shared.py

import yaml
import sys
import argparse
from slack_bolt import App
parser = argparse.ArgumentParser()
parser.add_argument('--journald', action='store_true',
                    help='Use systemd journal outputs instead of stdout and stderr')
parser.add_argument('-c', '--config',
                    help='Specify a path for a config.yaml',
                    default='/etc/slack-parrotbot/config.yaml')
args = parser.parse_args()

if args.journald:
	from systemd import journal
	debug_stream  = journal.stream('slack-parrotbot', priority=7)
	info_stream   = journal.stream('slack-parrotbot', priority=6)
	warn_stream   = journal.stream('slack-parrotbot', priority=4)
	err_stream    = journal.stream('slack-parrotbot', priority=3)

	sys.stdout = info_stream
	sys.stderr = err_stream

else:
	debug_stream  = sys.stdout
	info_stream   = sys.stdout
	warn_stream   = sys.stderr
	err_stream    = sys.stderr

if args.config is not None:
	config_file = args.config
	if args.config == '/etc/slack-parrotbot/config.yaml':
		print("No config file specified, defaulting to /etc/slack-parrotbot/config.yaml...",
		      file = warn_stream)
else:
	print("argparse is broken, I am confused, abort.", file=err_stream)
	raise SystemExit(1)


config = yaml.load(open(config_file), Loader=yaml.loader.FullLoader)

app = App(token = config['slack_bot_token'])