Support custom fixers

Author: Riley19280

app/Factories/ConfigurationFactory.php

@@ -42,12 +42,15 @@ class ConfigurationFactory
      */
     public static function preset($rules)
     {
+        $configRepo = resolve(ConfigurationJsonRepository::class);
+
         return (new Config)
             ->setParallelConfig(ParallelConfigFactory::detect())
             ->setFinder(self::finder())
-            ->setRules(array_merge($rules, resolve(ConfigurationJsonRepository::class)->rules()))
+            ->setRules(array_merge($rules, $configRepo->rules()))
             ->setRiskyAllowed(true)
-            ->setUsingCache(true);
+            ->setUsingCache(true)
+            ->registerCustomFixers($configRepo->customFixers());
     }
 
     /**

app/Repositories/ConfigurationJsonRepository.php

@@ -2,6 +2,9 @@
 
 namespace App\Repositories;
 
+use App\Project;
+use PhpToken;
+
 class ConfigurationJsonRepository
 {
     /**
@@ -69,6 +72,36 @@ public function preset()
         return $this->preset ?: ($this->get()['preset'] ?? 'laravel');
     }
 
+    /**
+     * Get the custom fixers.
+     *
+     * @return array<int, \PhpCsFixer\Fixer\FixerInterface>
+     */
+    public function customFixers()
+    {
+        return collect($this->get()['custom-fixers'] ?? [])
+            ->map(function ($fixerPath) {
+                $fixerProjectPath = Project::path().'/'.$fixerPath;
+
+                spl_autoload_register(fn () => require_once ($fixerProjectPath));
+
+                $tokens = PhpToken::tokenize(file_get_contents($fixerProjectPath));
+
+                $namespace = null;
+                foreach ($tokens as $idx => $token) {
+                    if ($token->id == T_NAMESPACE) {
+                        $namespace = $tokens[$idx + 2]->text;
+                        break;
+                    }
+                }
+
+                $fixerClasspath = $namespace.'\\'.basename($fixerPath, '.php');
+
+                return new $fixerClasspath;
+            })
+            ->toArray();
+    }
+
     /**
      * Get the configuration from the "pint.json" file.
      *

tests/Fixtures/custom/CustomFixer.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Tests\Fixtures\custom;
+
+use PhpCsFixer\Fixer\FixerInterface;
+use PhpCsFixer\FixerDefinition\FixerDefinition;
+use PhpCsFixer\FixerDefinition\FixerDefinitionInterface;
+use PhpCsFixer\Tokenizer\Tokens;
+
+class CustomFixer implements FixerInterface {
+
+    public function getName(): string {
+        return 'My/CustomFixer';
+    }
+
+    public function getDefinition(): FixerDefinitionInterface {
+        return new FixerDefinition('A custom fixer', []);
+    }
+
+    public function fix(\SplFileInfo $file, Tokens $tokens): void {
+        //
+    }
+
+    public function isCandidate(Tokens $tokens): bool {
+        return true;
+    }
+
+    public function supports(\SplFileInfo $file): bool {
+        return true;
+    }
+
+    public function isRisky(): bool {
+        return false;
+    }
+
+    public function getPriority(): int {
+        return 0;
+    }
+
+}

tests/Fixtures/custom/pint.json

@@ -0,0 +1,5 @@
+{
+    "custom-fixers": [
+        "tests/Fixtures/custom/CustomFixer.php"
+    ]
+}

tests/Unit/Repositories/ConfigurationJsonRepositoryTest.php

@@ -46,3 +46,14 @@
 
     expect($repository->preset())->toBe('laravel');
 });
+
+it('may have custom fixers options', function () {
+    $repository = new ConfigurationJsonRepository(dirname(__DIR__, 2).'/Fixtures/custom/pint.json', null);
+
+    expect($repository->customFixers())
+        ->ToBeArray()
+        ->toContainOnlyInstancesOf(\PhpCsFixer\Fixer\FixerInterface::class)
+        ->toMatchArray([
+            new \Tests\Fixtures\custom\CustomFixer,
+        ]);
+});