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# ***** BEGIN LICENSE BLOCK *****
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this file,
# You can obtain one at http://mozilla.org/MPL/2.0/.
# ***** END LICENSE BLOCK *****
import logging
from subprocess import check_call, CalledProcessError
import sys
from redo import retrying
log = logging.getLogger(__name__)
def main():
from argparse import ArgumentParser
parser = ArgumentParser()
parser.add_argument(
"-a", "--attempts", type=int, default=5,
help="How many times to retry.")
parser.add_argument(
"-s", "--sleeptime", type=int, default=60,
help="How long to sleep between attempts. Sleeptime doubles after each attempt.")
parser.add_argument(
"-m", "--max-sleeptime", type=int, default=5*60,
help="Maximum length of time to sleep between attempts (limits backoff length).")
parser.add_argument("-v", "--verbose", action="store_true", default=False)
parser.add_argument("cmd", nargs="+", help="Command to run. Eg: wget http://blah")
args = parser.parse_args()
if args.verbose:
logging.basicConfig(level=logging.INFO)
logging.getLogger("retry").setLevel(logging.INFO)
else:
logging.basicConfig(level=logging.ERROR)
logging.getLogger("retry").setLevel(logging.ERROR)
try:
with retrying(check_call, attempts=args.attempts, sleeptime=args.sleeptime,
max_sleeptime=args.max_sleeptime,
retry_exceptions=(CalledProcessError,)) as r_check_call:
r_check_call(args.cmd)
except KeyboardInterrupt:
sys.exit(-1)
except Exception as e:
log.error("Unable to run command after %d attempts" % args.attempts, exc_info=True)
rc = getattr(e, "returncode", -2)
sys.exit(rc)
if __name__ == "__main__":
main()
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