temptest/gulp/backbone.js

'use strict';
const gulp = require('gulp');
const browserify = require('gulp-browserify');
const rename = require('gulp-rename');

const buffer = require('vinyl-buffer');
const sourcemaps = require('gulp-sourcemaps');

gulp.task('bundleBackbone', function() {
  // Single entry point to browserify
  gulp.src(['./src/backbone/js/app.js'])
    .pipe(browserify({
      'insertGlobals' : true,
      'debug' : true
    }))
    .pipe(buffer())
  // optional, remove if you dont want sourcemaps
    .pipe(sourcemaps.init({ 'loadMaps': true })) // loads map from browserify file
  // Add transformation tasks to the pipeline here.
    .pipe(sourcemaps.write('./src/backbone/')) // writes .map file
    .pipe(rename('bundle.js'))
    // .pipe(uglify())
    .pipe(gulp.dest('./src/backbone/'));
});

gulp.task('buildBackbone', ['bundleBackbone'], function() {
  gulp.watch('src/backbone/js/**/*.js', ['bundleBackbone']);
});