Just a, stupid, simple executable coffeescript that'll serve up a folder on your filesystem

simpleAssServer.coffee

#!/usr/bin/env coffee

sys = require "sys"
http = require "http"
url = require "url"
path = require "path"
fs = require "fs"

argv = process.argv

init = () ->
  if !argv[2] or argv[2] is '-h'
    usage()
  else
    target = path.normalize argv[2] + '/'
    runServer(target)

usage = () ->
  console.log """-----------------------------------------------------------------------------------
                 Ohai there.
                 I don't know shit about fuck, when it comes to software engineering 
                 (I'm a front end dev who likes to dabble...) but, I figured I'd share 
                 a simple script I quickly got working that serves up static files on 
                 your file system through node.
                 
                 Usage, clearly you're running this with the coffee REPL or you've 
                 already $chmod +x filename.coffee, so I won't go there. 
                 
                 Just pass the path you'd like to serve up as an argument and the thing should work.
                 
                 i.e. $ ./simpleAssServer.coffee ~/Desktop/testProject
                 -----------------------------------------------------------------------------------
              """

runServer = (target) ->
  http.createServer((request, response) ->
    uri = url.parse(request.url).pathname
    filename = path.join(target, uri)
  
    path.exists filename, (exists) ->
      unless exists
        response.writeHead 404, "Content-Type": "text/plain"
        response.write "404 Not Found\n"
        response.end()
        return
      fs.readFile filename, "binary", (err, file) ->
        if err
          response.writeHead 500, "Content-Type": "text/plain"
          response.write err + "\n"
          response.end()
          return
        response.writeHead 200
        response.write file, "binary"
        response.end()
  ).listen 8080

  sys.puts "Server running at http://localhost:8080/"

init()