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# Copyright (C) 2006, 2008, 2009 Canonical Ltd
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# Copyright (C) 2004, 2005 by 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# TODO: probably should say which arguments are candidates for glob
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# expansion on windows and do that at the command level.
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# TODO: Define arguments by objects, rather than just using names.
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# Those objects can specify the expected type of the argument, which
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# would help with validation and shell completion. They could also provide
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# help/explanation for that argument in a structured way.
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# TODO: Specific "examples" property on commands for consistent formatting.
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# TODO: "--profile=cum", to change sort order. Is there any value in leaving
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# the profile output behind so it can be interactively examined?
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# TODO: Help messages for options.
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# TODO: Define arguments by objects, rather than just using names.
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# Those objects can specify the expected type of the argument, which
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# would help with validation and shell completion.
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# TODO: Help messages for options.
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# TODO: Define arguments by objects, rather than just using names.
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# Those objects can specify the expected type of the argument, which
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# would help with validation and shell completion.
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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from warnings import warn
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from inspect import getdoc
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from bzrlib.hooks import HookPoint, Hooks
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# Compatibility - Option used to be in commands.
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from bzrlib.option import Option
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from bzrlib import registry
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from bzrlib.symbol_versioning import (
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suppress_deprecation_warnings,
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class CommandInfo(object):
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"""Information about a command."""
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def __init__(self, aliases):
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"""The list of aliases for the command."""
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self.aliases = aliases
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def from_command(klass, command):
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"""Factory to construct a CommandInfo from a command."""
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return klass(command.aliases)
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class CommandRegistry(registry.Registry):
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def _get_name(command_name):
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if command_name.startswith("cmd_"):
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return _unsquish_command_name(command_name)
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def register(self, cmd, decorate=False):
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"""Utility function to help register a command
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:param cmd: Command subclass to register
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:param decorate: If true, allow overriding an existing command
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of the same name; the old command is returned by this function.
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Otherwise it is an error to try to override an existing command.
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k_unsquished = self._get_name(k)
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previous = self.get(k_unsquished)
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previous = _builtin_commands().get(k_unsquished)
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info = CommandInfo.from_command(cmd)
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registry.Registry.register(self, k_unsquished, cmd,
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override_existing=decorate, info=info)
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trace.warning('Two plugins defined the same command: %r' % k)
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trace.warning('Not loading the one in %r' %
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sys.modules[cmd.__module__])
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trace.warning('Previously this command was registered from %r' %
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sys.modules[previous.__module__])
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def register_lazy(self, command_name, aliases, module_name):
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"""Register a command without loading its module.
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:param command_name: The primary name of the command.
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:param aliases: A list of aliases for the command.
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:module_name: The module that the command lives in.
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key = self._get_name(command_name)
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registry.Registry.register_lazy(self, key, module_name, command_name,
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info=CommandInfo(aliases))
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plugin_cmds = CommandRegistry()
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def register_command(cmd, decorate=False):
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from bzrlib.trace import mutter, note, log_error, warning
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from bzrlib.errors import BzrError, BzrCheckError, BzrCommandError, NotBranchError
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from bzrlib.branch import find_branch
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from bzrlib import BZRDIR
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def register_command(cmd):
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"Utility function to help register a command"
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global plugin_cmds
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return plugin_cmds.register(cmd, decorate)
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if k.startswith("cmd_"):
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k_unsquished = _unsquish_command_name(k)
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if not plugin_cmds.has_key(k_unsquished):
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plugin_cmds[k_unsquished] = cmd
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mutter('registered plugin command %s', k_unsquished)
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log_error('Two plugins defined the same command: %r' % k)
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log_error('Not loading the one in %r' % sys.modules[cmd.__module__])
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def _squish_command_name(cmd):
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def _unsquish_command_name(cmd):
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assert cmd.startswith("cmd_")
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return cmd[4:].replace('_','-')
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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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It supports integers directly, but everything else it
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defers for passing to Branch.get_revision_info()
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>>> _parse_revision_str('234')
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>>> _parse_revision_str('234..567')
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>>> _parse_revision_str('..')
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>>> _parse_revision_str('..234')
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>>> _parse_revision_str('234..')
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>>> _parse_revision_str('234..456..789') # Maybe this should be an error
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>>> _parse_revision_str('234....789') # Error?
