update lint implementation to support gjs

Author: mansona

.eslintrc.js

@@ -2,12 +2,15 @@
 
 module.exports = {
   root: true,
-  parser: 'babel-eslint',
+  parser: '@babel/eslint-parser',
   parserOptions: {
-    ecmaVersion: 2018,
+    ecmaVersion: 'latest',
     sourceType: 'module',
-    ecmaFeatures: {
-      legacyDecorators: true,
+    requireConfigFile: false,
+    babelOptions: {
+      plugins: [
+        ['@babel/plugin-proposal-decorators', { decoratorsBeforeExport: true }],
+      ],
     },
   },
   plugins: ['ember'],
@@ -19,52 +22,37 @@ module.exports = {
   env: {
     browser: true,
   },
-  rules: {
-    'no-console': 'off',
-    'ember/no-new-mixins': 'off',
-    'ember/no-mixins': 'off',
-    'ember/require-tagless-components': 'off',
-    'ember/no-classic-classes': 'off',
-    'ember/no-get': 'off',
-    'ember/no-classic-components': 'off',
-    'ember/no-private-routing-service': 'off',
-  },
+  rules: {},
   overrides: [
+    {
+      files: ['**/*.gjs'],
+      parser: 'ember-eslint-parser',
+    },
     // node files
     {
       files: [
         './.eslintrc.js',
         './.prettierrc.js',
+        './.stylelintrc.js',
         './.template-lintrc.js',
         './ember-cli-build.js',
         './testem.js',
         './blueprints/*/index.js',
         './config/**/*.js',
         './lib/*/index.js',
         './server/**/*.js',
-        './run-tests.js',
-        './bin/*',
-        './prember-urls.js',
       ],
-      excludedFiles: ['config/deprecation-workflow.js'],
       parserOptions: {
         sourceType: 'script',
-        ecmaVersion: 2017,
       },
       env: {
         browser: false,
         node: true,
       },
-      plugins: ['node'],
-      extends: ['plugin:node/recommended'],
-      rules: {
-        // this can be removed once the following is fixed
-        // https://github.com/mysticatea/eslint-plugin-node/issues/77
-        'node/no-unpublished-require': 'off',
-      },
+      extends: ['plugin:n/recommended'],
     },
     {
-      // Test files:
+      // test files
       files: ['tests/**/*-test.{js,ts}'],
       extends: ['plugin:qunit/recommended'],
     },

.prettierignore

@@ -14,8 +14,12 @@
 /coverage/
 !.*
 .eslintcache
+.lint-todo/
 
 # 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

.prettierrc.js

@@ -1,5 +1,13 @@
 'use strict';
 
 module.exports = {
-  singleQuote: true,
+  plugins: ['prettier-plugin-ember-template-tag'],
+  overrides: [
+    {
+      files: '*.{js,ts,gjs,gts}',
+      options: {
+        singleQuote: true,
+      },
+    },
+  ],
 };

package.json

@@ -27,6 +27,7 @@
     "test:ember": "ember test"
   },
   "devDependencies": {
+    "@babel/plugin-proposal-decorators": "^7.25.9",
     "@ember/optional-features": "^2.0.0",
     "@ember/test-helpers": "^2.6.0",
     "@embroider/compat": "^3.4.3",
@@ -88,6 +89,7 @@
     "ember-concurrency": "^2.3.7",
     "ember-data": "~3.28.6",
     "ember-data-fastboot": "https://github.com/cardstack/ember-data-fastboot#6e6fb8bbf0b405ae174160cc1e4833c5582f68cd",
+    "ember-eslint-parser": "^0.5.9",
     "ember-export-application-global": "^2.0.1",
     "ember-fetch": "^8.1.1",
     "ember-inflector": "^4.0.3",
@@ -100,21 +102,24 @@
     "ember-resolver": "^8.0.3",
     "ember-rfc176-data": "^0.3.17",
     "ember-route-action-helper": "^2.0.8",
+    "ember-route-template": "^1.0.3",
     "ember-showdown-shiki": "^1.2.1",
     "ember-sinon": "^4.1.1",
     "ember-source": "~3.28.8",
     "ember-styleguide": "^3.3.0",
     "ember-svg-jar": "^2.4.2",
-    "ember-template-lint": "^3.15.0",
+    "ember-template-imports": "^4.3.0",
+    "ember-template-lint": "^6.1.0",
     "ember-test-selectors": "^6.0.0",
     "ember-tether": "1.0.0",
     "ember-truth-helpers": "^2.1.0",
     "ember-web-app": "^2.0.0",
-    "eslint": "^7.32.0",
+    "eslint": "^8.57.1",
     "eslint-config-prettier": "^8.3.0",
-    "eslint-plugin-ember": "^10.5.8",
+    "eslint-plugin-ember": "^12.5.0",
+    "eslint-plugin-n": "^17.15.1",
     "eslint-plugin-node": "^11.1.0",
-    "eslint-plugin-prettier": "^3.4.1",
+    "eslint-plugin-prettier": "^5.2.3",
     "eslint-plugin-qunit": "^6.2.0",
     "express-sslify": "^1.2.0",
     "fastboot-app-server": "^3.3.2",
@@ -133,7 +138,8 @@
     "normalize.css": "^8.0.1",
     "npm-run-all": "^4.1.5",
     "prember": "^2.1.0",
-    "prettier": "^2.5.1",
+    "prettier": "^3.5.2",
+    "prettier-plugin-ember-template-tag": "^2.0.4",
     "qunit": "^2.17.2",
     "qunit-dom": "^1.6.0",
     "sanitize-html": "^2.3.2",
@@ -171,5 +177,9 @@
       "ember-truth-helpers": "^4.0.0"
     }
   },
-  "packageManager": "pnpm@9.5.0"
+  "packageManager": "pnpm@9.5.0",
+  "exports": {
+    "./tests/*": "./tests/*",
+    "./*": "./app/*"
+  }
 }