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# Copyright (C) 2004, 2005, 2006, 2007 Canonical Ltd
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# This program 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 2 of the License, or
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# (at your option) any later version.
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# This program 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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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# TODO: For things like --diff-prefix, we want a way to customize the display
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# of the option argument.
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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from bzrlib.trace import warning
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def _parse_revision_str(revstr):
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"""This handles a revision string -> revno.
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This always returns a list. The list will have one element for
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each revision specifier supplied.
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>>> _parse_revision_str('234')
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[<RevisionSpec_revno 234>]
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>>> _parse_revision_str('234..567')
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[<RevisionSpec_revno 234>, <RevisionSpec_revno 567>]
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>>> _parse_revision_str('..')
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[<RevisionSpec None>, <RevisionSpec None>]
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>>> _parse_revision_str('..234')
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[<RevisionSpec None>, <RevisionSpec_revno 234>]
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>>> _parse_revision_str('234..')
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[<RevisionSpec_revno 234>, <RevisionSpec None>]
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>>> _parse_revision_str('234..456..789') # Maybe this should be an error
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[<RevisionSpec_revno 234>, <RevisionSpec_revno 456>, <RevisionSpec_revno 789>]
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>>> _parse_revision_str('234....789') #Error ?
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[<RevisionSpec_revno 234>, <RevisionSpec None>, <RevisionSpec_revno 789>]
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>>> _parse_revision_str('revid:test@other.com-234234')
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[<RevisionSpec_revid revid:test@other.com-234234>]
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>>> _parse_revision_str('revid:test@other.com-234234..revid:test@other.com-234235')
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[<RevisionSpec_revid revid:test@other.com-234234>, <RevisionSpec_revid revid:test@other.com-234235>]
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>>> _parse_revision_str('revid:test@other.com-234234..23')
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[<RevisionSpec_revid revid:test@other.com-234234>, <RevisionSpec_revno 23>]
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>>> _parse_revision_str('date:2005-04-12')
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[<RevisionSpec_date date:2005-04-12>]
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>>> _parse_revision_str('date:2005-04-12 12:24:33')
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[<RevisionSpec_date date:2005-04-12 12:24:33>]
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>>> _parse_revision_str('date:2005-04-12T12:24:33')
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[<RevisionSpec_date date:2005-04-12T12:24:33>]
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>>> _parse_revision_str('date:2005-04-12,12:24:33')
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[<RevisionSpec_date date:2005-04-12,12:24:33>]
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>>> _parse_revision_str('-5..23')
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[<RevisionSpec_revno -5>, <RevisionSpec_revno 23>]
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>>> _parse_revision_str('-5')
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[<RevisionSpec_revno -5>]
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>>> _parse_revision_str('123a')
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Traceback (most recent call last):
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NoSuchRevisionSpec: No namespace registered for string: '123a'
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>>> _parse_revision_str('abc')
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Traceback (most recent call last):
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NoSuchRevisionSpec: No namespace registered for string: 'abc'
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>>> _parse_revision_str('branch:../branch2')
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[<RevisionSpec_branch branch:../branch2>]
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>>> _parse_revision_str('branch:../../branch2')
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[<RevisionSpec_branch branch:../../branch2>]
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>>> _parse_revision_str('branch:../../branch2..23')
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[<RevisionSpec_branch branch:../../branch2>, <RevisionSpec_revno 23>]
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# TODO: Maybe move this into revisionspec.py
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# split on the first .. that is not followed by a / ?
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sep = re.compile("\\.\\.(?!/)")
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for x in sep.split(revstr):
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revs.append(revisionspec.RevisionSpec.from_string(x or None))
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def _parse_merge_type(typestring):
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return get_merge_type(typestring)
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def get_merge_type(typestring):
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"""Attempt to find the merge class/factory associated with a string."""
