hono-template/eslint.config.ts at main · SystemEngineeringTeam/hono-template · GitHub

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import antfu, { perfectionist } from '@antfu/eslint-config';

// ref: https://github.com/antfu/eslint-config/issues/661#issuecomment-2632730969
const perfectionistRules = await perfectionist();

export default antfu({
  ignores: [],
  stylistic: {
    quotes: 'single',
    semi: true,
    overrides: {
      'comma-dangle': ['error', 'always-multiline'],
      'jsonc/comma-dangle': ['error', 'always-multiline'],
      'arrow-body-style': ['error', 'as-needed'],
      'no-restricted-imports': ['error', { patterns: ['../*'] }],
      'unused-imports/no-unused-imports': 'warn',
      'style/arrow-parens': ['error', 'always'],
      'style/brace-style': ['error', '1tbs'],
    },
  },
  typescript: {
    parserOptions: {
      project: ['./tsconfig.json'],
    },
    overrides: {
      'ts/consistent-type-definitions': ['error', 'type'],
      'ts/explicit-function-return-type': ['error'],
      'ts/explicit-member-accessibility': ['error'],
      'ts/naming-convention': [
        'error',
        {
          selector: 'variable',
          format: ['camelCase', 'UPPER_CASE', 'PascalCase'],
          leadingUnderscore: 'allowSingleOrDouble',
        },
      ],
      'ts/no-floating-promises': ['error'],
      'ts/no-misused-promises': ['error'],
      'ts/no-confusing-void-expression': ['error'],
      'ts/strict-boolean-expressions': ['error'],
      'ts/switch-exhaustiveness-check': ['error'],
      'ts/array-type': ['error', { default: 'array-simple' }],
      'ts/no-restricted-types': [
        'error',
        { types: { Omit: 'Use `OmitStrict`.' } },
      ],
      'ts/no-unsafe-argument': 'error',

      // https://typescript-eslint.io/rules/dot-notation/
      'dot-notation': 'off',
      'ts/dot-notation': 'error',
    },
  },
  rules: {
    'antfu/no-top-level-await': 'off',
    'perfectionist/sort-imports': [
      'error',
      {
        // @ts-expect-error: import のソート順序の決定を perfectionist に任せる
        ...perfectionistRules[0].rules['perfectionist/sort-imports'][1],
        environment: 'bun',
      },
    ],
  },
  formatters: true,
  isInEditor: false,
});