422 lines
14 KiB
Python
422 lines
14 KiB
Python
|
# -*- coding: utf-8 -*-
|
||
|
|
#
|
||
|
|
# 2017 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 <http://www.gnu.org/licenses/>.
|
||
|
|
#
|
||
|
|
#
|
||
|
|
|
||
|
|
|
||
|
|
import configparser
|
||
|
|
import os
|
||
|
|
import cdist
|
||
|
|
import cdist.argparse
|
||
|
|
import re
|
||
|
|
import multiprocessing
|
||
|
|
|
||
|
|
|
||
|
|
class Singleton(type):
|
||
|
|
instance = None
|
||
|
|
|
||
|
|
def __call__(cls, *args, **kwargs):
|
||
|
|
if not cls.instance:
|
||
|
|
cls.instance = super(Singleton, cls).__call__(*args, **kwargs)
|
||
|
|
return cls.instance
|
||
|
|
|
||
|
|
|
||
|
|
_VERBOSITY_VALUES = (
|
||
|
|
'ERROR', 'WARNING', 'INFO', 'VERBOSE', 'DEBUG', 'TRACE', 'OFF',
|
||
|
|
)
|
||
|
|
_ARCHIVING_VALUES = (
|
||
|
|
'tar', 'tgz', 'tbz2', 'txz', 'none',
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
class OptionBase:
|
||
|
|
def __init__(self, name):
|
||
|
|
self.name = name
|
||
|
|
|
||
|
|
def converter(self, *args, **kwargs):
|
||
|
|
raise NotImplementedError('Subclass should implement this method')
|
||
|
|
|
||
|
|
def translate(self, val):
|
||
|
|
return val
|
||
|
|
|
||
|
|
def update_value(self, currval, newval, update_appends=False):
|
||
|
|
'''Update current option value currval with new option value newval.
|
||
|
|
If update_appends is True and if currval and newval are lists then
|
||
|
|
resulting list contains all values in currval plus all values in
|
||
|
|
newval. Otherwise, newval is returned.
|
||
|
|
'''
|
||
|
|
if (isinstance(currval, list) and isinstance(newval, list) and
|
||
|
|
update_appends):
|
||
|
|
rv = []
|
||
|
|
if currval:
|
||
|
|
rv.extend(currval)
|
||
|
|
if newval:
|
||
|
|
rv.extend(newval)
|
||
|
|
if not rv:
|
||
|
|
rv = None
|
||
|
|
return rv
|
||
|
|
else:
|
||
|
|
return newval
|
||
|
|
|
||
|
|
|
||
|
|
class StringOption(OptionBase):
|
||
|
|
def __init__(self, name):
|
||
|
|
super().__init__(name)
|
||
|
|
|
||
|
|
def converter(self):
|
||
|
|
def string_converter(val):
|
||
|
|
return self.translate(str(val))
|
||
|
|
return string_converter
|
||
|
|
|
||
|
|
def translate(self, val):
|
||
|
|
if val:
|
||
|
|
return val
|
||
|
|
else:
|
||
|
|
return None
|
||
|
|
|
||
|
|
|
||
|
|
class BooleanOption(OptionBase):
|
||
|
|
BOOLEAN_STATES = configparser.ConfigParser.BOOLEAN_STATES
|
||
|
|
|
||
|
|
def __init__(self, name):
|
||
|
|
super().__init__(name)
|
||
|
|
|
||
|
|
def converter(self):
|
||
|
|
def boolean_converter(val):
|
||
|
|
v = val.lower()
|
||
|
|
if v not in self.BOOLEAN_STATES:
|
||
|
|
raise ValueError('Invalid {} boolean value: {}'.format(
|
||
|
|
self.name, val))
|
||
|
|
return self.translate(v)
|
||
|
|
return boolean_converter
|
||
|
|
|
||
|
|
def translate(self, val):
|
