KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference
How to use get_name_of_init method in avocado

Best Python code snippet using avocado_python
service.py
Source:service.py
...322        """323        self.commands = command_list324        for command in self.commands:325            setattr(self, command, command_generator(command))326def _get_name_of_init(run=utils.run):327    """328    Internal function to determine what executable is PID 1,329    aka init by checking /proc/1/exe330    :return: executable name for PID 1, aka init331    :rtype:  str332    """333    # /proc/1/comm was added in 2.6.33 and is not in RHEL6.x, so use cmdline334    # Non-root can read cmdline335    # return os.path.basename(open("/proc/1/cmdline").read().split(chr(0))[0])336    # readlink /proc/1/exe requires root337    # inspired by openvswitch.py:ServiceManagerInterface.get_version()338    output = run("readlink /proc/1/exe").stdout.strip()339    return os.path.basename(output)340def get_name_of_init(run=utils.run):341    """342    Determine what executable is PID 1, aka init by checking /proc/1/exe343    This init detection will only run once and cache the return value.344    :return: executable name for PID 1, aka init345    :rtype:  str346    """347    # _init_name is explicitly undefined so that we get the NameError on first access348    # pylint: disable=W0601349    global _init_name350    try:351        return _init_name352    except (NameError, AttributeError):353        _init_name = _get_name_of_init(run)354        return _init_name355class _SpecificServiceManager(object):356    def __init__(self, service_name, service_command_generator, service_result_parser, run=utils.run):357        """358        Create staticmethods that call utils.run with the given service_name359        for each command in service_command_generator.360        lldpad = SpecificServiceManager("lldpad",361                                        auto_create_specific_service_command_generator())362        lldpad.start()363        lldpad.stop()364        :param service_name: init service name or systemd unit name365        :type service_name: str366        :param service_command_generator: a sys_v_init or systemd command generator367        :type service_command_generator: _ServiceCommandGenerator368        :param run: function that executes the commands and return CmdResult object, default utils.run369        :type run: function370        """371        for cmd in service_command_generator.commands:372            setattr(self, cmd,373                    self.generate_run_function(run,374                                               getattr(375                                                   service_result_parser, cmd),376                                               getattr(377                                                   service_command_generator, cmd),378                                               service_name))379    @staticmethod380    def generate_run_function(run_func, parse_func, command, service_name):381        """382        Generate the wrapped call to utils.run for the given service_name.383        :param run_func:  function to execute command and return CmdResult object.384        :type run_func:  function385        :param parse_func: function to parse the result from run.386        :type parse_func: function387        :param command: partial function that generates the command list388        :type command: function389        :param service_name: init service name or systemd unit name390        :type service_name: str391        :return: wrapped utils.run function.392        :rtype: function393        """394        def run(**kwargs):395            """396            Wrapped utils.run invocation that will start, stop, restart, etc. a service.397            :param kwargs: extra arguments to utils.run, .e.g. timeout. But not for ignore_status.398                           We need a CmdResult to parse and raise a error.TestError if command failed.399                           We will not let the CmdError out.400            :return: result of parse_func.401            """402            # If run_func is utils.run by default, we need to set403            # ignore_status = True. Otherwise, skip this setting.404            if run_func is utils.run:405                logging.debug("Setting ignore_status to True.")406                kwargs["ignore_status"] = True407            result = run_func(" ".join(command(service_name)), **kwargs)408            return parse_func(result)409        return run410class _GenericServiceManager(object):411    """412    Base class for SysVInitServiceManager and SystemdServiceManager.413    """414    def __init__(self, service_command_generator, service_result_parser, run=utils.run):415        """416        Create staticmethods for each service command, e.g. start, stop, restart.417        These staticmethods take as an argument the service to be started or stopped.418        systemd = SpecificServiceManager(auto_create_specific_service_command_generator())419        systemd.start("lldpad")420        systemd.stop("lldpad")421        :param service_command_generator: a sys_v_init or systemd command generator422        :type service_command_generator: _ServiceCommandGenerator423        :param run: function to call the run the commands, default utils.run424        :type run: function425        """426        # create staticmethods in class attributes (not used)427        # for cmd in service_command_generator.commands:428        #     setattr(self.