Move amphp dependencies to suggest

README.md

@@ -374,7 +374,15 @@ Discover::in(__DIR__)
 
 ### Parallel
 
-Getting all structures in a bigger application can be slow due to many files being scanned. This process can be sped up by parallelized scanning. You can enable this as such:
+Getting all structures in a bigger application can be slow due to many files being scanned.
+
+Before running in parallel, make sure to install `amphp/parallel`
+
+```shell
+composer require amphp/parallel
+```
+
+The process can be sped up by parallelized scanning. You can enable this as such:
 
 ```php
 Discover::in(__DIR__)->parallel()->get();

composer.json

@@ -18,13 +18,12 @@
     ],
     "require": {
         "php": "^8.1",
-        "amphp/amp": "^v3.0",
-        "amphp/parallel": "^2.2",
         "illuminate/collections": "^10.0|^11.0|^12.0",
         "spatie/laravel-package-tools": "^1.4.3",
         "symfony/finder": "^6.0|^7.0"
     },
     "require-dev": {
+        "amphp/parallel": "^2.2",
         "illuminate/console": "^10.0|^11.0|^12.0",
         "laravel/pint": "^1.0",
         "nunomaduro/collision": "^7.0|^8.0",
@@ -37,6 +36,9 @@
         "phpunit/phpunit": "^9.5|^10.0|^11.5.3",
         "spatie/laravel-ray": "^1.26"
     },
+    "suggest" : {
+        "amphp/parallel": "When you want to use the Parallel discover worker"
+    },
     "autoload": {
         "psr-4": {
             "Spatie\\StructureDiscoverer\\": "src"

src/Discover.php

@@ -10,6 +10,7 @@
 use Spatie\StructureDiscoverer\DiscoverWorkers\ParallelDiscoverWorker;
 use Spatie\StructureDiscoverer\DiscoverWorkers\SynchronousDiscoverWorker;
 use Spatie\StructureDiscoverer\Enums\Sort;
+use Spatie\StructureDiscoverer\Exceptions\AmpNotInstalled;
 use Spatie\StructureDiscoverer\Exceptions\NoCacheConfigured;
 use Spatie\StructureDiscoverer\StructureParsers\PhpTokenStructureParser;
 use Spatie\StructureDiscoverer\StructureParsers\ReflectionStructureParser;
@@ -111,6 +112,10 @@ public function usingWorker(DiscoverWorker $worker): self
 
     public function parallel(int $filesPerJob = 50): self
     {
+        if (! function_exists('\Amp\Future\await')) {
+            throw AmpNotInstalled::create();
+        }
+
         return $this->usingWorker(new ParallelDiscoverWorker($filesPerJob));
     }
 

src/Exceptions/AmpNotInstalled.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Spatie\StructureDiscoverer\Exceptions;
+
+use Exception;
+
+class AmpNotInstalled extends Exception
+{
+    public static function create(): self
+    {
+        return new self('Parallel structure discovery requires amphp/parallel to be installed.');
+    }
+}

src/Support/StructuresResolver.php

@@ -65,7 +65,8 @@ protected function discover(DiscoverProfileConfig $config): array
 
         $filenames = collect($files)
             ->reject(fn (SplFileInfo $file) => in_array($file->getPathname(), $config->ignoredFiles) || $file->getExtension() !== 'php')
-            ->map(fn (SplFileInfo $file) => $file->getPathname());
+            ->map(fn (SplFileInfo $file) => $file->getPathname())
+            ->values();
 
         return $this->discoverWorker->run($filenames, $config);
     }