symfony
diff --git a/‎UPGRADE-4.3.md
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diff --git a/‎UPGRADE-5.0.md
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diff --git a/‎src/Symfony/Bundle/FrameworkBundle/CHANGELOG.md
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diff --git a/‎src/Symfony/Bundle/FrameworkBundle/Command/AssetsInstallCommand.php
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+9-3Lines changed: 9 additions & 3 deletions b/‎src/Symfony/Bundle/FrameworkBundle/Command/AssetsInstallCommand.php
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+9-3Lines changed: 9 additions & 3 deletions
diff --git a/‎src/Symfony/Bundle/FrameworkBundle/Resources/config/console.xml
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@@ -5,3 +5,9 @@ Config
 ------
 
  * Deprecated using environment variables with `cannotBeEmpty()` if the value is validated with `validate()`
+
+FrameworkBundle
+---------------
+
+ * Not passing the project directory to the constructor of the `AssetsInstallCommand` is deprecated. This argument will
+   be mandatory in 5.0.
@@ -127,6 +127,8 @@ Form
 FrameworkBundle
 ---------------
 
+ * The project dir argument of the constructor of `AssetsInstallCommand` is required.
+
  * Removed support for `bundle:controller:action` syntax to reference controllers. Use `serviceOrFqcn::method`
    instead where `serviceOrFqcn` is either the service ID when using controllers as services or the FQCN of the controller.
 
 
@@ -4,6 +4,8 @@ CHANGELOG
 4.3.0
 -----
 
+ * Not passing the project directory to the constructor of the `AssetsInstallCommand` is deprecated. This argument will
+   be mandatory in 5.0.
  * Added `ControllerTrait::isFormValid()`
 
 4.2.0
 
@@ -42,12 +42,18 @@ class AssetsInstallCommand extends Command
     protected static $defaultName = 'assets:install';
 
     private $filesystem;
+    private $projectDirectory;
 
-    public function __construct(Filesystem $filesystem)
+    public function __construct(Filesystem $filesystem, string $projectDirectory = null)
     {
         parent::__construct();
 
+        if (null === $projectDirectory) {
+            @trigger_error(sprintf('Not passing the project directory to the constructor of %s is deprecated since Symfony 4.3 and will not be supported in 5.0.', __CLASS__), E_USER_DEPRECATED);
+        }
+
         $this->filesystem = $filesystem;
+        $this->projectDirectory = $projectDirectory;
     }
 
     /**
@@ -260,11 +266,11 @@ private function getPublicDirectory(ContainerInterface $container)
     {
         $defaultPublicDir = 'public';
 
-        if (!$container->hasParameter('kernel.project_dir')) {
+        if (null === $this->projectDirectory && !$container->hasParameter('kernel.project_dir')) {
             return $defaultPublicDir;
         }
 
-        $composerFilePath = $container->getParameter('kernel.project_dir').'/composer.json';
+        $composerFilePath = ($this->projectDirectory ?? $container->getParameter('kernel.project_dir')).'/composer.json';
 
         if (!file_exists($composerFilePath)) {
             return $defaultPublicDir;
 
@@ -19,6 +19,7 @@
 
         <service id="console.command.assets_install" class="Symfony\Bundle\FrameworkBundle\Command\AssetsInstallCommand">
             <argument type="service" id="filesystem" />
+            <argument>%kernel.project_dir%</argument>
             <tag name="console.command" command="assets:install" />
         </service>