packager: clear cache

Reviewed By: davidaurelio

Differential Revision: D4746429

fbshipit-source-id: 1a49a4b6db75658749346f0fd94dad68ff084203

packager/src/node-haste/index.js

@@ -71,6 +71,8 @@ type Options = {
   watch: boolean,
 };
 
+const JEST_HASTE_MAP_CACHE_BREAKER = 1;
+
 class DependencyGraph extends EventEmitter {
 
   _opts: Options;
@@ -104,7 +106,7 @@ class DependencyGraph extends EventEmitter {
       ignorePattern: {test: opts.ignoreFilePath},
       maxWorkers: opts.maxWorkerCount,
       mocksPattern: '',
-      name: 'react-native-packager',
+      name: 'react-native-packager-' + JEST_HASTE_MAP_CACHE_BREAKER,
       platforms: Array.from(opts.platforms),
       providesModuleNodeModules: opts.providesModuleNodeModules,
       resetCache: opts.resetCache,