initial iplementation

.dependabot/config.yml

@@ -0,0 +1,13 @@
+version: 1
+update_configs:
+  - package_manager: 'javascript'
+    directory: '/'
+    update_schedule: 'live'
+    version_requirement_updates: increase_versions
+    automerged_updates:
+      - match:
+          dependency_type: 'development'
+          update_type: 'all'
+      - match:
+          dependency_type: 'production'
+          update_type: 'all'

.eslintrc.js

@@ -1,51 +1,4 @@
 module.exports = {
   root: true,
-  parserOptions: {
-    ecmaVersion: 2018,
-    sourceType: 'module'
-  },
-  plugins: [
-    'ember'
-  ],
-  extends: [
-    'eslint:recommended',
-    'plugin:ember/recommended'
-  ],
-  env: {
-    browser: true
-  },
-  rules: {
-  },
-  overrides: [
-    // node files
-    {
-      files: [
-        '.eslintrc.js',
-        '.template-lintrc.js',
-        'ember-cli-build.js',
-        'index.js',
-        'testem.js',
-        'blueprints/*/index.js',
-        'config/**/*.js',
-        'tests/dummy/config/**/*.js'
-      ],
-      excludedFiles: [
-        'addon/**',
-        'addon-test-support/**',
-        'app/**',
-        'tests/dummy/app/**'
-      ],
-      parserOptions: {
-        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: '@clark/node'
 };

README.md

@@ -1,38 +1,33 @@
-ember-service-helper
-==============================================================================
+# ember-service-helper
 
-[Short description of the addon.]
+[![Build Status](https://travis-ci.org/buschtoens/ember-service-helper.svg)](https://travis-ci.org/buschtoens/ember-service-helper)
+[![npm version](https://badge.fury.io/js/ember-service-helper.svg)](http://badge.fury.io/js/ember-service-helper)
+[![Download Total](https://img.shields.io/npm/dt/ember-service-helper.svg)](http://badge.fury.io/js/ember-service-helper)
+[![Ember Observer Score](https://emberobserver.com/badges/ember-service-helper.svg)](https://emberobserver.com/addons/ember-service-helper)
+[![code style: prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg)](https://github.com/prettier/prettier)
+[![dependencies](https://img.shields.io/david/buschtoens/ember-service-helper.svg)](https://david-dm.org/buschtoens/ember-service-helper)
+[![devDependencies](https://img.shields.io/david/dev/buschtoens/ember-service-helper.svg)](https://david-dm.org/buschtoens/ember-service-helper)
 
+Simple template helper to inject services into templates.
 
-Compatibility
-------------------------------------------------------------------------------
-
-* Ember.js v3.4 or above
-* Ember CLI v2.13 or above
-* Node.js v8 or above
-
-
-Installation
-------------------------------------------------------------------------------
+## Installation
 
 ```
 ember install ember-service-helper
 ```
 
+## Usage
 
-Usage
-------------------------------------------------------------------------------
-
-[Longer description of how to use the addon in apps.]
-
-
-Contributing
-------------------------------------------------------------------------------
-
-See the [Contributing](CONTRIBUTING.md) guide for details.
+Example using [`ember-responsive`](https://github.com/freshbooks/ember-responsive).
 
+```hbs
+{{#if (get (service "breakpoints") "isDesktop")}}
+  Desktop breakpoint
+{{else}}
+  Mobile breakpoint
+{{/if}}
+```
 
-License
-------------------------------------------------------------------------------
+## Related
 
-This project is licensed under the [MIT License](LICENSE.md).
+- [Pre-RFC 543: Ability to inject service into Template Only component](https://github.com/emberjs/rfcs/issues/543)

addon/.eslintrc.js

@@ -0,0 +1,4 @@
+module.exports = {
+  root: true,
+  extends: '@clark/ember'
+};

addon/helpers/service.js

@@ -0,0 +1,12 @@
+import { getOwner } from '@ember/application';
+import Helper from '@ember/component/helper';
+import { assert } from '@ember/debug';
+
+export default class ServiceHelper extends Helper {
+  compute([serviceName]) {
+    const service = getOwner(this).lookup(`service:${serviceName}`);
+    assert(`The service '${serviceName}' does not exist`, service);
+
+    return service;
+  }
+}

app/.eslintrc.js

@@ -0,0 +1,4 @@
+module.exports = {
+  root: true,
+  extends: '@clark/ember'
+};

app/helpers/service.js

@@ -0,0 +1 @@
+export { default, service } from 'ember-service-helper/helpers/service';

config/environment.js

@@ -1,5 +1,5 @@
 'use strict';
 
 module.exports = function(/* environment, appConfig */) {
-  return { };
+  return {};
 };

ember-cli-build.js

@@ -3,7 +3,7 @@
 const EmberAddon = require('ember-cli/lib/broccoli/ember-addon');
 
 module.exports = function(defaults) {
-  let app = new EmberAddon(defaults, {
+  const app = new EmberAddon(defaults, {
     // Add options here
   });
 