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>>> _parse_revision_str('revid:test@other.com-234234')
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['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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['revid:test@other.com-234234', 'revid:test@other.com-234235']
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>>> _parse_revision_str('revid:test@other.com-234234..23')
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['revid:test@other.com-234234', 23]
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>>> _parse_revision_str('date:2005-04-12')
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>>> _parse_revision_str('date:2005-04-12 12:24:33')
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['date:2005-04-12 12:24:33']
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>>> _parse_revision_str('date:2005-04-12T12:24:33')
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['date:2005-04-12T12:24:33']
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>>> _parse_revision_str('date:2005-04-12,12:24:33')
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['date:2005-04-12,12:24:33']
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>>> _parse_revision_str('-5..23')
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>>> _parse_revision_str('-5')
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>>> _parse_revision_str('123a')
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>>> _parse_revision_str('abc')
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old_format_re = re.compile('\d*:\d*')
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m = old_format_re.match(revstr)
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warning('Colon separator for revision numbers is deprecated.'
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for rev in revstr.split(':'):
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revs.append(int(rev))
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for x in revstr.split('..'):
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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 BzrCommandError(msg)
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def _builtin_commands():
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import bzrlib.builtins
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return _scan_module_for_commands(bzrlib.builtins)
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def _scan_module_for_commands(module):
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for name, obj in module.__dict__.iteritems():
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builtins = bzrlib.builtins.__dict__
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for name in builtins:
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if name.startswith("cmd_"):
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real_name = _unsquish_command_name(name)
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real_name = _unsquish_command_name(name)
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r[real_name] = builtins[name]
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def _list_bzr_commands(names):
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"""Find commands from bzr's core and plugins."""
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# to eliminate duplicates
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names.update(builtin_command_names())
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names.update(plugin_command_names())
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def all_command_names():
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"""Return a set of all command names."""
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for hook in Command.hooks['list_commands']:
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raise AssertionError(
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'hook %s returned None' % Command.hooks.get_hook_name(hook))
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def builtin_command_names():
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"""Return list of builtin command names.
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Use of all_command_names() is encouraged rather than builtin_command_names
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and/or plugin_command_names.
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"""Return list of builtin command names."""
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return _builtin_commands().keys()
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def plugin_command_names():
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"""Returns command names from commands registered by plugins."""
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return plugin_cmds.keys()
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@deprecated_function(deprecated_in((1, 17, 0)))
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def get_all_cmds(plugins_override=False):
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"""Return canonical name and class for most commands.
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NB: This does not return all commands since the introduction of
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command hooks, and returning the class is not sufficient to
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get correctly setup commands, which is why it is deprecated.
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Use 'all_command_names' + 'get_cmd_object' instead.
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def _get_cmd_dict(plugins_override=True):
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"""Return name->class mapping for all commands."""
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d = _builtin_commands()
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if plugins_override:
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d.update(plugin_cmds.iteritems())
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for k, v in d.iteritems():
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d.update(plugin_cmds)
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def get_all_cmds(plugins_override=True):
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"""Return canonical name and class for all registered commands."""
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for k, v in _get_cmd_dict(plugins_override=plugins_override).iteritems():
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def get_cmd_object(cmd_name, plugins_override=True):
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"""Return the command object for a command.
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"""Return the canonical name and command class for a command.
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If true, plugin commands can override builtins.
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return _get_cmd_object(cmd_name, plugins_override)
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raise errors.BzrCommandError('unknown command "%s"' % cmd_name)
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def _get_cmd_object(cmd_name, plugins_override=True):
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"""Get a command object.
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:param cmd_name: The name of the command.
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:param plugins_override: Allow plugins to override builtins.
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:return: A Command object instance
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:raises KeyError: If no command is found.
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# We want only 'ascii' command names, but the user may have typed
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# in a Unicode name. In that case, they should just get a
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# 'command not found' error later.
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# In the future, we may actually support Unicode command names.
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for hook in Command.hooks['get_command']:
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cmd = hook(cmd, cmd_name)
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if cmd is not None and not plugins_override and not cmd.plugin_name():
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# We've found a non-plugin command, don't permit it to be
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for hook in Command.hooks['get_missing_command']:
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# Allow plugins to extend commands
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for hook in Command.hooks['extend_command']:
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def _try_plugin_provider(cmd_name):
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"""Probe for a plugin provider having cmd_name."""
