2024-06-28 18:12:27 +02:00

90 lines
3.5 KiB
Python

import json
import click
from pathlib import Path
import logging
import re
from iottb import definitions
from iottb.models.device_metadata import DeviceMetadata
from iottb.models.iottb_config import IottbConfig
from iottb.definitions import CFG_FILE_PATH
logger = logging.getLogger(__name__)
def add_device_guided(ctx, cn, db):
click.echo('TODO: Implement')
logger.info('Adding device interactively')
#logger.debug(f'Parameters: {params}. value: {value}')
@click.command('add-device', help='Add a device to a database')
@click.option('--dev', '--device-name', type=str, required=True,
help='The name of the device to be added. If this string contains spaces or other special characters \
normalization is performed to derive a canonical name')
@click.option('--db', '--database', type=click.Path(exists=True, file_okay=False, dir_okay=True, path_type=Path),
envvar='IOTTB_DB', show_envvar=True,
help='Database in which to add this device. If not specified use default from config.')
@click.option('--guided', is_flag=True, default=False, show_default=True, envvar='IOTTB_GUIDED_ADD', show_envvar=True,
help='Add device interactively')
def add_device(dev, db, guided):
"""Add a new device to a database
Device name must be supplied unless in an interactive setup. Database is taken from config by default.
"""
logger.info('add-device invoked')
# Step 1: Load Config
# Dependency: Config file must exist
config = IottbConfig(Path(CFG_FILE_PATH))
logger.debug(f'Config loaded: {config}')
# Step 2: Load database
# dependency: Database folder must exist
if db:
database = db
path = config.db_path_dict
logger.debug(f'Resolved (path, db) {path}, {database}')
else:
path = config.default_db_location
database = config.default_database
logger.debug(f'Default (path, db) {path}, {database}')
click.secho(f'Using database {database}')
full_db_path = Path(path) / database
if not full_db_path.is_dir():
logger.warning(f'No database at {database}')
click.echo(f'Could not find a database.')
click.echo(f'You need to initialize the testbed before before you add devices!')
click.echo(f'To initialize the testbed in the default location run "iottb init-db"')
click.echo('Exiting...')
exit()
# Step 3: Check if device already exists in database
# dependency: DeviceMetadata object
device_metadata = DeviceMetadata(device_name=dev)
device_dir = full_db_path / device_metadata.canonical_name
# Check if device is already registered
if device_dir.exists():
logger.warning(f'Device directory {device_dir} already exists.')
click.echo(f'Device {dev} already exists in the database.')
click.echo('Exiting...')
exit()
try:
device_dir.mkdir()
except OSError as e:
logger.error(f'Error trying to create device {e}')
click.echo('Exiting...')
exit()
# Step 4: Save metadata into device_dir
metadata_path = device_dir / definitions.DEVICE_METADATA_FILE_NAME
with metadata_path.open('w') as metadata_file:
json.dump(device_metadata.__dict__, metadata_file, indent=4)
click.echo(f'Successfully added device {dev} to database')
logger.debug(f'Added device {dev} to database {database}. Full path of metadata {metadata_path}')
logger.info(f'Metadata for {dev} {device_metadata.print_attributes()}')