/usr/share/pyshared/ClusterShell/CLI/Config.py is in clustershell 1.6-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 | #!/usr/bin/env python
#
# Copyright CEA/DAM/DIF (2010, 2011)
# Contributor: Stephane THIELL <stephane.thiell@cea.fr>
#
# This file is part of the ClusterShell library.
#
# This software is governed by the CeCILL-C license under French law and
# abiding by the rules of distribution of free software. You can use,
# modify and/ or redistribute the software under the terms of the CeCILL-C
# license as circulated by CEA, CNRS and INRIA at the following URL
# "http://www.cecill.info".
#
# As a counterpart to the access to the source code and rights to copy,
# modify and redistribute granted by the license, users are provided only
# with a limited warranty and the software's author, the holder of the
# economic rights, and the successive licensors have only limited
# liability.
#
# In this respect, the user's attention is drawn to the risks associated
# with loading, using, modifying and/or developing or reproducing the
# software by the user in light of its specific status of free software,
# that may mean that it is complicated to manipulate, and that also
# therefore means that it is reserved for developers and experienced
# professionals having in-depth computer knowledge. Users are therefore
# encouraged to load and test the software's suitability as regards their
# requirements in conditions enabling the security of their systems and/or
# data to be ensured and, more generally, to use and operate it in the
# same conditions as regards security.
#
# The fact that you are presently reading this means that you have had
# knowledge of the CeCILL-C license and that you accept its terms.
"""
CLI configuration classes
"""
import ConfigParser
import os
from ClusterShell.CLI.Display import VERB_QUIET, VERB_STD, \
VERB_VERB, VERB_DEBUG, THREE_CHOICES
class ClushConfigError(Exception):
"""Exception used by ClushConfig to report an error."""
def __init__(self, section, option, msg):
Exception.__init__(self)
self.section = section
self.option = option
self.msg = msg
def __str__(self):
return "(Config %s.%s): %s" % (self.section, self.option, self.msg)
class ClushConfig(ConfigParser.ConfigParser, object):
"""Config class for clush (specialized ConfigParser)"""
main_defaults = { "fanout" : "64",
"connect_timeout" : "30",
"command_timeout" : "0",
"history_size" : "100",
"color" : THREE_CHOICES[-1], # auto
"verbosity" : "%d" % VERB_STD,
"node_count" : "yes",
"fd_max" : "16384" }
def __init__(self, options, filename=None):
"""Initialize ClushConfig object from corresponding
OptionParser options."""
ConfigParser.ConfigParser.__init__(self)
# create Main section with default values
self.add_section("Main")
for key, value in ClushConfig.main_defaults.iteritems():
self.set("Main", key, value)
# config files override defaults values
if filename:
files = [filename]
else:
files = ['/etc/clustershell/clush.conf',
os.path.expanduser('~/.clush.conf')]
self.read(files)
# Apply command line overrides
if options.quiet:
self._set_main("verbosity", VERB_QUIET)
if options.verbose:
self._set_main("verbosity", VERB_VERB)
if options.debug:
self._set_main("verbosity", VERB_DEBUG)
if options.fanout:
self._set_main("fanout", options.fanout)
if options.user:
self._set_main("ssh_user", options.user)
if options.options:
self._set_main("ssh_options", options.options)
if options.connect_timeout:
self._set_main("connect_timeout", options.connect_timeout)
if options.command_timeout:
self._set_main("command_timeout", options.command_timeout)
if options.whencolor:
self._set_main("color", options.whencolor)
def _set_main(self, option, value):
"""Set given option/value pair in the Main section."""
self.set("Main", option, str(value))
def _getx(self, xtype, section, option):
"""Return a value of specified type for the named option."""
try:
return getattr(ConfigParser.ConfigParser, 'get%s' % xtype)(self, \
section, option)
except (ConfigParser.Error, TypeError, ValueError), exc:
raise ClushConfigError(section, option, exc)
def getboolean(self, section, option):
"""Return a boolean value for the named option."""
return self._getx('boolean', section, option)
def getfloat(self, section, option):
"""Return a float value for the named option."""
return self._getx('float', section, option)
def getint(self, section, option):
"""Return an integer value for the named option."""
return self._getx('int', section, option)
def _get_optional(self, section, option):
"""Utility method to get a value for the named option, but do
not raise an exception if the option doesn't exist."""
try:
return self.get(section, option)
except ConfigParser.Error:
pass
@property
def verbosity(self):
"""verbosity value as an integer"""
try:
return self.getint("Main", "verbosity")
except ClushConfigError:
return 0
@property
def fanout(self):
"""fanout value as an integer"""
return self.getint("Main", "fanout")
@property
def connect_timeout(self):
"""connect_timeout value as a float"""
return self.getfloat("Main", "connect_timeout")
@property
def command_timeout(self):
"""command_timeout value as a float"""
return self.getfloat("Main", "command_timeout")
@property
def ssh_user(self):
"""ssh_user value as a string (optional)"""
return self._get_optional("Main", "ssh_user")
@property
def ssh_path(self):
"""ssh_path value as a string (optional)"""
return self._get_optional("Main", "ssh_path")
@property
def ssh_options(self):
"""ssh_options value as a string (optional)"""
return self._get_optional("Main", "ssh_options")
@property
def color(self):
"""color value as a string in (never, always, auto)"""
whencolor = self._get_optional("Main", "color")
if whencolor not in THREE_CHOICES:
raise ClushConfigError("Main", "color", "choose from %s" % \
THREE_CHOICES)
return whencolor
@property
def node_count(self):
"""node_count value as a boolean"""
return self.getboolean("Main", "node_count")
@property
def fd_max(self):
"""max number of open files (soft rlimit)"""
return self.getint("Main", "fd_max")
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