Pass plugins via ipc instead of env to fix loading of plugins on Windows

Summary: Fixed the issue with empty plugin list on Windows because of env var length limit

Reviewed By: passy

Differential Revision: D19411466

fbshipit-source-id: 7fa390f7dd342e23e965b2135fbeb8e88e5857ef

static/index.js

@@ -111,7 +111,9 @@ compilePlugins(
   pluginPaths,
   path.join(flipperDir, 'plugins'),
 ).then(dynamicPlugins => {
-  process.env.PLUGINS = JSON.stringify(dynamicPlugins);
+  ipcMain.on('get-dynamic-plugins', event => {
+    event.returnValue = dynamicPlugins;
+  });
   pluginsCompiled = true;
   tryCreateWindow();
 });