From 98411f1642715bc678661403f9421ce18f6f5347 Mon Sep 17 00:00:00 2001
From: Mart?n Bigio <martinb@fb.com>
Date: Fri, 25 Mar 2016 08:44:38 -0700
Subject: [PATCH] Avoid getting `entryFilePath` on HMR codepath

Summary: The HMR codepath is currently broken because of a recent change that tries to compute the absolute entryFile path (needed for RAM Bundling). HMR Bundler's bundles are special as they contains a single file (the file that was transformed). However, for performance reasons we recycle an existing resolution response which contains the polyfills and the module system modules.

Reviewed By: sam-swarr

Differential Revision: D3098069

fb-gh-sync-id: 23d61aa304cd6f59d4df4840965f5eedda05dc31
fbshipit-source-id: 23d61aa304cd6f59d4df4840965f5eedda05dc31
---
 packager/react-packager/src/Bundler/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packager/react-packager/src/Bundler/index.js b/packager/react-packager/src/Bundler/index.js
index 52bb3ad27..2fd484c0b 100644
--- a/packager/react-packager/src/Bundler/index.js
+++ b/packager/react-packager/src/Bundler/index.js
@@ -385,7 +385,7 @@ class Bundler {
 
       // get entry file complete path (`entryFile` is relative to roots)
       let entryFilePath;
-      if (response.dependencies.length > 0) {
+      if (response.dependencies.length > 1) { // skip HMR requests
         const numModuleSystemDependencies =
           this._resolver.getModuleSystemDependencies({dev, unbundle}).length;