Brunch.io release config strategy : http://hackerpreneur.net/post/40039506659/brunch-io-release-config-build

config.coffee

exports.config =
  files:
    javascripts:
      joinTo:
        'javascripts/app.js': /^app/
        'javascripts/vendor.js': /^vendor/
        'test/javascripts/test.js': /^test[\\/](?!vendor)/
        'test/javascripts/test-vendor.js': /^test[\\/](?=vendor)/
      order:
        before: [
          'vendor/scripts/console-helper.js',
          'vendor/scripts/jquery-1.8.2.js',
          'vendor/scripts/underscore-1.4.2.js',
          'vendor/scripts/backbone-0.9.2.js'
        ]
        after: [
          'test/vendor/scripts/test-helper.js'
        ]

    stylesheets:
      joinTo:
        'stylesheets/app.css': /^(app|vendor)/
        'test/stylesheets/test.css': /^test/
      order:
        before: ['vendor/styles/normalize-2.0.1.css']
        after: ['vendor/styles/helpers.css']

    templates:
      joinTo: 'javascripts/app.js'
      
# See http://brunch.readthedocs.org/en/latest/config.html for documentation.

config.release.coffee

{config} = require './config'

config.files.javascripts.joinTo =
  # (1) Exclude the stubs files in release build using (?!stubs)/ at end of regex
  'javascripts/app.js': /^app(\/|\\)(?!stubs)/
  'javascripts/vendor.js': /^vendor/
  # (2) Removed generated test files from the release build
  # 'test/javascripts/test.js': /^test(\/|\\)(?!vendor)/
  # 'test/javascripts/test-vendor.js': /^test(\/|\\)(?=vendor)/

exports.config = config