migrate to ESLint flat config

Author: progfay

.eslintignore

@@ -1,4 +1,4 @@
 lib
 esm
 umd
-.eslintrc.js
+eslint.config.js

.eslintrc.js

@@ -0,0 +1,34 @@
+import globals from "globals";
+import eslint from "@eslint/js";
+import tsEslint from "typescript-eslint";
+import eslintConfigPrettier from "eslint-config-prettier";
+import eslintPluginJest from "eslint-plugin-jest";
+
+/** @type {import("eslint").Linter.FlatConfig[]} */
+export default tsEslint.config(
+  {
+    ignores: ["lib/**", "esm/**", "umd/**"],
+    extends: [
+      eslint.configs.recommended,
+      ...tsEslint.configs.recommended,
+      eslintConfigPrettier,
+    ],
+    languageOptions: {
+      globals: {
+        ...globals.jest,
+      },
+      parser: tsEslint.parser,
+      parserOptions: {
+        sourceType: "module",
+        project: "./tsconfig.eslint.json",
+      },
+    },
+    plugins: {
+      "@typescript-eslint": tsEslint.plugin,
+    },
+  },
+  {
+    files: ["**/tests/**/*.test.ts"],
+    ...eslintPluginJest.configs["flat/recommended"],
+  },
+);

eslint.config.js

@@ -1,4 +1,4 @@
-module.exports = {
+export default {
   moduleFileExtensions: ["ts", "js"],
   transform: {
     "^.+\\.(ts|tsx)$": "ts-jest",

jest.config.js renamed to jest.config.mjs

@@ -1,6 +1,7 @@
 {
   "name": "@progfay/scrapbox-parser",
   "version": "9.0.0",
+  "type": "module",
   "description": "parse Scrapbox notation to JavaScript Object",
   "files": [
     "lib",
@@ -28,12 +29,12 @@
     "test:update": "jest --updateSnapshot --no-cache",
     "lint": "run-p lint:*",
     "lint:prettier": "prettier --check .",
-    "lint:eslint": "eslint -c ./.eslintrc.js .",
+    "lint:eslint": "eslint .",
     "lint:cspell": "cspell --no-summary '**/*'",
     "lint:typescript": "tsc -p ./tsconfig.eslint.json",
     "format": "run-s format:prettier format:eslint",
     "format:prettier": "prettier --write .",
-    "format:eslint": "eslint --fix -c ./.eslintrc.js ."
+    "format:eslint": "eslint --fix ."
   },
   "repository": {
     "type": "git",
@@ -53,10 +54,9 @@
     "@babel/core": "7.24.7",
     "@babel/preset-env": "7.24.7",
     "@types/core-js": "2.5.8",
+    "@types/eslint": "8.56.10",
     "@types/jest": "29.5.12",
     "@types/node": "20.14.10",
-    "@typescript-eslint/eslint-plugin": "7.16.0",
-    "@typescript-eslint/parser": "7.16.0",
     "babel-loader": "9.1.3",
     "cspell": "8.10.4",
     "eslint": "8.57.0",
@@ -69,6 +69,7 @@
     "ts-jest": "29.2.2",
     "ts-loader": "9.5.1",
     "typescript": "5.5.3",
+    "typescript-eslint": "7.16.0",
     "webpack": "5.92.1",
     "webpack-cli": "5.1.4"
   },

package-lock.json

@@ -1,9 +1,11 @@
-module.exports = {
+import path from "node:path";
+
+export default {
   mode: "production",
   entry: "./src/index.ts",
   output: {
     // eslint-disable-next-line @typescript-eslint/no-var-requires
-    path: require("path").resolve(__dirname, "umd"),
+    path: path.resolve(import.meta.dirname, "umd"),
     filename: "scrapbox-parser.js",
     library: "ScrapboxParser",
     libraryTarget: "umd",