Replace ESLint/typescript-eslint with oxlint + tsgolint for TypeScript 7

Co-authored-by: birkskyum <74932975+birkskyum@users.noreply.github.com>

.oxlintrc.json

@@ -0,0 +1,148 @@
+{
+  "$schema": "./node_modules/oxlint/configuration_schema.json",
+  "plugins": ["typescript", "react"],
+  "jsPlugins": ["@stylistic/eslint-plugin"],
+  "categories": {
+    "correctness": "off"
+  },
+  "env": {
+    "builtin": true,
+    "es2024": true
+  },
+  "globals": {
+    "global": "readonly"
+  },
+  "ignorePatterns": ["dist/**"],
+  "options": {
+    "typeAware": true,
+    "reportUnusedDisableDirectives": "warn"
+  },
+  "rules": {
+    "constructor-super": "error",
+    "for-direction": "error",
+    "getter-return": "error",
+    "no-async-promise-executor": "error",
+    "no-case-declarations": "error",
+    "no-class-assign": "error",
+    "no-compare-neg-zero": "error",
+    "no-cond-assign": "error",
+    "no-const-assign": "error",
+    "no-constant-binary-expression": ["error", { "checkRelationalComparisons": false }],
+    "no-constant-condition": "error",
+    "no-control-regex": "error",
+    "no-debugger": "error",
+    "no-delete-var": "error",
+    "no-dupe-class-members": "error",
+    "no-dupe-else-if": "error",
+    "no-dupe-keys": "error",
+    "no-duplicate-case": "error",
+    "no-empty": "error",
+    "no-empty-character-class": "error",
+    "no-empty-pattern": "error",
+    "no-empty-static-block": "error",
+    "no-ex-assign": "error",
+    "no-extra-boolean-cast": "error",
+    "no-fallthrough": "error",
+    "no-func-assign": "error",
+    "no-global-assign": "error",
+    "no-import-assign": "error",
+    "no-invalid-regexp": "error",
+    "no-irregular-whitespace": ["error", {
+      "skipComments": false,
+      "skipJSXText": false,
+      "skipRegExps": false,
+      "skipStrings": true,
+      "skipTemplates": false
+    }],
+    "no-loss-of-precision": "error",
+    "no-misleading-character-class": "error",
+    "no-new-native-nonconstructor": "error",
+    "no-nonoctal-decimal-escape": "error",
+    "no-obj-calls": "error",
+    "no-prototype-builtins": "error",
+    "no-redeclare": "error",
+    "no-regex-spaces": "error",
+    "no-self-assign": "error",
+    "no-setter-return": "error",
+    "no-shadow-restricted-names": "error",
+    "no-sparse-arrays": "error",
+    "no-this-before-super": "error",
+    "no-unassigned-vars": "error",
+    "no-unexpected-multiline": "error",
+    "no-unreachable": "error",
+    "no-unsafe-finally": "error",
+    "no-unsafe-negation": "error",
+    "no-unsafe-optional-chaining": "error",
+    "no-unused-labels": "error",
+    "no-unused-private-class-members": "error",
+    "no-unused-vars": ["warn", {
+      "varsIgnorePattern": "^_",
+      "caughtErrors": "all",
+      "caughtErrorsIgnorePattern": "^_",
+      "argsIgnorePattern": "^_"
+    }],
+    "no-useless-assignment": "error",
+    "no-useless-backreference": "error",
+    "no-useless-catch": "error",
+    "no-useless-escape": "error",
+    "no-with": "error",
+    "preserve-caught-error": "error",
+    "require-yield": "error",
+    "use-isnan": "error",
+    "valid-typeof": "error",
+    "no-array-constructor": "error",
+    "no-unused-expressions": "error",
+    "typescript/ban-ts-comment": "off",
+    "typescript/no-duplicate-enum-values": "error",
+    "typescript/no-empty-object-type": "off",
+    "typescript/no-explicit-any": "off",
+    "typescript/no-extra-non-null-assertion": "error",
+    "typescript/no-misused-new": "error",
+    "typescript/no-namespace": "error",
+    "typescript/no-non-null-asserted-optional-chain": "off",
+    "typescript/no-require-imports": "error",
+    "typescript/no-this-alias": "error",
+    "typescript/no-unnecessary-type-constraint": "error",
+    "typescript/no-unsafe-declaration-merging": "error",
+    "typescript/no-unsafe-function-type": "error",
+    "typescript/no-wrapper-object-types": "error",
+    "typescript/prefer-as-const": "error",
+    "typescript/prefer-namespace-keyword": "error",
+    "typescript/triple-slash-reference": "error",
+    "typescript/consistent-type-imports": ["error", { "fixStyle": "inline-type-imports" }],
+    "react/only-export-components": ["warn", {
+      "allowConstantExport": true,
+      "customHOCs": ["withTranslation"]
+    }],
+    "@stylistic/indent": ["error", 2],
+    "@stylistic/semi": ["error", "always"],
+    "@stylistic/quotes": ["error", "double", { "avoidEscape": true }],
+    "no-var": "error"
+  },
+  "overrides": [
+    {
+      "files": ["**/*.ts", "**/*.tsx", "**/*.mts", "**/*.cts"],
+      "rules": {
+        "constructor-super": "off",
+        "getter-return": "off",
+        "no-class-assign": "off",
+        "no-const-assign": "off",
+        "no-dupe-class-members": "off",
+        "no-dupe-keys": "off",
+        "no-func-assign": "off",
+        "no-import-assign": "off",
+        "no-new-native-nonconstructor": "off",
+        "no-obj-calls": "off",
+        "no-redeclare": "off",
+        "no-setter-return": "off",
+        "no-this-before-super": "off",
+        "no-unreachable": "off",
+        "no-unsafe-negation": "off",
+        "no-with": "off",
+        "prefer-const": "error",
+        "prefer-rest-params": "error",
+        "prefer-spread": "error"
+      }
+    }
+  ]
+}

