gulpfile.js

'use strict';

var gulp = require('gulp');
var browserify = require('browserify');
var source = require('vinyl-source-stream');
var buffer = require('vinyl-buffer');
var uglify = require('gulp-uglify');
var coffeeify = require('coffeeify');
var shim = require('browserify-shim');

gulp.task('scripts', function() {
  var b = browserify('./app.coffee', {
    extensions: ['.js', '.coffee', '.html']
  });

  b.transform({ global: true }, coffeeify);
  b.transform({ global: true }, shim);

  return b.bundle()
    .on('error', function(error) {
      this.emit('end');
    })
    .pipe(source('app.js'))
    .pipe(buffer())
    .pipe(uglify())
    .pipe(gulp.dest('./public/'))
});