235 lines
8 KiB
Python
Executable file
235 lines
8 KiB
Python
Executable file
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# 2010-2013 Nico Schottelius (nico-cdist at schottelius.org)
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# 2016 Darko Poljak (darko.poljak at gmail.com)
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#
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# This file is part of cdist.
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#
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# cdist is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# cdist is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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#
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# list of beta arguments for sub-commands
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BETA_ARGS = {
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'config': ['jobs', ],
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}
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def check_positive_int(value):
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import argparse
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try:
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val = int(value)
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except ValueError as e:
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raise argparse.ArgumentTypeError(
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"{} is invalid int value".format(value))
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if val <= 0:
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raise argparse.ArgumentTypeError(
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"{} is invalid positive int value".format(val))
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return val
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def check_beta(args_dict):
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if 'beta' not in args_dict:
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args_dict['beta'] = False
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# Check only if beta is not enabled: if beta option is specified then
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# raise error.
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if not args_dict['beta']:
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err_msg = ("\'{}\' is beta, but beta is not enabled. If you want "
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"to use it please enable beta functionalities.")
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cmd = args_dict['command']
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for arg in BETA_ARGS[cmd]:
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if arg in args_dict:
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raise cdist.CdistBetaRequired(cmd, arg)
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def commandline():
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"""Parse command line"""
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import argparse
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import cdist.banner
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import cdist.config
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import cdist.shell
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import shutil
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import os
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import multiprocessing
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# Construct parser others can reuse
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parser = {}
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# Options _all_ parsers have in common
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parser['loglevel'] = argparse.ArgumentParser(add_help=False)
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parser['loglevel'].add_argument(
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'-d', '--debug', help='Set log level to debug',
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action='store_true', default=False)
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parser['loglevel'].add_argument(
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'-v', '--verbose', help='Set log level to info, be more verbose',
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action='store_true', default=False)
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# Main subcommand parser
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parser['main'] = argparse.ArgumentParser(
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description='cdist ' + cdist.VERSION, parents=[parser['loglevel']])
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parser['main'].add_argument(
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'-V', '--version', help='Show version', action='version',
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version='%(prog)s ' + cdist.VERSION)
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parser['sub'] = parser['main'].add_subparsers(
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title="Commands", dest="command")
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# Banner
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parser['banner'] = parser['sub'].add_parser(
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'banner', parents=[parser['loglevel']])
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parser['banner'].set_defaults(func=cdist.banner.banner)
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# Config
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parser['config'] = parser['sub'].add_parser(
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'config', parents=[parser['loglevel']])
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parser['config'].add_argument(
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'host', nargs='*', help='host(s) to operate on')
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parser['config'].add_argument(
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'-c', '--conf-dir',
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help=('Add configuration directory (can be repeated, '
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'last one wins)'), action='append')
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parser['config'].add_argument(
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'-f', '--file',
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help=('Read additional hosts to operate on from specified file '
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'or from stdin if \'-\' (each host on separate line). '
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'If no host or host file is specified then, by default, '
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'read hosts from stdin.'),
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dest='hostfile', required=False)
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parser['config'].add_argument(
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'-i', '--initial-manifest',
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help='Path to a cdist manifest or \'-\' to read from stdin.',
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dest='manifest', required=False)
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parser['config'].add_argument(
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'-n', '--dry-run',
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help='Do not execute code', action='store_true')
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parser['config'].add_argument(
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'-o', '--out-dir',
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help='Directory to save cdist output in', dest="out_path")
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parser['config'].add_argument(
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'-p', '--parallel',
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help='Operate on multiple hosts in parallel',
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action='store_true', dest='parallel')
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parser['config'].add_argument(
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'-s', '--sequential',
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help='Operate on multiple hosts sequentially (default)',
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action='store_false', dest='parallel')
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# remote-copy and remote-exec defaults are environment variables
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# if set; if not then None - these will be futher handled after
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# parsing to determine implementation default
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parser['config'].add_argument(
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'--remote-copy',
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help='Command to use for remote copy (should behave like scp)',
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action='store', dest='remote_copy',
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default=os.environ.get('CDIST_REMOTE_COPY'))
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parser['config'].add_argument(
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'--remote-exec',
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help=('Command to use for remote execution '
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'(should behave like ssh)'),
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action='store', dest='remote_exec',
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default=os.environ.get('CDIST_REMOTE_EXEC'))
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parser['config'].add_argument(
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'-j', '--jobs', nargs='?', type=check_positive_int,
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help=('Specify the maximum number of parallel jobs, currently '
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'only global explorers are supported (currently in beta'),
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action='store', dest='jobs',
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const=multiprocessing.cpu_count())
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parser['config'].add_argument(
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'-b', '--enable-beta',
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help=('Enable beta functionalities. Beta functionalities '
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'include the following options: -j/--jobs.'),
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action='store_true', dest='beta', default=False)
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parser['config'].set_defaults(func=cdist.config.Config.commandline)
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# Shell
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parser['shell'] = parser['sub'].add_parser(
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'shell', parents=[parser['loglevel']])
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parser['shell'].add_argument(
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'-s', '--shell',
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help=('Select shell to use, defaults to current shell. Used shell'
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' should be POSIX compatible shell.'))
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parser['shell'].set_defaults(func=cdist.shell.Shell.commandline)
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for p in parser:
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parser[p].epilog = (
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"Get cdist at http://www.nico.schottelius.org/software/cdist/")
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args = parser['main'].parse_args(sys.argv[1:])
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# Loglevels are handled globally in here and debug wins over verbose
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if args.verbose:
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logging.root.setLevel(logging.INFO)
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if args.debug:
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logging.root.setLevel(logging.DEBUG)
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log.debug(args)
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log.info("version %s" % cdist.VERSION)
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# Work around python 3.3 bug:
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# http://bugs.python.org/issue16308
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# http://bugs.python.org/issue9253
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# FIXME: catching AttributeError also hides
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# real problems.. try a different way
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# FIXME: we always print main help, not
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# the help of the actual parser being used!
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try:
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getattr(args, "func")
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except AttributeError:
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parser['main'].print_help()
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sys.exit(0)
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check_beta(vars(args))
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args.func(args)
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if __name__ == "__main__":
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# Sys is needed for sys.exit()
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import sys
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cdistpythonversion = '3.2'
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if sys.version < cdistpythonversion:
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print('Python >= ' + cdistpythonversion +
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' is required on the source host.', file=sys.stderr)
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sys.exit(1)
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exit_code = 0
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try:
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import logging
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import os
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import re
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import cdist
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import cdist.log
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logging.setLoggerClass(cdist.log.Log)
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logging.basicConfig(format='%(levelname)s: %(message)s')
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log = logging.getLogger("cdist")
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if re.match("__", os.path.basename(sys.argv[0])):
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import cdist.emulator
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emulator = cdist.emulator.Emulator(sys.argv)
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emulator.run()
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else:
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commandline()
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except KeyboardInterrupt:
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exit_code = 2
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except cdist.Error as e:
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log.error(e)
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exit_code = 1
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sys.exit(exit_code)
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