Load all grunt tasks and load grunt config from a directory and set of files

loadGruntConfigAndDependencies.js

loadGruntConfigAndDependencies('./initConfig/');

    function loadGruntConfigAndDependencies (files) {
        require('matchdep').filterDev('grunt-*').forEach(grunt.loadNpmTasks);
        grunt.initConfig(loadConfig(files));
    }

    function loadConfig(files) {
        var path = require('path'),
            object = {};

        grunt.file.recurse(files, function callback(abspath, rootdir, subdir, filename) {
            var name = path.basename(filename, path.extname(filename)),
                required = require(path.resolve('.', abspath));

            if (_.isFunction(required)) {
                required = required(grunt);
            }
            object[name] = required;
        });

        return object;
    }