feat(cli): add a --prefix option to generate module

when set, --prefix=foo will add a ``export const ModulePrefix = 'foo';`` to the
.module.ts file

see angular#3452

Author: nlm-pro

packages/angular-cli/blueprints/module/files/__path__/__name__.module.ts

@@ -2,6 +2,9 @@ import { NgModule } from '@angular/core';
 import { CommonModule } from '@angular/common';<% if (routing) { %>
 import { <%= classifiedModuleName %>RoutingModule } from './<%= dasherizedModuleName %>-routing.module';<% } %>
 
+<% if (prefix) { %>
+export const ModulePrefix = '<%= prefix %>';
+<% } %>
 @NgModule({
   imports: [
     CommonModule<% if (routing) { %>,

packages/angular-cli/blueprints/module/index.js

@@ -8,7 +8,8 @@ module.exports = {
 
   availableOptions: [
     { name: 'spec', type: Boolean },
-    { name: 'routing', type: Boolean, default: false }
+    { name: 'routing', type: Boolean, default: false },
+    { name: 'prefix', type: String, default: null}
   ],
 
   normalizeEntityName: function (entityName) {
@@ -27,7 +28,8 @@ module.exports = {
     return {
       dynamicPath: this.dynamicPath.dir,
       spec: options.spec,
-      routing: options.routing
+      routing: options.routing,
+      prefix: options.prefix
     };
   },
 

tests/acceptance/generate-module.spec.js

@@ -2,6 +2,8 @@
 
 const ng = require('../helpers/ng');
 const tmp = require('../helpers/tmp');
+var fs = require('fs-extra');
+
 
 const existsSync = require('exists-sync');
 const expect = require('chai').expect;
@@ -36,6 +38,7 @@ describe('Acceptance: ng generate module', function () {
       expect(existsSync(path.join(testPath, 'my-module', 'my-module.module.ts'))).to.equal(true);
       expect(existsSync(path.join(testPath, 'my-module', 'my-module.module.spec.ts'))).to.equal(false);
       expect(existsSync(path.join(testPath, 'my-module', 'my-module.component.ts'))).to.equal(false);
+      
     });
   });
 
@@ -55,6 +58,15 @@ describe('Acceptance: ng generate module', function () {
     });
   });
 
+   it('ng generate module my-module --prefix=my', function () {
+    return ng(['generate', 'module', 'my-module', '--prefix=my']).then(() => {
+      expect(existsSync(path.join(testPath, 'my-module', 'my-module.module.ts'))).to.equal(true);
+      var contents = fs.readFileSync(path.join(testPath, 'my-module', 'my-module.module.ts'), 'utf8');
+      expect(contents.indexOf('export const ModulePrefix = \'my\';') === -1).to.equal(false);
+      expect(existsSync(path.join(testPath, 'my-module', 'my-module.module.spec.ts'))).to.equal(false);
+      expect(existsSync(path.join(testPath, 'my-module', 'my-module.component.ts'))).to.equal(false);    });
+  });
+
   it('ng generate module TwoWord', function () {
     return ng(['generate', 'module', 'TwoWord']).then(() => {
       expect(existsSync(path.join(testPath, 'two-word', 'two-word.module.ts'))).to.equal(true);