upgrade to ember-cli@3 latest / node 12.x+

.editorconfig

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

.eslintignore

@@ -0,0 +1,22 @@
+# 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

.eslintrc.js

@@ -1,62 +1,66 @@
+'use strict';
+
 module.exports = {
   root: true,
+  parser: 'babel-eslint',
   parserOptions: {
-    ecmaVersion: 2017,
-    sourceType: 'module'
+    ecmaVersion: 2018,
+    sourceType: 'module',
+    ecmaFeatures: {
+      legacyDecorators: true,
+    },
   },
-  plugins: [
-    'ember'
-  ],
+  plugins: ['ember'],
   extends: [
     'eslint:recommended',
-    'plugin:ember/recommended'
+    'plugin:ember/recommended',
+    'plugin:prettier/recommended',
   ],
   env: {
-    browser: true
-  },
-  rules: {
+    browser: true,
   },
+  rules: {},
   overrides: [
     // node files
     {
       files: [
-        'ember-cli-build.js',
-        'index.js',
-        'testem.js',
-        'config/**/*.js',
-        'tests/dummy/config/**/*.js',
+        './.eslintrc.js',
+        './.prettierrc.js',
+        './.template-lintrc.js',
+        './ember-cli-build.js',
+        './index.js',
+        './testem.js',
+        './blueprints/*/index.js',
+        './config/**/*.js',
+        './tests/dummy/config/**/*.js',
         'node-tests/**/*.js',
-        'lib/**/*.js'
-      ],
-      excludedFiles: [
-        'addon/**',
-        'addon-test-support/**',
-        'app/**',
-        'tests/dummy/app/**'
+        'lib/**/*.js',
       ],
       parserOptions: {
         sourceType: 'script',
-        ecmaVersion: 2015
       },
       env: {
         browser: false,
-        node: true
+        node: true,
       },
       plugins: ['node'],
-      rules: Object.assign({}, require('eslint-plugin-node').configs.recommended.rules, {
-        // add your custom rules and overrides for node files here
-      })
-    }, {
-      files: [
-        'node-tests/**/*.js'
-      ],
+      extends: ['plugin:node/recommended'],
+    },
+    {
+      files: ['node-tests/**/*.js'],
       env: {
         node: true,
-        mocha: true
       },
+      plugins: ['mocha'],
+      extends: ['plugin:mocha/recommended', 'plugin:node/recommended'],
       rules: {
-        'node/no-unpublished-require': 'off'
-      }
-    }
-  ]
+        'node/no-unpublished-require': 'off',
+      },
+    },
+    {
+      // Test files:
+      files: ['tests/**/*-test.{js,ts}'],
+      extends: ['plugin:qunit/recommended'],
+    },
+  ],
 };

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ on:
       - '*'
 
 env:
-  NODE_VERSION: '4.x'
+  NODE_VERSION: '12.x'
 
 jobs:
   lint:
@@ -42,24 +42,20 @@ jobs:
           ${{ runner.os }}-${{ env.NODE_VERSION }}-
 
     - name: Install Dependencies
-      run: |
-        npm install --global yarn@1.12.3
-        yarn install --frozen-lockfile
+      run: yarn install --frozen-lockfile
       if: |
         steps.cache-dependencies.outputs.cache-hit != 'true'
 
     - name: Lint
-      run: |
-        npm install --global yarn@1.12.3
-        yarn lint:js
+      run: yarn lint
   test:
     name: Tests
     runs-on: ubuntu-latest
     continue-on-error: true
     needs: lint
     strategy:
       matrix:
-        node-version: [4.x, 6.x, 7.x]
+        node-version: [12.x, 14.x, 16.x]
     steps:
     - uses: actions/checkout@v2
       with:
@@ -86,15 +82,11 @@ jobs:
           ${{ runner.os }}-${{ matrix.node-version }}-
 
     - name: Install Dependencies
-      run: |
-        npm install --global yarn@1.12.3
-        yarn install --frozen-lockfile
+      run: yarn install --frozen-lockfile
       if: |
         steps.cache-dependencies.outputs.cache-hit != 'true'
     - name: Test
-      run: |
-        npm install --global yarn@1.12.3
-        yarn nodetest
+      run: yarn nodetest
 
   test-floating:
     name: Floating Dependencies
@@ -120,11 +112,7 @@ jobs:
           \${{ runner.os }}-\${{ env.NODE_VERSION }}-
 
     - name: Install Dependencies
-      run: |
-        npm install --global yarn@1.12.3
-        yarn install --no-lockfile --non-interactive
+      run: yarn install --no-lockfile --non-interactive
 
     - name: Test
-      run: |
-        npm install --global yarn@1.12.3
-        yarn nodetest
+      run: yarn nodetest

.gitignore

@@ -1,23 +1,26 @@
 # See https://help.github.com/ignore-files/ for more about ignoring files.
 
 # compiled output
-/dist
-/tmp
+/dist/
+/tmp/
 
 # dependencies
-/node_modules
-/bower_components
+/bower_components/
+/node_modules/
 
 # misc
+/.env*
+/.pnp*
 /.sass-cache
+/.eslintcache
 /connect.lock
-/coverage/*
+/coverage/
 /libpeerconnection.log
-npm-debug.log*
-yarn-error.log
-testem.log
+/npm-debug.log*
+/testem.log
+/yarn-error.log
 
 # ember-try
-.node_modules.ember-try/
-bower.json.ember-try
-package.json.ember-try
+/.node_modules.ember-try/
+/bower.json.ember-try
+/package.json.ember-try

.npmignore

@@ -1,21 +1,36 @@
-/bower_components
+# compiled output
+/dist/
+/tmp/
+
+# dependencies
+/bower_components/
+
+# misc
+/.bowerrc
+/.editorconfig
+/.ember-cli
+/.env*
+/.eslintcache
+/.eslintignore
+/.eslintrc.js
+/.git/
+/.gitignore
+/.prettierignore
+/.prettierrc.js
+/.template-lintrc.js
+/.travis.yml
+/.watchmanconfig
+/bower.json
 /config/ember-try.js
-/dist
-/tests
-/tmp
-**/.gitkeep
-.bowerrc
-.editorconfig
-.ember-cli
-.eslintrc.js
-.gitignore
-.watchmanconfig
-.travis.yml
-bower.json
-ember-cli-build.js
-testem.js
+/CONTRIBUTING.md
+/ember-cli-build.js
+/testem.js
+/tests/
+/yarn-error.log
+/yarn.lock
+.gitkeep
 
 # ember-try
-.node_modules.ember-try/
-bower.json.ember-try
-package.json.ember-try
+/.node_modules.ember-try/
+/bower.json.ember-try
+/package.json.ember-try

.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,
+};

.template-lintrc.js

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