48 lines
1.8 KiB
Python
Executable file
48 lines
1.8 KiB
Python
Executable file
#!/usr/bin/env python2
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import argparse
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import os
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import sys
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from utils import shellcmd
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def main():
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"""Run the specified command only if conditions are met.
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Two conditions are checked. First, the CONDITION must be true.
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Secondly, all NEED names must be in the set of HAVE names.
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If both conditions are met, the command defined by the remaining
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arguments is run in a shell.
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"""
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argparser = argparse.ArgumentParser(
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description=' ' + main.__doc__,
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formatter_class=argparse.ArgumentDefaultsHelpFormatter)
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argparser.add_argument('--cond', choices={'true', 'false'} , required=False,
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default='true', metavar='CONDITION',
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help='Condition to test.')
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argparser.add_argument('--need', required=False, default=[],
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action='append', metavar='NEED',
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help='Needed name. May be repeated.')
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argparser.add_argument('--have', required=False, default=[],
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action='append', metavar='HAVE',
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help='Name you have. May be repeated.')
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argparser.add_argument('--echo-cmd', required=False,
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action='store_true',
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help='Trace the command before running.')
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argparser.add_argument('--command', nargs=argparse.REMAINDER,
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help='Command to run if attributes found.')
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args = argparser.parse_args()
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# Quit early if no command to run.
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if not args.command:
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raise RuntimeError("No command argument(s) specified for ifatts")
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if args.cond == 'true' and set(args.need) <= set(args.have):
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stdout_result = shellcmd(args.command, echo=args.echo_cmd)
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if not args.echo_cmd:
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sys.stdout.write(stdout_result)
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if __name__ == '__main__':
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main()
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sys.exit(0)
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