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plugin_metadata, provider = probe_for_provider(cmd_name)
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raise errors.CommandAvailableInPlugin(cmd_name,
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plugin_metadata, provider)
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except errors.NoPluginAvailable:
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def probe_for_provider(cmd_name):
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"""Look for a provider for cmd_name.
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:param cmd_name: The command name.
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:return: plugin_metadata, provider for getting cmd_name.
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:raises NoPluginAvailable: When no provider can supply the plugin.
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# look for providers that provide this command but aren't installed
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for provider in command_providers_registry:
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return provider.plugin_for_command(cmd_name), provider
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except errors.NoPluginAvailable:
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raise errors.NoPluginAvailable(cmd_name)
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def _get_bzr_command(cmd_or_None, cmd_name):
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"""Get a command from bzr's core."""
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cmds = _builtin_commands()
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from bzrlib.externalcommand import ExternalCommand
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cmd_name = str(cmd_name) # not unicode
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# first look up this command under the specified name
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cmds = _get_cmd_dict(plugins_override=plugins_override)
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return cmds[cmd_name]()
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# look for any command which claims this as an alias
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for real_cmd_name, cmd_class in cmds.iteritems():
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if cmd_name in cmd_class.aliases:
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return cmd_class()
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def _get_external_command(cmd_or_None, cmd_name):
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"""Lookup a command that is a shell script."""
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# Only do external command lookups when no command is found so far.
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if cmd_or_None is not None:
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from bzrlib.externalcommand import ExternalCommand
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cmd_obj = ExternalCommand.find_command(cmd_name)
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def _get_plugin_command(cmd_or_None, cmd_name):
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"""Get a command from bzr's plugins."""
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return plugin_cmds.get(cmd_name)()
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for key in plugin_cmds.keys():
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info = plugin_cmds.get_info(key)
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if cmd_name in info.aliases:
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return plugin_cmds.get(key)()
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raise BzrCommandError("unknown command %r" % cmd_name)
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class Command(object):
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List of argument forms, marked with whether they are optional,
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['to_location', 'from_branch?', 'file*']
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'to_location' is required
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'from_branch' is optional
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'file' can be specified 0 or more times
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List of options that may be given for this command. These can
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be either strings, referring to globally-defined options,
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or option objects. Retrieve through options().
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List of options that may be given for this command.
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If true, this command isn't advertised. This is typically
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for commands intended for expert users.
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Command objects will get a 'outf' attribute, which has been
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setup to properly handle encoding of unicode strings.
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encoding_type determines what will happen when characters cannot
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strict - abort if we cannot decode
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replace - put in a bogus character (typically '?')
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exact - do not encode sys.stdout
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NOTE: by default on Windows, sys.stdout is opened as a text
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stream, therefore LF line-endings are converted to CRLF.
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When a command uses encoding_type = 'exact', then
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sys.stdout is forced to be a binary stream, and line-endings
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:cvar hooks: An instance of CommandHooks.
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takes_options = []
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encoding_type = 'strict'
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def __init__(self):
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"""Construct an instance of this command."""
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if self.__doc__ == Command.__doc__:
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warn("No help message set for %r" % self)
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# List of standard options directly supported
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self.supported_std_options = []
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self._operation = cleanup.OperationWithCleanups(self.run)
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def add_cleanup(self, cleanup_func, *args, **kwargs):
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"""Register a function to call after self.run returns or raises.
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Functions will be called in LIFO order.
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self._operation.add_cleanup(cleanup_func, *args, **kwargs)
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def cleanup_now(self):
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"""Execute and empty pending cleanup functions immediately.
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After cleanup_now all registered cleanups are forgotten. add_cleanup
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may be called again after cleanup_now; these cleanups will be called
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after self.run returns or raises (or when cleanup_now is next called).
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This is useful for releasing expensive or contentious resources (such
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as write locks) before doing further work that does not require those
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resources (such as writing results to self.outf).
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self._operation.cleanup_now()
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@deprecated_method(deprecated_in((2, 1, 0)))
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def _maybe_expand_globs(self, file_list):
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"""Glob expand file_list if the platform does not do that itself.
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Not used anymore, now that the bzr command-line parser globs on
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:return: A possibly empty list of unicode paths.
