MAGETWO-33040: Deployment tool treats documentation as public assets and fails on minification attempt

Author: vkholoshenko

lib/internal/Magento/Framework/Code/Minifier/Adapter/Css/CssMinifier.php

@@ -11,6 +11,11 @@
 
 class CssMinifier implements AdapterInterface
 {
+    /**
+     * 'pcre.recursion_limit' value for CSSMin minification
+     */
+    const PCRE_RECURSION_LIMIT = 1000;
+
     /**
      * @var CSSmin
      */
@@ -32,6 +37,10 @@ public function __construct(CSSmin $cssMinifier)
      */
     public function minify($content)
     {
-        return $this->cssMinifier->run($content);
+        $pcreRecursionLimit = ini_get('pcre.recursion_limit');
+        ini_set('pcre.recursion_limit', self::PCRE_RECURSION_LIMIT);
+        $result = $this->cssMinifier->run($content);
+        ini_set('pcre.recursion_limit', $pcreRecursionLimit);
+        return $result;
     }
 }