add prettier

.eslintrc.json

@@ -2,7 +2,7 @@
   "env": {
     "node": true
   },
-  "extends": "airbnb-base",
+  "extends": ["airbnb-base", "plugin:prettier/recommended"],
 
   "overrides": [
     {

.prettierrc.js

@@ -0,0 +1,5 @@
+'use strict';
+
+module.exports = {
+  singleQuote: true,
+};

index.js

@@ -1,3 +1,4 @@
+/* eslint-disable prettier/prettier */
 const { readFileSync, writeFileSync, lstatSync } = require('fs');
 const { join } = require('path');
 const importCwd = require('import-cwd');

package.json

@@ -20,13 +20,18 @@
     "chai": "^4.3.4",
     "eslint": "^7.32.0",
     "eslint-config-airbnb-base": "^14.2.1",
+    "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-import": "^2.25.2",
+    "eslint-plugin-prettier": "^5.2.1",
     "execa": "^6.0.0",
     "find-up": "^6.3.0",
     "fixturify": "^2.1.1",
     "import-meta-resolve": "^2.1.0",
+    "lint-to-the-future": "^2.1.0",
+    "lint-to-the-future-eslint": "file:.",
     "mocha": "^9.1.3",
     "pkg-up": "^4.0.0",
+    "prettier": "^3.3.3",
     "release-it": "^14.11.6",
     "temp": "^0.9.4"
   },

test/fixtures/list/index.js

@@ -1,6 +1,4 @@
 /* eslint-disable no-unused-vars, prefer-const, quotes, semi  */
-let unused = "face";
+let unused = 'face';
 
-let b = () => {
-
-}
+let b = () => {};

test/fixtures/list/next-line-ignore.js

@@ -1,7 +1,5 @@
 /* eslint-disable no-unused-vars, quotes, semi */
-const unused = "face";
+const unused = 'face';
 
 // eslint-disable-next-line prefer-const
-let b = () => {
-
-}
+let b = () => {};

test/ignore.mjs

@@ -1,3 +1,4 @@
+/* eslint-disable prettier/prettier */
 import { expect } from 'chai';
 import temp from 'temp';
 import fixturify from 'fixturify';

test/list.mjs

@@ -1,3 +1,4 @@
+/* eslint-disable prettier/prettier */
 import { expect } from 'chai';
 
 // eslint-disable-next-line import/extensions