Bump from ember 3.10 to 3.28 using ember-cli-update

.gitignore

@@ -12,6 +12,7 @@
 /.env*
 /.pnp*
 /.sass-cache
+/.eslintcache
 /connect.lock
 /coverage/
 /libpeerconnection.log

.npmignore

@@ -10,9 +10,13 @@
 /.editorconfig
 /.ember-cli
 /.env*
+/.eslintcache
 /.eslintignore
 /.eslintrc.js
+/.git/
 /.gitignore
+/.prettierignore
+/.prettierrc.js
 /.template-lintrc.js
 /.travis.yml
 /.watchmanconfig
@@ -22,6 +26,7 @@
 /ember-cli-build.js
 /testem.js
 /tests/
+/yarn-error.log
 /yarn.lock
 .gitkeep
 

.prettierignore

@@ -0,0 +1,21 @@
+# unconventional js
+/blueprints/*/files/
+/vendor/
+
+# compiled output
+/dist/
+/tmp/
+
+# dependencies
+/bower_components/
+/node_modules/
+
+# misc
+/coverage/
+!.*
+.eslintcache
+
+# ember-try
+/.node_modules.ember-try/
+/bower.json.ember-try
+/package.json.ember-try

.prettierrc.js

@@ -0,0 +1,5 @@
+'use strict';
+
+module.exports = {
+  singleQuote: true,
+};

.travis.yml

@@ -3,10 +3,9 @@ language: node_js
 node_js:
   # we recommend testing addons with the same minimum supported node version as Ember CLI
   # so that your addon works for all apps
-  - "8"
+  - "12"
 
-sudo: false
-dist: trusty
+dist: xenial
 
 addons:
   chrome: stable
@@ -27,29 +26,36 @@ branches:
     - /^v\d+\.\d+\.\d+/
 
 jobs:
-  fail_fast: true
+  fast_finish: true
   allow_failures:
     - env: EMBER_TRY_SCENARIO=ember-canary
 
   include:
     # runs linting and tests with current locked deps
-
     - stage: "Tests"
       name: "Tests"
       script:
-        - npm run lint:hbs
-        - npm run lint:js
-        - npm test
+        - npm run lint
+        - npm run test:ember
+
+    - stage: "Additional Tests"
+      name: "Floating Dependencies"
+      install:
+        - npm install --no-package-lock
+      script:
+        - npm run test:ember
 
     # we recommend new addons test the current and previous LTS
     # as well as latest stable release (bonus points to beta/canary)
-    - stage: "Additional Tests"
-      env: EMBER_TRY_SCENARIO=ember-lts-2.18
-    - env: EMBER_TRY_SCENARIO=ember-lts-3.4
+    - env: EMBER_TRY_SCENARIO=ember-lts-3.24
+    - env: EMBER_TRY_SCENARIO=ember-lts-3.28
     - env: EMBER_TRY_SCENARIO=ember-release
     - env: EMBER_TRY_SCENARIO=ember-beta
     - env: EMBER_TRY_SCENARIO=ember-canary
     - env: EMBER_TRY_SCENARIO=ember-default-with-jquery
+    - env: EMBER_TRY_SCENARIO=ember-classic
+    - env: EMBER_TRY_SCENARIO=embroider-safe
+    - env: EMBER_TRY_SCENARIO=embroider-optimized
 
 script:
-  - node_modules/.bin/ember try:one $EMBER_TRY_SCENARIO
+  - node_modules/.bin/ember try:one $EMBER_TRY_SCENARIO

ember-cli-build.js

@@ -2,7 +2,7 @@
 
 const EmberAddon = require('ember-cli/lib/broccoli/ember-addon');
 
-module.exports = function(defaults) {
+module.exports = function (defaults) {
   let app = new EmberAddon(defaults, {
     // Add options here
   });
@@ -14,5 +14,12 @@ module.exports = function(defaults) {
     behave. You most likely want to be modifying `./index.js` or app's build file
   */
 
-  return app.toTree();
+  const { maybeEmbroider } = require('@embroider/test-setup');
+  return maybeEmbroider(app, {
+    skipBabel: [
+      {
+        package: 'qunit',
+      },
+    ],
+  });
 };