||
|
|
return self.BOOLEAN_STATES[val]
|
||
|
|
|
||
|
|
|
||
|
|
class IntOption(OptionBase):
|
||
|
|
def __init__(self, name):
|
||
|
|
super().__init__(name)
|
||
|
|
|
||
|
|
def converter(self):
|
||
|
|
def int_converter(val):
|
||
|
|
return self.translate(int(val))
|
||
|
|
return int_converter
|
||
|
|
|
||
|
|
|
||
|
|
class LowerBoundIntOption(IntOption):
|
||
|
|
def __init__(self, name, lower_bound):
|
||
|
|
super().__init__(name)
|
||
|
|
self.lower_bound = lower_bound
|
||
|
|
|
||
|
|
def converter(self):
|
||
|
|
def lower_bound_converter(val):
|
||
|
|
converted = super(LowerBoundIntOption, self).converter()(val)
|
||
|
|
if converted < self.lower_bound:
|
||
|
|
raise ValueError("Invalid {} value: {} < {}".format(
|
||
|
|
self.name, val, self.lower_bound))
|
||
|
|
return converted
|
||
|
|
return lower_bound_converter
|
||
|
|
|
||
|
|
|
||
|
|
class SpecialCasesLowerBoundIntOption(LowerBoundIntOption):
|
||
|
|
def __init__(self, name, lower_bound, special_cases_mapping):
|
||
|
|
super().__init__(name, lower_bound)
|
||
|
|
self.special_cases_mapping = special_cases_mapping
|
||
|
|
|
||
|
|
def translate(self, val):
|
||
|
|
if val in self.special_cases_mapping:
|
||
|
|
return self.special_cases_mapping[val]
|
||
|
|
else:
|
||
|
|
return val
|
||
|
|
|
||
|
|
|
||
|
|
class JobsOption(SpecialCasesLowerBoundIntOption):
|
||
|
|
def __init__(self, name):
|
||
|
|
super().__init__(name, -1, {-1: multiprocessing.cpu_count()})
|
||
|
|
|
||
|
|
|
||
|
|
class SelectOption(OptionBase):
|
||
|
|
def __init__(self, name, valid_values):
|
||
|
|
super().__init__(name)
|
||
|
|
self.valid_values = valid_values
|
||
|
|
|
||
|
|
def converter(self):
|
||
|
|
def select_converter(val):
|
||
|
|
if val in self.valid_values:
|
||
|
|
return self.translate(val)
|
||
|
|
else:
|
||
|
|
raise ValueError("Invalid {} value: {}.".format(
|
||
|
|
self.name, val))
|
||
|
|
return select_converter
|
||
|
|
|
||
|
|
|
||
|
|
class VerbosityOption(SelectOption):
|
||
|
|
def __init__(self):
|
||
|
|
super().__init__('verbosity', _VERBOSITY_VALUES)
|
||
|
|
|
||
|
|
def translate(self, val):
|
||
|
|
name = 'VERBOSE_' + val
|
||
|
|
verbose = getattr(cdist.argparse, name)
|
||
|
|
return verbose
|
||
|
|
|
||
|
|
|
||
|
|
class DelimitedValuesOption(OptionBase):
|
||
|
|
def __init__(self, name, delimiter):
|
||
|
|
super().__init__(name)
|
||
|
|
self.delimiter = delimiter
|
||
|
|
|
||
|
|
def converter(self):
|
||
|
|
def delimited_values_converter(val):
|
||
|
|
vals = re.split(r'(?<!\\)' + self.delimiter, val)
|
||
|
|
vals = [x for x in vals if x]
|
||
|
|
return self.translate(vals)
|
||
|
|
return delimited_values_converter
|
||
|
|
|
||
|
|
def translate(self, val):
|
||
|
|
if val:
|
||
|
|
return val
|
||
|
|
else:
|
||
|
|
return None
