Cakefile that creates a self rebooting server on file change

Cakefile

fs = require 'fs'

{print} = require 'sys'
{spawn, fork} = require 'child_process'

processes = {}


process.on "exit", ->
  for k, p of processes
    p.kill()
  return

addFuncs = (child) ->
  child.stderr.on 'data', (data) -> process.stderr.write data.toString()
  
  child.stdout.on 'data', (data) -> print data.toString()

build = ->
  processes.build_coffee = spawn 'coffee', ['-c', '-o', 'app/scripts/main.coffee', 'server.coffee']
  addFuncs(processes.build_coffee)

watch = ->
  processes.watch_coffee = spawn 'coffee', ['-w', '-c', 'app/scripts/main.coffee', 'server.coffee']
  addFuncs(processes.watch_coffee)

server = ->
  processes.node = fork 'server'

dev = ->
  server()
  fs.watch "server.js", (event, filename) ->
    console.log "Restarting server"
    processes.node.kill()
    processes.node = fork 'server'
  return

task 'watch', 'watch and update server.coffee and main.coffee', ->
  watch()

task 'build', 'Build server.coffee and main.coffee', ->
  build()

task 'server', 'Run the server', ->
  server()

task 'dev', 'watch files and run server', ->
  invoke 'watch'
  dev()