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Introduced in bzrlib 0.18.
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"""Return single-line grammar for this command.
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Only describes arguments, not options.
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s = 'bzr ' + self.name() + ' '
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for aname in self.takes_args:
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aname = aname.upper()
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if aname[-1] in ['$', '+']:
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aname = aname[:-1] + '...'
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elif aname[-1] == '?':
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aname = '[' + aname[:-1] + ']'
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elif aname[-1] == '*':
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aname = '[' + aname[:-1] + '...]'
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s = s[:-1] # remove last space
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def get_help_text(self, additional_see_also=None, plain=True,
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see_also_as_links=False, verbose=True):
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"""Return a text string with help for this command.
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:param additional_see_also: Additional help topics to be
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:param plain: if False, raw help (reStructuredText) is
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returned instead of plain text.
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:param see_also_as_links: if True, convert items in 'See also'
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list to internal links (used by bzr_man rstx generator)
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:param verbose: if True, display the full help, otherwise
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leave out the descriptive sections and just display
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usage help (e.g. Purpose, Usage, Options) with a
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message explaining how to obtain full help.
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raise NotImplementedError("sorry, no detailed help yet for %r" % self.name())
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# Extract the summary (purpose) and sections out from the text
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purpose,sections,order = self._get_help_parts(doc)
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# If a custom usage section was provided, use it
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if sections.has_key('Usage'):
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usage = sections.pop('Usage')
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usage = self._usage()
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# The header is the purpose and usage
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result += ':Purpose: %s\n' % purpose
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if usage.find('\n') >= 0:
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result += ':Usage:\n%s\n' % usage
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result += ':Usage: %s\n' % usage
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# XXX: optparse implicitly rewraps the help, and not always perfectly,
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# so we get <https://bugs.launchpad.net/bzr/+bug/249908>. -- mbp
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options = option.get_optparser(self.options()).format_option_help()
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# XXX: According to the spec, ReST option lists actually don't support
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# options like --1.9 so that causes syntax errors (in Sphinx at least).
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# As that pattern always appears in the commands that break, we trap
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# on that and then format that block of 'format' options as a literal
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if not plain and options.find(' --1.9 ') != -1:
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options = options.replace(' format:\n', ' format::\n\n', 1)
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if options.startswith('Options:'):
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result += ':' + options
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elif options.startswith('options:'):
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# Python 2.4 version of optparse
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result += ':Options:' + options[len('options:'):]
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# Add the description, indenting it 2 spaces
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# to match the indentation of the options
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if sections.has_key(None):
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text = sections.pop(None)
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text = '\n '.join(text.splitlines())
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result += ':%s:\n %s\n\n' % ('Description',text)
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# Add the custom sections (e.g. Examples). Note that there's no need
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# to indent these as they must be indented already in the source.
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if sections.has_key(label):
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result += ':%s:\n%s\n' % (label,sections[label])
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result += ("See bzr help %s for more details and examples.\n\n"
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# Add the aliases, source (plug-in) and see also links, if any
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result += ':Aliases: '
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result += ', '.join(self.aliases) + '\n'
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plugin_name = self.plugin_name()
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if plugin_name is not None:
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result += ':From: plugin "%s"\n' % plugin_name
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see_also = self.get_see_also(additional_see_also)
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if not plain and see_also_as_links:
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for item in see_also:
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# topics doesn't have an independent section
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# so don't create a real link
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see_also_links.append(item)
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# Use a Sphinx link for this entry
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link_text = ":doc:`%s <%s-help>`" % (item, item)
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see_also_links.append(link_text)
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see_also = see_also_links
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result += ':See also: '
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result += ', '.join(see_also) + '\n'
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# If this will be rendered as plain text, convert it
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import bzrlib.help_topics
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result = bzrlib.help_topics.help_as_plain_text(result)
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def _get_help_parts(text):
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"""Split help text into a summary and named sections.
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:return: (summary,sections,order) where summary is the top line and
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sections is a dictionary of the rest indexed by section name.
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order is the order the section appear in the text.
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A section starts with a heading line of the form ":xxx:".
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Indented text on following lines is the section value.
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All text found outside a named section is assigned to the
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default section which is given the key of None.
