apeman-need/lib/apeman_need.js

"use strict";

var argx = require('argx'),
    apemanfile = require('apemanfile'),
    checkNeeds = require('./checking/check_needs'),
    extend = require('extend'),
    async = require('async');

/** @lends apemanNeed */
function apemanNeed(options, callback) {
    var args = argx(arguments);
    callback = args.pop('function') || argx.noop;
    options = args.pop('object') || {};
    var configuration = options.configuration || process.cwd();
    async.waterfall([
        function (callback) {
            apemanfile.load(configuration, {
                asis: true
            }, callback);
        },
        function (apemanfile, callback) {
            async.waterfall([
                function (callback) {
                    apemanfile.find('$needs', callback);
                },
                function (parent, callback) {
                    var result = {};
                    result = extend(result, parent);
                    var $children = apemanfile.$children || {};
                    Object.keys($children).forEach(function (key) {
                        var $child = $children[key];
                        result = extend(result, $child.$needs || {});
                    });
                    callback(null, result);
                }
            ], callback);
        },
        function (needs, callback) {
            checkNeeds(needs, callback);
        }
    ], callback);
}

module.exports = apemanNeed;