How to add log handlers like FileHandler?

[jasondamour]

Hello,

I'm new to Logbook and the EventManager approach that DBT uses for logging. I'd like to add a new additional FileHandler, without impacting the existing Text and RotatingFile handlers. Here's what I've tried so far:

1. Built in Logging:

import logging
from dbt.cli.main import dbtRunner

logging.getLogger('dbt').addHandler(logging.FileHandler('TEST.txt'))
dbtRunner().invoke(args=["run"])

2. Using dbt.logger

import logging
from dbt.cli.main import dbtRunner
import dbt.logger as logger

logger.log_manager.add_handler(logging.FileHandler('TEST.txt'))
dbtRunner().invoke(args=["run"])

3. Using EventManager

import logging
from dbt.cli.main import dbtRunner
from dbt.events.eventmgr import EventManager
from dbt.events.logger import LoggerConfig

EventManager().add_logger(LoggerConfig(name='dbt', logger=logging.FileHandler('TEST.txt')))
dbtRunner().invoke(args=["run"])

Every time, the file is createdbut empty. I'm clearly not understanding this!