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# ========================================================================== #
# #
# KVMD - The main PiKVM daemon. #
# #
# Copyright (C) 2018-2022 Maxim Devaev <[email protected]> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <https://www.gnu.org/licenses/>. #
# #
# ========================================================================== #
from typing import List
from typing import Dict
from typing import Set
from typing import Callable
from typing import Any
from ...logging import get_logger
from ... import tools
from ... import aiotools
from ... import aioproc
from ...yamlconf import Option
from ...validators.os import valid_command
from . import GpioDriverOfflineError
from . import UserGpioModes
from . import BaseUserGpioDriver
# =====
class Plugin(BaseUserGpioDriver): # pylint: disable=too-many-instance-attributes
def __init__( # pylint: disable=super-init-not-called
self,
instance_name: str,
notifier: aiotools.AioNotifier,
cmd: List[str],
) -> None:
super().__init__(instance_name, notifier)
self.__cmd = cmd
@classmethod
def get_plugin_options(cls) -> Dict:
return {
"cmd": Option([], type=valid_command),
}
@classmethod
def get_modes(cls) -> Set[str]:
return set([UserGpioModes.OUTPUT])
@classmethod
def get_pin_validator(cls) -> Callable[[Any], Any]:
return str
async def read(self, pin: str) -> bool:
_ = pin
return False
async def write(self, pin: str, state: bool) -> None:
_ = pin
if not state:
return
try:
proc = await aioproc.log_process(self.__cmd, logger=get_logger(0), prefix=str(self))
if proc.returncode != 0:
raise RuntimeError(f"Custom command error: retcode={proc.returncode}")
except Exception as err:
get_logger(0).error("Can't run custom command [ %s ]: %s",
tools.cmdfmt(self.__cmd), tools.efmt(err))
raise GpioDriverOfflineError(self)
def __str__(self) -> str:
return f"CMD({self._instance_name})"
__repr__ = __str__
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