#!/usr/bin/python
from RepSys import Error, plugins
from RepSys.command import *
import getopt
import sys

VERSION="1.6.19.1"

HELP = """\
Usage: repsys COMMAND [COMMAND ARGUMENTS]

Useful commands:
    co
    ci
    sync
    submit
    create
    getspec
    getsrpm
    rpmlog
    changed
    authoremail
    putsrpm
    switch

Run "repsys COMMAND --help" for more information.

Run "repsys --help-plugins" for help on loaded plugins.

Written by Gustavo Niemeyer <gustavo@niemeyer.net>
"""

def plugin_help(opt, val, parser, mode):
    if parser is None:
        prog = sys.argv[0]
        print "Use %s --help-plugin <plugin name>" % prog
        print "Available plugins:"
        print
        for name in plugins.list():
            print name
    else:
        print plugins.help(parser)
    raise SystemExit

def parse_options():
    parser = OptionParser(help=HELP, version="%prog "+VERSION)
    parser.disable_interspersed_args()
    parser.add_option("--debug", action="store_true")
    parser.add_option("--help-plugins", action="callback", callback=plugin_help)
    parser.add_option("--help-plugin", type="string", dest="__ignore",
            action="callback", callback=plugin_help)
    opts, args = parser.parse_args()
    del opts.__ignore
    if len(args) < 1:
        parser.print_help(sys.stderr)
        sys.exit(1)
    opts.command = args[0]
    opts.argv = args
    return opts

def dispatch_command(command, argv, debug=0):
    sys.argv = argv
    try:
        repsys_module = __import__("RepSys.commands."+command)
        commands_module = getattr(repsys_module, "commands")
        command_module = getattr(commands_module, command)
    except (ImportError, AttributeError):
        if debug:
            import traceback
            traceback.print_exc()
            sys.exit(1)
        raise Error, "invalid command '%s'" % command
    command_module.main()
    
if __name__ == "__main__":
    try:
        plugins.load()
    except Error, e:
        sys.stderr.write("plugin initialization error: %s\n" % e)
        sys.exit(1)
    do_command(parse_options, dispatch_command)

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