"""
Read configuration files to manage default options
"""

__revision__ = "$Id: config.py,v 1.3 2003/12/09 22:01:32 syt Exp $"

import os
import sys

RCFILE = '.pyreverserc'

def get_default_options():
    """
    Read config file and return list of options
    """
    options = []
    home = os.environ.get('HOME', '')
    if home:
        rcfile = os.path.join(home, RCFILE)
        try:
            options = open(rcfile).read().split()
        except IOError:
            pass # ignore if no config file found
    return options

def insert_default_options():
    """insert default options to sys.argv
    """
    options = get_default_options()
    options.reverse()
    for arg in options:
        sys.argv.insert(1, arg)