roster-server/vendor/greenlock-express/lib/compat.js

👾 RosterServer - A domain host router to host multiple HTTPS.

"use strict";

var log = require("lemonlog")("greenlock-compat");

function requireBluebird() {
    try {
        return require("bluebird");
    } catch (e) {
        log.error("");
        log.error("DON'T PANIC. You're running an old version of node with incomplete Promise support.");
        log.error("EASY FIX: `npm install --save bluebird`");
        log.error("");
        throw e;
    }
}

if ("undefined" === typeof Promise) {
    global.Promise = requireBluebird();
}

if ("function" !== typeof require("util").promisify) {
    require("util").promisify = requireBluebird().promisify;
}

if (!console.debug) {
    console.debug = function() {
        log.debug.apply(log, arguments);
    };
}

var fs = require("fs");
var fsAsync = {};
Object.keys(fs).forEach(function(key) {
    var fn = fs[key];
    if ("function" !== typeof fn || !/[a-z]/.test(key[0])) {
        return;
    }
    fsAsync[key] = require("util").promisify(fn);
});

exports.fsAsync = fsAsync;