434 lines
18 KiB
Python
434 lines
18 KiB
Python
import argparse
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import cdist
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import multiprocessing
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import logging
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import collections
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import cdist.configuration
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# set of beta sub-commands
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BETA_COMMANDS = set(('install', 'inventory', ))
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# set of beta arguments for sub-commands
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BETA_ARGS = {
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'config': set(('jobs', 'tag', 'all_tagged_hosts', 'use_archiving', )),
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}
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EPILOG = "Get cdist at http://www.nico.schottelius.org/software/cdist/"
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# Parser others can reuse
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parser = None
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_verbosity_level_off = -2
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_verbosity_level = {
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_verbosity_level_off: logging.OFF,
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-1: logging.ERROR,
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0: logging.WARNING,
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1: logging.INFO,
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2: logging.VERBOSE,
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3: logging.DEBUG,
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4: logging.TRACE,
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}
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# Generate verbosity level constants:
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# VERBOSE_OFF, VERBOSE_ERROR, VERBOSE_WARNING, VERBOSE_INFO, VERBOSE_VERBOSE,
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# VERBOSE_DEBUG, VERBOSE_TRACE.
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this_globals = globals()
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for level in _verbosity_level:
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const = 'VERBOSE_' + logging.getLevelName(_verbosity_level[level])
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this_globals[const] = level
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# All verbosity levels above 4 are TRACE.
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_verbosity_level = collections.defaultdict(
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lambda: logging.TRACE, _verbosity_level)
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def add_beta_command(cmd):
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BETA_COMMANDS.add(cmd)
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def add_beta_arg(cmd, arg):
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if cmd in BETA_ARGS:
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if arg not in BETA_ARGS[cmd]:
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BETA_ARGS[cmd].append(arg)
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else:
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BETA_ARGS[cmd] = set((arg, ))
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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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cmd = args_dict['command']
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# first check if command is beta
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if cmd in BETA_COMMANDS:
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raise cdist.CdistBetaRequired(cmd)
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# then check if some command's argument is beta
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if cmd in BETA_ARGS:
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for arg in BETA_ARGS[cmd]:
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if arg in args_dict and args_dict[arg]:
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raise cdist.CdistBetaRequired(cmd, arg)
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def check_positive_int(value):
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try:
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val = int(value)
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except ValueError:
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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 get_parsers():
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global parser
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# Construct parser others can reuse
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if parser:
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return parser
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else:
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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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'-q', '--quiet',
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help='Quiet mode: disables logging, including WARNING and ERROR.',
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action='store_true', default=False)
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parser['loglevel'].add_argument(
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'-v', '--verbose',
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help=('Increase the verbosity level. Every instance of -v '
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'increments the verbosity level by one. Its default value '
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'is 0 which includes ERROR and WARNING levels. '
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'The levels, in order from the lowest to the highest, are: '
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'ERROR (-1), WARNING (0), INFO (1), VERBOSE (2), DEBUG (3) '
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'TRACE (4 or higher).'),
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action='count', default=0)
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parser['beta'] = argparse.ArgumentParser(add_help=False)
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parser['beta'].add_argument(
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'-b', '--beta',
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help=('Enable beta functionality. '),
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action='store_true', dest='beta',
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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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parser['inventory_common'] = argparse.ArgumentParser(add_help=False)
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parser['inventory_common'].add_argument(
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'-I', '--inventory',
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help=('Use specified custom inventory directory. '
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'Inventory directory is set up by the following rules: '
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'if cdist configuration resolves this value then specified '
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'directory is used, '
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'if HOME env var is set then ~/.cdist/inventory is '
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'used, otherwise distribution inventory directory is used.'),
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dest="inventory_dir", required=False)
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parser['common'] = argparse.ArgumentParser(add_help=False)
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parser['common'].add_argument(
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'-g', '--config-file',
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help=('Use specified custom configuration file.'),
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dest="config_file", required=False)
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# Config
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parser['config_main'] = argparse.ArgumentParser(add_help=False)
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parser['config_main'].add_argument(
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'-C', '--cache-path-pattern',
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help=('Specify custom cache path pattern. If '
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'it is not set then default hostdir is used.'),
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dest='cache_path_pattern',
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default=None)
