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