Add an extraCliArgs option to the emberNew helper

This makes it possible to pass any extra arguments to ember-cli, which makes it possible to test more blueprint scenarios.

Author: Windvis

README.md

@@ -174,6 +174,7 @@ Create a new Ember.js app or addon in the current working directory.
 
 - `{Object} [options]` optional parameters
 - `{String} [options.target='app']` the type of project to create (`app`, `addon` or `in-repo-addon`)
+- `{string[]} [options.extraCliArgs=[]]` any extra arguments you want to pass to ember-cli
 
 **Returns:** `{Promise}`
 

lib/ember-new.js

@@ -12,6 +12,7 @@ const rethrowFromErrorLog = require('./rethrow-from-error-log');
  *
  * @param {Object} [options] optional parameters
  * @param {String} [options.target='app'] the type of project to create (`app`, `addon` or `in-repo-addon`)
+ * @param {string[]} [options.extraCliArgs] any extra arguments you want to pass to ember-cli
  * @returns {Promise}
  */
 module.exports = function(options) {
@@ -22,12 +23,13 @@ module.exports = function(options) {
 
   let projectName = isAddon ? 'my-addon' : 'my-app';
   let command = isAddon ? 'addon' : 'new';
+  let extraCliArgs = Array.isArray(options.extraCliArgs) ? options.extraCliArgs : [];
 
   let cliOptions = {
     disableDependencyChecker: true
   };
 
-  return ember([command, projectName, '--skip-npm', '--skip-bower'], cliOptions)
+  return ember([command, projectName, '--skip-npm', '--skip-bower', ...extraCliArgs], cliOptions)
     .then(generateInRepoAddon(target))
     .then(linkAddon)
     .catch(rethrowFromErrorLog);

tests/acceptance/helpers-test.js

@@ -14,7 +14,7 @@ const expect = chai.expect;
 const dir = chai.dir;
 const file = chai.file;
 
-describe('Acceptance: helpers', function() {
+describe('Acceptance: helpers', function () {
   setupTestHooks(this);
 
   describe('emberNew', () => {
@@ -33,6 +33,14 @@ describe('Acceptance: helpers', function() {
           expect(fs.existsSync(addonPath)).to.equal(true);
         });
     });
+
+    it('emberNew - extraCliArgs', () => {
+      return emberNew({ extraCliArgs: ['--typescript', '--no-welcome']})
+        .then(() => {
+          const appPath = path.resolve(process.cwd(), 'app');
+          expect(fs.existsSync(appPath)).to.equal(true);
+        });
+    });
   });
 
   describe('emberGenerateDestroy', () => {