Node config module

index.js

"use strict";

const { readFileSync } = require("fs")
const { parse } = require("json5")
const { merge } = require("lodash")

module.exports = merge({},
  // Global defaults
  requireConfig("defaults"),
  // Environment defaults
  requireConfig(process.env.NODE_ENV || "production"),
  // Local configuration
  requireConfig("local"),
  // Environement variable overrides
  {
    port: process.env.PORT
  }
);

function requireConfig (file) {
  try {
    return parse(readFileSync(__dirname + "/" + file + ".json"));
  } catch (e) {
    console.warn('WARN: ignored config file "%s.json": %s', file, e.message); // eslint-disable-line no-console
    return {};
  }
}