feat(feature): check if mentioned app exists

Author: manfredsteyer

.gitignore

@@ -37,3 +37,5 @@ testem.log
 # System Files
 .DS_Store
 Thumbs.db
+
+/*.tgz

libs/ddd/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@angular-architects/ddd",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "author": "Manfred Steyer",
   "description": "Nx plugin for structuring a monorepo with domains and layers",
   "repository": {

libs/ddd/src/schematics/feature/index.ts

@@ -156,6 +156,13 @@ export default function(options: FeatureOptions): Rule {
     const appFolderName = strings.dasherize(appName);
     const appModulePath = `apps/${appFolderName}/src/app/app.module.ts`;
 
+    if (options.app) {
+      const requiredAppModulePath = `apps/${appFolderName}/src/app/app.module.ts`;
+      if (!host.exists(requiredAppModulePath)) {
+        throw new Error(`Specified app ${options.app} does not exist: ${requiredAppModulePath} expected!`);
+      }
+    }
+
     const domainTemplates = apply(url('./files/forDomain'), [
       filterTemplates(options),
       template({ ...strings, ...options, workspaceName }),