Add script to re-initialize git submodules

This script reads .gitmodules file in a git repository and run "git
submodule add XX YY" command for each of them

addsubmodules.php

@@ -0,0 +1,12 @@
+<?php
+$gitmodules = file_get_contents('.gitmodules');
+$submodules = preg_split('/\[submodule(.*)\]/', $gitmodules);
+foreach ($submodules as $submoduleSpec) {
+	if (! empty($submoduleSpec)) {
+		preg_match('/path = (.*)/',  $submoduleSpec, $pathMatch);
+		preg_match('/url = (.*)/',  $submoduleSpec, $urlMatch);
+		$command = 'git submodule add '.$urlMatch[1].' '.$pathMatch[1];
+		system($command);
+	}
+}
+?>