wait-until-done

wait-until-done.py

#!python3
import os
import argparse
import time

parser = argparse.ArgumentParser(
                    prog='wait-until-done',
                    description='Waits until a process has completed. Usage like "python3 wait-until-done 1234 && do-next-command". Use "ps aux" to get the Process ID you are looking for.')

parser.add_argument('pid')
parser.add_argument('--interval-seconds', type=int, default=10)
args = parser.parse_args()

initial_exists = os.path.exists("/proc/{}".format(args.pid))
if initial_exists is False:
	raise Exception("/proc/{} did not exist at the beginning".format(args.pid))

while True:
	time.sleep(args.interval_seconds)
	exists = os.path.exists("/proc/{}".format(args.pid))
	if exists is False:
		exit(0)