Split prettier out of eslint

Author: kategengler

.prettierignore

@@ -0,0 +1,9 @@
+blueprints/*/*files/
+node-tests/fixtures/**/*.js
+docs/
+**/.*
+**/dist/
+**/tmp/
+**/smoke-tests/
+**/types/
+**/type-tests/

eslint.config.mjs

@@ -1,4 +1,3 @@
-import { fixupConfigRules } from '@eslint/compat';
 import emberInternal from 'eslint-plugin-ember-internal';
 import importPlugin from 'eslint-plugin-import';
 import qunitPluginRecommended from 'eslint-plugin-qunit/configs/recommended';
@@ -9,15 +8,9 @@ import nodePlugin from 'eslint-plugin-n';
 import path from 'node:path';
 import { fileURLToPath } from 'node:url';
 import pluginJs from '@eslint/js';
-import { FlatCompat } from '@eslint/eslintrc';
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
-const compat = new FlatCompat({
-  baseDirectory: __dirname,
-  recommendedConfig: pluginJs.configs.recommended,
-  allConfig: pluginJs.configs.all,
-});
 
 export default [
   {
@@ -38,7 +31,6 @@ export default [
   importPlugin.flatConfigs.errors,
   importPlugin.flatConfigs.typescript,
   qunitPluginRecommended,
-  ...fixupConfigRules(compat.extends('plugin:prettier/recommended')),
   {
     plugins: {
       'ember-internal': emberInternal,

package.json

@@ -52,6 +52,8 @@
     "lint:eslint": "eslint --report-unused-disable-directives --cache .",
     "lint:eslint:fix": "npm-run-all \"lint:eslint --fix\"",
     "lint:fix": "npm-run-all lint:*:fix",
+    "lint:format": "prettier --check .",
+    "lint:format:fix": "prettier --write .",
     "test": "node bin/run-tests.js",
     "test:blueprints": "mocha node-tests/blueprints/**/*-test.js",
     "test:node": "qunit tests/node/**/*-test.js",
@@ -111,8 +113,6 @@
     "@babel/preset-env": "^7.16.11",
     "@babel/types": "^7.22.5",
     "@embroider/shared-internals": "^2.5.0",
-    "@eslint/compat": "^1.2.7",
-    "@eslint/eslintrc": "^3.3.0",
     "@eslint/js": "^9.21.0",
     "@glimmer/component": "workspace:^",
     "@rollup/plugin-babel": "^6.0.4",
@@ -134,13 +134,11 @@
     "ember-cli-dependency-checker": "^3.3.1",
     "ember-cli-yuidoc": "^0.9.1",
     "eslint": "^9.21.0",
-    "eslint-config-prettier": "^9.1.0",
     "eslint-import-resolver-node": "^0.3.7",
     "eslint-plugin-disable-features": "^0.1.3",
     "eslint-plugin-ember-internal": "^3.0.0",
     "eslint-plugin-import": "^2.31.0",
     "eslint-plugin-n": "^17.16.2",
-    "eslint-plugin-prettier": "^4.2.1",
     "eslint-plugin-qunit": "^8.1.2",
     "execa": "^5.1.1",
     "expect-type": "^0.15.0",