clean install

web/modules/migrate_tools/src/MigrateIncludeHandler.php

@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types = 1);
+
+namespace Drupal\migrate_tools;
+
+use Drupal\Component\Plugin\PluginManagerInterface;
+use Drupal\Component\Utility\NestedArray;
+
+/**
+ * Merged included shared migrate configuration.
+ */
+final class MigrateIncludeHandler {
+
+  private PluginManagerInterface $sharedConfiguration;
+
+  public function __construct(PluginManagerInterface $shared_config) {
+    $this->sharedConfiguration = $shared_config;
+  }
+
+  /**
+   * Include the shared configuration.
+   */
+  public function include(array &$migration): void {
+    // Handle one or multiple includes.
+    $includes = (array) $migration['include'];
+    foreach ($includes as $include) {
+      $definition = $this->sharedConfiguration->getDefinition($include);
+      // Remove the shared configuration plugin metadata.
+      unset($definition['id'], $definition['class'], $definition['provider']);
+      $migration = NestedArray::mergeDeep($definition, $migration);
+    }
+  }
+
+}