Switching to ESLint v9

eslint.config.js

@@ -0,0 +1,52 @@
+import globals from "globals";
+import tsPlugin from "@typescript-eslint/eslint-plugin";
+import prettierPlugin from "eslint-plugin-prettier";
+import prettierRecommended from "eslint-plugin-prettier/recommended";
+import prettierConfig from "eslint-config-prettier";
+import importPlugin from "eslint-plugin-import";
+import unicornPlugin from "eslint-plugin-unicorn";
+import tsParser from "@typescript-eslint/parser";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const compat = new FlatCompat();
+
+export default [
+  ...compat.extends("airbnb-typescript/base"),
+  prettierConfig,
+  prettierRecommended,
+  {
+    files: ["**/*.ts", "*.config.js", "*.config.ts"],
+    languageOptions: {
+      ecmaVersion: "latest",
+      sourceType: "module",
+      globals: globals.node,
+      parser: tsParser,
+      parserOptions: {
+        project: true,
+      },
+    },
+    plugins: {
+      "@typescript-eslint": tsPlugin,
+      prettier: prettierPlugin,
+      import: importPlugin,
+      unicorn: unicornPlugin,
+    },
+    rules: {
+      "@typescript-eslint/lines-between-class-members": "off",
+      "sort-imports": ["warn", { ignoreDeclarationSort: true }],
+      "unicorn/prefer-node-protocol": "error",
+    },
+  },
+  {
+    files: [
+      "tools/*.ts",
+      "tests/**/*.ts",
+      "tsup.config.ts",
+      "example/*.ts",
+      "eslint.config.js",
+    ],
+    rules: {
+      "import/no-extraneous-dependencies": "off",
+    },
+  },
+];

package.json

@@ -134,12 +134,12 @@
     "@types/ramda": "^0.30.0",
     "@types/swagger-ui-express": "^4.1.6",
     "@types/triple-beam": "^1.3.2",
-    "@typescript-eslint/eslint-plugin": "^7.1.0",
-    "@typescript-eslint/parser": "^7.1.0",
+    "@typescript-eslint/eslint-plugin": "^8.0.0-alpha.10",
+    "@typescript-eslint/parser": "^8.0.0-alpha.10",
     "@vitest/coverage-istanbul": "^1.5.0",
     "compression": "^1.7.4",
     "cors": "^2.8.5",
-    "eslint": "^8.48.0",
+    "eslint": "^9.3.0",
     "eslint-config-airbnb-base": "^15.0.0",
     "eslint-config-airbnb-typescript": "^18.0.0",
     "eslint-config-prettier": "^9.0.0",

src/common-helpers.ts

@@ -181,7 +181,7 @@ export const tryToTransform = <T>(
 ) => {
   try {
     return typeof schema.parse(sample);
-  } catch (e) {
+  } catch {
     return undefined;
   }
 };

tsconfig.json

@@ -14,6 +14,7 @@
     "tests/*.ts",
     "tools",
     "*.config.ts",
-    "*.setup.ts"
+    "*.setup.ts",
+    "eslint.config.js"
   ],
 }