forked from ungleich-public/cdist
145 lines
5.1 KiB
Python
145 lines
5.1 KiB
Python
# -*- coding: utf-8 -*-
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#
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# 2011 Nico Schottelius (nico-cdist at schottelius.org)
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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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import argparse
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import logging
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import os
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import cdist
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log = logging.getLogger(__name__)
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def run(argv):
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"""Emulate type commands (i.e. __file and co)"""
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cdist_type = os.path.basename(argv[0])
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type_path = os.path.join(os.environ['__cdist_type_base_path'], cdist_type)
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param_path = os.path.join(type_path, "parameter")
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global_path = os.environ['__global']
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object_source = os.environ['__cdist_manifest']
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if '__debug' in os.environ:
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logging.root.setLevel(logging.DEBUG)
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else:
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logging.basicConfig(level=logging.INFO)
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parser = argparse.ArgumentParser(add_help=False)
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for parameter in cdist.file_to_list(os.path.join(param_path, "optional")):
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argument = "--" + parameter
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parser.add_argument(argument, action='store', required=False)
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for parameter in cdist.file_to_list(os.path.join(param_path, "required")):
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argument = "--" + parameter
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parser.add_argument(argument, action='store', required=True)
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# If not singleton support one positional parameter
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if not os.path.isfile(os.path.join(type_path, "singleton")):
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parser.add_argument("object_id", nargs=1)
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# And finally verify parameter
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args = parser.parse_args(argv[1:])
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# Setup object_id
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if os.path.isfile(os.path.join(type_path, "singleton")):
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object_id = "singleton"
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else:
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object_id = args.object_id[0]
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del args.object_id
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# FIXME: / hardcoded - better portable solution available?
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if object_id[0] == '/':
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object_id = object_id[1:]
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# Prefix output by object_self
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logformat = '%(levelname)s: ' + cdist_type + '/' + object_id + ': %(message)s'
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logging.basicConfig(format=logformat)
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# FIXME: verify object id
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log.debug(args)
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object_path = os.path.join(global_path, "object", cdist_type,
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object_id, cdist.DOT_CDIST)
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log.debug("Object output dir = " + object_path)
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param_out_dir = os.path.join(object_path, "parameter")
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object_source_file = os.path.join(object_path, "source")
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if os.path.exists(object_path):
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object_exists = True
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old_object_source_fd = open(object_source_file, "r")
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old_object_source = old_object_source_fd.readlines()
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old_object_source_fd.close()
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else:
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object_exists = False
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try:
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os.makedirs(object_path, exist_ok=False)
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log.debug("Object param dir = " + param_out_dir)
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os.makedirs(param_out_dir, exist_ok=False)
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except OSError as error:
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raise cdist.Error(param_out_dir + ": " + error.args[1])
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# Record parameter
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params = vars(args)
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for param in params:
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value = getattr(args, param)
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if value:
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file = os.path.join(param_out_dir, param)
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log.debug(file + "<-" + param + " = " + value)
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# Already exists, verify all parameter are the same
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if object_exists:
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if not os.path.isfile(file):
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raise cdist.Error("New parameter \"" +
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param + "\" specified, aborting\n" +
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"Source = " +
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" ".join(old_object_source)
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+ " new =" + object_source)
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else:
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param_fd = open(file, "r")
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value_old = param_fd.readlines()
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param_fd.close()
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if(value_old[0] != value):
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raise cdist.Error("Parameter\"" + param +
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"\" differs: " + " ".join(value_old) + " vs. " +
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value +
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"\nSource = " + " ".join(old_object_source)
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+ " new = " + object_source)
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else:
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param_fd = open(file, "w")
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param_fd.writelines(value)
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param_fd.close()
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# Record requirements
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if "require" in os.environ:
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requirements = os.environ['require']
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log.debug(object_id + ":Writing requirements: " + requirements)
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require_fd = open(os.path.join(object_path, "require"), "a")
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require_fd.write(requirements.replace(" ","\n"))
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require_fd.close()
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# Record / Append source
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source_fd = open(os.path.join(object_path, "source"), "a")
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source_fd.writelines(object_source)
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source_fd.close()
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log.debug("Finished " + cdist_type + "/" + object_id + repr(params))
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