Upgrade to 2.18

.editorconfig

@@ -13,22 +13,8 @@ insert_final_newline = true
 indent_style = space
 indent_size = 2
 
-[*.js]
-indent_style = space
-indent_size = 2
-
 [*.hbs]
 insert_final_newline = false
-indent_style = space
-indent_size = 2
-
-[*.css]
-indent_style = space
-indent_size = 2
-
-[*.html]
-indent_style = space
-indent_size = 2
 
 [*.{diff,md}]
 trim_trailing_whitespace = false

.eslintrc.js

@@ -0,0 +1,56 @@
+module.exports = {
+  root: true,
+  parserOptions: {
+    ecmaVersion: 2017,
+    sourceType: 'module'
+  },
+  plugins: [
+    'ember'
+  ],
+  extends: [
+    'eslint:recommended',
+    'plugin:ember/recommended'
+  ],
+  env: {
+    browser: true
+  },
+  rules: {
+  },
+  overrides: [
+    // node files
+    {
+      files: [
+        'index.js',
+        'testem.js',
+        'ember-cli-build.js',
+        'config/**/*.js',
+        'tests/dummy/config/**/*.js'
+      ],
+      excludedFiles: [
+        'app/**',
+        'addon/**'
+      ],
+      parserOptions: {
+        sourceType: 'script',
+        ecmaVersion: 2015
+      },
+      env: {
+        browser: false,
+        node: true
+      },
+      plugins: ['node'],
+      rules: Object.assign({}, require('eslint-plugin-node').configs.recommended.rules, {
+        // add your custom rules and overrides for node files here
+      })
+    },
+
+    // test files
+    {
+      files: ['tests/**/*.js'],
+      excludedFiles: ['tests/dummy/**/*.js'],
+      env: {
+        embertest: true
+      }
+    }
+  ]
+};

.gitignore

@@ -1,4 +1,4 @@
-# See http://help.github.com/ignore-files/ for more about ignoring files.
+# See https://help.github.com/ignore-files/ for more about ignoring files.
 
 # compiled output
 /dist
@@ -13,5 +13,11 @@
 /connect.lock
 /coverage/*
 /libpeerconnection.log
-npm-debug.log
+npm-debug.log*
+yarn-error.log
 testem.log
+
+# ember-try
+.node_modules.ember-try/
+bower.json.ember-try
+package.json.ember-try

.npmignore

@@ -7,10 +7,15 @@
 .bowerrc
 .editorconfig
 .ember-cli
+.eslintrc.js
 .gitignore
-.jshintrc
 .watchmanconfig
 .travis.yml
 bower.json
 ember-cli-build.js
-testem.json
+testem.js
+
+# ember-try
+.node_modules.ember-try/
+bower.json.ember-try
+package.json.ember-try

.travis.yml

@@ -1,34 +1,46 @@
 ---
 language: node_js
 node_js:
-  - "0.12"
+  # we recommend testing addons with the same minimum supported node version as Ember CLI
+  # so that your addon works for all apps
+  - "4"
 
 sudo: false
+dist: trusty
+
+addons:
+  chrome: stable
 
 cache:
   directories:
-    - node_modules
+    - $HOME/.npm
 
 env:
-  - EMBER_TRY_SCENARIO=default
-  - EMBER_TRY_SCENARIO=ember-release
-  - EMBER_TRY_SCENARIO=ember-beta
-  - EMBER_TRY_SCENARIO=ember-canary
+  global:
+    # See https://git.io/vdao3 for details.
+    - JOBS=1
+  matrix:
+    # we recommend new addons test the current and previous LTS
+    # as well as latest stable release (bonus points to beta/canary)
+    - EMBER_TRY_SCENARIO=ember-lts-2.12
+    - EMBER_TRY_SCENARIO=ember-lts-2.16
+    - EMBER_TRY_SCENARIO=ember-release
+    - EMBER_TRY_SCENARIO=ember-beta
+    - EMBER_TRY_SCENARIO=ember-canary
+    - EMBER_TRY_SCENARIO=ember-default
 
