Add custom loaders

Author: saeedvaziry

index.php

@@ -1,5 +1,6 @@
 <?php
 
+use TweakPHP\Client\Cli;
 use TweakPHP\Client\Loader;
 
 require __DIR__.'/vendor/autoload.php';
@@ -11,7 +12,8 @@
     exit(1);
 }
 
-$loader = Loader::load($arguments[1]);
+$customLoader = Cli::getArgument('loader');
+$loader = Loader::load($arguments[1], $customLoader);
 
 if ($loader === null) {
     echo 'Invalid path'.PHP_EOL;

src/Cli.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace TweakPHP\Client;
+
+class Cli
+{
+    public static function getArgument(string $argument): string
+    {
+        $arguments = $_SERVER['argv'] ?? [];
+
+        foreach ($arguments as $arg) {
+            if (strpos($arg, "--$argument=") === 0) {
+                return substr($arg, strlen("--$argument="));
+            }
+        }
+
+        return '';
+    }
+}

src/Loader.php

@@ -14,8 +14,16 @@ class Loader
     /**
      * @return null|LoaderInterface
      */
-    public static function load(string $path)
+    public static function load(string $path, ?string $loaderPath = null)
     {
+        if ($loaderPath !== null) {
+            $loaderClass = self::getLoaderClassFromPath($loaderPath);
+
+            if ($loaderClass !== null) {
+                return new $loaderClass($path);
+            }
+        }
+
         if (LaravelLoader::supports($path)) {
             return new LaravelLoader($path);
         }
@@ -38,4 +46,25 @@ public static function load(string $path)
 
         return null;
     }
+
+    private static function getLoaderClassFromPath(string $path)
+    {
+        if (! file_exists($path)) {
+            return null;
+        }
+
+        $declaredClassesBefore = get_declared_classes();
+
+        require_once $path;
+
+        $declaredClassesAfter = get_declared_classes();
+
+        $newClasses = array_diff($declaredClassesAfter, $declaredClassesBefore);
+
+        if (empty($newClasses)) {
+            return null;
+        }
+
+        return reset($newClasses);
+    }
 }