chore: use eslint flat config

.gitignore

@@ -6,6 +6,17 @@ node_modules/
 *.pem
 tsconfig.tsbuildinfo
 .env
+**/$*.ts
 
 # debug
 npm-debug.log*
+
+# client
+client/.next/
+client/out/
+client/api/*
+**/*.css.d.ts*
+
+# server
+server/index.js*
+server/coverage/

client/package.json

@@ -6,17 +6,12 @@
     "dev:client": "next dev -p 3000",
     "dev:hcm": "hcm '**/*.module.css' -w",
     "dev:aspida": "aspida --watch",
-    "dev:path": "pathpida --ignorePath .gitignore -s -w",
+    "dev:path": "pathpida --ignorePath ../.gitignore -s -w",
     "build": "npm run generate && next build",
     "start": "sh -c \"next start -p $(($PORT + 1))\"",
-    "lint": "run-p lint:js lint:prettier lint:style",
-    "lint:js": "eslint --ext .ts,.tsx,.js --ignore-path .gitignore .",
-    "lint:prettier": "prettier --check \"./**/*.{ts,tsx,js}\" --ignore-path .gitignore",
-    "lint:style": "stylelint \"**/*.css\" --ignore-path .gitignore",
-    "lint:fix": "npm run lint:js -- --fix && prettier --write \"./**/*.{ts,tsx,js}\" --ignore-path .gitignore && npm run lint:style -- --fix",
     "generate": "run-p generate:*",
     "generate:aspida": "aspida",
-    "generate:path": "pathpida --ignorePath .gitignore -s",
+    "generate:path": "pathpida --ignorePath ../.gitignore -s",
     "hcm": "hcm '**/*.module.css'",
     "test": "vitest run",
     "test:watch": "vitest",

eslint.config.mjs

@@ -0,0 +1,76 @@
+import js from '@eslint/js';
+import gitignore from 'eslint-config-flat-gitignore';
+import prettierConfig from 'eslint-config-prettier';
+import reactPlugin from 'eslint-plugin-react';
+import globals from 'globals';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(
+  { files: ['**/*.(ts,js,tsx)'] },
+  gitignore(),
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+  {
+    languageOptions: {
+      globals: {
+        ...globals.browser,
+        ...globals.node,
+        ...globals.es2020,
+      },
+    },
+    plugins: {
+      react: reactPlugin,
+    },
+    settings: {
+      react: {
+        version: 'detect',
+      },
+    },
+    rules: {
+      eqeqeq: 'error',
+      'no-param-reassign': 'error',
+      'object-shorthand': ['error', 'always'],
+      'prefer-template': 'error',
+      '@typescript-eslint/consistent-type-imports': 'error',
+      '@typescript-eslint/explicit-module-boundary-types': 'off',
+      '@typescript-eslint/no-non-null-assertion': 'error',
+      '@typescript-eslint/no-explicit-any': 'error',
+      complexity: ['error', 5],
+      'max-depth': ['error', 2],
+      'max-nested-callbacks': ['error', 3],
+      'max-lines': ['error', 200],
+      '@typescript-eslint/no-unused-vars': [
+        'warn',
+        {
+          argsIgnorePattern: '^_',
+          varsIgnorePattern: '^_',
+          caughtErrorsIgnorePattern: '^_',
+          destructuredArrayIgnorePattern: '^_',
+        },
+      ],
+    },
+  },
+  {
+    files: ['*.tsx'],
+    rules: {
+      'react/react-in-jsx-scope': 'off',
+      'react/prop-types': 'off',
+      'react/self-closing-comp': 'error',
+      'react-hooks/rules-of-hooks': 'error',
+      'react-hooks/exhaustive-deps': 'error',
+    },
+  },
+  {
+    files: ['server/**/*.ts'],
+    rules: { '@typescript-eslint/explicit-function-return-type': ['error'] },
+  },
+  {
+    files: ['server/api/**/controller.ts', 'server/api/**/hooks.ts'],
+    rules: { '@typescript-eslint/explicit-function-return-type': ['off'] },
+  },
+  {
+    files: ['**/*.js'],
+    rules: { '@typescript-eslint/no-var-requires': ['off'] },
+  },
+  prettierConfig,
+);