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def save_section(sections, order, label, section):
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if sections.has_key(label):
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sections[label] += '\n' + section
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sections[label] = section
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lines = text.rstrip().splitlines()
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summary = lines.pop(0)
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label,section = None,''
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if line.startswith(':') and line.endswith(':') and len(line) > 2:
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save_section(sections, order, label, section)
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label,section = line[1:-1],''
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elif (label is not None) and len(line) > 1 and not line[0].isspace():
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save_section(sections, order, label, section)
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label,section = None,line
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section += '\n' + line
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save_section(sections, order, label, section)
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return summary, sections, order
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def get_help_topic(self):
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"""Return the commands help topic - its name."""
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def get_see_also(self, additional_terms=None):
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"""Return a list of help topics that are related to this command.
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The list is derived from the content of the _see_also attribute. Any
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duplicates are removed and the result is in lexical order.
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:param additional_terms: Additional help topics to cross-reference.
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:return: A list of help topics.
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see_also = set(getattr(self, '_see_also', []))
603
see_also.update(additional_terms)
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return sorted(see_also)
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"""Return dict of valid options for this command.
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Maps from long option name to option object."""
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r = Option.STD_OPTIONS.copy()
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for o in self.takes_options:
613
if isinstance(o, basestring):
614
o = option.Option.OPTIONS[o]
616
if o.name in std_names:
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self.supported_std_options.append(o.name)
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def _setup_outf(self):
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"""Return a file linked to stdout, which has proper encoding."""
622
self.outf = ui.ui_factory.make_output_stream(
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encoding_type=self.encoding_type)
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def run_argv_aliases(self, argv, alias_argv=None):
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"""Parse the command line and run with extra aliases in alias_argv."""
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warn("Passing None for [] is deprecated from bzrlib 0.10",
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DeprecationWarning, stacklevel=2)
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args, opts = parse_args(self, argv, alias_argv)
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# Process the standard options
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def run_argv(self, argv):
270
"""Parse command line and run."""
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args, opts = parse_args(argv)
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if 'help' in opts: # e.g. bzr add --help
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sys.stdout.write(self.get_help_text())
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if 'usage' in opts: # e.g. bzr add --usage
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sys.stdout.write(self.get_help_text(verbose=False))
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trace.set_verbosity_level(option._verbosity_level)
641
if 'verbose' in self.supported_std_options:
642
opts['verbose'] = trace.is_verbose()
643
elif opts.has_key('verbose'):
645
if 'quiet' in self.supported_std_options:
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opts['quiet'] = trace.is_quiet()
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elif opts.has_key('quiet'):
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from bzrlib.help import help_on_command
275
help_on_command(self.name())
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# check options are reasonable
279
allowed = self.takes_options
281
if oname not in allowed:
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raise BzrCommandError("option '--%s' is not allowed for command %r"
283
% (oname, self.name()))
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# mix arguments and options into one dictionary
651
286
cmdargs = _match_argform(self.name(), self.takes_args, args)
688
317
return _unsquish_command_name(self.__class__.__name__)
690
def plugin_name(self):
691
"""Get the name of the plugin that provides this command.
693
:return: The name of the plugin or None if the command is builtin.
695
mod_parts = self.__module__.split('.')
696
if len(mod_parts) >= 3 and mod_parts[1] == 'plugins':
320
def parse_spec(spec):
326
>>> parse_spec("../@")
328
>>> parse_spec("../f/@35")
330
>>> parse_spec('./@revid:john@arbash-meinel.com-20050711044610-3ca0327c6a222f67')
331
['.', 'revid:john@arbash-meinel.com-20050711044610-3ca0327c6a222f67']
336
parsed = spec.split('/@')
337
assert len(parsed) == 2
702
class CommandHooks(Hooks):
703
"""Hooks related to Command object creation/enumeration."""
706
"""Create the default hooks.
