From b9013853385d1c4d952f2cb6ecd544daaa4c25dd Mon Sep 17 00:00:00 2001
From: Joel Arvidsson <joel.arvidsson@klarna.com>
Date: Tue, 18 Sep 2018 19:01:00 -0700
Subject: [PATCH] Fix ignored --projectRoot/watchFolders arguments (#21165)

Summary:
Due to Kureev's cleanup in https://github.com/facebook/react-native/commit/c4a66a89a28152cd4b81e2b0f80ab3aac34d6872 some arguments are no longer properly passed to metro, but just the default values. This broke the `--projectRoot` and `--watchFolders` arguments used by storybook to change the bundle entrypoint.

This PR simply fixes the regression by assigning these values from argv instead of reading config defaults.

Related: the undocumented `REACT_NATIVE_APP_ROOT` env var is broken, not sure for how long, but I can fix it as a part of this PR or make a new one.
Pull Request resolved: https://github.com/facebook/react-native/pull/21165

Differential Revision: D9929642

Pulled By: hramos

fbshipit-source-id: 00485a0429bd4301de03e5cb455e928878c4ba8f
---
 server/runServer.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/server/runServer.js b/server/runServer.js
index eabd5c2da..b3859eb0a 100644
--- a/server/runServer.js
+++ b/server/runServer.js
@@ -58,6 +58,8 @@ async function runServer(args: Args, config: ConfigT) {
   config.server.port = args.port;
   config.reporter = reporter;
   config.resetCache = args.resetCache;
+  config.projectRoot = args.projectRoot;
+  config.watchFolders = args.watchFolders.slice(0);
   config.server.enhanceMiddleware = middleware =>
     middlewareManager.getConnectInstance().use(middleware);