Update embark.json with bower.json dependencies

Gruntfile.js

const wiredep = require('wiredep');

module.exports = function initGrunt(grunt) {
  grunt.initConfig({
    embark: grunt.file.readJSON('embark.json'),
  });

  grunt.registerTask('addDeps', 'Adds JS dependencies to embark config', function () {
    const deps = wiredep();
    const embark = grunt.config('embark');

    grunt.verbose.writeln('CSS deps are:', deps.css);
    embark.app['css/app.css'] = deps.css || [];
    embark.app['css/app.css'].push('app/css/**');

    grunt.verbose.writeln('JS deps are:', deps.js);
    embark.app['js/app.js'] = deps.js || [];
    embark.app['js/app.js'].push('embark.js');
    embark.app['js/app.js'].push('app/js/**');

    grunt.file.write('embark.json', JSON.stringify(embark, null, 2));
    grunt.log.ok('Updated CSS + JS deps in embark.json');
  }); 
};

Simple Grunt script to update embark.json based on dependencies in bower.json