init

app/code/WeltPixel/Backend/Model/Scanner.php

@@ -0,0 +1,124 @@
+<?php
+
+namespace WeltPixel\Backend\Model;
+
+class Scanner extends \Magento\Framework\Model\AbstractModel
+{
+    /**
+     * @var \Magento\Framework\App\Config\FileResolver
+     */
+    protected $fileResolver;
+
+    /**
+     * @var \Magento\Framework\App\AreaList
+     */
+    protected $areaList;
+
+    /**
+     * Direct usage of \Magento\Setup\Module\Di\Code\Scanner\ConfigurationScanner
+     * caused error on compilation
+     * Argument 1 passed to Magento\\Setup\\Module\\Di\\Code\\Scanner\\ConfigurationScanner::__construct()
+     * must be an instance of Magento\\Framework\\App\\Config\\FileResolver,
+     * instance of Magento\\Framework\\ObjectManager\\ObjectManager given
+     *
+     * so FileResolver and AreaList injected directly insetad
+     *
+     * @param \Magento\Framework\Model\Context $context
+     * @param \Magento\Framework\Registry $registry
+     * @param \Magento\Framework\App\Config\FileResolver $fileResolver
+     * @param \Magento\Framework\App\AreaList $areaList
+     */
+    public function __construct(
+        \Magento\Framework\Model\Context $context,
+        \Magento\Framework\Registry $registry,
+        \Magento\Framework\App\Config\FileResolver $fileResolver,
+        \Magento\Framework\App\AreaList $areaList
+    )
+    {
+        parent::__construct($context, $registry);
+        $this->fileResolver = $fileResolver;
+        $this->areaList = $areaList;
+    }
+
+    /**
+     * \Magento\Setup\Module\Di\Code\Scanner\ConfigurationScanner scan usage,
+     * because the original class injection is causing error on compilation
+     *
+     * @param $fileName
+     * @return array
+     */
+    public function getScannedFiles($fileName) {
+        $files = [];
+        $areaCodes = array_merge(
+            ['primary', \Magento\Framework\App\Area::AREA_GLOBAL],
+            $this->areaList->getCodes()
+        );
+        foreach ($areaCodes as $area) {
+            $files = array_merge_recursive(
+                $files,
+                $this->fileResolver->get($fileName, $area)->toArray()
+            );
+        }
+        return array_keys($files);
+    }
+
+    /**
+     * @param bool $all
+     * @return array
+     */
+    public function getRewrites($all = false)
+    {
+        $diFiles = $this->getScannedFiles('di.xml');
+        $moduleFiles = $this->getScannedFiles('module.xml');
+
+        array_walk($moduleFiles, function (&$item) {
+            $item = str_replace('/module.xml', '', $item);
+        });
+
+        if (!$all) {
+            foreach ($diFiles as $key => $file) {
+                preg_match('/(.*\/etc)/', $file, $matches);
+                $resultKey = $matches[1];
+                if (!in_array($resultKey, $moduleFiles) ||
+                    (strpos($file, '/vendor/magento') !== false)
+                ) {
+                    unset($diFiles[$key]);
+                }
+            }
+        }
+
+        $rewrites = $this->_collectRewriteEntities($diFiles);
+        return $rewrites;
+
+    }
+
+    /**
+     * @param array $files
+     * @return array
+     */
+    protected function _collectRewriteEntities(array $files)
+    {
+        $rewrites = [];
+        foreach ($files as $fileName) {
+            $areaCode = 'global';
+            preg_match('/\/etc\/(.*)\/di.xml/', $fileName, $matches);
+            if (isset($matches[1])) {
+                $areaCode = $matches[1];
+            }
+            $dom = new \DOMDocument();
+            $dom->loadXML(file_get_contents($fileName));
+            $xpath = new \DOMXPath($dom);
+            /** @var $node \DOMNode */
+            foreach ($xpath->query('//preference') as $node) {
+                $originalClass = $node->getAttribute('for');
+                $rewriteClass = $node->getAttribute('type');
+
+                if (!isset($rewrites[$originalClass]) || !isset($rewrites[$originalClass][$areaCode]) || !in_array($rewriteClass, $rewrites[$originalClass][$areaCode])) {
+                    $rewrites[$originalClass][$areaCode][] = $rewriteClass;
+                }
+            }
+        }
+
+        return $rewrites;
+    }
+}