Add PluginStore.copyFrom method

packages/lib-core/src/runtime/PluginStore.ts

@@ -375,4 +375,35 @@ export class PluginStore implements PluginStoreInterface {
 
     return referencedModule;
   }
+
+  /**
+   * Create new `PluginStore` with state copied from the source `PluginStore`.
+   *
+   * @remarks
+   *
+   * Does not copy subscribed event {@link listeners} and {@link pendingPromises}.
+   */
+  static copyFrom(source: PluginStore): PluginStore {
+    const target = new PluginStore({
+      autoEnableLoadedPlugins: source.options.autoEnableLoadedPlugins,
+      loader: source.loader,
+    });
+
+    source.pendingPlugins.forEach((plugin, name) => {
+      target.pendingPlugins.set(name, { ...plugin });
+    });
+
+    source.loadedPlugins.forEach((plugin, name) => {
+      target.loadedPlugins.set(name, { ...plugin });
+    });
+
+    source.failedPlugins.forEach((plugin, name) => {
+      target.failedPlugins.set(name, { ...plugin });
+    });
+
+    target.extensions = [...source.extensions];
+    target.featureFlags = { ...source.featureFlags };
+
+    return target;
+  }
 }

reports/lib-core.api.md

@@ -254,6 +254,7 @@ export class PluginStore implements PluginStoreInterface {
     protected addLoadedPlugin(manifest: PluginManifest, loadedExtensions: LoadedExtension[], entryModule?: PluginEntryModule): void;
     // (undocumented)
     protected addPendingPlugin(manifest: PluginManifest): void;
+    static copyFrom(source: PluginStore): PluginStore;
     // (undocumented)
     disablePlugins(pluginNames: string[], disableReason?: string): void;
     // (undocumented)