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from merge import merge_types
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return merge_types[typestring][0]
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templ = '%s%%7s: %%s' % (' '*12)
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lines = [templ % (f[0], f[1][1]) for f in merge_types.iteritems()]
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type_list = '\n'.join(lines)
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msg = "No known merge type %s. Supported types are:\n%s" %\
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(typestring, type_list)
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raise errors.BzrCommandError(msg)
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class Option(object):
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"""Description of a command line option
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:ivar _short_name: If this option has a single-letter name, this is it.
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# TODO: Some way to show in help a description of the option argument
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def __init__(self, name, help='', type=None, argname=None,
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"""Make a new command option.
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name -- regular name of the command, used in the double-dash
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form and also as the parameter to the command's run()
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help -- help message displayed in command help
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type -- function called to parse the option argument, or
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None (default) if this option doesn't take an argument.
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argname -- name of option argument, if any
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self._short_name = short_name
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assert argname is None
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elif argname is None:
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self.argname = argname
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def short_name(self):
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return self._short_name
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def set_short_name(self, short_name):
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self._short_name = short_name
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def get_negation_name(self):
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if self.name.startswith('no-'):
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return 'no-' + self.name
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def add_option(self, parser, short_name):
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"""Add this option to an Optparse parser"""
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option_strings = ['--%s' % self.name]
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if short_name is not None:
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option_strings.append('-%s' % short_name)
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parser.add_option(action='store_true', dest=self.name,
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default=OptionParser.DEFAULT_VALUE,
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negation_strings = ['--%s' % self.get_negation_name()]
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parser.add_option(action='store_false', dest=self.name,
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help=optparse.SUPPRESS_HELP, *negation_strings)
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parser.add_option(action='callback',
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callback=self._optparse_callback,
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type='string', metavar=self.argname.upper(),
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default=OptionParser.DEFAULT_VALUE,
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def _optparse_callback(self, option, opt, value, parser):
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setattr(parser.values, self.name, self.type(value))
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def iter_switches(self):
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"""Iterate through the list of switches provided by the option
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:return: an iterator of (name, short_name, argname, help)
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argname = self.argname
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if argname is not None:
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argname = argname.upper()
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yield self.name, self.short_name(), argname, self.help
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class ListOption(Option):
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"""Option used to provide a list of values.
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On the command line, arguments are specified by a repeated use of the
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option. '-' is a special argument that resets the list. For example,
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sets the value of the 'foo' option to ['a', 'b'], and
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--foo=a --foo=b --foo=- --foo=c
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sets the value of the 'foo' option to ['c'].
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def add_option(self, parser, short_name):
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"""Add this option to an Optparse parser."""
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option_strings = ['--%s' % self.name]
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if short_name is not None:
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option_strings.append('-%s' % short_name)
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parser.add_option(action='callback',
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callback=self._optparse_callback,
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type='string', metavar=self.argname.upper(),
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help=self.help, default=[],
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def _optparse_callback(self, option, opt, value, parser):
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values = getattr(parser.values, self.name)
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values.append(self.type(value))
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class RegistryOption(Option):
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"""Option based on a registry
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The values for the options correspond to entries in the registry. Input
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must be a registry key. After validation, it is converted into an object
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using Registry.get or a caller-provided converter.
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def validate_value(self, value):
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"""Validate a value name"""
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if value not in self.registry:
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raise errors.BadOptionValue(self.name, value)
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def convert(self, value):
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"""Convert a value name into an output type"""
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self.validate_value(value)
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if self.converter is None:
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return self.registry.get(value)
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return self.converter(value)
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def __init__(self, name, help, registry, converter=None,
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value_switches=False, title=None, enum_switch=True):
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:param name: The option name.
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:param help: Help for the option.
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:param registry: A Registry containing the values
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:param converter: Callable to invoke with the value name to produce
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the value. If not supplied, self.registry.get is used.
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:param value_switches: If true, each possible value is assigned its
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own switch. For example, instead of '--format knit',
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'--knit' can be used interchangeably.
