gulpfile.js

"use strict";

var gulp = require('gulp');
var gutil = require('gulp-util');
var sourcemaps = require('gulp-sourcemaps');
var source = require('vinyl-source-stream');
var buffer = require('vinyl-buffer');
var watchify = require('watchify');
var browserify = require('browserify');
var livereload = require('gulp-livereload');
var to5 = require('gulp-6to5');

var bundler = watchify(browserify(
    './src/mediabank.js', watchify.args
));

// add any other browserify options or transforms here
bundler.transform('reactify');
bundler.on('update', bundle); // on any dep update, runs the bundler

function bundle() {
  livereload.listen();
  return bundler.bundle()
    // log errors if they happen
    .on('error',
        gutil.log.bind(gutil, 'Browserify Error'
    ))
    .pipe(source('bundle.js'))
    .pipe(buffer())
    .pipe(to5())
    .pipe(sourcemaps.init({loadMaps: true})) // loads map from browserify file
    .pipe(sourcemaps.write('./')) // writes .map file
    .pipe(gulp.dest('./../php-app/js/'))
    .pipe(livereload());
}

gulp.task('watch', bundle);
gulp.task('default', ['watch']);