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#!/usr/bin/env python3
# File: logout-manager-cli
# License: CC-BY-SA 4.0
# Author: bgstack15
# Startdate: 2020-03-10 18:40
# Title: cli logout manager
# Purpose: Feature completeness in this package
# History:
# Usage:
# logout-manager-cli
# Reference:
# https://stackoverflow.com/questions/39092149/argparse-how-to-make-mutually-exclusive-arguments-optional/39092229#39092229
# https://stackoverflow.com/questions/3061/calling-a-function-of-a-module-by-using-its-name-a-string/12025554#12025554
# Improve:
# Dependencies:
# Devuan: python3-dotenv python3
# Documentation:
import os, platform, sys, argparse
from dotenv import load_dotenv
# all this to load the libpath
try:
defaultdir="/etc/sysconfig"
thisplatform = platform.platform().lower()
if 'debian' in thisplatform or 'devuan' in thisplatform:
defaultdir="/etc/default"
# load_dotenv keeps existing environment variables as higher precedent
load_dotenv(os.path.join(defaultdir,"logout-manager"))
except:
pass
if 'LOGOUT_MANAGER_LIBPATH' in os.environ:
for i in os.environ['LOGOUT_MANAGER_LIBPATH'].split(":"):
sys.path.append(i)
import lmlib
def eprint(*args, **kwargs):
print(*args, file=sys.stderr, **kwargs)
logout_manager_cli_version="2020-03-10"
parser = argparse.ArgumentParser(description="run logout-manager commands using cli")
parser.add_argument('action', help='which action to take',nargs='?', choices=('lock','logout','hibernate','shutdown','reboot'))
parser.add_argument("-d","--debug", nargs='?', default=0, type=int, choices=range(0,11), help="Set debug level.")
parser.add_argument("-n","--dryrun", action='store_true', help="only report. Useful for checking if hibernate is allowed.")
parser.add_argument("-V","--version", action="version", version="%(prog)s " + logout_manager_cli_version)
args = parser.parse_args()
# load configs
# in cli, must happen after arparse to benefit from debug value
config = lmlib.Initialize_config(os.environ['LOGOUT_MANAGER_CONF'])
actions = lmlib.Actions
# MAIN LOOP
allowed_actions=['lock','logout','shutdown','reboot']
if config.can_hibernate:
allowed_actions.append('hibernate')
if args.action in allowed_actions:
func = getattr(globals()['actions'],args.action)
func(config)
sys.exit(0)
elif args.action:
eprint("Unable to take action: %s" % str(args.action))
sys.exit(1)
# if we get here, no action was used
parser.print_help()
sys.exit(2)
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