Split flipper-plugin package

Summary:
flipper-server-companion depends on flipper-plugin. flipper-plugin includes dependencies that run only in a browser. Splitting flipper-plugin into core and browser packages helps to avoid including browser-only dependencies into flipper-server bundle.
As a result, bundle size could be cut in half. Subsequently, RSS usage drops as there is twice as less code to process for V8.

Note: it currently breaks external flipper-data-source package. It will be restored in subsequent diffs

Reviewed By: lblasa

Differential Revision: D38658285

fbshipit-source-id: 751b11fa9f3a2d938ce166687b8310ba8b059dee

desktop/flipper-plugin-core/src/index.tsx

@@ -0,0 +1,111 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+// Dummy exports to support running plugin code in a headless context.
+// We do not want to bundle real code that is going to be used in a browser context to decrease the bundle size.
+// Yet some parts of the browser-only code is being evaluated at plugin import, not when it is being rendered.
+// Expand the list of stubs as needed when we onboard more and more headless plugins
+export const theme = {};
+export const styled = () => () => ({});
+
+export {produce, Draft} from 'immer';
+
+import * as TestUtilites from './test-utils/test-utils';
+export const TestUtils = TestUtilites;
+export {StartPluginOptions as _StartPluginOptions} from './test-utils/test-utils';
+
+import './plugin/PluginBase';
+
+export {BasePluginInstance as _BasePluginInstance} from './plugin/PluginBase';
+export {
+  SandyPluginInstance as _SandyPluginInstance,
+  PluginClient,
+  PluginFactory as _PluginFactory,
+  RealFlipperClient as _RealFlipperClient,
+} from './plugin/Plugin';
+export {
+  Device,
+  DeviceLogListener,
+  DevicePluginClient,
+  CrashLogListener,
+  SandyDevicePluginInstance as _SandyDevicePluginInstance,
+  DevicePluginFactory as _DevicePluginFactory,
+} from './plugin/DevicePlugin';
+export {
+  SandyPluginDefinition as _SandyPluginDefinition,
+  FlipperPluginInstance,
+  FlipperPluginModule as _FlipperPluginModule,
+  FlipperDevicePluginModule as _FlipperDevicePluginModule,
+} from './plugin/SandyPluginDefinition';
+
+export {
+  DataSource,
+  DataSourceView as _DataSourceView,
+  DataSourceOptionKey as _DataSourceOptionKey,
+  DataSourceOptions as _DataSourceOptions,
+} from './data-source/DataSource';
+export {createDataSource} from './state/createDataSource';
+
+export {
+  createState,
+  Atom,
+  isAtom,
+  ReadOnlyAtom as _ReadOnlyAtom,
+  AtomValue as _AtomValue,
+} from './state/atom';
+export {
+  setBatchedUpdateImplementation as _setBatchedUpdateImplementation,
+  batch,
+} from './state/batch';
+export {
+  FlipperLib,
+  getFlipperLib,
+  setFlipperLibImplementation as _setFlipperLibImplementation,
+  tryGetFlipperLibImplementation as _tryGetFlipperLibImplementation,
+  FileDescriptor,
+  FileEncoding,
+  RemoteServerContext,
+  DownloadFileResponse,
+} from './plugin/FlipperLib';
+export {
+  MenuEntry,
+  NormalizedMenuEntry,
+  buildInMenuEntries as _buildInMenuEntries,
+  DefaultKeyboardAction,
+} from './plugin/MenuEntry';
+export {Notification} from './plugin/Notification';
+export {CreatePasteArgs, CreatePasteResult} from './plugin/Paste';
+
+export {Idler} from './utils/Idler';
+
+export {
+  makeShallowSerializable as _makeShallowSerializable,
+  deserializeShallowObject as _deserializeShallowObject,
+} from './utils/shallowSerialization';
+
+import * as path from './utils/path';
+export {path};
+export {safeStringify} from './utils/safeStringify';
+export {stubLogger as _stubLogger} from './utils/Logger';
+
+export {
+  sleep,
+  timeout,
+  createControlledPromise,
+  uuid,
+  DeviceOS,
+  DeviceType,
+  DeviceLogEntry,
+  DeviceLogLevel,
+  Logger,
+  CrashLog,
+  ServerAddOn,
+  ServerAddOnPluginConnection,
+  FlipperServerForServerAddOn,
+} from 'flipper-common';