breaking: drops Ember < 3.28, upgrades to Ember 4.12, supports Ember 5

.editorconfig

@@ -4,7 +4,6 @@
 
 root = true
 
-
 [*]
 end_of_line = lf
 charset = utf-8

.ember-cli

@@ -5,5 +5,11 @@
 
     Setting `disableAnalytics` to true will prevent any data from being sent.
   */
-  "disableAnalytics": false
+  "disableAnalytics": false,
+
+  /**
+    Setting `isTypeScriptProject` to true will force the blueprint generators to generate TypeScript
+    rather than JavaScript by default, when a TypeScript version of a given blueprint is available.
+  */
+  "isTypeScriptProject": true
 }

.eslintignore

@@ -13,10 +13,13 @@
 # misc
 /coverage/
 !.*
+.*/
+.eslintcache
 
 # ember-try
 /.node_modules.ember-try/
 /bower.json.ember-try
+/npm-shrinkwrap.json.ember-try
 /package.json.ember-try
-
-test/fixtures
+/package-lock.json.ember-try
+/yarn.lock.ember-try

.eslintrc.js

@@ -1,26 +1,42 @@
+'use strict';
+
 module.exports = {
   root: true,
-  parser: 'babel-eslint',
+  parser: '@babel/eslint-parser',
   parserOptions: {
-    ecmaVersion: 2018,
-    sourceType: 'module'
+    ecmaVersion: 'latest',
+    sourceType: 'module',
+    requireConfigFile: false,
+    babelOptions: {
+      plugins: [
+        ['@babel/plugin-proposal-decorators', { decoratorsBeforeExport: true }],
+      ],
+    },
   },
   plugins: ['ember'],
-  extends: ['eslint:recommended', 'plugin:ember/recommended'],
+  extends: [
+    'eslint:recommended',
+    'plugin:ember/recommended',
+    'plugin:prettier/recommended',
+  ],
   env: {
-    browser: true
+    browser: true,
   },
   globals: {
-    fetch: 'off',
-    Headers: 'off',
-    Request: 'off',
-    Response: 'off',
-    AbortController: 'off'
+    require: true,
+    beforeEach: true,
+    it: true,
+    describe: true,
+    afterEach: true,
+    process: true,
+    module: true,
   },
   rules: {
     'ember/no-new-mixins': 'off',
     'ember/no-jquery': 'error',
-    'no-console': ['error', { allow: ['warn'] }]
+    'no-console': ['error', { allow: ['warn'] }],
+    'ember/no-classic-classes': 'off',
+    'ember/no-actions-hash': 'off',
   },
   overrides: [
     // TypeScript files
@@ -30,45 +46,40 @@ module.exports = {
       plugins: ['@typescript-eslint'],
       rules: {
         'no-undef': 'off',
-        'no-unused-var': 'off'
-      }
+        'no-unused-var': 'off',
+      },
     },
     // node files
     {
       files: [
-        '.eslintrc.js',
-        '.template-lintrc.js',
-        'ember-cli-build.js',
-        'index.js',
-        'testem.js',
-        'blueprints/*/index.js',
-        'config/**/*.js',
-        'test/**/*.js',
-        'tests/dummy/config/**/*.js'
+        './.eslintrc.js',
+        './.prettierrc.js',
+        './.stylelintrc.js',
+        './.template-lintrc.js',
+        './ember-cli-build.js',
+        './index.js',
+        './testem.js',
+        './blueprints/*/index.js',
+        './config/**/*.js',
+        './tests/dummy/config/**/*.js',
       ],
-      excludedFiles: ['app/**', 'addon-test-support/**', 'addon/**', 'tests/dummy/app/**'],
       parserOptions: {
-        sourceType: 'script'
+        sourceType: 'script',
       },
       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
-      })
-    },
-    // node tests
-    {
-      files: ['test/**/*.js'],
-      env: {
-        mocha: true
+        node: true,
       },
+      extends: ['plugin:n/recommended'],
       rules: {
         'node/no-unpublished-require': 'off',
-        'node/no-extraneous-require': 'off'
-      }
-    }
-  ]
+        'node/no-extraneous-require': 'off',
+      },
+    },
+    {
+      // test files
+      files: ['tests/**/*-test.{js,ts}'],
+      extends: ['plugin:qunit/recommended'],
+    },
+  ],
 };

.github/workflows/CI.yml

@@ -11,102 +11,129 @@ on:
     tags:
       - "*"
 
+concurrency:
+  group: ci-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   lint:
     name: "Linting"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - run: yarn install --frozen-lockfile --non-interactive
-      - run: yarn lint:js
+      - run: yarn lint
 
