--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.py	Thu Apr 02 20:19:18 2009 +0300
@@ -0,0 +1,63 @@
+#!/usr/bin/env python2.5
+
+import data, dhcp_conf, dhcp
+
+import optparse, itertools
+
+def parse_args (argv) :
+    """
+        Parse the command-line arguments from the given argv list, returning a (options_struct, args_list) tuple,
+        as per optparse.
+    """
+
+    usage = "Usage: %prog [options] data-file"
+
+    # define our options
+    parser = optparse.OptionParser(usage=usage)
+    parser.add_option('--dhcpd-conf',    dest='dhcpd_conf', metavar='PATH', help="path to dhcpd.conf", default='/etc/dhcp3/dhcpd.conf')
+    
+    # parse them
+    options, args = parser.parse_args(args=argv[1:])
+
+    # parse the positional arguments
+    data_file, = args
+
+    # ok
+    return options, (data_file, )
+
+def write_dhcp (options, settings) :
+    """
+        Write the DHCP config module using the data loaded from the given module
+    """
+    
+    # build the config f file
+    config = dhcp.Config(path=options.dhcpd_conf,
+        settings        = settings.dhcp_settings,
+        options         = settings.dhcp_options,
+        shared_network  = settings.shared_network,
+        subnets         = settings.subnets,
+        hosts           = itertools.chain(*(host.build_dhcp_hosts() for host in settings.hosts)),
+    )
+
+    # write it out
+    config.write()
+
+def main (argv) :
+    """
+        Our app entry point, parse args, load data, write out the config files
+    """
+    
+    # parse args
+    options, (data_file, ) = parse_args(argv)
+
+    # load the data
+    data_module = data.load_py(data_file)
+    
+    # write out the config files
+    write_dhcp(options, data_module)
+
+if __name__ == '__main__' :
+    from sys import argv
+
+    main(argv)
+