|
||
|
|
|
||
|
|
|
||
|
|
class ConfDirOption(DelimitedValuesOption):
|
||
|
|
def __init__(self):
|
||
|
|
super().__init__('conf_dir', os.pathsep)
|
||
|
|
|
||
|
|
|
||
|
|
class ArchivingOption(SelectOption):
|
||
|
|
def __init__(self):
|
||
|
|
super().__init__('archiving', _ARCHIVING_VALUES)
|
||
|
|
|
||
|
|
def translate(self, val):
|
||
|
|
if val == 'none':
|
||
|
|
return None
|
||
|
|
else:
|
||
|
|
return val
|
||
|
|
|
||
|
|
|
||
|
|
_ARG_OPTION_MAPPING = {
|
||
|
|
'beta': 'beta',
|
||
|
|
'cache_path_pattern': 'cache_path_pattern',
|
||
|
|
'conf_dir': 'conf_dir',
|
||
|
|
'manifest': 'init_manifest',
|
||
|
|
'out_path': 'out_path',
|
||
|
|
'remote_out_path': 'remote_out_path',
|
||
|
|
'remote_copy': 'remote_copy',
|
||
|
|
'remote_exec': 'remote_exec',
|
||
|
|
'inventory_dir': 'inventory_dir',
|
||
|
|
'jobs': 'jobs',
|
||
|
|
'parallel': 'parallel',
|
||
|
|
'verbose': 'verbosity',
|
||
|
|
'use_archiving': 'archiving',
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
class Configuration(metaclass=Singleton):
|
||
|
|
_config_basename = 'cdist.cfg'
|
||
|
|
_global_config_file = os.path.join('/', 'etc', _config_basename, )
|
||
|
|
_local_config_file = os.path.join(os.path.expanduser('~'),
|
||
|
|
'.' + _config_basename, )
|
||
|
|
if (not (os.path.exists(_local_config_file) and
|
||
|
|
os.path.isfile(_local_config_file))):
|
||
|
|
_local_config_file = os.path.join(
|
||
|
|
os.environ.get('XDG_CONFIG_HOME',
|
||
|
|
os.path.expanduser('~/.config/cdist')),
|
||
|
|
_config_basename)
|
||
|
|
default_config_files = (_global_config_file, _local_config_file, )
|
||
|
|
ENV_VAR_CONFIG_FILE = 'CDIST_CONFIG_FILE'
|
||
|
|
|
||
|
|
VERBOSITY_VALUES = _VERBOSITY_VALUES
|
||
|
|
ARCHIVING_VALUES = _ARCHIVING_VALUES
|
||
|
|
|
||
|
|
CONFIG_FILE_OPTIONS = {
|
||
|
|
'GLOBAL': {
|
||
|
|
'beta': BooleanOption('beta'),
|
||
|
|
'local_shell': StringOption('local_shell'),
|
||
|
|
'remote_shell': StringOption('remote_shell'),
|
||
|
|
'cache_path_pattern': StringOption('cache_path_pattern'),
|
||
|
|
'conf_dir': ConfDirOption(),
|
||
|
|
'init_manifest': StringOption('init_manifest'),
|
||
|
|
'out_path': StringOption('out_path'),
|
||
|
|
'remote_out_path': StringOption('remote_out_path'),
|
||
|
|
'remote_copy': StringOption('remote_copy'),
|
||
|
|
'remote_exec': StringOption('remote_exec'),
|
||
|
|
'inventory_dir': StringOption('inventory_dir'),
|
||
|
|
'jobs': JobsOption('jobs'),
|
||
|
|
'parallel': JobsOption('parallel'),
|
||
|
|
'verbosity': VerbosityOption(),
|
||
|
|
'archiving': ArchivingOption(),
|
||
|
|
},
|
||
|
|
}
|
||
|
|
|
||
|
|
ENV_VAR_OPTION_MAPPING = {
|
||
|
|
'CDIST_BETA': 'beta',
|
||
|
|
'CDIST_PATH': 'conf_dir',
|
||
|
|
'CDIST_LOCAL_SHELL': 'local_shell',
|
||
|
|
'CDIST_REMOTE_SHELL': 'remote_shell',
