mirror of
https://salsa.debian.org/freeipa-team/freeipa.git
synced 2024-12-25 08:21:05 -06:00
043c262ce4
Replace cli_name, cli_short_name and cli_positional knob arguments with a
single cli_names argument, which allows defining one or more CLI names
using the argparse convention ("--option" for long option name, "-o" for
short option name and "argument" for positional argument name).
Also replace cli_aliases with cli_deprecated_names which uses the same
convention.
https://fedorahosted.org/freeipa/ticket/6392
Reviewed-By: Martin Basti <mbasti@redhat.com>
366 lines
12 KiB
Python
366 lines
12 KiB
Python
#
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# Copyright (C) 2015 FreeIPA Contributors see COPYING for license
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#
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"""
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Command line support.
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"""
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import collections
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import enum
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import functools
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import optparse
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import signal
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import six
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from ipapython import admintool, ipa_log_manager
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from ipapython.ipautil import CheckedIPAddress, private_ccache
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from . import core, common
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__all__ = ['install_tool', 'uninstall_tool']
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if six.PY3:
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long = int
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NoneType = type(None)
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def _get_usage(configurable_class):
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usage = '%prog [options]'
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for owner_cls, name in configurable_class.knobs():
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knob_cls = getattr(owner_cls, name)
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if knob_cls.is_cli_positional():
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if knob_cls.cli_metavar is not None:
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metavar = knob_cls.cli_metavar
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elif knob_cls.cli_names:
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metavar = knob_cls.cli_names[0].upper()
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else:
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metavar = name.replace('_', '-').upper()
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try:
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knob_cls.default
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except AttributeError:
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fmt = ' {}'
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else:
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fmt = ' [{}]'
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usage += fmt.format(metavar)
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return usage
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def install_tool(configurable_class, command_name, log_file_name,
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debug_option=False, use_private_ccache=True,
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uninstall_log_file_name=None):
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if uninstall_log_file_name is not None:
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uninstall_kwargs = dict(
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configurable_class=configurable_class,
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command_name=command_name,
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log_file_name=uninstall_log_file_name,
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debug_option=debug_option,
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)
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else:
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uninstall_kwargs = None
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return type(
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'install_tool({0})'.format(configurable_class.__name__),
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(InstallTool,),
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dict(
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configurable_class=configurable_class,
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command_name=command_name,
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log_file_name=log_file_name,
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usage=_get_usage(configurable_class),
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debug_option=debug_option,
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uninstall_kwargs=uninstall_kwargs,
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use_private_ccache=use_private_ccache,
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)
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)
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def uninstall_tool(configurable_class, command_name, log_file_name,
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debug_option=False):
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return type(
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'uninstall_tool({0})'.format(configurable_class.__name__),
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(UninstallTool,),
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dict(
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configurable_class=configurable_class,
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command_name=command_name,
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log_file_name=log_file_name,
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usage=_get_usage(configurable_class),
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debug_option=debug_option,
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)
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)
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def _option_callback(action, option, opt_str, value, parser, opt_type):
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try:
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value = opt_type(value)
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except ValueError as e:
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raise optparse.OptionValueError(
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"option {0}: {1}".format(opt_str, e))
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option.take_action(
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action, option.dest, opt_str, value, parser.values, parser)
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class ConfigureTool(admintool.AdminTool):
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configurable_class = None
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debug_option = False
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use_private_ccache = True
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@staticmethod
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def _transform(configurable_class):
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raise NotImplementedError
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@classmethod
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def add_options(cls, parser, positional=False):
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transformed_cls = cls._transform(cls.configurable_class)
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if issubclass(transformed_cls, common.Interactive):
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parser.add_option(
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'-U', '--unattended',
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dest='unattended',
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default=False,
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action='store_true',
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help="unattended (un)installation never prompts the user",
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)
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basic_group = optparse.OptionGroup(parser, "basic options")
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groups = collections.OrderedDict()
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groups[None] = basic_group
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for owner_cls, name in transformed_cls.knobs():
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knob_cls = getattr(owner_cls, name)
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if knob_cls.is_cli_positional() is not positional:
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continue
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group_cls = owner_cls.group()
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try:
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opt_group = groups[group_cls]
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except KeyError:
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opt_group = groups[group_cls] = optparse.OptionGroup(
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parser, "{0} options".format(group_cls.description))
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knob_type = knob_cls.type
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if issubclass(knob_type, list):
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try:
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# typing.List[X].__parameters__ == (X,)
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knob_scalar_type = knob_type.__parameters__[0]
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except AttributeError:
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knob_scalar_type = str
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else:
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knob_scalar_type = knob_type
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kwargs = dict()
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if knob_scalar_type is NoneType:
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kwargs['type'] = None
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kwargs['const'] = True
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kwargs['default'] = False
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elif knob_scalar_type is str:
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kwargs['type'] = 'string'
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elif knob_scalar_type is int:
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kwargs['type'] = 'int'
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elif knob_scalar_type is long:
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kwargs['type'] = 'long'
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elif knob_scalar_type is CheckedIPAddress:
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kwargs['type'] = 'ip'
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elif issubclass(knob_scalar_type, enum.Enum):
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kwargs['type'] = 'choice'
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kwargs['choices'] = [i.value for i in knob_scalar_type]
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else:
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kwargs['nargs'] = 1
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kwargs['callback_args'] = (knob_scalar_type,)
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kwargs['dest'] = name
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if issubclass(knob_type, list):
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if 'type' not in kwargs:
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kwargs['action'] = 'callback'
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kwargs['callback'] = (
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functools.partial(_option_callback, 'append'))
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elif kwargs['type'] is None:
