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117 lines
2.9 KiB
Python
117 lines
2.9 KiB
Python
#!/usr/bin/env python
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# PYTHON_ARGCOMPLETE_OK
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"""Automatically retry failed commands."""
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from __future__ import absolute_import, print_function
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# noinspection PyCompatibility
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import argparse
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import errno
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import os
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import sys
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import time
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from lib.util import (
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display,
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raw_command,
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ApplicationError,
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ApplicationWarning,
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SubprocessError,
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)
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try:
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import argcomplete
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except ImportError:
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argcomplete = None
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def main():
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"""Main program function."""
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try:
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args = parse_args()
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display.verbosity = args.verbosity
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display.color = args.color
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command = [args.command] + args.args
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for attempt in range(0, args.tries):
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if attempt > 0:
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time.sleep(args.sleep)
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try:
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raw_command(command, env=os.environ)
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return
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except SubprocessError as ex:
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display.error(ex)
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except ApplicationWarning as ex:
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display.warning(str(ex))
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exit(0)
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except ApplicationError as ex:
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display.error(str(ex))
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exit(1)
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except KeyboardInterrupt:
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exit(2)
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except IOError as ex:
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if ex.errno == errno.EPIPE:
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exit(3)
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raise
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def parse_args():
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"""Parse command line arguments."""
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parser = argparse.ArgumentParser()
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parser.add_argument('-v', '--verbose',
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dest='verbosity',
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action='count',
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default=0,
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help='display more output')
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parser.add_argument('--color',
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metavar='COLOR',
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nargs='?',
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help='generate color output: %(choices)s',
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choices=('yes', 'no', 'auto'),
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const='yes',
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default='auto')
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parser.add_argument('--tries',
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metavar='TRIES',
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type=int,
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default=3,
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help='number of tries to execute command (default: %(default)s)')
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parser.add_argument('--sleep',
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metavar='SECONDS',
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type=int,
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default=3,
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help='seconds to sleep between tries (default: %(default)s)')
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parser.add_argument('command',
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help='command to execute')
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parser.add_argument('args',
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metavar='...',
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nargs=argparse.REMAINDER,
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help='optional arguments for command')
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if argcomplete:
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argcomplete.autocomplete(parser)
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args = parser.parse_args()
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if args.color == 'yes':
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args.color = True
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elif args.color == 'no':
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args.color = False
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elif 'SHIPPABLE' in os.environ:
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args.color = True
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else:
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args.color = sys.stdout.isatty()
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return args
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if __name__ == '__main__':
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main()
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