rnw] ReactNativeFlipperExample

Summary:
This change is the direct results of doing the following:

    npx react-native-windows-init --overwrite

Notes: ignore the format warnings below. In this case, the ordering of includes does matter. Missing license is for auto-generated files, so ignore too.

Reviewed By: aigoncharov

Differential Revision: D36775215

fbshipit-source-id: 1cd00ff2bfc258c8505e97dcdbd9cb4365c4acfb

react-native/ReactNativeFlipperExample/metro.config.js

@@ -7,7 +7,27 @@
  * @format
  */
 
+const fs = require('fs');
+const path = require('path');
+const exclusionList = require('metro-config/src/defaults/exclusionList');
+
+const rnwPath = fs.realpathSync(
+  path.resolve(require.resolve('react-native-windows/package.json'), '..'),
+);
+
 module.exports = {
+  resolver: {
+    blockList: exclusionList([
+      // This stops "react-native run-windows" from causing the metro server to crash if its already running
+      new RegExp(
+        `${path.resolve(__dirname, 'windows').replace(/[/\\]/g, '/')}.*`,
+      ),
+      // This prevents "react-native run-windows" from hitting: EBUSY: resource busy or locked, open msbuild.ProjectImports.zip or other files produced by msbuild
+      new RegExp(`${rnwPath}/build/.*`),
+      new RegExp(`${rnwPath}/target/.*`),
+      /.*\.ProjectImports\.zip/,
+    ]),
+  },
   transformer: {
     getTransformOptions: async () => ({
       transform: {