default parameters (wwwDir, appDir, ...) are now overridable in user configs

Previously, parameters from getDefaultParameters() were injected into the
compiler AFTER all user configs, which silently overrode any redefinition
in common.neon. As a result, e.g. `wwwDir: %rootDir%/www` in a config had
no effect when the entry script lived outside %rootDir%/www (CLI scripts,
MCP servers, scheduled tasks).

Fix: snapshot defaults into $defaultParameters at construction. In
generateContainer(), inject defaults BEFORE user configs (overridable),
then inject only the diff between $staticParameters and defaults AFTER
configs (authoritative — preserves back-compat for setTempDirectory(),
addStaticParameters() and similar setters).

Author: dg

src/Bootstrap/Configurator.php

@@ -76,10 +76,13 @@ class Configurator
 	/** @var list<string|array<string, mixed>> */
 	protected array $configs = [];
 
+	/** @var array<string, mixed> */
+	private array $defaultParameters;
+
 
 	public function __construct()
 	{
-		$this->staticParameters = $this->getDefaultParameters();
+		$this->defaultParameters = $this->staticParameters = $this->getDefaultParameters();
 
 		if (class_exists(InstalledVersions::class) // back compatibility
 			&& InstalledVersions::isInstalled('nette/caching')
@@ -305,6 +308,9 @@ public function generateContainer(DI\Compiler $compiler): void
 		$loader = $this->createLoader();
 		$loader->setParameters($this->staticParameters);
 
+		// Defaults FIRST — overridable by user configs (e.g. wwwDir: %rootDir%/www in common.neon)
+		$compiler->addConfig(['parameters' => DI\Helpers::escape($this->defaultParameters)]);
+
 		foreach ($this->configs as $config) {
 			if (is_string($config)) {
 				$compiler->loadConfig($config, $loader);
@@ -313,7 +319,8 @@ public function generateContainer(DI\Compiler $compiler): void
 			}
 		}
 
-		$compiler->addConfig(['parameters' => DI\Helpers::escape($this->staticParameters)]);
+		$explicit = array_udiff_assoc($this->staticParameters, $this->defaultParameters, fn($a, $b) => $a === $b ? 0 : 1);
+		$compiler->addConfig(['parameters' => DI\Helpers::escape($explicit)]);
 		$compiler->setDynamicParameterNames(array_merge(array_keys($this->dynamicParameters), ['baseUrl']));
 
 		$builder = $compiler->getContainerBuilder();

tests/Bootstrap/Configurator.overrideDefaults.phpt

@@ -0,0 +1,63 @@
+<?php declare(strict_types=1);
+
+/**
+ * Test: default parameters (wwwDir, appDir, ...) are overridable by user configs,
+ *       while addStaticParameters() / setTempDirectory() remain authoritative.
+ */
+
+use Nette\Bootstrap\Configurator;
+use Tester\Assert;
+
+
+require __DIR__ . '/../bootstrap.php';
+
+
+// 1) Default wwwDir is overridable by neon config
+test('config overrides default wwwDir', function () {
+	$configurator = new Configurator;
+	$configurator->setTempDirectory(getTempDir());
+	$configurator->addConfig([
+		'parameters' => ['wwwDir' => '/from/config'],
+	]);
+	$container = $configurator->createContainer();
+	Assert::same('/from/config', $container->parameters['wwwDir']);
+});
+
+
+// 2) addStaticParameters() still wins over neon config (back-compat)
+test('addStaticParameters wins over config', function () {
+	$configurator = new Configurator;
+	$configurator->setTempDirectory(getTempDir());
+	$configurator->addStaticParameters(['wwwDir' => '/from/static']);
+	$configurator->addConfig([
+		'parameters' => ['wwwDir' => '/from/config'],
+	]);
+	$container = $configurator->createContainer();
+	Assert::same('/from/static', $container->parameters['wwwDir']);
+});
+
+
+// 3) setTempDirectory() still wins over neon config (back-compat)
+test('setTempDirectory wins over config', function () {
+	$tempDir = getTempDir();
+	$configurator = new Configurator;
+	$configurator->setTempDirectory($tempDir);
+	$configurator->addConfig([
+		'parameters' => ['tempDir' => '/from/config'],
+	]);
+	$container = $configurator->createContainer();
+	Assert::same($tempDir, $container->parameters['tempDir']);
+});
+
+
+// 4) Config-defined parameter referencing a default static parameter resolves correctly
+test('config can reference default parameter', function () {
+	$configurator = new Configurator;
+	$configurator->setTempDirectory(getTempDir());
+	$configurator->addStaticParameters(['rootDir' => '/my/root']);
+	$configurator->addConfig([
+		'parameters' => ['wwwDir' => '%rootDir%/www'],
+	]);
+	$container = $configurator->createContainer();
+	Assert::same('/my/root/www', $container->parameters['wwwDir']);
+});