#!/usr/bin/python

# Automatic recompiler for Flash programs, using the fcsh shell. This
# program watches for changes to the source files; whenever one is
# changed, it triggers a recompile.

# Copyright 2007 Amit J Patel <amitp@cs.stanford.edu>

import os, time, select

pw, pr, pe = os.popen3('fcsh', 'w')

LOG_FILE = 'compile.log'

last_compile = os.stat('main.swf').st_mtime

def any_files_changed():
    for filename in os.listdir('.'):
        if filename.endswith('.as') and not filename.startswith('.'):
            if os.stat(filename).st_mtime >= last_compile:
                return True
    return False

def send(msg):
    receive()
    pw.write(msg)
    pw.flush()
    print msg,
    
def receive():
    log = open(LOG_FILE, 'w')
    while True:
        ready, _, _ = select.select([pe, pr], [], [], 1)
        if pr in ready:
            line = os.read(pr.fileno(), 10000)
            log.write(line)
            print line,
        elif pe in ready:
            line = os.read(pe.fileno(), 10000)
            log.write(line)
            print line,
        else:
            break
    
send('mxmlc -optimize -creator amitp@cs.stanford.edu main.as\n')
receive()
while True:
    print 'Recompiling'
    last_compile = time.time()
    send('compile 1\n')
    receive()
    while not any_files_changed():
        time.sleep(0.5)