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