eslint-config-amply/index.js

A baseline eslint config for all Amply projects.

module.exports = {
    parser: 'babel-eslint',
    env: {
        browser: true,
        es6: true
    },
    plugins: ['jsdoc', 'prettier'],
    extends: [
        'airbnb-base',
        require.resolve('./rules/whitespace'),
        require.resolve('./rules/prettier'),
        require.resolve('./rules/jsdoc'),
        require.resolve('./rules/general'),
        'prettier',
        'plugin:prettier/recommended'
    ],
    settings: {
        'import/resolver': {
            node: {
                extensions: ['.js', '.jsx', '.ts', '.tsx']
            }
        },
        'import/extensions': ['.js', '.mjs', '.jsx', '.ts', '.tsx']
    },
    rules: {
        'class-methods-use-this': 0,
        'no-restricted-syntax': [
            'error',
            {
                selector: 'ForInStatement',
                message:
                    'for..in loops iterate over the entire prototype chain, which is virtually never what you want. Use Object.{keys,values,entries}, and iterate over the resulting array.'
            },
            {
                selector: 'LabeledStatement',
                message:
                    'Labels are a form of GOTO; using them makes code confusing and hard to maintain and understand.'
            },
            {
                selector: 'WithStatement',
                message:
                    '`with` is disallowed in strict mode because it makes code impossible to predict and optimize.'
            }
        ],
        'prefer-destructuring': [2, { array: false, object: true }],
        'import/prefer-default-export': 0,
        'import/no-extraneous-dependencies': [
            'error',
            {
                devDependencies: true,
                optionalDependencies: true,
                peerDependencies: true
            }
        ]
    },
    overrides: [
        {
            files: ['*.ts', '*.tsx'],
            rules: {
                'no-undef': 0,
                'no-unused-vars': 0,
                '@typescript-eslint/no-unused-vars': 2,
                'import/extensions': [
                    'error',
                    'ignorePackages',
                    {
                        js: 'never',
                        mjs: 'never',
                        jsx: 'never',
                        ts: 'never',
                        tsx: 'never'
                    }
                ],
                'jsdoc/require-param-type': 0,
                indent: ['error', 4],
                'react/jsx-indent': ['error', 4],
                'react/jsx-indent-props': ['error', 4]
            }
        }
    ]
};