Add Logger configured via cli args to main cmd group.

README.md

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+# Iottb
+## Basic Invocation
+
+## Configuration
+### Env Vars
+- IOTTB_CONF_HOME
+
+By setting this variable you control where the basic iottb application
+configuration should be looked for

iottb/main.py

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+import subprocess
+
+import click
+from pathlib import PurePath
+import configparser
+import logging
+from logging.handlers import RotatingFileHandler
+import sys
+
+APP_NAME = 'iottb'
+MAX_VERBOSITY = 3
+
+
+def setup_logging(verbosity, debug):
+    # Formats
+    console_log_formats = {
+        0: '%(levelname)s - %(message)s',
+        1: '%(levelname)s - %(module)s - %(message)s',
+        2: '%(levelname)s - %(asctime)s - %(module)s - %(funcName)s - %(lineno)d - %(message)s'
+    }
+
+    file_log_formats = {
+        0: '%(levelname)s - %(asctime)s - %(module)s  - %(message)s',
+        1: '%(levelname)s - %(asctime)s - %(module)s - %(funcName)s - %(message)s',
+        2: '%(levelname)s - %(asctime)s - %(module)s - %(funcName)s - %(lineno)d - %(message)s'
+    }
+
+    # set default log level, change later based on parameters
+    log_level = logging.ERROR
+    logger = logging.getLogger()
+    date_format = '%Y-%m-%d %H:%M:%S'
+    if verbosity > 0:
+        log_level = logging.WARNING
+        if verbosity > MAX_VERBOSITY:
+            verbosity = MAX_VERBOSITY
+            log_level = logging.INFO
+        assert verbosity <= MAX_VERBOSITY, f'Verbosity must be <= {MAX_VERBOSITY}'
+        console_handler = logging.StreamHandler(sys.stdout)
+        console_handler.setFormatter(logging.Formatter(console_log_formats[verbosity], datefmt=date_format))
+        console_handler.setLevel(logging.DEBUG)  # can keep at debug since it depends on global level?
+        logger.addHandler(console_handler)
+
+    if debug:
+        log_level = logging.DEBUG
+
+    # Logfile logs INFO+, no debugs though
+    file_handler = RotatingFileHandler(f'{APP_NAME}.log', maxBytes=10240, backupCount=5)
+    file_handler.setFormatter(logging.Formatter(file_log_formats[verbosity], datefmt=date_format))
+    file_handler.setLevel(logging.INFO)
+
+    # finnish setting up logging
+    logger.addHandler(file_handler)
+    logger.setLevel(log_level)
+    return logger
+
+
+class Environment:
+    def __init__(self, cfg=None, db=None, device=None):
+        self.cfg = cfg
+        self.db = db
+        self.device = device
+        pass
+
+
+def load_config(cfg_file_path):
+    cfg_file = PurePath(click.get_app_dir(APP_NAME)).joinpath('iottb.cfg')
+
+
+@click.group()
+@click.option('-v', '--verbosity', type=click.IntRange(0, MAX_VERBOSITY), default=0,
+              help='Verbosity level')
+@click.option('-d', '--debug', is_flag=True, default=False, help='Debug mode')
+@click.option('--cfg-file', type=click.Path(), default=PurePath(click.get_app_dir(APP_NAME)).joinpath('iottb.cfg'),
+              envvar='IOTTB_CONF_HOME',)
+def main(debug, verbose):
+    setup_logging(verbose, debug)
+
+
+if __name__ == '__main__':
+    main(auto_envvar_prefix='IOTTB')

pyproject.toml

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+[tool.poetry]
+name = "iottb"
+version = "0.1.0"
+description = "IoT Testbed"
+authors = ["Sebastian Lenzlinger <sebastian.lenzlinger@unibas.ch>"]
+readme = "README.md"
+
+[tool.poetry.dependencies]
+python = "^3.12"
+
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"