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kwargs['action'] = 'append_const'
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else:
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kwargs['action'] = 'append'
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else:
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if 'type' not in kwargs:
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kwargs['action'] = 'callback'
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kwargs['callback'] = (
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functools.partial(_option_callback, 'store'))
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elif kwargs['type'] is None:
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kwargs['action'] = 'store_const'
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else:
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kwargs['action'] = 'store'
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if knob_cls.sensitive:
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kwargs['sensitive'] = True
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if knob_cls.cli_metavar:
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kwargs['metavar'] = knob_cls.cli_metavar
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if not positional:
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cli_info = (
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(knob_cls.deprecated, knob_cls.cli_names),
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(True, knob_cls.cli_deprecated_names),
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)
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else:
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cli_info = (
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(knob_cls.deprecated, (None,)),
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)
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for hidden, cli_names in cli_info:
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opt_strs = []
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for cli_name in cli_names:
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if cli_name is None:
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cli_name = '--{}'.format(name.replace('_', '-'))
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opt_strs.append(cli_name)
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if not opt_strs:
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continue
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if not hidden:
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help = knob_cls.description
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else:
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help = optparse.SUPPRESS_HELP
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opt_group.add_option(
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*opt_strs,
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help=help,
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**kwargs
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)
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for opt_group in groups.values():
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parser.add_option_group(opt_group)
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super(ConfigureTool, cls).add_options(parser,
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debug_option=cls.debug_option)
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def __init__(self, options, args):
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super(ConfigureTool, self).__init__(options, args)
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self.transformed_cls = self._transform(self.configurable_class)
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self.positional_arguments = []
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for owner_cls, name in self.transformed_cls.knobs():
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knob_cls = getattr(owner_cls, name)
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if knob_cls.is_cli_positional():
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self.positional_arguments.append(name)
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# fake option parser to parse positional arguments
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# (because optparse does not support positional argument parsing)
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fake_option_parser = optparse.OptionParser()
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self.add_options(fake_option_parser, True)
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fake_option_map = {option.dest: option
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for group in fake_option_parser.option_groups
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for option in group.option_list}
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for index, name in enumerate(self.positional_arguments):
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try:
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value = self.args.pop(0)
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except IndexError:
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break
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fake_option = fake_option_map[name]
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fake_option.process('argument {}'.format(index + 1),
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value,
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self.options,
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self.option_parser)
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def validate_options(self, needs_root=True):
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super(ConfigureTool, self).validate_options(needs_root=needs_root)
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if self.args:
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self.option_parser.error("Too many arguments provided")
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def _setup_logging(self, log_file_mode='w', no_file=False):
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if no_file:
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log_file_name = None
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elif self.options.log_file:
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log_file_name = self.options.log_file
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else:
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log_file_name = self.log_file_name
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ipa_log_manager.standard_logging_setup(log_file_name,
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debug=self.options.verbose)
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self.log = ipa_log_manager.log_mgr.get_logger(self)
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if log_file_name:
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self.log.debug('Logging to %s' % log_file_name)
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elif not no_file:
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self.log.debug('Not logging to a file')
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def run(self):
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kwargs = {}
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transformed_cls = self._transform(self.configurable_class)
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knob_classes = {n: getattr(c, n) for c, n in transformed_cls.knobs()}
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for name in knob_classes:
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value = getattr(self.options, name, None)
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if value is not None:
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kwargs[name] = value
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if (issubclass(self.configurable_class, common.Interactive) and
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not self.options.unattended):
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kwargs['interactive'] = True
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try:
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cfgr = transformed_cls(**kwargs)
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except core.KnobValueError as e:
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knob_cls = knob_classes[e.name]
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try:
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index = self.positional_arguments.index(e.name)
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except ValueError:
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cli_name = knob_cls.cli_names[0] or e.name.replace('_', '-')
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desc = "option --{0}".format(cli_name)
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else:
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desc = "argument {0}".format(index + 1)
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self.option_parser.error("{0}: {1}".format(desc, e))
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except RuntimeError as e:
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self.option_parser.error(str(e))
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signal.signal(signal.SIGTERM, self.__signal_handler)
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if self.use_private_ccache:
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with private_ccache():
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super(ConfigureTool, self).run()
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cfgr.run()
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else:
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super(ConfigureTool, self).run()
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cfgr.run()
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@staticmethod
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def __signal_handler(signum, frame):
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raise KeyboardInterrupt
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class InstallTool(ConfigureTool):
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uninstall_kwargs = None
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_transform = staticmethod(common.installer)
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@classmethod
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def add_options(cls, parser, positional=False):
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super(InstallTool, cls).add_options(parser, positional)
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if cls.uninstall_kwargs is not None:
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uninstall_group = optparse.OptionGroup(parser, "uninstall options")
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uninstall_group.add_option(
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'--uninstall',
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dest='uninstall',
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default=False,
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action='store_true',
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help=("uninstall an existing installation. The uninstall can "
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"be run with --unattended option"),
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)
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parser.add_option_group(uninstall_group)
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@classmethod
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def get_command_class(cls, options, args):
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if cls.uninstall_kwargs is not None and options.uninstall:
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uninstall_cls = uninstall_tool(**cls.uninstall_kwargs)
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uninstall_cls.option_parser = cls.option_parser
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return uninstall_cls
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else:
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return super(InstallTool, cls).get_command_class(options, args)
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class UninstallTool(ConfigureTool):
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_transform = staticmethod(common.uninstaller)
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