Allow using a canonical dist file

.github/workflows/e2e.yaml

@@ -29,6 +29,8 @@ jobs:
                     - 'e2e/applied-rule-change-docblock'
                     - 'e2e/applied-rule-removed-node'
                     - 'e2e/applied-rule-return-array-nodes'
+                    - 'e2e/config-dist-fallback'
+                    - 'e2e/config-file-priority'
                     - 'e2e/different-path-over-skip-config'
                     - 'e2e/invalid-paths'
                     - 'e2e/no-parallel-reflection-resolver'

e2e/config-dist-fallback/.gitignore

@@ -0,0 +1 @@
+/vendor

e2e/config-dist-fallback/composer.json

@@ -0,0 +1,7 @@
+{
+    "require": {
+        "php": "^8.1"
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true
+}

e2e/config-dist-fallback/expected-output.diff

@@ -0,0 +1,22 @@
+1 file with changes
+===================
+
+1) src/SomeClass.php:4
+
+    ---------- begin diff ----------
+@@ @@
+
+ final class SomeClass
+ {
+-    /**
+-     * @var string
+-     */
+     public string $name = 'name';
+ }
+    ----------- end diff -----------
+
+Applied rules:
+ * RemoveUselessVarTagRector
+
+
+ [OK] 1 file would have been changed (dry-run) by Rector

e2e/config-dist-fallback/rector.dist.php

@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\DeadCode\Rector\Property\RemoveUselessVarTagRector;
+
+return static function (RectorConfig $rectorConfig): void {
+    $rectorConfig->paths([
+        __DIR__ . '/src',
+    ]);
+
+    // This rule should be applied when rector.dist.php is used as fallback
+    $rectorConfig->rule(RemoveUselessVarTagRector::class);
+};

e2e/config-dist-fallback/src/SomeClass.php

@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+final class SomeClass
+{
+    /**
+     * @var string
+     */
+    public string $name = 'name';
+}

e2e/config-file-priority/.gitignore

@@ -0,0 +1 @@
+/vendor

e2e/config-file-priority/composer.json

@@ -0,0 +1,7 @@
+{
+    "require": {
+        "php": "^8.1"
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true
+}

e2e/config-file-priority/expected-output.diff

@@ -0,0 +1,22 @@
+1 file with changes
+===================
+
+1) src/SomeClass.php:4
+
+    ---------- begin diff ----------
+@@ @@
+
+ final class SomeClass
+ {
+-    /**
+-     * @var string
+-     */
+     public string $name = 'name';
+ }
+    ----------- end diff -----------
+
+Applied rules:
+ * RemoveUselessVarTagRector
+
+
+ [OK] 1 file would have been changed (dry-run) by Rector

e2e/config-file-priority/rector.dist.php

@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\Php74\Rector\Closure\ClosureToArrowFunctionRector;
+
+return static function (RectorConfig $rectorConfig): void {
+    $rectorConfig->paths([
+        __DIR__ . '/src',
+    ]);
+
+    // This rule should NOT be applied because rector.php takes priority
+    $rectorConfig->rule(ClosureToArrowFunctionRector::class);
+};

e2e/config-file-priority/rector.php

@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\DeadCode\Rector\Property\RemoveUselessVarTagRector;
+
+return static function (RectorConfig $rectorConfig): void {
+    $rectorConfig->paths([
+        __DIR__ . '/src',
+    ]);
+
+    // This rule should be applied when rector.php is used
+    $rectorConfig->rule(RemoveUselessVarTagRector::class);
+};

e2e/config-file-priority/src/SomeClass.php

@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+final class SomeClass
+{
+    /**
+     * @var string
+     */
+    public string $name = 'name';
+}

src/Bootstrap/RectorConfigsResolver.php

@@ -10,10 +10,14 @@
 
 final class RectorConfigsResolver
 {
+    public const string DEFAULT_CONFIG_FILE = 'rector.php';
+
+    public const string DEFAULT_DIST_CONFIG_FILE = 'rector.dist.php';
+
     public function provide(): BootstrapConfigs
     {
         $argvInput = new ArgvInput();
-        $mainConfigFile = $this->resolveFromInputWithFallback($argvInput, 'rector.php');
+        $mainConfigFile = $this->resolveFromInputWithFallback($argvInput);
 
         return new BootstrapConfigs($mainConfigFile, []);
     }
@@ -30,14 +34,20 @@ private function resolveFromInput(ArgvInput $argvInput): ?string
         return realpath($configFile);
     }
 
-    private function resolveFromInputWithFallback(ArgvInput $argvInput, string $fallbackFile): ?string
+    private function resolveFromInputWithFallback(ArgvInput $argvInput): ?string
     {
         $configFile = $this->resolveFromInput($argvInput);
         if ($configFile !== null) {
             return $configFile;
         }
 
