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#-*- coding: utf-8 -*-
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# Copyright 2010 Mir Calculate Ltd. http://www.calculate-linux.org
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import optparse
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import sys
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import re
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from cl_lang import lang
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tr = lang()
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tr.setLocalDomain('cl_lib')
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tr.setLanguage(sys.modules[__name__])
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optparse._ = _
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def make_option(shortOption=None,longOption=None,
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optVal=None, help=None, default=None,
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action=None, type=None, choices=None):
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"""Make option. Used for processing options parameter in opt __init__.
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shortOption short option
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longOption long option
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optVal argument name, if specified then
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option is store, else bool value
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help help string
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default default value of this option
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action another action (at example append, for creating list)
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type type of value
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choices choice values for type 'choice'
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Examples:
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Simple bool option:
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make_option(shortOption="q",help=_("quiet work mode"))
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Simple value option:
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make_option(longOption="file",help=_("log file"),optVal="LOGFILE",
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default="/var/log/test.log")
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Choice option:
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make_option(shortOption="color",help=_("color mode"), type="choice",
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choices=["auto","always","never"])
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Many option:
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make_option(longOption="set",help=_("set variable"),action="append",
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optVal="VAR")
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"""
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# create option by arguments
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args = []
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dest = None
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if not shortOption is None:
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args.append("-%s"%shortOption)
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dest = shortOption
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if not longOption is None:
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args.append("--%s"%longOption)
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if type == "choice":
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action = "store"
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else:
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if not optVal is None:
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if not action:
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action = "store"
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type = "string"
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else:
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if not action:
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action = "store_true"
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default = False
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type = None
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return optparse.make_option(*args, action=action, type=type,
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dest=dest, metavar=optVal,
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help=help, default=default,
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choices=choices)
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class opt(optparse.OptionParser):
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"""Class of options for calculate utilities
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Example:
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class new_utility(opt):
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def __init__(self):
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opt.__init__(self,
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package=__app__,
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version=__version__,
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description=_("Some description"),\
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option_list= [\
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#Simple bool option:
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{
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'shortOption':'q',
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'help':_("quiet work mode")
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},
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#Simple value option:
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{
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'longOption':"file",
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'help':_("log file"),
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'optVal':"LOGFILE",
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"default":"/var/log/test.log")
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},
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#Choice option:
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{
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'shortOption':"color",
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'help':_("color mode"),
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'type':"choice",
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'choices'=["auto","always","never"]
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},
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#Summary option:
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{
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'longOption':"set",
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'help':_("set variable"),
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'action':"append",
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'optVal'="VAR"
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}
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]
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)
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"""
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variable_control = \
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[{'longOption':"set",
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'optVal':"VAR=VALUE",
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'action':'append',
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'help':_("set value for variable (comma - delimeter)")
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},
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{'longOption':"vars",
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'optVal':"TYPE_VAR",
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'help':_("print variables") + " (TYPE_VAR - all: " + \
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_("full variables list") +")"
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}]
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color_control = \
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[
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{'longOption':"color",
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'optVal':"WHEN",
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'type':'choice',
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'choices':['never','always','auto'],
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'help':_("control whether color is used. WHEN may be") +\
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" 'never', 'always', "+ _("or") + " 'auto'"
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}]
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def __init__(self,
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usage=None,
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option_list=None,
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option_class=optparse.Option,
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version=None,
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conflict_handler="error",
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description=None,
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formatter=None,
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add_help_option=True,
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prog=None,
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epilog=None,
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package=None):
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self.package = package
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optparse.OptionParser.__init__(self,
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usage=usage,
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option_list=[make_option(**i) for i in option_list],
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option_class=option_class,
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version=version,
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conflict_handler=conflict_handler,
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description=description,
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formatter=formatter,
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add_help_option=add_help_option,
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prog=prog,
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epilog=epilog)
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self.formatter._long_opt_fmt = "%s %s"
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def get_usage(self):
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"""Replace standard help header"""
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if self.usage:
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return "%s %s\n\n%s"%(self.package,self.version,
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self.formatter.format_usage(self.expand_prog_name(self.usage)))
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else:
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return ""
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def format_help(self, formatter=None):
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"""Decode format help from utf-8 to unicode"""
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return \
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optparse.OptionParser.format_help(self,formatter).decode('UTF-8')
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def error(self, msg):
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"""error(msg : string)
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Print a usage message incorporating 'msg' to stderr and exit.
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If you override this in a subclass, it should not return -- it
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should either exit or raise an exception.
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"""
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self.print_usage(sys.stderr)
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self.exit(2, "%s: %s: %s\n" % (self.get_prog_name(), _("error"), msg))
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def checkVarSyntax(self,values):
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"""Check value of parameter set, was used for change vars"""
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reCheckSet = re.compile("^([a-z_]+=[^,]+)(,\s*[a-z_]+=[^,]+)*$")
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if values.set:
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for val in values.set:
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if not reCheckSet.match(val):
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self.error(_("wrong variable set %s")%val)
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