Pass transformOptions to getShallowDependencies.

Summary:We weren't passing `transformOptions` to `getShallowDependencies`, and therefore, when this method was called on a module, it would bust the cache and cause a retransform of the file. This was resulting in a complete retransforming of all files when the HMR Client connected to the packager.
Closes https://github.com/facebook/react-native/pull/6843

Differential Revision: D3145306

Pulled By: martinbigio

fb-gh-sync-id: 3619c27801b2fc07b758fafed47fcc892bb8e6db
fbshipit-source-id: 3619c27801b2fc07b758fafed47fcc892bb8e6db

react-packager/src/Bundler/index.js

@@ -426,8 +426,33 @@ class Bundler {
     this._cache.invalidate(filePath);
   }
 
-  getShallowDependencies(entryFile) {
-    return this._resolver.getShallowDependencies(entryFile);
+  getShallowDependencies({
+    entryFile,
+    platform,
+    dev = true,
+    minify = !dev,
+    hot = false,
+    generateSourceMaps = false,
+  }) {
+    return this.getTransformOptions(
+      entryFile,
+      {
+        dev,
+        platform,
+        hot,
+        generateSourceMaps,
+        projectRoots: this._projectRoots,
+      },
+    ).then(transformSpecificOptions => {
+      const transformOptions = {
+        minify,
+        dev,
+        platform,
+        transform: transformSpecificOptions,
+      };
+
+      return this._resolver.getShallowDependencies(entryFile, transformOptions);
+    });
   }
 
   stat(filePath) {

react-packager/src/Resolver/index.js

@@ -120,8 +120,8 @@ class Resolver {
     });
   }
 
-  getShallowDependencies(entryFile) {
-    return this._depGraph.getShallowDependencies(entryFile);
+  getShallowDependencies(entryFile, transformOptions) {
+    return this._depGraph.getShallowDependencies(entryFile, transformOptions);
   }
 
   stat(filePath) {

react-packager/src/Server/index.js

@@ -254,8 +254,15 @@ class Server {
     return this._bundler.hmrBundle(modules, host, port);
   }
 
-  getShallowDependencies(entryFile) {
-    return this._bundler.getShallowDependencies(entryFile);
+  getShallowDependencies(options) {
+    return Promise.resolve().then(() => {
+      if (!options.platform) {
+        options.platform = getPlatformExtension(options.entryFile);
+      }
+
+      const opts = dependencyOpts(options);
+      return this._bundler.getShallowDependencies(opts);
+    });
   }
 
   getModuleForPath(entryFile) {