__class__, cmd,429        #             staticmethod(self.generate_run_function(run, getattr(service_command_generator, cmd))))430        # create functions in instance attributes431        for cmd in service_command_generator.commands:432            setattr(self, cmd,433                    self.generate_run_function(run,434                                               getattr(435                                                   service_result_parser, cmd),436                                               getattr(service_command_generator, cmd)))437    @staticmethod438    def generate_run_function(run_func, parse_func, command):439        """440        Generate the wrapped call to utils.run for the service command, "service" or "systemctl"441        :param run_func:  utils.run442        :type run_func:  function443        :param command: partial function that generates the command list444        :type command: function445        :return: wrapped utils.run function.446        :rtype: function447        """448        def run(service="", **kwargs):449            """450            Wrapped utils.run invocation that will start, stop, restart, etc. a service.451            :param service: service name, e.g. crond, dbus, etc.452            :param kwargs: extra arguments to utils.run, .e.g. timeout. But not for ignore_status.453                           We need a CmdResult to parse and raise a error.TestError if command failed.454                           We will not let the CmdError out.455            :return: result of parse_func.456            """457            # If run_func is utils.run by default, we need to set458            # ignore_status = True. Otherwise, skip this setting.459            if run_func is utils.run:460                logging.debug("Setting ignore_status to True.")461                kwargs["ignore_status"] = True462            result = run_func(" ".join(command(service)), **kwargs)463            return parse_func(result)464        return run465class _SysVInitServiceManager(_GenericServiceManager):466    """467    Concrete class that implements the SysVInitServiceManager468    """469    def __init__(self, service_command_generator, service_result_parser, run=utils.run):470        """471        Create the GenericServiceManager for SysV services.472        :param service_command_generator:473        :type service_command_generator: _ServiceCommandGenerator474        :param run: function to call to run the commands, default utils.run475        :type run: function476        """477        super(478            _SysVInitServiceManager, self).__init__(service_command_generator,479                                                    service_result_parser, run)480    # @staticmethod481    # def change_default_runlevel(runlevel='3'):482    #     """483    #     Set the default sys_v runlevel484    #485    #     :param runlevel: sys_v runlevel to set as default in inittab486    #     :type runlevel: str487    #     """488    #     raise NotImplemented489def convert_sysv_runlevel(level):490    """491    Convert runlevel to systemd target.492    :param level: sys_v runlevel493    :type level: str or int494    :return: systemd target495    :rtype: str496    :raise ValueError: when runlevel is unknown497    """498    runlevel = str(level)499    if runlevel == '0':500        target = "poweroff.target"501    elif runlevel in ['1', "s", "single"]:502        target = "rescue.target"503    elif runlevel in ['2', '3', '4']:504        target = "multi-user.target"505    elif runlevel == '5':506        target = "graphical.target"507    elif runlevel == '6':508        target = "reboot.target"509    else:510        raise ValueError("unknown runlevel %s" % level)511    return target512def convert_systemd_target_to_runlevel(target):513    """514    Convert systemd target to runlevel.515    :param target: systemd target516    :type target: str517    :return: sys_v runlevel518    :rtype: str519    :raise ValueError: when systemd target is unknown520    """521    if target == "poweroff.target":522        runlevel = '0'523    elif target == "rescue.target":524        runlevel = 's'525    elif target == "multi-user.target":526        runlevel = '3'527    elif target == "graphical.target":528        runlevel = '5'529    elif target == "reboot.target":530        runlevel = '6'531    else:532        raise ValueError("unknown target %s" % target)533    return runlevel534class _SystemdServiceManager(_GenericServiceManager):535    """536    Concrete class that implements the SystemdServiceManager537    """538    def __init__(self, service_command_generator, service_result_parser, run=utils.run):539        """540        Create the GenericServiceManager for systemd services.541        :param service_command_generator:542        :type service_command_generator: _ServiceCommandGenerator543        :param run: function to call to run the commands, default utils.run544        :type run: function545        """546        super(_SystemdServiceManager, self).