update packages and typescript config

Author: gracepark

lib/configs/flat/typescript.js

@@ -1,40 +1,27 @@
-const {FlatCompat} = require('@eslint/eslintrc')
+const eslint = require('@eslint/js')
+const tseslint = require('typescript-eslint')
+const escompatPlugin = require('eslint-plugin-escompat')
+const github = require('../../plugin')
 
-const compat = new FlatCompat({resolvePluginsRelativeTo: __dirname})
-
-const typescriptModule = {
-  ...compat.config({
-    extends: ['plugin:@typescript-eslint/recommended', 'prettier', 'plugin:escompat/typescript-2020'],
-    plugins: ['@typescript-eslint', 'escompat'],
-    parser: '@typescript-eslint/parser',
-    rules: {
-      camelcase: 'off',
-      'no-unused-vars': 'off',
-      'no-shadow': 'off',
-      'no-invalid-this': 'off',
-      '@typescript-eslint/no-invalid-this': ['error'],
-      '@typescript-eslint/no-shadow': ['error'],
-      '@typescript-eslint/interface-name-prefix': 'off',
-      '@typescript-eslint/array-type': ['error', {default: 'array-simple'}],
-      '@typescript-eslint/no-use-before-define': 'off',
-      '@typescript-eslint/explicit-member-accessibility': 'off',
-      '@typescript-eslint/explicit-function-return-type': 'off',
-      '@typescript-eslint/no-non-null-assertion': 'off',
-      '@typescript-eslint/no-unused-vars': 'error',
-      '@typescript-eslint/explicit-module-boundary-types': 'off',
-    },
-  }),
-}
-// Need to merge to get the appropriate structure for the config
-const mergedConfig = {}
-
-for (const obj of Object.values(typescriptModule)) {
-  Object.assign(mergedConfig, {
-    languageOptions: {...mergedConfig.languageOptions, ...obj.languageOptions},
-    plugins: {...mergedConfig.plugins, ...obj.plugins},
-    rules: {...mergedConfig.rules, ...obj.rules},
-    files: [...(mergedConfig.files || []), ...(obj.files || [])],
-  })
-}
-
-module.exports = mergedConfig
+module.exports = tseslint.config(eslint.configs.recommended, ...tseslint.configs.recommended, {
+  languageOptions: {
+    parser: tseslint.parser,
+  },
+  plugins: {'@typescript-eslint': tseslint.plugin, escompatPlugin, github},
+  rules: {
+    camelcase: 'off',
+    'no-unused-vars': 'off',
+    'no-shadow': 'off',
+    'no-invalid-this': 'off',
+    '@typescript-eslint/no-invalid-this': ['error'],
+    '@typescript-eslint/no-shadow': ['error'],
+    '@typescript-eslint/interface-name-prefix': 'off',
+    '@typescript-eslint/array-type': ['error', {default: 'array-simple'}],
+    '@typescript-eslint/no-use-before-define': 'off',
+    '@typescript-eslint/explicit-member-accessibility': 'off',
+    '@typescript-eslint/explicit-function-return-type': 'off',
+    '@typescript-eslint/no-non-null-assertion': 'off',
+    '@typescript-eslint/no-unused-vars': 'error',
+    '@typescript-eslint/explicit-module-boundary-types': 'off',
+  },
+})