Update ESLint to v9

.vscode/settings.json

@@ -8,9 +8,6 @@
   "editor.formatOnSave": true,
   "editor.insertSpaces": true,
   "editor.tabSize": 2,
-  "eslint.options": {
-    "reportUnusedDisableDirectives": true
-  },
   "files.eol": "\n",
   "files.insertFinalNewline": true,
   "files.trimFinalNewlines": true,

bench/index.ts

@@ -35,6 +35,7 @@ function generateCrc32TableBranchless(polynomial: number) {
 
 function crcUpdateNaive(prev: number, polynomial: number, data: Uint8Array): number {
   let r = prev;
+  // eslint-disable-next-line @typescript-eslint/prefer-for-of
   for (let i = 0; i < data.length; i++) {
     r ^= data[i]!;
     r = ((r & 1) * polynomial) ^ (r >>> 1);

eslint.config.cjs

@@ -0,0 +1,38 @@
+// @ts-check
+
+const foxglove = require("@foxglove/eslint-plugin");
+const globals = require("globals");
+const tseslint = require("typescript-eslint");
+
+module.exports = tseslint.config(
+  {
+    ignores: ["**/dist/"],
+  },
+  {
+    languageOptions: {
+      globals: {
+        ...globals.browser,
+        ...globals.node,
+      },
+      parserOptions: {
+        project: "tsconfig.eslint.json",
+      },
+    },
+    rules: {
+      "no-restricted-syntax": [
+        "error",
+        {
+          selector: 'BinaryExpression[operator=">>"]',
+          message:
+            "When working with unsigned numbers, use the unsigned right shift operator `>>>`.",
+        },
+      ],
+    },
+  },
+  ...foxglove.configs.base,
+  ...foxglove.configs.jest,
+  ...foxglove.configs.typescript.map((config) => ({
+    ...config,
+    files: ["**/*.@(ts|tsx)"],
+  })),
+);

package.json

@@ -28,36 +28,30 @@
     "clean": "rimraf dist *.tsbuildinfo",
     "prepack": "tsc -b tsconfig.json tsconfig.cjs.json",
     "build": "tsc -b tsconfig.json tsconfig.cjs.json",
-    "lint": "eslint --report-unused-disable-directives --fix .",
-    "lint:ci": "eslint --report-unused-disable-directives .",
+    "lint": "eslint --fix .",
+    "lint:ci": "eslint .",
     "bench": "ts-node --project tsconfig.cjs.json bench/index.ts",
     "test": "jest"
   },
-  "dependencies": {},
   "devDependencies": {
-    "@foxglove/eslint-plugin": "0.22.1",
+    "@foxglove/eslint-plugin": "2.0.0",
     "@foxglove/tsconfig": "2.0.0",
     "@types/crc": "3.8.3",
     "@types/jest": "29.5.12",
-    "@typescript-eslint/eslint-plugin": "5.62.0",
-    "@typescript-eslint/parser": "5.62.0",
+    "@types/node": "22.7.9",
     "benny": "3.7.1",
     "crc": "4.3.2",
     "crc-32": "1.2.2",
-    "eslint": "8.57.1",
-    "eslint-config-prettier": "8.10.0",
-    "eslint-plugin-es": "4.1.0",
-    "eslint-plugin-filenames": "1.3.2",
-    "eslint-plugin-import": "2.30.0",
-    "eslint-plugin-jest": "28.8.3",
-    "eslint-plugin-prettier": "4.2.1",
+    "eslint": "9.13.0",
+    "globals": "15.11.0",
     "jest": "29.7.0",
     "node-crc": "3.0.2",
     "polycrc": "1.1.1",
-    "prettier": "2.8.8",
+    "prettier": "3.3.3",
     "rimraf": "6.0.1",
     "ts-jest": "29.2.5",
     "ts-node": "10.9.2",
-    "typescript": "5.6.3"
+    "typescript": "5.6.3",
+    "typescript-eslint": "8.10.0"
   }
 }