fix: Ember Update v3.9.0...v3.21.2

BREAKING CHANGE: Drop Node < 10
BREAKING CHANGE: Drop Ember < 3.16

.editorconfig

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

.eslintrc.js

@@ -1,9 +1,14 @@
+'use strict';
+
 module.exports = {
   root: true,
   parser: 'babel-eslint',
   parserOptions: {
-    ecmaVersion: 2017,
-    sourceType: 'module'
+    ecmaVersion: 2018,
+    sourceType: 'module',
+    ecmaFeatures: {
+      legacyDecorators: true
+    }
   },
   plugins: [
     'ember'
@@ -15,8 +20,7 @@ module.exports = {
   env: {
     browser: true
   },
-  rules: {
-  },
+  rules: {},
   overrides: [
     // node files
     {
@@ -37,17 +41,14 @@ module.exports = {
         'tests/dummy/app/**'
       ],
       parserOptions: {
-        sourceType: 'script',
-        ecmaVersion: 2015
+        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
-      })
+      extends: ['plugin:node/recommended']
     }
   ]
 };

.npmignore

@@ -12,6 +12,7 @@
 /.env*
 /.eslintignore
 /.eslintrc.js
+/.git/
 /.gitignore
 /.template-lintrc.js
 /.travis.yml

.template-lintrc.js

@@ -1,8 +1,5 @@
 'use strict';
 
 module.exports = {
-  extends: 'recommended',
-  rules: {
-    quotes: 'single'
-  }
+  extends: 'octane',
 };

.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"
+  - '10'
 
-sudo: false
-dist: trusty
+dist: xenial
 
 addons:
   chrome: stable
@@ -27,33 +26,38 @@ 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:
+        - yarn lint
+        - yarn test:ember
 
-    - stage: "Tests"
-      name: "Tests"
+    - stage: 'Additional Tests'
+      name: 'Floating Dependencies'
+      install:
+        - yarn install --no-lockfile --non-interactive
       script:
-        - npm run lint:hbs
-        - npm run lint:js
-        - npm test
+        - yarn 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-3.10
+    - env: EMBER_TRY_SCENARIO=ember-lts-3.16
+    - env: EMBER_TRY_SCENARIO=ember-lts-3.20
     - 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
 
 before_install:
-  - npm config set spin false
-  - npm install -g npm@4
-  - npm --version
+  - curl -o- -L https://yarnpkg.com/install.sh | bash
+  - export PATH=$HOME/.yarn/bin:$PATH
 
 script:
   - node_modules/.bin/ember try:one $EMBER_TRY_SCENARIO

CONTRIBUTING.md

@@ -23,4 +23,4 @@
 * `ember serve`
 * Visit the dummy application at [http://localhost:4200](http://localhost:4200).
 
-For more information on using ember-cli, visit [https://ember-cli.com/](https://ember-cli.com/).
+For more information on using ember-cli, visit [https://ember-cli.com/](https://ember-cli.com/).

README.md

@@ -1,5 +1,4 @@
-ember-shadow-dom
-================
+# ember-shadow-dom
 
 Write templates for your components inside of a Shadow DOM root.
 Allows encapsulating styles (CSS) and markup (HTML) but using templates like
@@ -14,27 +13,23 @@ Not sure what Shadow DOM is? Check out this [MDN article](https://developer.mozi
 > Compatibility: Not all browsers support Shadow DOM (v1) yet, see [CanIUse](https://caniuse.com/#feat=shadowdomv1)
 > to see if your target browsers support this new feature.
 
-[![npm version][npm-badge]][npm-badge-url] 
+[![npm version][npm-badge]][npm-badge-url]
 
 [Try it in a CodeSandbox](https://codesandbox.io/s/kx0x7xr8mv)
 
+## Compatibility
 
-Compatibility
-------------------------------------------------------------------------------
+- Ember.js v3.16 or above (Decorators and [more][see-why])
+- Ember CLI v2.13 or above
+- Node.js v10 or above
 
-* Ember.js v3.10.0 or above (Decorators and [more][see-why])
-* Ember CLI v2.13 or above
-
-
-Installation
-------------
+## Installation
 
 ```sh
 ember install ember-shadow-dom
 ```
 
-Usage
------
+## Usage
 
 This addon provides a component called `ShadowDom` (or `shadow-dom` if not using angle brackets)
 
@@ -52,22 +47,18 @@ This addon provides a component called `ShadowDom` (or `shadow-dom` if not using
 
 This mode makes the encapsulating component's children a shadow root.
 
