# Configuration - Boost

![build status](https://img.shields.io/github/actions/workflow/status/milesj/boost/build.yml)
![npm version](https://img.shields.io/npm/v/@boost/config)

Powerful convention based finder, loader, and manager of both configuration and ignore files.

```ts
import { Blueprint, Schemas } from '@boost/common';
import { Configuration } from '@boost/config';

interface ConfigFile {
  debug: boolean;
  sourceMaps: boolean;
}

class ConfigManager extends Configuration<ConfigFile> {
  blueprint({ bool }: Schemas): Blueprint<ConfigFile> {
    return {
      debug: bool(),
      sourceMaps: bool(),
    };
  }
}

const configManager = new ConfigManager('boost');

// Load `.config/boost.js`, `boost.production.json`, `.boost.yaml`, etc
const { config } = await configManager.loadConfigFromRoot('.');

// Load `.boostignore` files
const ignore = await configManager.loadIgnoreFromBranchToRoot('./some/deep/path');
```

## Features

- Loads root configs (`.config/<name>.js`) and branch configs (`.<name>.js`).
- Loads ignore files (`.<name>ignore`).
- Supports multiple config types: `js`, `cjs`, `mjs`, `json`, `yaml`
- Supports environment and root-level based overrides.
- Supports extending from other config files.
- Finds files within each branch folder while traversing up the tree.
- Caches finder results for increased efficiency.
- Custom key-value setting processors.

## Installation

```
yarn add @boost/config
```

## Documentation

- [https://boostlib.dev/docs/config](https://boostlib.dev/docs/config)
- [https://boostlib.dev/api/config](https://boostlib.dev/api/config)