Cakefile

fs            = require("fs")
path          = require("path")
{spawn, exec} = require("child_process")
stdout        = process.stdout

# Use executables installed with npm bundle.
process.env["PATH"] = "node_modules/.bin:#{process.env["PATH"]}"

# ANSI Terminal Colors.
bold  = "\033[0;1m"
red   = "\033[0;31m"
green = "\033[0;32m"
reset = "\033[0m"

# Log a message with a color.
log = (message, color, explanation)->
  console.log color + message + reset + ' ' + (explanation or '')

# Handle error and kill the process.
onerror = (err)->
  if err
    process.stdout.write "#{red}#{err.stack}#{reset}\n"
    process.exit -1


## Building ##

build = (callback)->
  log "Compiling CoffeeScript to JavaScript ...", green
  exec "rm -rf lib && coffee -c -l -b -o lib src", (err, stdout)-> onerror err
  exec "coffee -c -l -b -o spec/lib spec", (err, stdout)-> onerror err
task "build", "Compile CoffeeScript to JavaScript", -> build onerror

task "watch", "Continously compile CoffeeScript to JavaScript", ->
  cmd = spawn("coffee", ["-cw", "-o", "lib", "src"])
  cmd.stdout.on "data", (data)-> process.stdout.write green + data + reset
  cmd.on "error", onerror

  cmdTest = spawn("coffee", ["-cw", "-o", "spec/lib", "spec"])
  cmdTest.stdout.on "data", (data) -> process.stdout.write green + data + reset
  cmdTest.on "error", onerror


## Prepare ##

task "prepare", "Download vendor files", ->
  log "Downloading backbone.js ...", green
  exec "curl -o spec/lib/backbone.js http://documentcloud.github.com/backbone/backbone.js"
  log "Downloading handlebars.js ...", green
  exec "curl -o spec/lib/handlebars.js http://cloud.github.com/downloads/wycats/handlebars.js/handlebars.1.0.0.beta.3.js"


## Documentation ##

generateDocs = (callback)->
  log "Generating documentation ...", green
  exec "rm -rf docs && docco src/*.coffee  && mv docs/backrub.html
  docs/index.html", (err, stdout)-> onerror err

task "doc", "Generate all documentation", -> generateDocs onerror