Start coffee, compass, and a simple HTTP server with one script

develop.py

#!/usr/bin/python
import os
import subprocess
import signal
import sys

STATICGEN_ROOT = (os.path.join(os.path.dirname(
                               os.path.dirname(os.path.abspath(__file__))),
                                               'staticgen'))
staticgen_path = lambda *a: os.path.abspath(os.path.join(STATICGEN_ROOT, *a))

# Compiles all Compass files and throws them in `static/css`
compass_location = staticgen_path('compass')
compass_args = [
    'compass',
    'watch',
    compass_location
]

# Compiles all Coffeescript files and throws them in `static/js`
coffee_location = staticgen_path('coffee')
coffee_location_output = staticgen_path('..', 'static', 'js')
coffee_args = [
    'coffee',
    '--watch',
    '--output',
    coffee_location_output,
    '--compile',
    coffee_location
]

compass_process = subprocess.Popen(compass_args)
coffee_process = subprocess.Popen(coffee_args)

def signal_handler(signal, frame):
    compass_process.terminate()
    coffee_process.terminate()
    sys.exit(0)

signal.signal(signal.SIGINT, signal_handler)
signal.pause()