Track plugin changes and notify frontend

Summary: Watch source plugin folders and notify frontend that any of them changed. In subsequent diffs, we will start reloading plugins that changed.

Reviewed By: lblasa

Differential Revision: D39539443

fbshipit-source-id: 726916c0bce336a2c0179558526bcb1b74e35b93

desktop/scripts/start-flipper-server-dev.tsx

@@ -15,11 +15,10 @@ import {
   launchServer,
   prepareDefaultPlugins,
 } from './build-utils';
-import Watchman from './watchman';
 import isFB from './isFB';
 import yargs from 'yargs';
 import ensurePluginFoldersWatchable from './ensurePluginFoldersWatchable';
-import startWatchPlugins from './startWatchPlugins';
+import {Watchman} from 'flipper-pkg-lib';
 
 const argv = yargs
   .usage('yarn flipper-server [args]')
@@ -195,5 +194,4 @@ async function startWatchChanges() {
   await restartServer();
   // watch
   await startWatchChanges();
-  await startWatchPlugins();
 })();