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:param enum_switch: If true, a switch is provided with the option name,
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Option.__init__(self, name, help, type=self.convert)
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self.registry = registry
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self.converter = converter
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self.value_switches = value_switches
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self.enum_switch = enum_switch
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if self.title is None:
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def from_kwargs(name_, help=None, title=None, value_switches=False,
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enum_switch=True, **kwargs):
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"""Convenience method to generate string-map registry options
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name, help, value_switches and enum_switch are passed to the
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RegistryOption constructor. Any other keyword arguments are treated
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as values for the option, and they value is treated as the help.
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reg = registry.Registry()
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for name, help in kwargs.iteritems():
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name = name.replace('_', '-')
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reg.register(name, name, help=help)
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return RegistryOption(name_, help, reg, title=title,
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value_switches=value_switches, enum_switch=enum_switch)
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def add_option(self, parser, short_name):
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"""Add this option to an Optparse parser"""
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if self.value_switches:
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parser = parser.add_option_group(self.title)
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Option.add_option(self, parser, short_name)
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if self.value_switches:
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for key in self.registry.keys():
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option_strings = ['--%s' % key]
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if getattr(self.registry.get_info(key), 'hidden', False):
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help = optparse.SUPPRESS_HELP
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help = self.registry.get_help(key)
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parser.add_option(action='callback',
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callback=self._optparse_value_callback(key),
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def _optparse_value_callback(self, cb_value):
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def cb(option, opt, value, parser):
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setattr(parser.values, self.name, self.type(cb_value))
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def iter_switches(self):
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"""Iterate through the list of switches provided by the option
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:return: an iterator of (name, short_name, argname, help)
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for value in Option.iter_switches(self):
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if self.value_switches:
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for key in sorted(self.registry.keys()):
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yield key, None, None, self.registry.get_help(key)
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class OptionParser(optparse.OptionParser):
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"""OptionParser that raises exceptions instead of exiting"""
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DEFAULT_VALUE = object()
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def error(self, message):
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raise errors.BzrCommandError(message)
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def get_optparser(options):
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"""Generate an optparse parser for bzrlib-style options"""
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parser = OptionParser()
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parser.remove_option('--help')
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for option in options.itervalues():
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option.add_option(parser, option.short_name())
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def _global_option(name, **kwargs):
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"""Register o as a global option."""
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Option.OPTIONS[name] = Option(name, **kwargs)
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def _global_registry_option(name, help, registry, **kwargs):
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Option.OPTIONS[name] = RegistryOption(name, help, registry, **kwargs)
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class MergeTypeRegistry(registry.Registry):
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_merge_type_registry = MergeTypeRegistry()
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_merge_type_registry.register_lazy('merge3', 'bzrlib.merge', 'Merge3Merger',
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"Native diff3-style merge")
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_merge_type_registry.register_lazy('diff3', 'bzrlib.merge', 'Diff3Merger',
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"Merge using external diff3")
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_merge_type_registry.register_lazy('weave', 'bzrlib.merge', 'WeaveMerger',
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_global_option('overwrite', help='Ignore differences between branches and '
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'overwrite unconditionally.')
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_global_option('revision',
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type=_parse_revision_str,
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help='See \'help revisionspec\' for details.')
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_global_option('show-ids',
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help='Show internal object ids.')
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_global_option('verbose',
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help='Display more information.',
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_global_registry_option('log-format', "Use specified log format.",
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log.log_formatter_registry, value_switches=True,
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_global_registry_option('merge-type', 'Select a particular merge algorithm.',
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_merge_type_registry, value_switches=True,
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title='Merge algorithm')
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_global_option('remember', help='Remember the specified location as a'
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_global_option('reprocess', help='Reprocess to reduce spurious conflicts.')
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_help_option = Option('help',
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help='Show help message.',
added
removed
bzrlib/option.py
