Add build function check for current OS and update validation logic

captainhook.json

@@ -11,7 +11,7 @@
         "enabled": true,
         "actions": [
             {
-                "action": "composer cs-fix -- --config=.php-cs-fixer.php --dry-run --diff {$STAGED_FILES|of-type:php}",
+                "action": ".\\vendor\\bin\\php-cs-fixer fix --config=.php-cs-fixer.php --dry-run --diff {$STAGED_FILES|of-type:php}",
                 "conditions": [
                     {
                         "exec": "\\CaptainHook\\App\\Hook\\Condition\\FileStaged\\OfType",

src/Package/Target/php.php

@@ -15,6 +15,7 @@ use StaticPHP\Attribute\Package\Validate;
 use StaticPHP\Attribute\PatchDescription;
 use StaticPHP\Config\PackageConfig;
 use StaticPHP\DI\ApplicationContext;
+use StaticPHP\Exception\EnvironmentException;
 use StaticPHP\Exception\SPCException;
 use StaticPHP\Exception\WrongUsageException;
 use StaticPHP\Package\Package;
@@ -529,6 +530,12 @@ class php extends TargetPackage
         $package->runStage([$this, 'unixBuildSharedExt']);
     }
 
+    #[BuildFor('Windows')]
+    public function buildWin(TargetPackage $package): void
+    {
+        throw new EnvironmentException('Not implemented');
+    }
+
     /**
      * Patch phpize and php-config if needed
      */

src/StaticPHP/Package/Package.php

@@ -127,6 +127,14 @@ abstract class Package
         return false;
     }
 
+    /**
+     * Check if the package has a build function for the current OS.
+     */
+    public function hasBuildFunctionForCurrentOS(): bool
+    {
+        return isset($this->build_functions[PHP_OS_FAMILY]);
+    }
+
     /**
      * Get the name of the package.
      */

src/StaticPHP/Registry/PackageLoader.php

@@ -306,7 +306,9 @@ class PackageLoader
                         }
                     }
                     // check stage exists
-                    if (!$pkg->hasStage($stage_name)) {
+                    // Skip validation if the package has no build function for current OS
+                    // (e.g., libedit has BeforeStage for 'build' but only BuildFor('Darwin'/'Linux'))
+                    if (!$pkg->hasStage($stage_name) && $pkg->hasBuildFunctionForCurrentOS()) {
                         throw new RegistryException("Package stage [{$stage_name}] is not registered in package [{$package_name}].");
                     }
                 }

tests/StaticPHP/Registry/PackageLoaderTest.php

@@ -377,6 +377,10 @@ class PackageLoaderTest extends TestCase
         $this->createTestPackageConfig('test-lib', 'library');
         PackageLoader::initPackageInstances();
 
+        // Add a build function for current OS so the stage validation is triggered
+        $package = PackageLoader::getPackage('test-lib');
+        $package->addBuildFunction(PHP_OS_FAMILY, fn () => null);
+
         // Manually add a before_stage for non-existent stage
         $reflection = new \ReflectionClass(PackageLoader::class);
         $property = $reflection->getProperty('before_stages');
@@ -417,6 +421,33 @@ class PackageLoaderTest extends TestCase
         PackageLoader::checkLoadedStageEvents();
     }
 
+    public function testCheckLoadedStageEventsDoesNotThrowForNonCurrentOSPackage(): void
+    {
+        $this->createTestPackageConfig('test-lib', 'library');
+        PackageLoader::initPackageInstances();
+
+        // Add a build function for a different OS (not current OS)
+        $package = PackageLoader::getPackage('test-lib');
+        $otherOS = PHP_OS_FAMILY === 'Windows' ? 'Linux' : 'Windows';
+        $package->addBuildFunction($otherOS, fn () => null);
+
+        // Manually add a before_stage for 'build' stage
+        // This should NOT throw an exception because the package has no build function for current OS
+        $reflection = new \ReflectionClass(PackageLoader::class);
+        $property = $reflection->getProperty('before_stages');
+        $property->setAccessible(true);
+        $property->setValue(null, [
+            'test-lib' => [
+                'build' => [[fn () => null, null]],
+            ],
+        ]);
+
+        // This should not throw an exception
+        PackageLoader::checkLoadedStageEvents();
+
+        $this->assertTrue(true); // If we get here, the test passed
+    }
+
     public function testGetBeforeStageCallbacksReturnsCallbacks(): void
     {
         PackageLoader::initPackageInstances();