ACMS-3507: Added switchSiteContext method to BaseDrush command.

src/Config/DefaultDrushConfig.php

@@ -3,7 +3,7 @@
 namespace Acquia\Drupal\RecommendedSettings\Config;
 
 use Consolidation\Config\Config;
-use Drush\Config\DrushConfig;
+use Consolidation\Config\ConfigInterface;
 
 /**
  * The configuration for settings.
@@ -16,7 +16,7 @@ class DefaultDrushConfig extends Config {
    * @param string[] $data
    *   Data array, if available.
    */
-  public function __construct(DrushConfig $config) {
+  public function __construct(ConfigInterface $config) {
     $uri = $config->get("options.uri") ?? "default";
     $config->set('repo.root', $config->get("runtime.project"));
     $config->set('docroot', $config->get("options.root"));

src/Drush/Commands/BaseDrushCommands.php

@@ -41,10 +41,7 @@ class BaseDrushCommands extends DrushCommands implements ConfigAwareInterface, L
    */
   #[CLI\Hook(type: HookManager::INITIALIZE)]
   public function init(InputInterface $input, AnnotationData $annotationData): void {
-    $config = new DefaultDrushConfig($this->getConfig());
-    $configInitializer = new ConfigInitializer($config);
-    $config = $configInitializer->loadAllConfig()->processConfig();
-    $this->setConfig($config);
+    $this->switchSiteContext("default");
   }
 
   /**
@@ -101,4 +98,21 @@ protected function invokeCommand(string $command_name, array $args = []): void {
     });
   }
 
+  /**
+   * Sets multisite context by settings site-specific config values.
+   *
+   * @param string $site_name
+   *   The name of a multisite, e.g., if docroot/sites/example.com is the site,
+   *   $site_name would be example.com.
+   */
+  public function switchSiteContext(string $site_name) {
+    $this->logger->debug("Switching site context to <comment>$site_name</comment>.");
+    $config = new DefaultDrushConfig($this->getConfig());
+    $configInitializer = new ConfigInitializer($config);
+    $config = $configInitializer->loadAllConfig()->processConfig();
+    $config->set('drush.uri', $site_name);
+    $config->set('site', $site_name);
+    $this->setConfig($config);
+  }
+
 }