-
-
-API
----
+## API
 
 ### `ShadowDom` (`shadow-dom`)
 
 #### Arguments
 
 - `@mode` (string) - The mode of the Shadow Root, defaults to `'open'`. Can be `'open'` or `'closed'`.
-Note that `'closed'` mode prevents you from querying into the DOM of your components in tests.
+  Note that `'closed'` mode prevents you from querying into the DOM of your components in tests.
 - `@tagName` (string) - This defaults to `'div'`, but can be any valid element tag name used in HTML.
-Setting this argument changes the top level element that the shadow root is attached to.
+  Setting this argument changes the top level element that the shadow root is attached to.
 
-Testing
--------
+## Testing
 
 Components with a open shadowroot can be tested using qunit-dom like so:
 
@@ -84,23 +75,19 @@ Where the template looks like:
 </ShadowDom>
 ```
 
-Contributing
-------------
+## Contributing
 
 See the [Contributing](CONTRIBUTING.md) guide for details.
 
-
-Attribution
------------
+## Attribution
 
 Thanks to [@rwjblue](https://github.com/rwjblue) for realizing that `{{-in-element}}` can be used for the shadow root!
 
-
-License
--------
+## License
 
 This project is licensed under the [MIT License](LICENSE.md).
 
 [npm-badge]: https://badge.fury.io/js/ember-shadow-dom.svg
 [npm-badge-url]: http://badge.fury.io/js/ember-shadow-dom
+
 [see-why]: https://github.com/tildeio/ember-element-helper/issues/6#issuecomment-519349886]]

config/ember-try.js

@@ -2,70 +2,78 @@
 
 const getChannelURL = require('ember-source-channel-url');
 
-module.exports = function() {
-  return Promise.all([
-    getChannelURL('release'),
-    getChannelURL('beta'),
-    getChannelURL('canary')
-  ]).then((urls) => {
-    return {
-      scenarios: [
-        {
-          name: 'ember-3.10',
-          npm: {
-            devDependencies: {
-              'ember-source': '~3.10.0'
-            }
-          }
+module.exports = async function () {
+  return {
+    useYarn: true,
+    scenarios: [
+      {
+        name: 'ember-lts-3.16',
+        npm: {
+          devDependencies: {
+            'ember-source': '~3.16.0',
+          },
+        },
+      },
+      {
+        name: 'ember-lts-3.20',
+        npm: {
+          devDependencies: {
+            'ember-source': '~3.20.5',
+          },
+        },
+      },
+      {
+        name: 'ember-release',
+        npm: {
+          devDependencies: {
+            'ember-source': await getChannelURL('release'),
+          },
         },
-        {
-          name: 'ember-release',
-          npm: {
-            devDependencies: {
-              'ember-source': urls[0]
-            }
-          }
+      },
+      {
+        name: 'ember-beta',
+        npm: {
+          devDependencies: {
+            'ember-source': await getChannelURL('beta'),
+          },
         },
-        {
-          name: 'ember-beta',
-          npm: {
-            devDependencies: {
-              'ember-source': urls[1]
-            }
-          }
+      },
+      {
+        name: 'ember-canary',
+        npm: {
+          devDependencies: {
+            'ember-source': await getChannelURL('canary'),
+          },
         },
-        {
-          name: 'ember-canary',
-          npm: {
-            devDependencies: {
-              'ember-source': urls[2]
-            }
-          }
+      },
+      {
+        name: 'ember-default-with-jquery',
+        env: {
+          EMBER_OPTIONAL_FEATURES: JSON.stringify({
+            'jquery-integration': true,
+          }),
         },
-        // The default `.travis.yml` runs this scenario via `npm test`,
-        // not via `ember try`. It's still included here so that running
-        // `ember try:each` manually or from a customized CI config will run it
-        // along with all the other scenarios.
-        {
-          name: 'ember-default',
-          npm: {
-            devDependencies: {}
-          }
+        npm: {
+          devDependencies: {
+            '@ember/jquery': '^1.1.0',
+          },
         },
-        {
-          name: 'ember-default-with-jquery',
-          env: {
-            EMBER_OPTIONAL_FEATURES: JSON.stringify({
-              'jquery-integration': true
-            })
+      },
+      {
+        name: 'ember-classic',
+        env: {
+          EMBER_OPTIONAL_FEATURES: JSON.stringify({
+            'application-template-wrapper': true,
+            'default-async-observers': false,
+            'template-only-glimmer-components': false,
+          }),
+        },
+        npm: {
+          ember: {
+            edition: 'classic',
           },
-          npm: {
-            devDependencies: {
-              '@ember/jquery': '^0.5.1'
-            }
-          }
-        }
-      ]
-    };
-  });
+        },
+      },
+    ],
+  };
 };