Prepend passed sourceExts to default ones and pass them to metro

Fixes react-native start not using passed --sourceExts facebook#21854
elyalvarado · Oct 18, 2018 · 838bd9f · 838bd9f
1 parent 99471f8
commit 838bd9f
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/local-cli/server/runServer.js b/local-cli/server/runServer.js
@@ -70,6 +70,11 @@ async function runServer(args: Args, config: ConfigT) {
   config.server.enhanceMiddleware = middleware =>
     middlewareManager.getConnectInstance().use(middleware);
 
+  if(args.sourceExts !== config.resolver.sourceExts) {
+    // $FlowFixMe Metro configuration is immutable.
+    config.resolver.sourceExts = args.sourceExts.concat(config.resolver.sourceExts);
+  }
+
   const serverInstance = await Metro.runServer(config, {
     host: args.host,
     secure: args.https,