예제 #1
0
    def _resolve_deprecation_warnings(self, cmd, parsed_args):
        deprecations = [] + getattr(parsed_args, '_argument_deprecations', [])
        if cmd.deprecate_info:
            deprecations.append(cmd.deprecate_info)

        # search for implicit deprecation
        path_comps = cmd.name.split()[:-1]
        implicit_deprecate_info = None
        while path_comps and not implicit_deprecate_info:
            implicit_deprecate_info = resolve_deprecate_info(self.cli_ctx, ' '.join(path_comps))
            del path_comps[-1]

        if implicit_deprecate_info:
            deprecate_kwargs = implicit_deprecate_info.__dict__.copy()
            deprecate_kwargs['object_type'] = 'command'
            del deprecate_kwargs['_get_tag']
            del deprecate_kwargs['_get_message']
            deprecations.append(ImplicitDeprecated(**deprecate_kwargs))

        for d in deprecations:
            logger.warning(d.message)
예제 #2
0
    def execute(self, args):
        from knack.events import (EVENT_INVOKER_PRE_CMD_TBL_CREATE, EVENT_INVOKER_POST_CMD_TBL_CREATE,
                                  EVENT_INVOKER_CMD_TBL_LOADED, EVENT_INVOKER_PRE_PARSE_ARGS,
                                  EVENT_INVOKER_POST_PARSE_ARGS, EVENT_INVOKER_TRANSFORM_RESULT,
                                  EVENT_INVOKER_FILTER_RESULT)
        from knack.util import CommandResultItem, todict
        from azure.cli.core.commands.events import EVENT_INVOKER_PRE_CMD_TBL_TRUNCATE

        # TODO: Can't simply be invoked as an event because args are transformed
        args = _pre_command_table_create(self.cli_ctx, args)

        self.cli_ctx.raise_event(EVENT_INVOKER_PRE_CMD_TBL_CREATE, args=args)
        self.commands_loader.load_command_table(args)
        self.cli_ctx.raise_event(EVENT_INVOKER_PRE_CMD_TBL_TRUNCATE,
                                 load_cmd_tbl_func=self.commands_loader.load_command_table, args=args)
        command = self._rudimentary_get_command(args)
        telemetry.set_raw_command_name(command)

        try:
            self.commands_loader.command_table = {command: self.commands_loader.command_table[command]}
        except KeyError:
            # Trim down the command table to reduce the number of subparsers required to optimize the performance.
            #
            # When given a command table like this:
            #
            # network application-gateway create
            # network application-gateway delete
            # network list-usages
            # storage account create
            # storage account list
            #
            # input:  az
            # output: network application-gateway create
            #         storage account create
            #
            # input:  az network
            # output: network application-gateway create
            #         network list-usages

            cmd_table = {}
            group_names = set()
            for cmd_name, cmd in self.commands_loader.command_table.items():
                if command and not cmd_name.startswith(command):
                    continue

                cmd_stub = cmd_name[len(command):].strip()
                group_name = cmd_stub.split(' ', 1)[0]
                if group_name not in group_names:
                    cmd_table[cmd_name] = cmd
                    group_names.add(group_name)
                self.commands_loader.command_table = cmd_table

        self.commands_loader.command_table = self.commands_loader.command_table  # update with the truncated table
        self.commands_loader.command_name = command
        self.commands_loader.load_arguments(command)
        self.cli_ctx.raise_event(EVENT_INVOKER_POST_CMD_TBL_CREATE, commands_loader=self.commands_loader)
        self.parser.cli_ctx = self.cli_ctx
        self.parser.load_command_table(self.commands_loader)

        self.cli_ctx.raise_event(EVENT_INVOKER_CMD_TBL_LOADED, cmd_tbl=self.commands_loader.command_table,
                                 parser=self.parser)

        if not args:
            self.parser.enable_autocomplete()
            subparser = self.parser.subparsers[tuple()]
            self.help.show_welcome(subparser)

