test: add eslint-remote-tester

.gitignore

@@ -11,3 +11,7 @@ coverage
 npm-debug.log
 *.swp
 .vscode
+
+# eslint-remote-tester
+.cache-eslint-remote-tester
+eslint-remote-tester-results

eslint-remote-tester.config.js

@@ -0,0 +1,63 @@
+/* eslint filenames/match-regex:off */
+const { getPathIgnorePattern } = require('eslint-remote-tester-repositories');
+const fs = require('fs');
+
+module.exports = {
+  /** Repositories to scan */
+  repositories: [
+    // TODO: Add more Ember apps, addons, and engines here.
+    // Ideally, we can add some of the most popular repos (dependents) using eslint-plugin-ember.
+    'DockYard/ember-composable-helpers',
+    'adopted-ember-addons/ember-cli-flash',
+    'adopted-ember-addons/ember-cli-sass',
+    'adopted-ember-addons/ember-cp-validations',
+    'adopted-ember-addons/ember-data-model-fragments',
+    'adopted-ember-addons/ember-electron',
+    'adopted-ember-addons/ember-moment',
+    'babel/ember-cli-babel',
+    'cibernox/ember-power-select',
+    'ef4/ember-auto-import',
+    'ember-cli/ember-cli',
+    'ember-cli/ember-cli-htmlbars',
+    'ember-decorators/ember-decorators',
+    'emberjs/data',
+    'emberjs/ember-qunit',
+    'emberjs/ember.js',
+    'jmurphyau/ember-truth-helpers',
+    'machty/ember-concurrency',
+    'miragejs/ember-cli-mirage',
+    'typed-ember/ember-cli-typescript',
+  ],
+
+  /** Optional pattern used to exclude paths */
+  pathIgnorePattern: getPathIgnorePattern(),
+
+  /** Extensions of files under scanning */
+  extensions: ['js', 'ts'],
+
+  /** Optional boolean flag used to enable caching of cloned repositories. For CIs it's ideal to disable caching. Defaults to true. */
+  cache: false,
+
+  /** ESLint configuration */
+  eslintrc: {
+    plugins: ['ember'],
+    // Enable all of our rules.
+    rules: Object.fromEntries(
+      fs
+        .readdirSync(`${__dirname}/lib/rules`)
+        .map((filename) => `ember/${filename.replace(/\.js$/, '')}`)
+        .map((ruleName) => {
+          let value;
+          // A few rules require additional configuration.
+          if (ruleName === 'ember/no-restricted-property-modifications') {
+            value = ['error', { properties: ['myProp'] }];
+          } else if (ruleName === 'ember/no-restricted-service-injections') {
+            value = ['error', { services: ['my-service'] }];
+          } else {
+            value = 'error';
+          }
+          return [ruleName, value];
+        })
+    ),
+  },
+};

package.json

@@ -39,6 +39,7 @@
     "lint:package-json": "npmPkgJsonLint .",
     "lint:package-json-sorting": "sort-package-json --check",
     "lint:package-json-sorting:fix": "sort-package-json package.json",
+    "lint:remote": "eslint-remote-tester",
     "release": "release-it",
     "start": "yarn run test:watch",
     "test": "jest",
@@ -94,6 +95,8 @@
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-prettier": "^4.0.0",
     "eslint-plugin-unicorn": "^45.0.1",
+    "eslint-remote-tester": "^3.0.0",
+    "eslint-remote-tester-repositories": "^1.0.0",
     "jest": "^29.1.2",
     "jquery": "^3.5.1",
     "jsdom": "^20.0.0",