[Packager] Add 'assetExts' to GlobalConfig

Author: aleclarson

packager/packager.js

@@ -32,6 +32,7 @@ if (!fs.existsSync(path.resolve(__dirname, '..', 'node_modules'))) {
 
 var chalk = require('chalk');
 var connect = require('connect');
+var globalConfig = require('./react-packager/src/GlobalConfig');
 var ReactPackager = require('./react-packager');
 var blacklist = require('./blacklist.js');
 var checkNodeVersion = require('./checkNodeVersion');
@@ -197,7 +198,7 @@ function getAppMiddleware(options) {
     cacheVersion: '2',
     transformModulePath: transformerPath,
     assetRoots: assetRoots,
-    assetExts: ['png', 'jpeg', 'jpg'],
+    assetExts: globalConfig.assetExts,
     polyfillModuleNames: [
       require.resolve(
         '../Libraries/JavaScriptAppEngine/polyfills/document.js'

packager/react-packager/src/GlobalConfig/index.js

@@ -45,7 +45,7 @@ GlobalConfig.prototype = {
       json = {};
     }
 
-    // TODO: Set properties here with values taken from `json`
+    this.assetExts = json.assetExts || ['png', 'jpeg', 'jpg'];
 
     log.moat(1);
     log.format(this, { label: 'Global config: ', unlimited: true });