Synnefo » ./kamaki

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from kamaki.cli import (

    get_command_group, set_command_params, print_subcommands_help, exec_cmd,

    update_parser_help, _groups_help, _load_spec_module,

    init_cached_authenticator, kloger)

from kamaki.cli.errors import CLIUnknownCommand

def _get_cmd_tree_from_spec(spec, cmd_tree_list):

    for tree in cmd_tree_list:

        if tree.name == spec:

            return tree

    raise CLIUnknownCommand('Unknown command: %s' % spec)

def _get_best_match_from_cmd_tree(cmd_tree, unparsed):

    matched = [term for term in unparsed if not term.startswith('-')]

    while matched:

        try:

            return cmd_tree.get_command('_'.join(matched))

        except KeyError:

            matched = matched[:-1]

    return None

def run(cloud, parser, _help):

    group = get_command_group(list(parser.unparsed), parser.arguments)

    if not group:

        #parser.parser.print_help()

        parser.print_help()

        _groups_help(parser.arguments)

        exit(0)

    nonargs = [term for term in parser.unparsed if not term.startswith('-')]

    set_command_params(nonargs)

    global _best_match

    _best_match = []

    _cnf = parser.arguments['config']

    group_spec = _cnf.get('global', '%s_cli' % group)

    spec_module = _load_spec_module(group_spec, parser.arguments, '_commands')

    if spec_module is None:

        raise CLIUnknownCommand(

            'Could not find specs for %s commands' % group,

            details=[

                'Make sure %s is a valid command group' % group,

                'Refer to kamaki documentation for setting custom command',

                'groups or overide existing ones'])

    cmd_tree = _get_cmd_tree_from_spec(group, spec_module._commands)

    if _best_match:

        cmd = cmd_tree.get_command('_'.join(_best_match))

    else:

        cmd = _get_best_match_from_cmd_tree(cmd_tree, parser.unparsed)

        _best_match = cmd.path.split('_')

    if cmd is None:

        kloger.info('Unexpected error: failed to load command (-d for more)')

        exit(1)

    update_parser_help(parser, cmd)

    if _help or not cmd.is_command:

        if cmd.cmd_class:

            parser.required = getattr(cmd.cmd_class, 'required', None)

        parser.print_help()

        if getattr(cmd, 'long_help', False):

            print 'Details:\n', cmd.long_help

        print_subcommands_help(cmd)

        exit(0)

    cls = cmd.cmd_class

    auth_base = init_cached_authenticator(_cnf, cloud, kloger) if (

        cloud) else None

    executable = cls(parser.arguments, auth_base, cloud)

    parser.required = getattr(cls, 'required', None)

    parser.update_arguments(executable.arguments)

    for term in _best_match:

        parser.unparsed.remove(term)

    exec_cmd(executable, parser.unparsed, parser.print_help)