.eslintrc.js

/**
 * MIT License
 *
 * Copyright (c) 2020-present, Elastic NV
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */

/* eslint-disable @typescript-eslint/no-var-requires */
const { readFileSync } = require('fs');

const LICENSE = readFileSync('./LICENSE', 'utf-8');
const LICENSE_HEADER =
  '/**\n' +
  LICENSE.split('\n')
    .map(line => ` *${line ? ` ${line}` : ''}`)
    .join('\n') +
  '\n */';

module.exports = {
  env: {
    es6: true,
    node: true,
  },
  parserOptions: {
    ecmaVersion: 2018,
    sourceType: 'module',
  },
  parser: '@typescript-eslint/parser',
  plugins: ['@typescript-eslint'],
  extends: ['plugin:@typescript-eslint/recommended'],
  rules: {
    '@typescript-eslint/no-unused-vars': 2,
    '@typescript-eslint/explicit-function-return-type': 0,
    '@typescript-eslint/no-empty-function': 0,
    '@typescript-eslint/explicit-module-boundary-types': 0,
    '@typescript-eslint/no-explicit-any': 0,
    '@typescript-eslint/member-delimiter-style': 0,
    '@typescript-eslint/ban-ts-comment': 0,
    'require-license-header': [
      'error',
      {
        license: LICENSE_HEADER,
      },
    ],
  },
};