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parser['config_main'].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_main'].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_main'].add_argument(
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'-j', '--jobs', nargs='?',
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type=check_positive_int,
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help=('Operate in parallel in specified maximum number of jobs. '
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'Global explorers, object prepare and object run are '
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'supported. Without argument CPU count is used by default. '
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'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_main'].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_main'].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_main'].add_argument(
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'-R', '--use-archiving', nargs='?',
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choices=('tar', 'tgz', 'tbz2', 'txz',),
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help=('Operate by using archiving with compression where '
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'appropriate. Supported values are: tar - tar archive, '
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'tgz - gzip tar archive (the default), '
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'tbz2 - bzip2 tar archive and txz - lzma tar archive. '
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'Currently in beta.'),
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action='store', dest='use_archiving',
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const='tgz')
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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_main'].add_argument(
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'-r', '--remote-out-dir',
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help='Directory to save cdist output in on the target host.',
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dest="remote_out_path")
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parser['config_main'].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=None)
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parser['config_main'].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=None)
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# Config
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parser['config_args'] = argparse.ArgumentParser(add_help=False)
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parser['config_args'].add_argument(
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'-A', '--all-tagged',
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help=('Use all hosts present in tags db. Currently in beta.'),
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action="store_true", dest="all_tagged_hosts", default=False)
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parser['config_args'].add_argument(
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'-a', '--all',
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help=('List hosts that have all specified tags, '
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'if -t/--tag is specified.'),
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action="store_true", dest="has_all_tags", default=False)
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parser['config_args'].add_argument(
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'host', nargs='*', help='Host(s) to operate on.')
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parser['config_args'].add_argument(
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'-f', '--file',
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help=('Read specified file for a list of additional hosts to '
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'operate on or if \'-\' is given, read stdin (one host per '
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'line). If no host or host file is specified then, by '
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'default, read hosts from stdin.'),
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dest='hostfile', required=False)
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parser['config_args'].add_argument(
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'-p', '--parallel', nargs='?', metavar='HOST_MAX',
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type=check_positive_int,
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help=('Operate on multiple hosts in parallel for specified maximum '
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'hosts at a time. Without argument CPU count is used by '
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'default.'),
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action='store', dest='parallel',
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const=multiprocessing.cpu_count())
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parser['config_args'].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_const', dest='parallel', const=0)
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parser['config_args'].add_argument(
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'-t', '--tag',
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help=('Host is specified by tag, not hostname/address; '
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'list all hosts that contain any of specified tags. '
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'Currently in beta.'),
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dest='tag', required=False, action="store_true", default=False)
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parser['config'] = parser['sub'].add_parser(
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'config', parents=[parser['loglevel'], parser['beta'],
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parser['common'],
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parser['config_main'],
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parser['inventory_common'],
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parser['config_args']])
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parser['config'].set_defaults(func=cdist.config.Config.commandline)
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# Install
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parser['install'] = parser['sub'].add_parser('install', add_help=False,
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parents=[parser['config']])
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parser['install'].set_defaults(func=cdist.install.Install.commandline)
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# Inventory
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parser['inventory'] = parser['sub'].add_parser(
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'inventory', parents=[parser['loglevel'], parser['beta'],
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parser['common'],
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parser['inventory_common']])
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parser['invsub'] = parser['inventory'].add_subparsers(
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title="Inventory commands", dest="subcommand")
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parser['add-host'] = parser['invsub'].add_parser(
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'add-host', parents=[parser['loglevel'], parser['beta'],
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parser['common'],
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parser['inventory_common']])
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parser['add-host'].add_argument(
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'host', nargs='*', help='Host(s) to add.')
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parser['add-host'].add_argument(
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'-f', '--file',
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help=('Read additional hosts to add 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 from stdin.'),
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dest='hostfile', required=False)
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parser['add-tag'] = parser['invsub'].add_parser(
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'add-tag', parents=[parser['loglevel'], parser['beta'],
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parser['common'],
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parser['inventory_common']])
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parser['add-tag'].add_argument(
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'host', nargs='*',
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help='List of host(s) for which tags are added.')
