Fix autoloading for tools/cli-toolkit when being included into projects.

Author: MagicPush

docs/changelog.md

@@ -2,7 +2,16 @@
 
 This change log references the repository changes and releases, which respect [semantic versioning](https://semver.org).
 
-## v2.0.1
+## v2.1.0
+
+### New features
+
+1. [AutoloadDetector.php](../tools/cli-toolkit/Classes/AutoloadDetector.php) is added for
+   [init.php](../tools/cli-toolkit/init.php).
+
+   Previously all built-in scripts ([cli-toolkit](../tools/cli-toolkit)) could not be launched without calling
+   `composer install` additionally inside the library directory.
+   And from now on your main project's `vendor/autoload.php` path should be detectable.
 
 ### Patches
 

tools/cli-toolkit/Classes/AutoloadDetector.php

@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+namespace MagicPush\CliToolkit\Tools\CliToolkit\Classes;
+
+class AutoloadDetector {
+    public static function detectAndRequire(): void {
+        $currentDirPath = __DIR__;
+        $detectedPath   = null;
+        while (true) {
+            $autoloaderPath = $currentDirPath . '/vendor/autoload.php';
+            if (file_exists($autoloaderPath)) {
+                require_once $autoloaderPath;
+
+                return;
+            }
+
+            $previousDirPath = $currentDirPath;
+            $currentDirPath  = dirname($previousDirPath);
+            // We can't go higher than a filesystem's top:
+            if ($currentDirPath === $previousDirPath) {
+                return;
+            }
+        }
+    }
+}

tools/cli-toolkit/init.php

@@ -2,7 +2,11 @@
 
 declare(strict_types=1);
 
-require_once __DIR__ . '/../../vendor/autoload.php';
+use MagicPush\CliToolkit\Tools\CliToolkit\Classes\AutoloadDetector;
+
+require_once __DIR__ . '/Classes/AutoloadDetector.php';
+
+AutoloadDetector::detectAndRequire();
 
 mb_internal_encoding('UTF-8');
 setlocale(LC_ALL, 'en_US.UTF-8');