    $key = require('key.php');
+    if ($key['current'] === $_SERVER['QUERY_STRING'])
+    {
+        $submodule = getcwd();
+        $project = $submodule.'/../../../';
+        chdir(dirname($project));
+        _exec('pwd');
+        _exec('git pull');
+        _exec('git submodule update');
+    }
 }
 
 _log(var_export($_POST, true));
\ No newline at end of file
diff --git a/inc.php b/inc.php
index e743533..d900d50 100644
--- a/inc.php
+++ b/inc.php
@@ -2,14 +2,16 @@
 
 #error_reporting(0);
 
-function _exec($cmd) {
-  $out = "$ ".$cmd."\n";
-  $out .= shell_exec($cmd.' 2>&1');
-  _log($out);
+function _exec($cmd)
+{
+    $out = "$ " . $cmd . "\n";
+    $out .= shell_exec($cmd . ' 2>&1');
+    _log($out);
 }
 
-function _log($str) {
-  $out = "\n".date('r')." ".$str;
-  echo $out;
-  error_log($out, 3, '.webhook.log');
+function _log($str)
+{
+    $out = "\n" . date('r') . " " . $str;
+    echo $out;
+    error_log($out, 3, '.webhook.log');
 }
diff --git a/link.php b/link.php
index 54f635a..6ed274b 100644
--- a/link.php
+++ b/link.php
@@ -3,29 +3,40 @@
 require_once('inc.php');
 $config = require('config.php');
 
-if(file_exists('key.php')) {
-  $key = require('key.php');
-  if($key['current'] !== $_SERVER['QUERY_STRING']) {
-    if($key['previous'] === $_SERVER['QUERY_STRING']) {
-      header('Location: ?'.$key['current']);
-    } else if(!isset($_POST['passwd'])) {
-      echo '<form method="post"><input type="password" name="passwd" /></form>';
-    } else if($_POST['passwd'] !== $config['passwd']) {
-      echo 'Wrong';
-    } else {
-      header('Location: ?'.$key['current']);
+if (file_exists('key.php'))
+{
+    $key = require('key.php');
+    if ($key['current'] !== $_SERVER['QUERY_STRING'])
+    {
+        if ($key['previous'] === $_SERVER['QUERY_STRING'])
+        {
+            header('Location: ?' . $key['current']);
+        }
+        else if (!isset($_POST['passwd']))
+        {
+            echo '<form method="post"><input type="password" name="passwd" /></form>';
+        }
+        else if ($_POST['passwd'] !== $config['passwd'])
+        {
+            echo 'Wrong';
+        }
+        else
+        {
+            header('Location: ?' . $key['current']);
+        }
+        exit;
     }
-    exit;
-  }
-} else {
+}
+else
+{
 }
 
-mt_srand(microtime(true)*1000);
-$new = sha1(crypt(microtime(true).mt_rand().time().mt_rand()));
-file_put_contents('key.php', '<?php return '.var_export(array(
-  'current' => $new,
-  'previous' => isset($key) ? $key['current'] : '',
-), true).';');
+mt_srand(microtime(true) * 1000);
+$new = sha1(crypt(microtime(true) . mt_rand() . time() . mt_rand()));
+file_put_contents('key.php', '<?php return ' . var_export(array(
+    'current' => $new,
+    'previous' => isset($key) ? $key['current'] : '',
+), true) . ';');
 
-echo '<label for="webhook">Webhook:</label> <input id="webhook" size="80" type="text" value="'.dirname($_SERVER['SCRIPT_URI']).'/hook.php?'.$new.'" />';
+echo '<label for="webhook">Webhook:</label> <input id="webhook" size="80" type="text" value="' . dirname($_SERVER['SCRIPT_URI']) . '/hook.php?' . $new . '" />';
 //print_r($_SERVER);