-  ember-tests:
+  ember-default-tests:
     needs: lint
     name: "Tests: ubuntu (node@${{ matrix.node-version }})"
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
-        node-version: ["12"]
+        node-version:
+          - 16.14
+          - 18
+          - 20
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           node-version: ${{ matrix.node-version }}
+          cache: yarn
       - run: yarn install --frozen-lockfile --non-interactive
       - run: yarn test
 
-  prefer-native-tests:
-    needs: ember-tests
+  prefer-native-ember-default-tests:
+    needs: ember-default-tests
     name: "PREFER_NATIVE=true Tests: ubuntu (node@${{ matrix.node-version }})"
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
-        node-version: ["12"]
+        node-version:
+          - 16.14
+          - 18
+          - 20
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           node-version: ${{ matrix.node-version }}
+          cache: yarn
       - run: yarn install --frozen-lockfile --non-interactive
       - run: PREFER_NATIVE=true yarn test
 
-  native-promise-tests:
-    needs: ember-tests
+  native-promise-ember-default-tests:
+    needs: ember-default-tests
     name: "NATIVE_PROMISE=true Tests: ubuntu (node@${{ matrix.node-version }})"
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
-        node-version: ["12"]
+        node-version:
+          - 16.14
+          - 18
+          - 20
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           node-version: ${{ matrix.node-version }}
       - run: yarn install --frozen-lockfile --non-interactive
       - run: NATIVE_PROMISE=true yarn test
 
   node-tests:
-    needs: ember-tests
+    needs: ember-default-tests
     name: "Node Tests: ubuntu (node@${{ matrix.node-version }})"
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
-        node-version: ["12"]
+        node-version:
+          - 16.14
+          - 18
+          - 20
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           node-version: ${{ matrix.node-version }}
       - run: yarn install --frozen-lockfile --non-interactive
       - run: yarn run test:node
-
-  try-scenarios:
+  
+  ember-try-scenarios:
     name: Tests - ${{ matrix.ember-try-scenario }}
     timeout-minutes: 60
     runs-on: ubuntu-latest
     continue-on-error: ${{ matrix.allow-failure }}
-    needs: ember-tests
+    needs: ember-default-tests
 
     strategy:
       fail-fast: true
       matrix:
         ember-try-scenario:
-          - ember-lts-3.4
-          - ember-lts-3.8
-          - ember-lts-3.12
-          - ember-lts-3.16
-          - ember-lts-3.20
-          - ember-lts-3.24
+          - ember-lts-3.28
+          - ember-lts-4.4
+          - ember-lts-4.8
           - ember-release
-          - ember-beta
         allow-failure: [false]
         include:
+          - ember-try-scenario: ember-beta
+            allow-failure: true
           - ember-try-scenario: ember-canary
             allow-failure: true
+          - ember-try-scenario: embroider-safe
+            allow-failure: true
+          - ember-try-scenario: embroider-optimized
+            allow-failure: true
+
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
+      - name: Install Node
+        uses: actions/setup-node@v4
         with:
-          node-version: 12.x
+          node-version: 16.14
       - name: install dependencies
         run: yarn install
       - name: test

.gitignore

@@ -10,6 +10,7 @@
 
 # misc
 /.sass-cache
+/.eslintcache
 /connect.lock
 /coverage/*
 /libpeerconnection.log
@@ -19,6 +20,12 @@ yarn-error.log
 testem.log
 
 # ember-try
-.node_modules.ember-try/
-bower.json.ember-try
-package.json.ember-try
+/.node_modules.ember-try/
+/bower.json.ember-try
+/npm-shrinkwrap.json.ember-try
+/package.json.ember-try
+/package-lock.json.ember-try
+/yarn.lock.ember-try
+
+# broccoli-debug
+/DEBUG/

.npmignore

@@ -14,22 +14,30 @@
 /.eslintignore
 /.eslintrc.js
 /.git/
+/.github/
 /.gitignore
+/.prettierignore
+/.prettierrc.js
+/.stylelintignore
+/.stylelintrc.js
 /.template-lintrc.js
 /.travis.yml
 /.watchmanconfig
 /bower.json
-/config/ember-try.js
 /CONTRIBUTING.md
 /ember-cli-build.js
 /npm-debug.log*
 /testem.js
 /tests/
+/yarn-error.log
 /yarn.lock
 /yarn-error.log
 .gitkeep
 
 # ember-try
 /.node_modules.ember-try/
 /bower.json.ember-try
+/npm-shrinkwrap.json.ember-try
 /package.json.ember-try
+/package-lock.json.ember-try
+/yarn.lock.ember-try