gulp with object files key as dest and array as source - gruntjs

Question

I've got this json file
{
"vendor":{
"css": {
"public/build/css/vendor.min.css": [
"public/bower_components/bootstrap/dist/css/bootstrap.min.css"
]
},
"js": {
"public/build/js/vendor.min.js": [
"public/bower_components/lodash/dist/lodash.min.js",
"public/bower_components/jquery/dist/jquery.min.js",
"public/bower_components/bootstrap/dist/js/bootstrap.min.js",
"public/bower_components/angular/angular.min.js",
"public/bower_components/angular-ui-router/release/angular-ui-router.min.js",
"public/bower_components/restangular/dist/restangular.min.js"
]
}
},
"scripts":{
"css": {
"public/build/css/scripts.min.css": [
"public/*/assets/css/*.css"
]
},
"js": {
"public/build/js/scripts.min.js": [
"public/init.js",
"public/system/system.js",
"public/system/controllers/*.js",
"public/system/directives/*.js",
"public/system/filters/*.js",
"public/system/routes/*.js",
"public/system/services/*.js",
"public/users/users.js",
"public/users/controllers/*.js",
"public/users/directives/*.js",
"public/users/routes/*.js",
"public/users/services/*.js"
]
}
}
}
my grunt file
'use strict';
var paths = {
js: ['Gruntfile.js', 'tasks/laravel.js', 'public/**/*.js', '!public/build/**', '!public/bower_components/**'],
html: ['public/**/views/**'],
css: ['public/**/assets/css/*.css', '!public/bower_components/**'],
php: ['app/**/*.php', '!vendor/**']
};
module.exports = function(grunt) {
require('time-grunt')(grunt);
// Project Configuration
grunt.initConfig({
pkg: grunt.file.readJSON('package.json'),
assets: grunt.file.readJSON('app/config/assets.json'),
clean: ['public/build'],
watch: {
css: {
files: paths.css,
tasks: ['csslint'],
options: {
livereload: true
}
},
html: {
files: paths.html,
options: {
livereload: true
}
},
js: {
files: paths.js,
tasks: ['jshint'],
options: {
livereload: true
}
},
php: {
files: paths.php,
options: {
livereload: true
}
}
},
jshint: {
all: {
src: paths.js,
options: {
jshintrc: true
}
}
},
csslint: {
options: {
csslintrc: '.csslintrc'
},
src: paths.css
},
laravel:{
dist:{}
},
concurrent: {
tasks: ['laravel', 'watch'],
options: {
logConcurrentOutput: true
}
},
concat:{
productionCssVendor:{
files: '<%= assets.vendor.css %>',
nonull: true
},
productionJsVendor:{
files: '<%= assets.vendor.js %>',
nonull: true
}
},
cssmin: {
productionScripts: {
files: '<%= assets.scripts.css %>'
}
},
uglify: {
options: {
mangle: false
},
productionScripts: {
files: '<%= assets.scripts.js %>'
}
}
});
grunt.loadTasks('tasks');
require('load-grunt-tasks')(grunt);
grunt.registerTask('default', ['jshint','concurrent']);
grunt.registerTask('prod', ['clean', 'concat', 'cssmin','uglify']);
};
how can I get the same thing with gulp for instance for concat and uglify ?
better than this :(
var fs = require('fs');
var assets = JSON.parse(fs.readFileSync('app/config/assets.json', 'utf8'));
var jsVendor = Object.keys(assets.vendor.js);
var srcJsVendor = assets.vendor.js[jsVendor[0]];
var chunks = jsVendor[0].split('/');
var concatFilename = chunks.pop();
gulp.task('concat', function() {
return gulp.src(srcJsVendor)
.pipe(concat(concatFilename))
.pipe(gulp.dest(chunks.join('/')+'/'))
.pipe(notify({ message: 'Scripts task complete' }));
});