|
||
|
|
'CDIST_REMOTE_EXEC': 'remote_exec',
|
||
|
|
'CDIST_REMOTE_COPY': 'remote_copy',
|
||
|
|
'CDIST_INVENTORY_DIR': 'inventory_dir',
|
||
|
|
'CDIST_CACHE_PATH_PATTERN': 'cache_path_pattern',
|
||
|
|
}
|
||
|
|
ENV_VAR_BOOLEAN_OPTIONS = ('CDIST_BETA', )
|
||
|
|
|
||
|
|
ARG_OPTION_MAPPING = _ARG_OPTION_MAPPING
|
||
|
|
ADJUST_ARG_OPTION_MAPPING = {
|
||
|
|
_ARG_OPTION_MAPPING[key]: key for key in _ARG_OPTION_MAPPING
|
||
|
|
}
|
||
|
|
|
||
|
|
def _convert_args(self, args):
|
||
|
|
if args:
|
||
|
|
if hasattr(args, '__dict__'):
|
||
|
|
return vars(args)
|
||
|
|
else:
|
||
|
|
raise ValueError(
|
||
|
|
'args parameter must be have __dict__ attribute')
|
||
|
|
else:
|
||
|
|
return None
|
||
|
|
|
||
|
|
def __init__(self, command_line_args, env=os.environ,
|
||
|
|
config_files=default_config_files):
|
||
|
|
self.command_line_args = command_line_args
|
||
|
|
self.args = self._convert_args(command_line_args)
|
||
|
|
self.env = env
|
||
|
|
self.config_files = config_files
|
||
|
|
self.config = self._get_config()
|
||
|
|
|
||
|
|
def get_config(self, section=None):
|
||
|
|
if section is None:
|
||
|
|
return self.config
|
||
|
|
if section in self.config:
|
||
|
|
return self.config[section]
|
||
|
|
raise ValueError('Unknown section: {}'.format(section))
|
||
|
|
|
||
|
|
def _get_args_name_value(self, arg_name, val):
|
||
|
|
if arg_name == 'verbosity' and val == 'OFF':
|
||
|
|
name = 'quiet'
|
||
|
|
rv = True
|
||
|
|
else:
|
||
|
|
name = arg_name
|
||
|
|
rv = val
|
||
|
|
return (name, rv)
|
||
|
|
|
||
|
|
def get_args(self, section='GLOBAL'):
|
||
|
|
args = self.command_line_args
|
||
|
|
cfg = self.get_config(section)
|
||
|
|
for option in self.ADJUST_ARG_OPTION_MAPPING:
|
||
|
|
if option in cfg:
|
||
|
|
arg_name = self.ADJUST_ARG_OPTION_MAPPING[option]
|
||
|
|
val = cfg[option]
|
||
|
|
name, val = self._get_args_name_value(arg_name, val)
|
||
|
|
setattr(args, name, val)
|
||
|
|
return args
|
||
|
|
|
||
|
|
def _read_config_file(self, files):
|
||
|
|
config_parser = configparser.ConfigParser()
|
||
|
|
config_parser.read(files)
|
||
|
|
d = dict()
|
||
|
|
for section in config_parser.sections():
|
||
|
|
if section not in self.CONFIG_FILE_OPTIONS:
|
||
|
|
raise ValueError("Invalid section: {}.".format(section))
|
||
|
|
if section not in d:
|
||
|
|
d[section] = dict()
|
||
|
|
|
||
|
|
for option in config_parser[section]:
|
||
|
|
if option not in self.CONFIG_FILE_OPTIONS[section]:
|
||
|
|
raise ValueError("Invalid option: {}.".format(option))
|
||
|
|
|
||
|
|
option_object = self.CONFIG_FILE_OPTIONS[section][option]
|
||
|
|
converter = option_object.converter()
|
||
|
|
val = config_parser[section][option]
|
||
|
|
newval = converter(val)
|
||
|
|
d[section][option] = newval
|
||
|
|
return d