__init__(service_command_generator,547                                                     service_result_parser, run)548    @staticmethod549    def change_default_runlevel(runlevel='multi-user.target'):550        # atomic symlinking, symlink and then rename551        """552        Set the default systemd target.553        Create the symlink in a temp directory and then use554        atomic rename to move the symlink into place.555        :param runlevel: default systemd target556        :type runlevel: str557        """558        tmp_symlink = mktemp(dir="/etc/systemd/system")559        os.symlink("/usr/lib/systemd/system/%s" % runlevel, tmp_symlink)560        os.rename(tmp_symlink, "/etc/systemd/system/default.target")561_command_generators = {"init": sys_v_init_command_generator,562                       "systemd": systemd_command_generator}563_result_parsers = {"init": sys_v_init_result_parser,564                   "systemd": systemd_result_parser}565_service_managers = {"init": _SysVInitServiceManager,566                     "systemd": _SystemdServiceManager}567def _get_service_result_parser(run=utils.run):568    """569    Get the ServiceResultParser using the auto-detect init command.570    :return: ServiceResultParser fro the current init command.571    :rtype: _ServiceResultParser572    """573    # pylint: disable=W0601574    global _service_result_parser575    try:576        return _service_result_parser577    except NameError:578        result_parser = _result_parsers[get_name_of_init(run)]579        _service_result_parser = _ServiceResultParser(result_parser)580        return _service_result_parser581def _get_service_command_generator(run=utils.run):582    """583    Lazy initializer for ServiceCommandGenerator using the auto-detect init command.584    :return: ServiceCommandGenerator for the current init command.585    :rtype: _ServiceCommandGenerator586    """587    # _service_command_generator is explicitly undefined so that we get the NameError on first access588    # pylint: disable=W0601589    global _service_command_generator590    try:591        return _service_command_generator592    except NameError:593        command_generator = _command_generators[get_name_of_init(run)]594        _service_command_generator = _ServiceCommandGenerator(595            command_generator)596        return _service_command_generator597def ServiceManager(run=utils.run):598    """599    Detect which init program is being used, init or systemd and return a600    class has methods to start/stop services.601    # Get the system service manager602    service_manager = ServiceManager()603    # Stating service/unit "sshd"604    service_manager.start("sshd")605    # Getting a list of available units606    units = service_manager.list()607    # Disabling and stopping a list of services608    services_to_disable = ['ntpd', 'httpd']609    for s in services_to_disable:610        service_manager.disable(s)611        service_manager.stop(s)612    :return: SysVInitServiceManager or SystemdServiceManager613    :rtype: _GenericServiceManager614    """615    service_manager = _service_managers[get_name_of_init(run)]616    # _service_command_generator is explicitly undefined so that we get the NameError on first access617    # pylint: disable=W0601618    global _service_manager619    try:620        return _service_manager621    except NameError:622        _service_manager = service_manager(_get_service_command_generator(run),623                                           _get_service_result_parser(run))624        return _service_manager625def _auto_create_specific_service_result_parser(run=utils.run):626    """627    Create a class that will create partial functions that generate result_parser628    for the current init command.629    :return: A ServiceResultParser for the auto-detected init command.630    :rtype: _ServiceResultParser631    """632    result_parser = _result_parsers[get_name_of_init(run)]633    # remove list method634    command_list = [c for c in COMMANDS if c not in ["list", "set_target"]]635    return _ServiceResultParser(result_parser, command_list)636def _auto_create_specific_service_command_generator(run=utils.run):637    """638    Create a class that will create partial functions that generate commands639    for the current init command.640    lldpad = SpecificServiceManager("lldpad",641     auto_create_specific_service_command_generator())642    lldpad.start()643    lldpad.stop()644    :return: A ServiceCommandGenerator for the auto-detected init command.645    :rtype: _ServiceCommandGenerator646    """647    command_generator = _command_generators[get_name_of_init(run)]648    # remove list method649    command_list = [c for c in COMMANDS if c not in ["list", "set_target"]]650    return _ServiceCommandGenerator(command_generator, command_list)651def SpecificServiceManager(service_name, run=utils.run):652    """653    # Get the specific service manager for sshd654    sshd = SpecificServiceManager("sshd")655    sshd.start()656    sshd.stop()657    sshd.reload()658    sshd.restart()659    sshd.condrestart()660    sshd.status()661    sshd.enable()...
Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.