package.json

@@ -1,13 +1,19 @@
 {
   "name": "ember-service-helper",
   "version": "0.0.0",
-  "description": "The default blueprint for ember-cli addons.",
+  "description": "Simple template helper to inject services into templates.",
   "keywords": [
-    "ember-addon"
+    "ember-addon",
+    "helper",
+    "inject",
+    "service",
+    "template",
+    "only",
+    "component"
   ],
-  "repository": "",
+  "repository": "buschtoens/ember-service-helper",
   "license": "MIT",
-  "author": "",
+  "author": "Jan Buschtöns <[email protected]> (https://jan.buschtoens.me)",
   "directories": {
     "doc": "doc",
     "test": "tests"
@@ -24,16 +30,16 @@
     "ember-cli-babel": "^7.7.3"
   },
   "devDependencies": {
+    "@clark/eslint-config-ember": "^1.14.1",
+    "@clark/eslint-config-node": "^1.14.1",
     "@ember/optional-features": "^0.7.0",
     "broccoli-asset-rev": "^3.0.0",
     "ember-cli": "~3.12.0",
     "ember-cli-dependency-checker": "^3.1.0",
-    "ember-cli-eslint": "^5.1.0",
     "ember-cli-htmlbars": "^3.0.1",
     "ember-cli-htmlbars-inline-precompile": "^2.1.0",
     "ember-cli-inject-live-reload": "^1.8.2",
     "ember-cli-sri": "^2.1.1",
-    "ember-cli-template-lint": "^1.0.0-beta.1",
     "ember-cli-uglify": "^2.1.0",
     "ember-disable-prototype-extensions": "^1.1.3",
     "ember-export-application-global": "^2.0.0",
@@ -43,9 +49,9 @@
     "ember-resolver": "^5.0.1",
     "ember-source": "~3.12.0",
     "ember-source-channel-url": "^1.1.0",
+    "ember-template-lint": "^1.5.3",
     "ember-try": "^1.0.0",
-    "eslint-plugin-ember": "^6.2.0",
-    "eslint-plugin-node": "^9.0.1",
+    "eslint": "^6.3.0",
     "loader.js": "^4.7.0",
     "qunit-dom": "^0.8.4"
   },

testem.js

@@ -1,12 +1,8 @@
 module.exports = {
   test_page: 'tests/index.html?hidepassed',
   disable_watching: true,
-  launch_in_ci: [
-    'Chrome'
-  ],
-  launch_in_dev: [
-    'Chrome'
-  ],
+  launch_in_ci: ['Chrome'],
+  launch_in_dev: ['Chrome'],
   browser_args: {
     Chrome: {
       ci: [

tests/.eslintrc.js

@@ -0,0 +1,4 @@
+module.exports = {
+  root: true,
+  extends: '@clark/ember'
+};

tests/dummy/app/app.js

@@ -1,7 +1,9 @@
 import Application from '@ember/application';
-import Resolver from './resolver';
+
 import loadInitializers from 'ember-load-initializers';
+
 import config from './config/environment';
+import Resolver from './resolver';
 
 const App = Application.extend({
   modulePrefix: config.modulePrefix,

tests/dummy/app/router.js

@@ -1,12 +1,12 @@
 import EmberRouter from '@ember/routing/router';
+
 import config from './config/environment';
 
 const Router = EmberRouter.extend({
   location: config.locationType,
   rootURL: config.rootURL
 });
 
-Router.map(function() {
-});
+Router.map(function() {});
 
 export default Router;

tests/dummy/config/.eslintrc.js

@@ -0,0 +1,4 @@
+module.exports = {
+  root: true,
+  extends: '@clark/node'
+};

tests/dummy/config/environment.js

@@ -1,7 +1,7 @@
 'use strict';
 
 module.exports = function(environment) {
-  let ENV = {
+  const ENV = {
     modulePrefix: 'dummy',
     environment,
     rootURL: '/',

tests/integration/helpers/service-test.js

@@ -0,0 +1,59 @@
+import { render } from '@ember/test-helpers';
+import { setupRenderingTest } from 'ember-qunit';
+import { module, test } from 'qunit';
+
+import { set } from '@ember/object';
+import { run } from '@ember/runloop';
+import Service from '@ember/service';
+import Ember from 'ember';
+
+import hbs from 'htmlbars-inline-precompile';
+
+module('Integration | Helpers | Service', function(hooks) {
+  setupRenderingTest(hooks);
+
+  const { onerror } = Ember;
+  hooks.afterEach(() => {
+    Ember.onerror = onerror;
+  });
+
+  hooks.beforeEach(function() {
+    this.owner.register(
+      'service:some-service',
+      class SomeService extends Service {
+        init() {
+          super.init();
+
+          this.isTrue = true;
+          this.fruitType = 'Banana';
+        }
+      }
+    );
+  });
+
+  test('it allows you to access a property on a service if it exists', async function(assert) {
+    await render(hbs`{{get (service "some-service") "fruitType"}}`);
+    assert.dom().includesText('Banana');
+
+    await render(
+      hbs`{{if (get (service "some-service") "isTrue") "I am here"}}`
+    );
+    assert.dom().includesText('I am here');
+
+    const service = this.owner.lookup('service:some-service');
+    run(() => set(service, 'isTrue', false));
+    assert.dom().doesNotIncludeText('I am here');
+  });
+
+  test('it throws an error when trying to access a service that does not exist', async function(assert) {
+    assert.expect(1);
+
+    Ember.onerror = error =>
+      assert.equal(
+        error.message,
+        "Assertion Failed: The service 'not-a-service' does not exist"
+      );
+
+    await render(hbs`{{service "not-a-service"}}`);
+  });
+});

tests/test-helper.js

@@ -1,8 +1,9 @@
-import Application from '../app';
-import config from '../config/environment';
 import { setApplication } from '@ember/test-helpers';
 import { start } from 'ember-qunit';
 
+import Application from '../app';
+import config from '../config/environment';
+
 setApplication(Application.create(config.APP));
 
 start();