Initial xentral_oss_20.3.c9ffacf

classes/Core/Installer/ClassMapGenerator.php

@@ -0,0 +1,110 @@
+<?php
+
+namespace Xentral\Core\Installer;
+
+use RecursiveDirectoryIterator;
+use RecursiveIteratorIterator;
+use RegexIterator;
+
+/**
+ * Scans recursively a directory and generates a class map for autoloading
+ */
+final class ClassMapGenerator
+{
+    /** @var Psr4ClassNameResolver $resolver */
+    private $resolver;
+
+    /** @var string $baseDir */
+    private $baseDir;
+
+    /**
+     * @param Psr4ClassNameResolver $resolver
+     * @param string                $baseDir Absolute path to installation folder
+     */
+    public function __construct(Psr4ClassNameResolver $resolver, $baseDir)
+    {
+        $this->resolver = $resolver;
+        $this->baseDir = $this->removeTrailingSlashFromDirectory($baseDir);
+    }
+
+    /**
+     * @param string $scanDir Absolute path to directory
+     *
+     * @return array
+     */
+    public function generate($scanDir)
+    {
+        if (!is_dir($scanDir)) {
+            throw new \RuntimeException(sprintf(
+                '"%s" is not a directory.', $scanDir
+            ));
+        }
+
+        return $this->scanDir($scanDir);
+        //return $this->prepareClassMap($classMap);
+    }
+
+    /**
+     * @param string $scanDir Absolute path (without trailing slash)
+     *
+     * @return array
+     */
+    private function scanDir($scanDir)
+    {
+        $scanDir = $this->removeTrailingSlashFromDirectory($scanDir);
+
+        $directory = new RecursiveDirectoryIterator($scanDir);
+        $iterator = new RecursiveIteratorIterator($directory);
+        $matcher = new RegexIterator($iterator, '/^.+\.php$/', RegexIterator::MATCH);
+
+        $files = [];
+
+        /** @var \SplFileInfo $match */
+        foreach ($matcher as $match) {
+            $files[] = $match->getRealPath();
+        }
+
+        $map = [];
+        foreach ($files as $file) {
+            $className = $this->resolver->resolveClassName($file);
+            if ($className !== null) {
+                $map[$className] = $file;
+            }
+        }
+
+        return $map;
+    }
+
+    /**
+     * Prepare file paths; make them relative to base dir
+     *
+     * @param array $classMap
+     *
+     * @return array
+     */
+    private function prepareClassMap(array $classMap)
+    {
+        $prepared = [];
+
+        foreach ($classMap as $class => $file) {
+            $relativePath = str_replace($this->baseDir, '', $file);
+            $prepared[$class] = $relativePath;
+        }
+
+        return $prepared;
+    }
+
+    /**
+     * @param string $dir
+     *
+     * @return string
+     */
+    private function removeTrailingSlashFromDirectory($dir)
+    {
+        if (substr($dir, -1) === '/') {
+            return substr_replace($dir, '', -1);
+        }
+
+        return $dir;
+    }
+}