gulpfile

var gulp = require('gulp'); 

var zip = require('gulp-zip');
var rename = require("gulp-rename");
var shell = require('gulp-shell')

gulp.task('nodewk', function() {
     gulp.src('app/**')
        .pipe(zip('app.zip'))
        .pipe(rename("app.wk"))
        .pipe(gulp.dest('build'))
        .pipe(shell([
            'nw  <%= file.path %>'
            
        ]));
});

// Default Task
gulp.task('default', ["nodewk"]);