gulpfile(s). the string parsing in `tasks/bundle.js` is left over from a previous grunt file.

bundle.js

/**
 * Bundles clientside code and aliases controllers. Uses `public/js/init.js` 
 * as the main entry point.
 *
 * @param {object} grunt - Grunt instance.
 *
 * @author Derek Reynolds <drk@diy.org>
 * @package admin
 */

/**
 * Dependencies
 */
var browserify = require('gulp-browserify');
var concat = require('gulp-concat');
var glob = require('glob');

module.exports = function (gulp) {
    return function (callback) {
        var req = [];
        var controllerList  = glob.sync('controllers/*.js');
        var viewList        = glob.sync('views/*/index.js');

        for (var c = 0; c < controllerList.length; c++) {
            var calias = controllerList[c].split('/').pop().replace('.js', '');
            req.push({
                cat: 'controller',
                path: __dirname + '/../' + controllerList[c],
                alias: calias
            });
        }

        for (var v = 0; v < viewList.length; v++) {
            var split = viewList[v].split('/');
            var valias = split[split.length - 2];
            req.push({
                cat: 'view',
                path: __dirname + '/../' + viewList[v],
                alias: valias
            });
        }

        var alias = function (b) {
            for (var r = 0; r < req.length; r++) {
                b.require(
                    req[r].path, { 
                        expose: req[r].cat + '-' + req[r].alias,
                        baseDir: __dirname + '/../' + req[r].cat + 's'
                    }
                );
            }
        };

        var prebundle = function (b) {
            alias(b);
            b.transform('envify'); // hook up process.env variables
            b.transform('brfs'); // clientside templates
        };

        gulp.src('public/js/init.js', { buffer: false })
            .pipe(browserify({ baseDir: __dirname + '/..' })
                .on('prebundle', prebundle))
            .pipe(concat('bundle.js'))
            .pipe(gulp.dest('public/build/js'));

        gulp.src('public/build/js/bundle.js')
            .pipe(concat('build.min.js'))
            .pipe(gulp.dest('public/build/js'));

        callback(null);
    };
};

css.css

/**
 * Compiles public/css/stylesheet.less for clientside consumption.
 *
 * @author Derek Reynolds <drk@diy.org>
 * @package admin
 */

/**
 * Dependencies
 */
var concat = require('gulp-concat');
var prefix = require('gulp-autoprefixer');
var less = require('gulp-less');

/**
 * Exports
 */
module.exports = function (gulp) {
    return function (callback) {
        gulp.src('public/css/stylesheet.less')
            .pipe(less())
            .pipe(prefix('last 1 version', 'ie 9', 'ie 8'))
            .pipe(concat('build.min.css'))
            .pipe(gulp.dest('public/build/css'));

        callback(null);
    };
};

gulpfile.js

/**
 * Main task runner.
 *
 * @author Derek Reynolds <drk@diy.org>
 * @package admin
 */

/**
 * Dependencies
 */
var gulp = require('gulp');
var nodemon = require('gulp-nodemon');

require('./lib/environment')();

/**
 * Imported tasks
 */
gulp.task('bundle', require('./tasks/bundle')(gulp));
gulp.task('css', require('./tasks/css')(gulp));

/**
 * Copy fonts from diy-core-styles in to build directory for dev
 */
gulp.task('fonts', function () {
    gulp.src('node_modules/diy-core-styles/public/fonts/*')
        .pipe(gulp.dest('public/build/fonts'));
});

/**
 * Default task that will watch clientside js and less and build 
 * respectively for each file type.
 *
 * Run: `gulp`
 */
gulp.task('default', function () {
    gulp.watch(
        ['views/**/*.js', 'views/**/*.html', 'controllers/*.js'], 
        function () {
            gulp.run('bundle');
        }
    );

    gulp.watch('public/css/**/*.less', function () {
        gulp.run('css');
    });

    // Nodemon - restart server
    gulp.src('index.js').pipe(nodemon());
});