708
These are all empty initially, because by default nothing should get
712
self.create_hook(HookPoint('extend_command',
713
"Called after creating a command object to allow modifications "
714
"such as adding or removing options, docs etc. Called with the "
715
"new bzrlib.commands.Command object.", (1, 13), None))
716
self.create_hook(HookPoint('get_command',
717
"Called when creating a single command. Called with "
718
"(cmd_or_None, command_name). get_command should either return "
719
"the cmd_or_None parameter, or a replacement Command object that "
720
"should be used for the command. Note that the Command.hooks "
721
"hooks are core infrastructure. Many users will prefer to use "
722
"bzrlib.commands.register_command or plugin_cmds.register_lazy.",
724
self.create_hook(HookPoint('get_missing_command',
725
"Called when creating a single command if no command could be "
726
"found. Called with (command_name). get_missing_command should "
727
"either return None, or a Command object to be used for the "
728
"command.", (1, 17), None))
729
self.create_hook(HookPoint('list_commands',
730
"Called when enumerating commands. Called with a set of "
731
"cmd_name strings for all the commands found so far. This set "
732
" is safe to mutate - e.g. to remove a command. "
733
"list_commands should return the updated set of command names.",
736
Command.hooks = CommandHooks()
739
def parse_args(command, argv, alias_argv=None):
342
parsed[1] = int(parsed[1])
344
pass # We can allow stuff like ./@revid:blahblahblah
348
parsed = [spec, None]
352
# list of all available options; the rhs can be either None for an
353
# option that takes no argument, or a constructor function that checks
366
'revision': _parse_revision_str,
378
'merge-type': get_merge_type,
392
def parse_args(argv):
740
393
"""Parse command line.
742
395
Arguments and options are parsed at this level before being passed
743
396
down to specific command handlers. This routine knows, from a
744
397
lookup table, something about the available options, what optargs
745
398
they take, and which commands will accept them.
400
>>> parse_args('--help'.split())
402
>>> parse_args('help -- --invalidcmd'.split())
403
(['help', '--invalidcmd'], {})
404
>>> parse_args('--version'.split())
405
([], {'version': True})
406
>>> parse_args('status --all'.split())
407
(['status'], {'all': True})
408
>>> parse_args('commit --message=biter'.split())
409
(['commit'], {'message': u'biter'})
410
>>> parse_args('log -r 500'.split())
411
(['log'], {'revision': [500]})
412
>>> parse_args('log -r500..600'.split())
413
(['log'], {'revision': [500, 600]})
414
>>> parse_args('log -vr500..600'.split())
415
(['log'], {'verbose': True, 'revision': [500, 600]})
416
>>> parse_args('log -rv500..600'.split()) #the r takes an argument
417
(['log'], {'revision': ['v500', 600]})
747
# TODO: make it a method of the Command?
748
parser = option.get_optparser(command.options())
749
if alias_argv is not None:
750
args = alias_argv + argv
754
options, args = parser.parse_args(args)
755
opts = dict([(k, v) for k, v in options.__dict__.iteritems() if
756
v is not option.OptionParser.DEFAULT_VALUE])
425
if not argsover and a[0] == '-':
426
# option names must not be unicode
431
# We've received a standalone -- No more flags
434
mutter(" got option %r" % a)
436
optname, optarg = a[2:].split('=', 1)
439
if optname not in OPTIONS:
440
raise BzrError('unknown long option %r' % a)
443
if shortopt in SHORT_OPTIONS:
444
# Multi-character options must have a space to delimit
446
optname = SHORT_OPTIONS[shortopt]
448
# Single character short options, can be chained,
449
# and have their value appended to their name
451
if shortopt not in SHORT_OPTIONS:
452
# We didn't find the multi-character name, and we
453
# didn't find the single char name
454
raise BzrError('unknown short option %r' % a)
455
optname = SHORT_OPTIONS[shortopt]
458
# There are extra things on this option
459
# see if it is the value, or if it is another
461
optargfn = OPTIONS[optname]
463
# This option does not take an argument, so the
464
# next entry is another short option, pack it back
466
argv.insert(0, '-' + a[2:])
