Upgraded eslint and switched to other license header plugin.

demo/demo.ts

@@ -1,5 +1,7 @@
-// Copyright Dirk Lemstra https://github.com/dlemstra/magick-wasm.
-// Licensed under the Apache License, Version 2.0.
+/*
+  Copyright Dirk Lemstra https://github.com/dlemstra/magick-wasm.
+  Licensed under the Apache License, Version 2.0.
+*/
 
 import { readFileSync } from 'node:fs';
 import {

eslint.config.mjs

@@ -0,0 +1,64 @@
+import js from "@eslint/js";
+import path from "node:path";
+import pluginLicenseHeader from "eslint-plugin-license-header";
+import pluginTypescriptEslint from "@typescript-eslint/eslint-plugin";
+import tsParser from "@typescript-eslint/parser";
+import { fileURLToPath } from "node:url";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+    baseDirectory: __dirname,
+    recommendedConfig: js.configs.recommended,
+    allConfig: js.configs.all
+});
+
+export default [{
+    ignores: [
+        "**/dist",
+        "deno/*.ts",
+        "demo/*.js",
+        "issue/*.ts",
+        "issue/*.js",
+        "tools/*.js",
+        "**/vite.config.ts",
+    ],
+}, ...compat.extends(
+    "eslint:recommended",
+    "plugin:@typescript-eslint/eslint-recommended",
+    "plugin:@typescript-eslint/recommended",
+), {
+    plugins: {
+        "@eslint-plugin-license-header": pluginLicenseHeader,
+        "@typescript-eslint": pluginTypescriptEslint,
+    },
+
+    languageOptions: {
+        parser: tsParser,
+        ecmaVersion: 5,
+        sourceType: "script",
+
+        parserOptions: {
+            project: [
+                "./tsconfig.json",
+                "./demo/tsconfig.json",
+                "./tests/tsconfig.json",
+                "./tools/tsconfig.json",
+            ],
+        },
+    },
+
+    rules: {
+        "@eslint-plugin-license-header/header": [
+            "error",
+            [
+                "/*",
+                "  Copyright Dirk Lemstra https://github.com/dlemstra/magick-wasm.",
+                "  Licensed under the Apache License, Version 2.0.",
+                "*/",
+            ]
+        ],
+        "@typescript-eslint/no-duplicate-enum-values": "off",
+    },
+}];

issue/issue.ts

@@ -1,5 +1,7 @@
-// Copyright Dirk Lemstra https://github.com/dlemstra/magick-wasm.
-// Licensed under the Apache License, Version 2.0.
+/*
+  Copyright Dirk Lemstra https://github.com/dlemstra/magick-wasm.
+  Licensed under the Apache License, Version 2.0.
+*/
 
 import { readFileSync, writeFileSync } from 'node:fs';
 import { initializeImageMagick, ImageMagick } from '@imagemagick/magick-wasm';