Initial commit

packages/config/eslint/index.js

@@ -0,0 +1,68 @@
+import js from '@eslint/js';
+import tseslint from 'typescript-eslint';
+import { fixupPluginRules } from '@eslint/compat';
+import reactPlugin from 'eslint-plugin-react';
+import reactHooksPlugin from 'eslint-plugin-react-hooks';
+import jsxA11yPlugin from 'eslint-plugin-jsx-a11y';
+
+/** Base ESLint config for all TS packages (no React). */
+export const base = tseslint.config(
+    js.configs.recommended,
+    ...tseslint.configs.recommended,
+    {
+        rules: {
+            '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_' }],
+            '@typescript-eslint/no-explicit-any': 'error',
+            '@typescript-eslint/explicit-function-return-type': 'off',
+            '@typescript-eslint/consistent-type-imports': [
+                'error',
+                { prefer: 'type-imports', fixStyle: 'inline-type-imports' },
+            ],
+            'no-console': 'warn',
+            'no-restricted-imports': [
+                'error',
+                {
+                    patterns: [
+                        {
+                            regex: '^(\\.+/[^\'"]*)\\.(js|jsx|ts|tsx)$',
+                            message:
+                                'Use extensionless imports. Import from "./module" instead of "./module.js".',
+                        },
+                    ],
+                },
+            ],
+        },
+    },
+    {
+        ignores: ['**/dist/**', '**/generated/**', '**/.next/**', '**/node_modules/**'],
+    },
+);
+
+/**
+ * ESLint config for React/Next.js packages.
+ *
+ * `fixupPluginRules` wraps ESLint 9-era plugins for ESLint 10 compatibility.
+ */
+export const react = tseslint.config(...base, {
+    plugins: {
+        react: fixupPluginRules(reactPlugin),
+        'react-hooks': fixupPluginRules(reactHooksPlugin),
+        'jsx-a11y': fixupPluginRules(jsxA11yPlugin),
+    },
+    settings: {
+        react: { version: 'detect' },
+    },
+    rules: {
+        'react/react-in-jsx-scope': 'off',
+        'react/prop-types': 'off',
+        'react-hooks/rules-of-hooks': 'error',
+        'react-hooks/exhaustive-deps': 'warn',
+        'jsx-a11y/alt-text': 'error',
+        'jsx-a11y/aria-props': 'error',
+        'jsx-a11y/aria-role': 'error',
+        'jsx-a11y/interactive-supports-focus': 'warn',
+        'jsx-a11y/label-has-associated-control': 'error',
+    },
+});
+
+export default base;