84 lines
2.3 KiB
Python
84 lines
2.3 KiB
Python
"""Sensor for monitoring the size of a file."""
|
|
import datetime
|
|
import logging
|
|
import os
|
|
|
|
import voluptuous as vol
|
|
|
|
from homeassistant.helpers.entity import Entity
|
|
import homeassistant.helpers.config_validation as cv
|
|
from homeassistant.components.sensor import PLATFORM_SCHEMA
|
|
|
|
_LOGGER = logging.getLogger(__name__)
|
|
|
|
|
|
CONF_FILE_PATHS = "file_paths"
|
|
ICON = "mdi:file"
|
|
|
|
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
|
|
{vol.Required(CONF_FILE_PATHS): vol.All(cv.ensure_list, [cv.isfile])}
|
|
)
|
|
|
|
|
|
def setup_platform(hass, config, add_entities, discovery_info=None):
|
|
"""Set up the file size sensor."""
|
|
sensors = []
|
|
for path in config.get(CONF_FILE_PATHS):
|
|
if not hass.config.is_allowed_path(path):
|
|
_LOGGER.error("Filepath %s is not valid or allowed", path)
|
|
continue
|
|
sensors.append(Filesize(path))
|
|
|
|
if sensors:
|
|
add_entities(sensors, True)
|
|
|
|
|
|
class Filesize(Entity):
|
|
"""Encapsulates file size information."""
|
|
|
|
def __init__(self, path):
|
|
"""Initialize the data object."""
|
|
self._path = path # Need to check its a valid path
|
|
self._size = None
|
|
self._last_updated = None
|
|
self._name = path.split("/")[-1]
|
|
self._unit_of_measurement = "MB"
|
|
|
|
def update(self):
|
|
"""Update the sensor."""
|
|
statinfo = os.stat(self._path)
|
|
self._size = statinfo.st_size
|
|
last_updated = datetime.datetime.fromtimestamp(statinfo.st_mtime)
|
|
self._last_updated = last_updated.isoformat()
|
|
|
|
@property
|
|
def name(self):
|
|
"""Return the name of the sensor."""
|
|
return self._name
|
|
|
|
@property
|
|
def state(self):
|
|
"""Return the size of the file in MB."""
|
|
decimals = 2
|
|
state_mb = round(self._size / 1e6, decimals)
|
|
return state_mb
|
|
|
|
@property
|
|
def icon(self):
|
|
"""Icon to use in the frontend, if any."""
|
|
return ICON
|
|
|
|
@property
|
|
def device_state_attributes(self):
|
|
"""Return other details about the sensor state."""
|
|
attr = {
|
|
"path": self._path,
|
|
"last_updated": self._last_updated,
|
|
"bytes": self._size,
|
|
}
|
|
return attr
|
|
|
|
@property
|
|
def unit_of_measurement(self):
|
|
"""Return the unit of measurement of this entity, if any."""
|
|
return self._unit_of_measurement
|