# Copyright (C) 2007 by Intevation GmbH
# Authors:
# Bernhard Herzog <bh@intevation.de>
#
# This program is free software under the GPL (>=v2)
# Read the file COPYING coming with the software for details.

"""Reads the configuration file"""

import sys
from ConfigParser import SafeConfigParser, NoOptionError


assembly_line_keys = ["name", "base_dir", "svn_url", "root_cmd",
                      "deb_email", "deb_fullname"]

defaults = dict(root_cmd="sudo")



def read_config(filename):
    """Reads the packagemill configuration from filename.

    The return value is a list of (name, option) pairs, one for each
    assembly line of the mill.
    """
    assembly_lines = []
    parser = SafeConfigParser(defaults)
    parser.read([filename])
    for section in parser.sections():
        if section.startswith("pkg_"):
            pkg_defaults = dict(name=section[4:])
            options = {}
            for key in assembly_line_keys:
                try:
                    options[key] = parser.get(section, key, vars=pkg_defaults)
                except NoOptionError:
                    print >>sys.stderr, "%s: Missing option %r in section %r" \
                                        % (filename, key, section)
                    sys.exit(1)
            assembly_lines.append(options)

    treepkg_opts = dict(check_interval=parser.getint("treepkg",
                                                      "check_interval"))

    return treepkg_opts, assembly_lines


if __name__ == "__main__":
    print read_config(sys.argv[1])