enable to sync git submodules

deploy.sample.php

@@ -6,7 +6,7 @@
 define("LOGFILE", "deploy.log");                                       // The name of the file you want to log to.
 define("GIT", "/usr/bin/git");                                         // The path to the git executable
 define("MAX_EXECUTION_TIME", 180);                                     // Override for PHP's max_execution_time (may need set in php.ini)
-define("BEFORE_PULL", "");                                             // A command to execute before pulling
+define("BEFORE_PULL", "/usr/bin/git reset --hard @{u}");               // A command to execute before pulling
 define("AFTER_PULL", "");                                              // A command to execute after successfully pulling
 
 require_once("deployer.php");

deployer.php

@@ -131,7 +131,7 @@ function forbid($file, $reason) {
             /**
              * Attempt to pull, returing the output and exit code
              */
-            exec(GIT . " pull 2>&1", $output, $exit);
+            exec(GIT . " pull --recurse-submodules 2>&1", $output, $exit);
 
             // reformat the output as a string
             $output = (!empty($output) ? implode("\n", $output) : "[no output]") . "\n";