This config loader allows multiple nested configs that inherit from a parent. The root config, all.js, is loaded first. Then, for each item in a hyphen-separated NODE_ENV, an extra config is merged in.
E.g:
- NODE_ENV = dev: Files loaded = all.js, dev.js
- NODE_ENV = test-unit: Files loaded = all.js, test.js, test-unit.js
var configLayered = require('config-layered')
// default: load config from ./config directory
var config = configLayered();
// specified folder: load config fron specific folder
config = configLayered('configuration');