AGENTS.md

@@ -6,7 +6,7 @@ To get started, install all npm packages:
 npm install
 ```
 
-Verify code correctness by running ESLint:
+Verify code correctness by running Oxlint:
 
 ```
 npm run lint

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ### ✨ Features and improvements
 - Replace Cypress with Playwright for end-to-end tests and Vitest browser mode (Playwright provider) for component tests; drop the `@shellygo/cypress-test-utils` helper in favour of a `MaputnikDriver` page object
+- Upgrade to TypeScript 7 and replace ESLint/typescript-eslint with oxlint (type-aware via `oxlint-tsgolint`), keeping the same lint rules
 - _...Add new stuff here..._
 
 ### 🐞 Bug fixes

eslint.config.js

@@ -1,72 +0,0 @@
-import eslint from "@eslint/js";
-import {defineConfig} from "eslint/config";
-import stylisticTs from "@stylistic/eslint-plugin";
-import tseslint from "typescript-eslint";
-import reactPlugin from "eslint-plugin-react";
-import reactHooksPlugin from "eslint-plugin-react-hooks";
-import reactRefreshPlugin from "eslint-plugin-react-refresh";
-
-export default defineConfig({
-  extends: [
-    eslint.configs.recommended,
-    tseslint.configs.recommended,
-  ],
-  files: ["**/*.{js,jsx,ts,tsx}"],
-  ignores: [
-    "dist/**/*",
-  ],
-  languageOptions: {
-    ecmaVersion: 2024,
-    sourceType: "module",
-    globals: {
-      global: "readonly"
-    }
-  },
-  settings: {
-    react: { version: "18.2" }
-  },
-  plugins: {
-    "react": reactPlugin,
-    "react-hooks": reactHooksPlugin,
-    "react-refresh": reactRefreshPlugin,
-    "@stylistic": stylisticTs
-  },
-  rules: {
-    "react-refresh/only-export-components": [
-      "warn",
-      // Many components are exported as withTranslation()(Component); without
-      // this the rule cannot tell the HOC's result is still a component.
-      { allowConstantExport: true, extraHOCs: ["withTranslation"] }
-    ],
-    "@typescript-eslint/no-explicit-any": "off",
-    "@typescript-eslint/no-unused-vars": [
-      "warn",
-      {
-        varsIgnorePattern: "^_",
-        caughtErrors: "all",
-        caughtErrorsIgnorePattern: "^_",
-        argsIgnorePattern: "^_"
-      }
-    ],
-    "no-unused-vars": "off",
-    "react/prop-types": "off",
-    "no-undef": "off",
-    "indent": "off",
-    "@stylistic/indent": ["error", 2],
-    "semi": "off",
-    "@stylistic/semi": ["error", "always"],
-    "quotes": "off",
-    "@stylistic/quotes": ["error", "double", { avoidEscape: true }],
-    "no-var": "error",
-    "@typescript-eslint/no-non-null-asserted-optional-chain": "off",
-    "@typescript-eslint/ban-ts-comment": "off",
-    "@typescript-eslint/no-empty-object-type": "off",
-    "@typescript-eslint/consistent-type-imports": ["error", { "fixStyle": "inline-type-imports" }],
-
-  },
-  linterOptions: {
-    reportUnusedDisableDirectives: true,
-    noInlineConfig: false
-  }
-}
-);

package.json

@@ -10,7 +10,7 @@
     "build-desktop": "tsc && vite build --mode=desktop && cd desktop && make",
     "build-linux": "tsc && vite build --mode=desktop && cd desktop && make bin/linux/maputnik",
     "i18n:extract": "npx i18next-cli extract",
-    "lint": "eslint",
+    "lint": "oxlint",
     "test": "playwright test",
     "test-e2e": "playwright test",
     "test-unit": "vitest",
@@ -98,7 +98,6 @@
     }
   },
   "devDependencies": {
-    "@eslint/js": "^10.0.1",
     "@istanbuljs/nyc-config-typescript": "^1.0.2",
     "@playwright/test": "^1.62.1",
     "@stylistic/eslint-plugin": "^5.10.0",
@@ -126,14 +125,12 @@
     "@vitejs/plugin-react": "5.2",
     "@vitest/coverage-v8": "^4.1.10",
     "cors": "^2.8.6",
-    "eslint": "^10.8.0",
-    "eslint-plugin-react": "^7.37.5",
-    "eslint-plugin-react-hooks": "^7.1.1",
-    "eslint-plugin-react-refresh": "^0.5.3",
     "i18next-cli": "^1.67.4",
     "istanbul": "^0.4.5",
     "istanbul-lib-coverage": "^3.2.2",
     "nyc": "^18.0.0",
+    "oxlint": "^1.91.0",
+    "oxlint-tsgolint": "^7.0.2005",
     "postcss": "^8.5.25",
     "react-hot-loader": "^4.13.1",
     "sass": "^1.102.0",
@@ -141,7 +138,6 @@
     "stylelint-config-recommended-scss": "^17.0.1",
     "stylelint-scss": "^7.2.0",
     "typescript": "^7.0.2",
-    "typescript-eslint": "^8.66.0",
     "uuid": "^14.0.1",
     "vite": "^7.3.2",
     "vite-plugin-istanbul": "^9.0.1",