|
||
|
|
|
||
|
|
def _read_env_var_config(self, env, section):
|
||
|
|
d = dict()
|
||
|
|
for option in self.ENV_VAR_OPTION_MAPPING:
|
||
|
|
if option in env:
|
||
|
|
dst_opt = self.ENV_VAR_OPTION_MAPPING[option]
|
||
|
|
if option in self.ENV_VAR_BOOLEAN_OPTIONS:
|
||
|
|
d[dst_opt] = True
|
||
|
|
else:
|
||
|
|
option_object = self.CONFIG_FILE_OPTIONS[section][dst_opt]
|
||
|
|
converter = option_object.converter()
|
||
|
|
val = env[option]
|
||
|
|
newval = converter(val)
|
||
|
|
d[dst_opt] = newval
|
||
|
|
return d
|
||
|
|
|
||
|
|
def _read_args_config(self, args):
|
||
|
|
d = dict()
|
||
|
|
for option in self.ARG_OPTION_MAPPING:
|
||
|
|
if option in args:
|
||
|
|
dst_opt = self.ARG_OPTION_MAPPING[option]
|
||
|
|
d[dst_opt] = args[option]
|
||
|
|
return d
|
||
|
|
|
||
|
|
def _update_config_dict(self, config, newconfig, update_appends=False):
|
||
|
|
for section in newconfig:
|
||
|
|
self._update_config_dict_section(
|
||
|
|
section, config, newconfig[section], update_appends)
|
||
|
|
|
||
|
|
def _update_config_dict_section(self, section, config, newconfig,
|
||
|
|
update_appends=False):
|
||
|
|
if section not in config:
|
||
|
|
config[section] = dict()
|
||
|
|
for option in newconfig:
|
||
|
|
newval = newconfig[option]
|
||
|
|
if option in config[section]:
|
||
|
|
currval = config[section][option]
|
||
|
|
else:
|
||
|
|
currval = None
|
||
|
|
option_object = self.CONFIG_FILE_OPTIONS[section][option]
|
||
|
|
config[section][option] = option_object.update_value(
|
||
|
|
currval, newval, update_appends)
|
||
|
|
|
||
|
|
def _get_config(self):
|
||
|
|
# global config file
|
||
|
|
# local config file
|
||
|
|
config = self._read_config_file(self.config_files)
|
||
|
|
# default empty config if needed
|
||
|
|
if not config:
|
||
|
|
config['GLOBAL'] = dict()
|
||
|
|
# environment variables
|
||
|
|
newconfig = self._read_env_var_config(self.env, 'GLOBAL')
|
||
|
|
for section in config:
|
||
|
|
self._update_config_dict_section(section, config, newconfig)
|
||
|
|
# config file in CDIST_CONFIG_FILE env var
|
||
|
|
config_file = os.environ.get(self.ENV_VAR_CONFIG_FILE, None)
|
||
|
|
if config_file:
|
||
|
|
newconfig = self._read_config_file(config_file)
|
||
|
|
self._update_config_dict(config, newconfig)
|
||
|
|
# command line config file
|
||
|
|
if (self.args and 'config_file' in self.args and
|
||
|
|
self.args['config_file']):
|
||
|
|
newconfig = self._read_config_file(self.args['config_file'])
|
||
|
|
self._update_config_dict(config, newconfig)
|
||
|
|
# command line
|
||
|
|
if self.args:
|
||
|
|
newconfig = self._read_args_config(self.args)
|
||
|
|
for section in config:
|
||
|
|
self._update_config_dict_section(section, config, newconfig,
|
||
|
|
update_appends=True)
|
||
|
|
return config
|