chore: Update TypeScript ESLint (#6051)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

eslint.config.mjs

@@ -17,6 +17,7 @@ export default tsEslint.config(
     ...tsEslint.configs.recommended,
     // unicorn.configs['flat/recommended'],
     {
+        ignores: ['**/*.json'],
         plugins: {
             unicorn,
         },
@@ -226,6 +227,14 @@ export default tsEslint.config(
         rules: {
             'unicorn/prefer-module': 'off',
             '@typescript-eslint/no-var-requires': 'off',
+            '@typescript-eslint/no-require-imports': 'off',
+        },
+    },
+    {
+        files: ['**/*.json'],
+        rules: {
+            '@typescript-eslint/no-unused-expressions': 'off',
+            'unicorn/no-null': 'off',
         },
     },
     {
@@ -252,11 +261,26 @@ export default tsEslint.config(
             'unicorn/no-useless-undefined': 'off', // undefined is allowed in tests
         },
     },
+    {
+        files: ['**/*.{ts,mts,cts}'],
+        rules: {
+            // Turn off for now
+            '@typescript-eslint/no-unused-expressions': 'off',
+            '@typescript-eslint/no-empty-object-type': 'off',
+        },
+    },
+    {
+        files: ['**/*.test.{ts,mts,cts}', '**/*.spec.ts'],
+        rules: {
+            '@typescript-eslint/no-unused-expressions': 'off',
+        },
+    },
     {
         files: ['**/vitest.config.*', '**/jest.config.*', '**/__mocks__/**'],
         rules: {
-            'n/no-extraneous-require': 'off',
+            '@typescript-eslint/no-require-imports': 'off',
             'n/no-extraneous-import': 'off',
+            'n/no-extraneous-require': 'off',
             'no-undef': 'off',
             'unicorn/prefer-module': 'off',
         },

package.json

@@ -110,8 +110,6 @@
     "@vitest/coverage-istanbul": "^2.0.5",
     "conventional-changelog-conventionalcommits": "^8.0.0",
     "eslint": "^9.8.0",
-    "eslint-import-resolver-typescript": "^3.6.1",
-    "eslint-plugin-jest": "^28.7.0",
     "eslint-plugin-n": "^17.10.2",
     "eslint-plugin-simple-import-sort": "^12.1.1",
     "eslint-plugin-unicorn": "^55.0.0",
@@ -127,7 +125,7 @@
     "ts2mjs": "^3.0.0",
     "tslib": "^2.6.3",
     "typescript": "^5.5.4",
-    "typescript-eslint": "^7.18.0",
+    "typescript-eslint": "^8.0.1",
     "vite": "^5.3.5",
     "vitest": "^2.0.5"
   }

packages/cspell-eslint-plugin/package.json

@@ -84,8 +84,8 @@
     "@types/eslint": "^8.56.11",
     "@types/estree": "^1.0.5",
     "@types/mocha": "^10.0.7",
-    "@typescript-eslint/parser": "^7.18.0",
-    "@typescript-eslint/types": "^7.18.0",
+    "@typescript-eslint/parser": "^8.0.1",
+    "@typescript-eslint/types": "^8.0.1",
     "eslint": "^9.8.0",
     "eslint-plugin-jsonc": "^2.16.0",
     "eslint-plugin-mdx": "^3.1.5",
@@ -98,7 +98,7 @@
     "mocha": "^10.7.0",
     "ts-json-schema-generator": "^2.3.0",
     "typescript": "^5.5.4",
-    "typescript-eslint": "^7.18.0",
+    "typescript-eslint": "^8.0.1",
     "yaml-eslint-parser": "^1.2.3"
   },
   "dependencies": {

packages/cspell-types/src/features.ts

@@ -11,13 +11,23 @@ export interface FeaturesExperimental {
 /**
  * These are the current set of active features
  */
-export interface FeaturesActive {}
+export interface FeaturesActive {
+    /**
+     * @hidden
+     */
+    featureName?: boolean;
+}
 
 /**
  * These are feature settings that have been deprecated or moved elsewhere they will have no
  * effect on the code but are here to prevent schema errors. The will get cleaned out on major versions.
  */
-export interface FeaturesDeprecated {}
+export interface FeaturesDeprecated {
+    /**
+     * @hidden
+     */
+    featureName?: boolean;
+}
 
 /**
  * Features are behaviors or settings that can be explicitly configured.

packages/cspell-types/src/types.ts

@@ -1,7 +1,6 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
-/* eslint-disable @typescript-eslint/ban-types */
 
-export type Serialize<T> = T extends Function
+export type Serialize<T> = T extends () => void
     ? never
     : T extends null
       ? null