Plugin Marketplace state refresh and cache

Summary:
Separate dispatcher for periodic refreshing available plugins data from the Marketplace backend and caching it locally.

The plugin auto update downloader subscribes to these state refreshes and automatically schedules plugin update downloads when required.

Reviewed By: passy

Differential Revision: D25360897

fbshipit-source-id: 5b6d95b63ff47b8ae9ad8b12e2480d1fed524ca5

desktop/app/src/dispatcher/fb-stubs/pluginMarketplace.tsx

@@ -0,0 +1,12 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+export default () => {
+  // Marketplace is not implemented in public version of Flipper
+};

desktop/app/src/dispatcher/index.tsx

@@ -21,6 +21,7 @@ import user from './user';
 import pluginManager from './pluginManager';
 import reactNative from './reactNative';
 import pluginAutoUpdate from './fb-stubs/pluginAutoUpdate';
+import pluginMarketplace from './fb-stubs/pluginMarketplace';
 
 import {Logger} from '../fb-interfaces/Logger';
 import {Store} from '../reducers/index';
@@ -33,7 +34,6 @@ export default function (store: Store, logger: Logger): () => Promise<void> {
   if (process.env.NODE_ENV === 'development') {
     remote.globalShortcut.unregisterAll();
   }
-
   const dispatchers: Array<Dispatcher> = [
     application,
     store.getState().settingsState.enableAndroid ? androidDevice : null,
@@ -48,6 +48,7 @@ export default function (store: Store, logger: Logger): () => Promise<void> {
     pluginManager,
     reactNative,
     pluginAutoUpdate,
+    pluginMarketplace,
   ].filter(notNull);
   const globalCleanup = dispatchers
     .map((dispatcher) => dispatcher(store, logger))