'use strict';

function getPromise() {
	var util = require('util');
	var PromiseA;
	if (util.promisify && global.Promise) {
		PromiseA = global.Promise;
		PromiseA.promisify = util.promisify;
	} else {
		try {
			PromiseA = require('bluebird');
		} catch (e) {
			console.error(
				'Your version of node is missing Promise. Please run `npm install --save bluebird` in your project to fix'
			);
			process.exit(10);
		}
	}
	return PromiseA;
}

module.exports = getPromise();