Update lint config to account for ESM

.eslintignore

@@ -1,7 +1,10 @@
 # Compiled output
 /packages/*/lib
-/packages/scripts/bin/lib
+/packages/scripts/bin
+/test-packages/*/lib
+
 dist/
+__fixtures__
 
 # Ephemeral test applications
 /test-packages/ephemeral

.eslintrc

@@ -2,21 +2,22 @@
   "root": true,
   "extends": ["eslint:recommended"],
   "parserOptions": {
-    "ecmaVersion": 2020
+    "ecmaVersion": 2022,
+    "sourceType": "module"
   },
   "rules": {
     "prefer-const": "off",
     "require-yield": "off"
   },
   "overrides": [
     {
-      "files": "*.js",
+      "files": ["*.js", "*.cjs", "*.mjs"],
       "env": {
         "node": true
       }
     },
     {
-      "files": "*.ts",
+      "files": ["*.ts", "*.cts", "*.mts"],
       "parser": "@typescript-eslint/parser",
       "plugins": ["@typescript-eslint"],
       "extends": [

package.json

@@ -22,9 +22,9 @@
     "@release-it-plugins/lerna-changelog": "^5.0.0",
     "@release-it-plugins/workspaces": "^3.2.0",
     "@types/yargs": "^17.0.10",
-    "@typescript-eslint/eslint-plugin": "^4.9.0",
-    "@typescript-eslint/parser": "^4.9.0",
-    "eslint": "^7.15.0",
+    "@typescript-eslint/eslint-plugin": "^5.42.1",
+    "@typescript-eslint/parser": "^5.42.1",
+    "eslint": "^8.27.0",
     "prettier": "^2.1.1",
     "release-it": "^15.5.0",
     "typescript": "^4.7.4"

test-packages/js-glimmerx-app/package.json

@@ -31,8 +31,6 @@
     "copy-webpack-plugin": "^5.1.1",
     "css-loader": "^3.4.2",
     "eslint": "^6.8.0",
-    "eslint-config-prettier": "^6.10.1",
-    "eslint-plugin-prettier": "^3.1.2",
     "file-loader": "^6.0.0",
     "glob": "7.1.6",
     "html-webpack-plugin": "^4.0.4",
@@ -47,33 +45,25 @@
     "webpack-dev-server": "^3.10.3"
   },
   "eslintConfig": {
-    "parser": "babel-eslint",
+    "parser": "@typescript-eslint/parser",
     "parserOptions": {
-      "ecmaVersion": 6,
+      "ecmaVersion": 2022,
       "sourceType": "module",
       "ecmaFeatures": {
         "impliedStrict": true
       }
     },
+    "rules": {
+      "no-unused-vars": "off"
+    },
     "env": {
       "browser": true
     },
-    "plugins": [
-      "@glimmerx",
-      "prettier"
-    ],
-    "extends": [
-      "eslint:recommended",
-      "plugin:prettier/recommended"
-    ],
     "ignorePatterns": [
       "dist/",
       "node_modules/",
       "!.*"
     ],
-    "rules": {
-      "@glimmerx/template-vars": "error"
-    },
     "overrides": [
       {
         "files": [

test-packages/ts-ember-app/.eslintrc.js

@@ -36,7 +36,6 @@ module.exports = {
         'lib/*/index.js',
         'server/**/*.js',
       ],
-      parser: 'babel-eslint',
       parserOptions: {
         sourceType: 'script',
       },

test-packages/ts-ember-app/package.json

@@ -36,7 +36,6 @@
     "@types/ember-resolver": "~5.0.10",
     "@types/ember__test-helpers": "~2.6.1",
     "@types/qunit": "^2.11.1",
-    "babel-eslint": "^10.1.0",
     "broccoli-asset-rev": "^3.0.0",
     "ember-auto-import": "^2.4.1",
     "ember-cli": "~4.4.0",

test-packages/ts-glimmerx-app/package.json

@@ -32,8 +32,6 @@
     "@glint/core": "^0.9.7",
     "@glint/environment-glimmerx": "^0.9.7",
     "@types/qunit": "^2.9.1",
-    "@typescript-eslint/eslint-plugin": "^4.9.0",
-    "@typescript-eslint/parser": "^4.9.0",
     "babel-loader": "^8.1.0",
     "clean-webpack-plugin": "^3.0.0",
     "copy-webpack-plugin": "^5.1.1",
@@ -58,7 +56,7 @@
   "eslintConfig": {
     "parser": "@typescript-eslint/parser",
     "parserOptions": {
-      "ecmaVersion": 2019,
+      "ecmaVersion": 2021,
       "sourceType": "module"
     },
     "env": {