chore: ESLint 9 (#1728)

Author: mdjastrzebski

.codecov.yml

@@ -3,6 +3,9 @@ coverage:
   round: down
   range: 70...100
   status:
+    patch:
+      default:
+        target: 80% # Required patch coverage target
     project:
       default:
         threshold: 0.5%  # Allowable coverage drop in percentage points

.eslintignore

@@ -0,0 +1,35 @@
+import tseslint from 'typescript-eslint';
+import callstackConfig from '@callstack/eslint-config/react-native.flat.js';
+
+export default [
+  {
+    ignores: [
+      'flow-typed/',
+      'build/',
+      'experiments-rtl/',
+      'website/',
+      'eslint.config.mjs',
+      'jest-setup.ts',
+    ],
+  },
+  ...callstackConfig,
+  ...tseslint.configs.strict,
+  {
+    rules: {
+      'no-console': 'error',
+    },
+  },
+  {
+    files: ['**/*.test.{ts,tsx}', 'src/test-utils/**'],
+    rules: {
+      'react/no-multi-comp': 'off',
+      'react-native/no-color-literals': 'off',
+      'react-native/no-inline-styles': 'off',
+      'react-native/no-raw-text': 'off',
+      'react-native-a11y/has-valid-accessibility-descriptors': 'off',
+      'react-native-a11y/has-valid-accessibility-ignores-invert-colors': 'off',
+      'react-native-a11y/has-valid-accessibility-value': 'off',
+      '@typescript-eslint/no-explicit-any': 'off',
+    },
+  },
+];

.eslintrc

@@ -73,25 +73,24 @@
     "@babel/preset-typescript": "^7.26.0",
     "@callstack/eslint-config": "^15.0.0",
     "@react-native/babel-preset": "0.77.0-rc.0",
-    "@release-it/conventional-changelog": "^9.0.2",
+    "@release-it/conventional-changelog": "^10.0.0",
     "@relmify/jest-serializer-strip-ansi": "^1.0.2",
     "@types/jest": "^29.5.14",
     "@types/react": "^18.3.12",
     "@types/react-test-renderer": "^18.3.0",
     "babel-jest": "^29.7.0",
     "babel-plugin-module-resolver": "^5.0.2",
     "del-cli": "^6.0.0",
-    "eslint": "^8.57.1",
-    "eslint-plugin-prettier": "^4.2.1",
+    "eslint": "^9.17.0",
     "flow-bin": "~0.170.0",
     "jest": "^29.7.0",
     "prettier": "^2.8.8",
     "react": "18.3.1",
     "react-native": "0.77.0-rc.0",
     "react-test-renderer": "18.3.1",
     "release-it": "^18.0.0",
-    "strip-ansi": "^6.0.1",
-    "typescript": "^5.6.3"
+    "typescript": "^5.6.3",
+    "typescript-eslint": "^8.19.1"
   },
   "publishConfig": {
     "registry": "https://registry.npmjs.org"

eslint.config.mjs

@@ -288,6 +288,7 @@ exports[`debug with only props from TextInput components 1`] = `
 exports[`debug: another custom message 1`] = `
 "another custom message
 
+
 <View>
   <Text>
     Is the banana fresh?
@@ -370,6 +371,7 @@ exports[`debug: another custom message 1`] = `
 exports[`debug: with message 1`] = `
 "my custom message
 
+
 <View>
   <Text>
     Is the banana fresh?

package.json

@@ -4,6 +4,7 @@ import { View } from 'react-native';
 let render: (element: React.ReactElement) => void;
 beforeAll(() => {
   process.env.RNTL_SKIP_AUTO_CLEANUP = 'true';
+  // eslint-disable-next-line @typescript-eslint/no-require-imports
   const rntl = require('..');
   render = rntl.render;
 });

src/__tests__/__snapshots__/render-debug.test.tsx.snap

@@ -1,4 +1,3 @@
-/* eslint-disable react/no-multi-comp */
 import * as React from 'react';
 import { View } from 'react-native';
 import { cleanup, render } from '../pure';

src/__tests__/auto-cleanup-skip.test.tsx

@@ -4,7 +4,7 @@ import { render, screen, userEvent } from '..';
 
 type QuestionsBoardProps = {
   questions: string[];
-  onSubmit: (obj: {}) => void;
+  onSubmit: (obj: object) => void;
 };
 
 jest.useFakeTimers();