Migrating from eslintrc.json to eslint.config.js

eslint.config.mjs

@@ -0,0 +1,196 @@
+import react from 'eslint-plugin-react';
+import typescriptEslint from '@typescript-eslint/eslint-plugin';
+import jest from 'eslint-plugin-jest';
+import _import from 'eslint-plugin-import';
+import tsdoc from 'eslint-plugin-tsdoc';
+import prettier from 'eslint-plugin-prettier';
+import { fixupPluginRules } from '@eslint/compat';
+import globals from 'globals';
+import tsParser from '@typescript-eslint/parser';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import js from '@eslint/js';
+import { FlatCompat } from '@eslint/eslintrc';
+
+const fileName = fileURLToPath(import.meta.url);
+const dirName = path.dirname(fileName);
+const compat = new FlatCompat({
+  baseDirectory: dirName,
+  recommendedConfig: js.configs.recommended,
+  allConfig: js.configs.all,
+});
+
+export default [
+  {
+    ignores: [
+      '**/*.css',
+      '**/*.scss',
+      '**/*.less',
+      '**/*.json',
+      'src/components/CheckIn/tagTemplate.ts',
+      '**/package.json',
+      '**/package-lock.json',
+      '**/tsconfig.json',
+    ],
+  },
+  ...compat.extends(
+    'plugin:react/recommended',
+    'eslint:recommended',
+    'plugin:jest/recommended',
+    'plugin:prettier/recommended',
+    'plugin:@typescript-eslint/recommended',
+    'prettier',
+  ),
+  {
+    plugins: {
+      react,
+      '@typescript-eslint': typescriptEslint,
+      jest,
+      import: fixupPluginRules(_import),
+      tsdoc,
+      prettier,
+    },
+
+    languageOptions: {
+      globals: {
+        ...globals.browser,
+        ...globals.node,
+        Atomics: 'readonly',
+        SharedArrayBuffer: 'readonly',
+      },
+
+      parser: tsParser,
+      ecmaVersion: 2018,
+      sourceType: 'module',
+
+      parserOptions: {
+        ecmaFeatures: {
+          jsx: true,
+        },
+      },
+    },
+
+    settings: {
+      react: {
+        version: 'detect',
+      },
+    },
+
+    rules: {
+      'react/destructuring-assignment': 'error',
+      '@typescript-eslint/explicit-module-boundary-types': 'error',
+
+      'react/no-multi-comp': [
+        'error',
+        {
+          ignoreStateless: false,
+        },
+      ],
+
+      'react/jsx-filename-extension': [
+        'error',
+        {
+          extensions: ['.tsx'],
+        },
+      ],
+
+      'import/no-duplicates': 'error',
+      'tsdoc/syntax': 'error',
+      '@typescript-eslint/ban-ts-comment': 'error',
+      '@typescript-eslint/no-unused-vars': 'error',
+      '@typescript-eslint/no-explicit-any': 'error',
+      '@typescript-eslint/no-inferrable-types': 'error',
+      '@typescript-eslint/no-non-null-asserted-optional-chain': 'error',
+      '@typescript-eslint/no-non-null-assertion': 'error',
+      '@typescript-eslint/no-var-requires': 'error',
+      '@typescript-eslint/no-unsafe-function-type': 'error',
+      '@typescript-eslint/no-wrapper-object-types': 'error',
+      '@typescript-eslint/no-empty-object-type': 'error',
+      '@typescript-eslint/no-duplicate-enum-values': 'error',
+      '@typescript-eslint/array-type': 'error',
+      '@typescript-eslint/consistent-type-assertions': 'error',
+      '@typescript-eslint/consistent-type-imports': 'error',
+
+      '@typescript-eslint/explicit-function-return-type': [
+        2,
+        {
+          allowExpressions: true,
+          allowTypedFunctionExpressions: true,
+        },
+      ],
+
+      camelcase: 'off',
+
+      '@typescript-eslint/naming-convention': [
+        'error',
+        {
+          selector: 'interface',
+          format: ['PascalCase'],
+          prefix: ['Interface', 'TestInterface'],
+        },
+        {
+          selector: ['typeAlias', 'typeLike', 'enum'],
+          format: ['PascalCase'],
+        },
+        {
+          selector: 'typeParameter',
+          format: ['PascalCase'],
+          prefix: ['T'],
+        },
+        {
+          selector: 'variable',
+          format: ['camelCase', 'UPPER_CASE', 'PascalCase'],
+          leadingUnderscore: 'allow',
+        },
+        {
+          selector: 'parameter',
+          format: ['camelCase'],
+          leadingUnderscore: 'allow',
+        },
+        {
+          selector: 'function',
+          format: ['camelCase', 'PascalCase'],
+        },
+        {
+          selector: 'memberLike',
+          modifiers: ['private'],
+          format: ['camelCase'],
+          leadingUnderscore: 'require',
+        },
+        {
+          selector: 'variable',
+          modifiers: ['exported'],
+          format: null,
+        },
+      ],
+
+      'react/jsx-pascal-case': [
+        'error',
+        {
+          allowAllCaps: false,
+          allowNamespace: false,
+        },
+      ],
+
+      'react/jsx-equals-spacing': ['warn', 'never'],
+      'react/no-this-in-sfc': 'error',
+      'jest/expect-expect': 0,
+
+      'react/no-unstable-nested-components': [
+        'error',
+        {
+          allowAsProps: true,
+        },
+      ],
+
+      'react/function-component-definition': [
+        0,
+        {
+          namedComponents: 'function-declaration',
+        },
+      ],
+
+      'prettier/prettier': 'error',
+    },
+  },
+];