Lilconfig ⚙️

A zero-dependency alternative to cosmiconfig with the same API.

Installation

npm install lilconfig

Usage

import {lilconfig, lilconfigSync} from 'lilconfig';

// all keys are optional
const options = {
    stopDir: '/Users/you/some/dir',
    searchPlaces: ['package.json', 'myapp.conf.js'],
    ignoreEmptySearchPlaces: false
}

lilconfig(
    'myapp',
    options // optional
).search() // Promise<LilconfigResult>

lilconfigSync(
    'myapp',
    options // optional
).load(pathToConfig) // LilconfigResult

/**
 * LilconfigResult
 * {
 *   config: any; // your config
 *   filepath: string;
 * }
 */

Difference to `cosmiconfig`

Lilconfig does not intend to be 100% compatible with cosmiconfig but tries to mimic it where possible. The key differences are:

no support for yaml files out of the box(lilconfig attempts to parse files with no extension as JSON instead of YAML). You can still add the support for YAML files by providing a loader, see an example below.
no cache

Options difference between the two.

cosmiconfig option	lilconfig
cache	❌
loaders	✅
ignoreEmptySearchPlaces	✅
packageProp	✅
searchPlaces	✅
stopDir	✅
transform	✅

Loaders example

If you need the YAML support you can provide your own loader

import {lilconig} from 'lilconfig';
import yaml from 'yaml';

const options = {
    loaders: {
        '.yaml': (filepath, content) => {
            return yaml.parse(content);
        },
        // loader for files with no extension
        noExt: (filepath, content) => {
            return yaml.parse(content);
        }
    }
};

lilconfig('myapp', options)
    .search()
    .then(result => {
        result // {config, filepath}
    });

Version correlation

lilconig v1 → cosmiconfig v6
lilconig v2 → cosmiconfig v7

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