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parser['add-tag'].add_argument(
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'-f', '--file',
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help=('Read additional hosts to add tags 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 from stdin. If no tags/tagfile nor hosts/hostfile'
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' are specified then tags are read from stdin and are'
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' added to all hosts.'),
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dest='hostfile', required=False)
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parser['add-tag'].add_argument(
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'-T', '--tag-file',
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help=('Read additional tags to add from specified file '
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'or from stdin if \'-\' (each tag on separate line). '
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'If no tag or tag file is specified then, by default, '
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'read from stdin. If no tags/tagfile nor hosts/hostfile'
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' are specified then tags are read from stdin and are'
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' added to all hosts.'),
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dest='tagfile', required=False)
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parser['add-tag'].add_argument(
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'-t', '--taglist',
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help=("Tag list to be added for specified host(s), comma separated"
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" values."),
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dest="taglist", required=False)
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parser['del-host'] = parser['invsub'].add_parser(
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'del-host', parents=[parser['loglevel'], parser['beta'],
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parser['common'],
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parser['inventory_common']])
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parser['del-host'].add_argument(
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'host', nargs='*', help='Host(s) to delete.')
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parser['del-host'].add_argument(
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'-a', '--all', help=('Delete all hosts.'),
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dest='all', required=False, action="store_true", default=False)
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parser['del-host'].add_argument(
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'-f', '--file',
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help=('Read additional hosts to delete 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 from stdin.'),
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dest='hostfile', required=False)
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parser['del-tag'] = parser['invsub'].add_parser(
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'del-tag', parents=[parser['loglevel'], parser['beta'],
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parser['common'],
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parser['inventory_common']])
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parser['del-tag'].add_argument(
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'host', nargs='*',
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help='List of host(s) for which tags are deleted.')
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parser['del-tag'].add_argument(
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'-a', '--all',
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help=('Delete all tags for specified host(s).'),
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dest='all', required=False, action="store_true", default=False)
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parser['del-tag'].add_argument(
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'-f', '--file',
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help=('Read additional hosts to delete tags for from specified '
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'file 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 from stdin. If no tags/tagfile nor hosts/hostfile'
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' are specified then tags are read from stdin and are'
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' deleted from all hosts.'),
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dest='hostfile', required=False)
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parser['del-tag'].add_argument(
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'-T', '--tag-file',
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help=('Read additional tags from specified file '
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'or from stdin if \'-\' (each tag on separate line). '
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'If no tag or tag file is specified then, by default, '
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'read from stdin. If no tags/tagfile nor'
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' hosts/hostfile are specified then tags are read from'
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' stdin and are added to all hosts.'),
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dest='tagfile', required=False)
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parser['del-tag'].add_argument(
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'-t', '--taglist',
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help=("Tag list to be deleted for specified host(s), "
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"comma separated values."),
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dest="taglist", required=False)
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parser['list'] = parser['invsub'].add_parser(
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'list', parents=[parser['loglevel'], parser['beta'],
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parser['common'],
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parser['inventory_common']])
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parser['list'].add_argument(
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'host', nargs='*', help='Host(s) to list.')
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parser['list'].add_argument(
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'-a', '--all',
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help=('List hosts that have all specified tags, '
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'if -t/--tag is specified.'),
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action="store_true", dest="has_all_tags", default=False)
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parser['list'].add_argument(
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'-f', '--file',
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help=('Read additional hosts to list 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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'list all.'), dest='hostfile', required=False)
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parser['list'].add_argument(
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'-H', '--host-only', help=('Suppress tags listing.'),
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action="store_true", dest="list_only_host", default=False)
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parser['list'].add_argument(
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'-t', '--tag',
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help=('Host is specified by tag, not hostname/address; '
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'list all hosts that contain any of specified tags.'),
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action="store_true", default=False)
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parser['inventory'].set_defaults(
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func=cdist.inventory.Inventory.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 = EPILOG
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return parser
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def handle_loglevel(args):
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if args.quiet:
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args.verbose = _verbosity_level_off
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logging.root.setLevel(_verbosity_level[args.verbose])
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def parse_and_configure(argv, singleton=True):
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parser = get_parsers()
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parser_args = parser['main'].parse_args(argv)
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cfg = cdist.configuration.Configuration(parser_args, singleton=singleton)
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args = cfg.get_args()
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# Loglevels are handled globally in here
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handle_loglevel(args)
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log = logging.getLogger("cdist")
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log.verbose("version %s" % cdist.VERSION)
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log.trace('command line args: {}'.format(cfg.command_line_args))
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log.trace('configuration: {}'.format(cfg.get_config()))
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log.trace('configured args: {}'.format(args))
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check_beta(vars(args))
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return parser, cfg
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