#!/usr/bin/python3
from MgaRepo import Error, plugins, config
from MgaRepo.command import *
import getopt
import sys

VERSION="1.13.1"

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

Tool to access and manage a package repository structure.

Useful commands:
    co            checkout a package
    clone         clone a package repository
    ci            commit changes
    sync          add-remove all file changes from the .spec
    submit        submit a package for build
    putsrpm       import a source package to the repository
    getspec       print the spec
    rpmlog        print the RPM changelog
    getsrpm       create the source RPM
    buildrpm      build rpm from local package repository checkout
    maintdb       interact with the maintainer db
    create        create the structure of a new package
    changed       show changes not submitted
    authoremail   print the e-mail of a given author
    switch        relocate to mirror or upstream repository
    markrelease   create a tag for a given package revision and version
    upload        add a file to binrepo
    del           remove a file from binrepo
    up            update the working copy and synchronize all binaries
    obsolete      move a package in obsolete directory

Run "mgarepo COMMAND --help" and "man 8 mgarepo" for more information.

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

command_aliases = {"import": "putsrpm", "commit": "ci", "checkout": "co"}

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:
        command = command_aliases[command]
    except KeyError:
        pass
    if debug:
        config.set("global", "verbose", "yes")
    try:
        repsys_module = __import__("MgaRepo.commands."+command)
        commands_module = getattr(repsys_module, "commands")
        command_module = getattr(commands_module, command)
    except (ImportError, AttributeError):
        etype, exc, tb = sys.exc_info()
        if tb.tb_next is None and not debug:
            raise Error("invalid command '%s'" % command)
        raise
    command_module.main()
    
if __name__ == "__main__":
    try:
        plugins.load()
    except Error as e:
        sys.stderr.write("plugin initialization error: %s\n" % e)
        sys.exit(1)
    config.set("global", "mgarepo-cmd", sys.argv[0])
    do_command(parse_options, dispatch_command)

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