fix pathing in loader

Author: hansl

packages/webpack/src/loader.ts

@@ -27,10 +27,11 @@ function _removeDecorators(fileName: string, source: string): string {
 
 
 function _replaceBootstrap(fileName: string, source: string, plugin: NgcWebpackPlugin) {
-  const dirName = path.dirname(fileName);
-  const entryModuleName = plugin.entryModule.split('#')[0] + '.ngfactory';
-  const entryModule = path.join(plugin.genDir, path.relative(dirName, entryModuleName));
-  const ngFactoryPath = './' + path.relative(dirName, entryModule);
+  const basePath = plugin.angularCompilerOptions.basePath;
+  const entryModuleFileName = plugin.entryModule.split('#')[0] + '.ngfactory';
+  const relativeEntryModulePath = path.relative(basePath, entryModuleFileName);
+  const fullEntryModulePath = path.resolve(plugin.genDir, relativeEntryModulePath);
+  const ngFactoryPath = './' + path.relative(path.dirname(fileName), fullEntryModulePath);
 
   return source
     .replace(/(import.*)\bplatformBrowserDynamic\b(.*\/)platform-browser-dynamic(\b.*)$/m,
@@ -48,27 +49,29 @@ export function ngcLoader(source: string) {
   if (plugin && plugin instanceof NgcWebpackPlugin) {
     const cb: any = this.async();
 
-    plugin.done.then(() => {
-      source = _removeDecorators(this.resource, source);
-      source = _replaceBootstrap(this.resource, source, plugin);
+    plugin.done
+      .then(() => {
+        source = _removeDecorators(this.resource, source);
+        source = _replaceBootstrap(this.resource, source, plugin);
 
-      const result = ts.transpileModule(source, {
-        compilerOptions: {
-          target: ts.ScriptTarget.ES5,
-          module: ts.ModuleKind.ES2015,
-        }
-      });
-
-      if (result.diagnostics && result.diagnostics.length) {
-        let message = '';
-        result.diagnostics.forEach(d => {
-          message += d.messageText + '\n';
+        const result = ts.transpileModule(source, {
+          compilerOptions: {
+            target: ts.ScriptTarget.ES5,
+            module: ts.ModuleKind.ES2015,
+          }
         });
-        cb(new Error(message));
-      }
 
-      cb(null, result.outputText, result.sourceMapText ? JSON.parse(result.sourceMapText) : null);
-    });
+        if (result.diagnostics && result.diagnostics.length) {
+          let message = '';
+          result.diagnostics.forEach(d => {
+            message += d.messageText + '\n';
+          });
+          cb(new Error(message));
+        }
+
+        cb(null, result.outputText, result.sourceMapText ? JSON.parse(result.sourceMapText) : null);
+      })
+      .catch(err => cb(err));
   } else {
     return ts.transpileModule(source, {
       compilerOptions: {