-        return $this->createFallbackFileInfoIfFound($fallbackFile);
+        // Try rector.php first, then fall back to rector.dist.php
+        $rectorConfigFile = $this->createFallbackFileInfoIfFound(self::DEFAULT_CONFIG_FILE);
+        if ($rectorConfigFile !== null) {
+            return $rectorConfigFile;
+        }
+
+        return $this->createFallbackFileInfoIfFound(self::DEFAULT_DIST_CONFIG_FILE);
     }
 
     private function createFallbackFileInfoIfFound(string $fallbackFile): ?string

src/Configuration/ConfigInitializer.php

@@ -5,6 +5,7 @@
 namespace Rector\Configuration;
 
 use Nette\Utils\FileSystem;
+use Rector\Bootstrap\RectorConfigsResolver;
 use Rector\Contract\Rector\RectorInterface;
 use Rector\FileSystem\InitFilePathsResolver;
 use Rector\PostRector\Contract\Rector\PostRectorInterface;
@@ -24,14 +25,27 @@ public function __construct(
 
     public function createConfig(string $projectDirectory): void
     {
-        $commonRectorConfigPath = $projectDirectory . '/rector.php';
+        $commonRectorConfigPath = $projectDirectory . '/' . RectorConfigsResolver::DEFAULT_CONFIG_FILE;
+        $distRectorConfigPath = $projectDirectory . '/' . RectorConfigsResolver::DEFAULT_DIST_CONFIG_FILE;
 
         if (file_exists($commonRectorConfigPath)) {
-            $this->symfonyStyle->warning('Register rules or sets in your "rector.php" config');
+            $this->symfonyStyle->warning(
+                'Register rules or sets in your "' . RectorConfigsResolver::DEFAULT_CONFIG_FILE . '" config'
+            );
             return;
         }
 
-        $response = $this->symfonyStyle->ask('No "rector.php" config found. Should we generate it for you?', 'yes');
+        if (file_exists($distRectorConfigPath)) {
+            $this->symfonyStyle->warning(
+                'Register rules or sets in your "' . RectorConfigsResolver::DEFAULT_DIST_CONFIG_FILE . '" config'
+            );
+            return;
+        }
+
+        $response = $this->symfonyStyle->ask(
+            'No "' . RectorConfigsResolver::DEFAULT_CONFIG_FILE . '" config found. Should we generate it for you?',
+            'yes'
+        );
         // be tolerant about input
         if (! in_array($response, ['yes', 'YES', 'y', 'Y'], true)) {
             // okay, nothing we can do

src/Console/ConsoleApplication.php

@@ -120,8 +120,7 @@ private function addCustomOptions(InputDefinition $inputDefinition): void
             Option::CONFIG,
             'c',
             InputOption::VALUE_REQUIRED,
-            'Path to config file',
-            $this->getDefaultConfigPath()
+            'Path to config file'
         ));
 
         $inputDefinition->addOption(new InputOption(
@@ -146,11 +145,6 @@ private function addCustomOptions(InputDefinition $inputDefinition): void
         ));
     }
 
-    private function getDefaultConfigPath(): string
-    {
-        return getcwd() . '/rector.php';
-    }
-
     private function enableXdebug(InputInterface $input): void
     {
         $isXdebugAllowed = $input->hasParameterOption('--xdebug');

src/Parallel/Command/WorkerCommandLineFactory.php

@@ -95,27 +95,32 @@ public function create(
         // @see https://github.com/symfony/symfony/issues/1238
         $workerCommandArray[] = '--no-ansi';
 
+        // Only pass --config if explicitly set via command line
+        // If not set, the worker will resolve config using RectorConfigsResolver fallback mechanism
         if ($input->hasOption(Option::CONFIG)) {
-            $workerCommandArray[] = '--config';
-            /**
-             * On parallel, the command is generated with `--config` addition
-             * Using escapeshellarg() to ensure the --config path escaped, even when it has a space.
-             *
-             * eg:
-             *    --config /path/e2e/parallel with space/rector.php
-             *
-             * that can cause error:
-             *
-             *    File /rector-src/e2e/parallel\" was not found
-             *
-             * the escaped result is:
-             *
-             *    --config '/path/e2e/parallel with space/rector.php'
-             *
-             * tested in macOS and Ubuntu (github action)
-             */
-            $config = (string) $input->getOption(Option::CONFIG);
-            $workerCommandArray[] = escapeshellarg($this->filePathHelper->relativePath($config));
+            $configValue = $input->getOption(Option::CONFIG);
+            if (is_string($configValue) && $configValue !== '') {
+                $workerCommandArray[] = '--config';
+                /**
+                 * On parallel, the command is generated with `--config` addition
+                 * Using escapeshellarg() to ensure the --config path escaped, even when it has a space.
+                 *
+                 * eg:
+                 *    --config /path/e2e/parallel with space/rector.php
+                 *
+                 * that can cause error:
+                 *
+                 *    File /rector-src/e2e/parallel\" was not found
+                 *
+                 * the escaped result is:
+                 *
+                 *    --config '/path/e2e/parallel with space/rector.php'
+                 *
+                 * tested in macOS and Ubuntu (github action)
+                 */
+                $config = $configValue;
+                $workerCommandArray[] = escapeshellarg($this->filePathHelper->relativePath($config));
+            }
         }
 
         if ($input->getOption(Option::ONLY) !== null) {
@@ -132,8 +137,8 @@ private function shouldSkipOption(InputInterface $input, string $optionName): bo
             return true;
         }
 
-        // skip output format, not relevant in parallel worker command
-        return $optionName === Option::OUTPUT_FORMAT;
+        // skip output format and config, handled separately in create()
+        return $optionName === Option::OUTPUT_FORMAT || $optionName === Option::CONFIG;
     }
 
     /**