gulpでcoffee,jade,stylusを変換するやつ

gulpfile.coffee

# 人生初gulpfile

gulp = require "gulp"
coffee = require "gulp-coffee"
jade = require "gulp-jade"
stylus = require "gulp-stylus"
del = require "del"

paths =
  coffee: 'src/coffee/*.coffee'
  jade: 'src/jade/*.jade'
  stylus: 'src/stylus/*.styl'

dists =
  js: 'app/js'
  html: 'app'
  css: 'app/css'

# 削除タスク
gulp.task 'clean', (cb)->
  del ['app'], cb

# Coffeeのコンパイル
gulp.task 'coffee', ->
  gulp.src paths.coffee
    .pipe coffee bare:true
    .pipe gulp.dest dists.js

# Jadeのコンパイル
gulp.task 'jade', ->
  gulp.src paths.jade
    .pipe jade pretty:true
    .pipe gulp.dest dists.html

# stylusのコンパイル
gulp.task 'stylus', ->
  gulp.src paths.stylus
    .pipe stylus {}
    .pipe gulp.dest dists.css

# watch
gulp.task 'watch', ->
  gulp.watch paths.coffee, ['coffee']
  gulp.watch paths.jade, ['jade']
  gulp.watch paths.stylus, ['stylus']

# 起動時の対応
gulp.task 'default', ['clean','coffee','jade','stylus','watch']

$ gulp --require coffee-script

ってやれば動くはず