chore(deps-dev): migrate ESLint to v9 with flat config

eslint.config.mjs

@@ -0,0 +1,135 @@
+import eslintCommentsConfigs from '@eslint-community/eslint-plugin-eslint-comments/configs';
+import prettier from 'eslint-config-prettier';
+import arrayFunc from 'eslint-plugin-array-func';
+import importPlugin from 'eslint-plugin-import';
+import jestPlugin from 'eslint-plugin-jest';
+import jestFormatting from 'eslint-plugin-jest-formatting';
+import n from 'eslint-plugin-n';
+import noSecrets from 'eslint-plugin-no-secrets';
+import optimizeRegex from 'eslint-plugin-optimize-regex';
+import promise from 'eslint-plugin-promise';
+import security from 'eslint-plugin-security';
+import simpleImportSort from 'eslint-plugin-simple-import-sort';
+import sonarjs from 'eslint-plugin-sonarjs';
+import switchCase from 'eslint-plugin-switch-case';
+import globals from 'globals';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(
+  { ignores: ['dist/**', 'coverage/**'] },
+
+  tseslint.configs.recommended,
+  tseslint.configs.recommendedTypeChecked,
+
+  n.configs['flat/recommended'],
+
+  sonarjs.configs.recommended,
+
+  arrayFunc.configs.all,
+
+  eslintCommentsConfigs.recommended,
+
+  promise.configs['flat/recommended'],
+
+  security.configs.recommended,
+
+  importPlugin.flatConfigs.recommended,
+  importPlugin.flatConfigs.typescript,
+
+  {
+    plugins: {
+      'no-secrets': noSecrets,
+      'optimize-regex': optimizeRegex,
+      'simple-import-sort': simpleImportSort,
+      'switch-case': switchCase,
+    },
+    languageOptions: {
+      ecmaVersion: 2019,
+      sourceType: 'module',
+      globals: {
+        ...globals.es2020,
+        ...globals.node,
+      },
+      parserOptions: {
+        project: 'tsconfig.json',
+      },
+    },
+    settings: {
+      node: {
+        tryExtensions: ['.js', '.json', '.ts'],
+        allowModules: [
+          'ts-jest',
+          'supertest',
+          'jest-mock-extended',
+          'pactum',
+          '@faker-js/faker',
+          'fast-check',
+        ],
+      },
+      'import/parsers': {
+        '@typescript-eslint/parser': ['.ts', '.tsx'],
+      },
+      'import/resolver': {
+        typescript: {
+          alwaysTryTypes: true,
+        },
+      },
+    },
+    rules: {
+      'switch-case/newline-between-switch-case': 'error',
+      'switch-case/no-case-curly': 'error',
+      'optimize-regex/optimize-regex': [
+        'warn',
+        { blacklist: ['charClassClassrangesMerge'] },
+      ],
+      'no-secrets/no-secrets': 'error',
+      '@typescript-eslint/no-deprecated': 'warn',
+      'n/no-unsupported-features/es-syntax': [
+        'error',
+        { ignores: ['modules', 'nullish-coalescing-operators'] },
+      ],
+      'n/no-missing-import': 'off',
+      'simple-import-sort/imports': 'error',
+      'simple-import-sort/exports': 'error',
+      'import/first': 'error',
+      'import/newline-after-import': 'error',
+      'import/no-duplicates': 'error',
+      // Disable rules that are new in upgraded plugins and were not in the previous config
+      // These require author intervention to address
+      '@typescript-eslint/only-throw-error': 'off',
+      'sonarjs/slow-regex': 'off',
+      'sonarjs/no-hardcoded-secrets': 'off',
+      'sonarjs/no-hardcoded-passwords': 'off',
+      'sonarjs/assertions-in-tests': 'off',
+    },
+  },
+
+  prettier,
+
+  {
+    files: ['**/*.js', '**/*.cjs', '**/*.mjs'],
+    ...tseslint.configs.disableTypeChecked,
+  },
+
+  {
+    files: ['**/*.spec.ts'],
+    ...jestPlugin.configs['flat/recommended'],
+    ...jestPlugin.configs['flat/style'],
+    plugins: {
+      ...jestPlugin.configs['flat/recommended'].plugins,
+      'jest-formatting': jestFormatting,
+    },
+    rules: {
+      ...jestPlugin.configs['flat/recommended'].rules,
+      ...jestPlugin.configs['flat/style'].rules,
+      'jest-formatting/padding-around-all': 'error',
+      'jest/expect-expect': [
+        'warn',
+        {
+          assertFunctionNames: ['expect', 'request.**.expect', '**.expect\\w+'],
+        },
+      ],
+      '@typescript-eslint/no-unsafe-assignment': 'off',
+    },
+  },
+);