6b2bb53fd6
While we're at it, make it possible to run main.py in a somewhat standalone mode again so that we can test things without compiling.
143 lines
5 KiB
Python
143 lines
5 KiB
Python
# Copyright (c) 2005 The Regents of The University of Michigan
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Nathan Binkert
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import optparse
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import sys
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from optparse import *
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class nodefault(object): pass
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class splitter(object):
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def __init__(self, split):
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self.split = split
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def __call__(self, option, opt_str, value, parser):
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values = value.split(self.split)
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dest = getattr(parser.values, option.dest)
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if dest is None:
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setattr(parser.values, option.dest, values)
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else:
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dest.extend(values)
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class OptionParser(dict):
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def __init__(self, *args, **kwargs):
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kwargs.setdefault('formatter', optparse.TitledHelpFormatter())
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self._optparse = optparse.OptionParser(*args, **kwargs)
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self._optparse.disable_interspersed_args()
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self._allopts = {}
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# current option group
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self._group = self._optparse
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def set_defaults(self, *args, **kwargs):
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return self._optparse.set_defaults(*args, **kwargs)
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def set_group(self, *args, **kwargs):
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'''set the current option group'''
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if not args and not kwargs:
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self._group = self._optparse
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else:
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self._group = self._optparse.add_option_group(*args, **kwargs)
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def add_option(self, *args, **kwargs):
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'''add an option to the current option group, or global none set'''
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# if action=split, but allows the option arguments
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# themselves to be lists separated by the split variable'''
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if kwargs.get('action', None) == 'append' and 'split' in kwargs:
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split = kwargs.pop('split')
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kwargs['default'] = []
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kwargs['type'] = 'string'
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kwargs['action'] = 'callback'
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kwargs['callback'] = splitter(split)
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option = self._group.add_option(*args, **kwargs)
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dest = option.dest
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if dest not in self._allopts:
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self._allopts[dest] = option
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return option
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def bool_option(self, name, default, help):
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'''add a boolean option called --name and --no-name.
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Display help depending on which is the default'''
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tname = '--%s' % name
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fname = '--no-%s' % name
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dest = name.replace('-', '_')
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if default:
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thelp = optparse.SUPPRESS_HELP
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fhelp = help
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else:
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thelp = help
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fhelp = optparse.SUPPRESS_HELP
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topt = self.add_option(tname, action="store_true", default=default,
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help=thelp)
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fopt = self.add_option(fname, action="store_false", dest=dest,
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help=fhelp)
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return topt,fopt
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def __getattr__(self, attr):
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if attr.startswith('_'):
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return super(OptionParser, self).__getattribute__(attr)
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if attr in self:
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return self[attr]
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return super(OptionParser, self).__getattribute__(attr)
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def __setattr__(self, attr, value):
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if attr.startswith('_'):
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super(OptionParser, self).__setattr__(attr, value)
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elif attr in self._allopts:
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defaults = { attr : value }
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self.set_defaults(**defaults)
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if attr in self:
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self[attr] = value
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else:
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super(OptionParser, self).__setattr__(attr, value)
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def parse_args(self):
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opts,args = self._optparse.parse_args()
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for key,val in opts.__dict__.iteritems():
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if val is not None or key not in self:
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self[key] = val
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return args
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def usage(self, exitcode=None):
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self._optparse.print_help()
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if exitcode is not None:
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sys.exit(exitcode)
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