Phoenix Gulpfile.coffee (Sass/CoffeeScript)

gistfile1.coffee

# Gulpfile.js
# // Note the new way of requesting CoffeeScript since 1.7.x
# require('coffee-script/register');
# // This bootstraps your Gulp's main file
# require('./Gulpfile.coffee');


# assets
# ├── Gulpfile.coffee
# ├── Gulpfile.js
# ├── package.json
# ├── node_modules/  (auto generated)
# ├── cs/
# └── sass/
#
# Setup:
# $ cd my_app/assets
# $ npm install -g gulp
# $ npm install
# $ gulp watch

gulp       = require 'gulp'
sass       = require 'gulp-ruby-sass'
coffee     = require 'gulp-coffee'
concat     = require 'gulp-concat'

gulp.task 'watch', ->
  gulp.watch 'sass/**/*.sass', ['css']
  gulp.watch 'cs/**/*.coffee', ['coffee']

gulp.task 'css', ->
  gulp.src 'sass/app.sass'
    .pipe sass()
    .pipe gulp.dest '../priv/static/css'

gulp.task 'coffee', ->
  gulp.src 'cs/**/*.coffee'
    .pipe coffee()
    .pipe concat('app.js')
    .pipe gulp.dest '../priv/static/js'


gulp.task 'default', ['css', 'coffee']

Maybe because I don't have coffee-script install globally

Or I got this error

Error: Cannot find module 'coffee-script/register'
    at Function.Module._resolveFilename (module.js:338:15)
    at Function.Module._load (module.js:280:25)
    at Module.require (module.js:364:17)
    at require (module.js:380:17)
    at Object.<anonymous> (/Users/myers/p/sheep_phoenix/assets/Gulpfile.js:2:1)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Module.require (module.js:364:17)

You may need to install coffee-script with npm's --save-dev flag:
npm install --save-dev coffee-script

Now require("coffee-script/register"); should work in your gulpfile.js