            # TODO: No event in base with which to target
            telemetry.set_command_details('az')
            telemetry.set_success(summary='welcome')
            return None

        if args[0].lower() == 'help':
            args[0] = '--help'

        self.parser.enable_autocomplete()

        self.cli_ctx.raise_event(EVENT_INVOKER_PRE_PARSE_ARGS, args=args)
        parsed_args = self.parser.parse_args(args)
        self.cli_ctx.raise_event(EVENT_INVOKER_POST_PARSE_ARGS, command=parsed_args.command, args=parsed_args)

        # TODO: This fundamentally alters the way Knack.invocation works here. Cannot be customized
        # with an event. Would need to be customized via inheritance.
        results = []
        for expanded_arg in _explode_list_args(parsed_args):
            cmd = expanded_arg.func
            if hasattr(expanded_arg, 'cmd'):
                expanded_arg.cmd = cmd

            self.cli_ctx.data['command'] = expanded_arg.command

            self._validation(expanded_arg)

            params = self._filter_params(expanded_arg)

            command_source = self.commands_loader.command_table[command].command_source

            extension_version = None
            extension_name = None
            try:
                if isinstance(command_source, ExtensionCommandSource):
                    extension_name = command_source.extension_name
                    extension_version = get_extension(command_source.extension_name).version
            except Exception:  # pylint: disable=broad-except
                pass

            telemetry.set_command_details(self.cli_ctx.data['command'], self.data['output'],
                                          [(p.split('=', 1)[0] if p.startswith('--') else p[:2]) for p in args if
                                           (p.startswith('-') and len(p) > 1)],
                                          extension_name=extension_name, extension_version=extension_version)
            if extension_name:
                self.data['command_extension_name'] = extension_name

            deprecations = [] + getattr(expanded_arg, '_argument_deprecations', [])
            if cmd.deprecate_info:
                deprecations.append(cmd.deprecate_info)

            # search for implicit deprecation
            path_comps = cmd.name.split()[:-1]
            implicit_deprecate_info = None
            while path_comps and not implicit_deprecate_info:
                implicit_deprecate_info = resolve_deprecate_info(self.cli_ctx, ' '.join(path_comps))
                del path_comps[-1]

            if implicit_deprecate_info:
                deprecate_kwargs = implicit_deprecate_info.__dict__.copy()
                deprecate_kwargs['object_type'] = 'command'
                del deprecate_kwargs['_get_tag']
                del deprecate_kwargs['_get_message']
                deprecations.append(ImplicitDeprecated(**deprecate_kwargs))

            for d in deprecations:
                logger.warning(d.message)

            try:
                result = cmd(params)
                if cmd.supports_no_wait and getattr(expanded_arg, 'no_wait', False):
                    result = None
                elif cmd.no_wait_param and getattr(expanded_arg, cmd.no_wait_param, False):
                    result = None

                transform_op = cmd.command_kwargs.get('transform', None)
                if transform_op:
                    result = transform_op(result)

                if _is_poller(result):
                    result = LongRunningOperation(self.cli_ctx, 'Starting {}'.format(cmd.name))(result)
                elif _is_paged(result):
                    result = list(result)

                result = todict(result, AzCliCommandInvoker.remove_additional_prop_layer)
                event_data = {'result': result}
                self.cli_ctx.raise_event(EVENT_INVOKER_TRANSFORM_RESULT, event_data=event_data)
                result = event_data['result']
                results.append(result)

            except Exception as ex:  # pylint: disable=broad-except
                if cmd.exception_handler:
                    cmd.exception_handler(ex)
                    return None
                else:
                    six.reraise(*sys.exc_info())

        if results and len(results) == 1:
            results = results[0]

        event_data = {'result': results}
        self.cli_ctx.raise_event(EVENT_INVOKER_FILTER_RESULT, event_data=event_data)

        return CommandResultItem(
            event_data['result'],
            table_transformer=self.commands_loader.command_table[parsed_args.command].table_transformer,
            is_query_active=self.data['query_active'])