 matrix:
   fast_finish: true
   allow_failures:
     - env: EMBER_TRY_SCENARIO=ember-canary
 
 before_install:
-  - export PATH=/usr/local/phantomjs-2.0.0/bin:$PATH
-  - "npm config set spin false"
-  - "npm install -g npm@^2"
-
-install:
-  - npm install -g bower
-  - npm install
-  - bower install
+  - npm config set spin false
+  - npm install -g npm@4
+  - npm --version
 
 script:
-  - ember try $EMBER_TRY_SCENARIO test
+  - npm run lint:js
+  # Usually, it's ok to finish the test scenario without reverting
+  #  to the addon's original dependency state, skipping "cleanup".
+  - node_modules/.bin/ember try:one $EMBER_TRY_SCENARIO --skip-cleanup

LICENSE.md

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016
+Copyright (c) 2018
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 

README.md

@@ -6,23 +6,23 @@ The purpose of this addon is to provide style to the [official ember tutorial](h
 
 ## Installation
 
-* `git clone` this repository
+* `git clone <repository-url>` this repository
+* `cd my-addon`
 * `npm install`
-* `bower install`
 
 ## Running
 
-* `ember server`
-* Visit your app at http://localhost:4200.
+* `ember serve`
+* Visit your app at [http://localhost:4200](http://localhost:4200).
 
 ## Running Tests
 
-* `npm test` (Runs `ember try:testall` to test your addon against multiple Ember versions)
+* `npm test` (Runs `ember try:each` to test your addon against multiple Ember versions)
 * `ember test`
 * `ember test --server`
 
 ## Building
 
 * `ember build`
 
-For more information on using ember-cli, visit [http://www.ember-cli.com/](http://www.ember-cli.com/).
+For more information on using ember-cli, visit [https://ember-cli.com/](https://ember-cli.com/).

config/ember-try.js

@@ -1,10 +1,19 @@
-/*jshint node:true*/
 module.exports = {
   scenarios: [
     {
-      name: 'default',
-      bower: {
-        dependencies: { }
+      name: 'ember-lts-2.12',
+      npm: {
+        devDependencies: {
+          'ember-source': '~2.12.0'
+        }
+      }
+    },
+    {
+      name: 'ember-lts-2.16',
+      npm: {
+        devDependencies: {
+          'ember-source': '~2.16.0'
+        }
       }
     },
     {
@@ -16,6 +25,11 @@ module.exports = {
         resolutions: {
           'ember': 'release'
         }
+      },
+      npm: {
+        devDependencies: {
+          'ember-source': null
+        }
       }
     },
     {
@@ -27,6 +41,11 @@ module.exports = {
         resolutions: {
           'ember': 'beta'
         }
+      },
+      npm: {
+        devDependencies: {
+          'ember-source': null
+        }
       }
     },
     {
@@ -38,6 +57,17 @@ module.exports = {
         resolutions: {
           'ember': 'canary'
         }
+      },
+      npm: {
+        devDependencies: {
+          'ember-source': null
+        }
+      }
+    },
+    {
+      name: 'ember-default',
+      npm: {
+        devDependencies: {}
       }
     }
   ]

config/environment.js

@@ -1,4 +1,3 @@
-/*jshint node:true*/
 'use strict';
 
 module.exports = function(/* environment, appConfig */) {

ember-cli-build.js

@@ -1,9 +1,9 @@
-/*jshint node:true*/
-/* global require, module */
-var EmberAddon = require('ember-cli/lib/broccoli/ember-addon');
+'use strict';
+
+const EmberAddon = require('ember-cli/lib/broccoli/ember-addon');
 
 module.exports = function(defaults) {
-  var app = new EmberAddon(defaults, {
+  let app = new EmberAddon(defaults, {
     // Add options here
   });
 

index.js

@@ -1,4 +1,3 @@
-/* jshint node: true */
 'use strict';
 
 module.exports = {