468
# This option takes an argument, so pack it
473
# XXX: Do we ever want to support this, e.g. for -r?
474
raise BzrError('repeated option %r' % a)
476
optargfn = OPTIONS[optname]
480
raise BzrError('option %r needs an argument' % a)
483
opts[optname] = optargfn(optarg)
486
raise BzrError('option %r takes no argument' % optname)
757
491
return args, opts
760
496
def _match_argform(cmd, takes_args, args):
774
510
argdict[argname + '_list'] = None
775
511
elif ap[-1] == '+':
777
raise errors.BzrCommandError("command %r needs one or more %s"
778
% (cmd, argname.upper()))
513
raise BzrCommandError("command %r needs one or more %s"
514
% (cmd, argname.upper()))
780
516
argdict[argname + '_list'] = args[:]
782
518
elif ap[-1] == '$': # all but one
783
519
if len(args) < 2:
784
raise errors.BzrCommandError("command %r needs one or more %s"
785
% (cmd, argname.upper()))
520
raise BzrCommandError("command %r needs one or more %s"
521
% (cmd, argname.upper()))
786
522
argdict[argname + '_list'] = args[:-1]
789
525
# just a plain arg
792
raise errors.BzrCommandError("command %r requires argument %s"
793
% (cmd, argname.upper()))
528
raise BzrCommandError("command %r requires argument %s"
529
% (cmd, argname.upper()))
795
531
argdict[argname] = args.pop(0)
798
raise errors.BzrCommandError("extra argument to command %s: %s"
534
raise BzrCommandError("extra argument to command %s: %s"
803
def apply_coveraged(dirname, the_callable, *args, **kwargs):
804
# Cannot use "import trace", as that would import bzrlib.trace instead of
805
# the standard library's trace.
806
trace = __import__('trace')
808
tracer = trace.Trace(count=1, trace=0)
809
sys.settrace(tracer.globaltrace)
810
threading.settrace(tracer.globaltrace)
813
return exception_to_return_code(the_callable, *args, **kwargs)
816
results = tracer.results()
817
results.write_results(show_missing=1, summary=False,
821
541
def apply_profiled(the_callable, *args, **kwargs):
825
544
pffileno, pfname = tempfile.mkstemp()
827
546
prof = hotshot.Profile(pfname)
829
ret = prof.runcall(exception_to_return_code, the_callable, *args,
548
ret = prof.runcall(the_callable, *args, **kwargs) or 0
833
553
stats = hotshot.stats.load(pfname)
835
stats.sort_stats('cum') # 'time'
555
stats.sort_stats('time')
836
556
## XXX: Might like to write to stderr or the trace file instead but
837
557
## print_stats seems hardcoded to stdout
838
558
stats.print_stats(20)
841
562
os.close(pffileno)
842
563
os.remove(pfname)
845
def exception_to_return_code(the_callable, *args, **kwargs):
846
"""UI level helper for profiling and coverage.
848
This transforms exceptions into a return value of 3. As such its only
849
relevant to the UI layer, and should never be called where catching
850
exceptions may be desirable.
853
return the_callable(*args, **kwargs)
854
except (KeyboardInterrupt, Exception), e:
855
# used to handle AssertionError and KeyboardInterrupt
856
# specially here, but hopefully they're handled ok by the logger now
857
exc_info = sys.exc_info()
858
exitcode = trace.report_exception(exc_info, sys.stderr)
859
if os.environ.get('BZR_PDB'):
860
print '**** entering debugger'
863
if sys.version_info[:2] < (2, 6):
865
# pdb.post_mortem(tb)
866
# but because pdb.post_mortem gives bad results for tracebacks
867
# from inside generators, we do it manually.
868
# (http://bugs.python.org/issue4150, fixed in Python 2.6)
870
# Setup pdb on the traceback
873
p.setup(tb.tb_frame, tb)
874
# Point the debugger at the deepest frame of the stack
875
p.curindex = len(p.stack) - 1
876
p.curframe = p.stack[p.curindex][0]
877
# Start the pdb prompt.
878
p.print_stack_entry(p.stack[p.curindex])
886
def apply_lsprofiled(filename, the_callable, *args, **kwargs):
887
from bzrlib.lsprof import profile
888
ret, stats = profile(exception_to_return_code, the_callable, *args, **kwargs)
894
trace.note('Profile data written to "%s".', filename)
898
def shlex_split_unicode(unsplit):
900
return [u.decode('utf-8') for u in shlex.split(unsplit.encode('utf-8'))]
903
def get_alias(cmd, config=None):
904
"""Return an expanded alias, or None if no alias exists.
907
Command to be checked for an alias.
909
Used to specify an alternative config to use,
910
which is especially useful for testing.
911
If it is unspecified, the global config will be used.
915
config = bzrlib.config.GlobalConfig()
916
alias = config.get_alias(cmd)
918
return shlex_split_unicode(alias)
922
566
def run_bzr(argv):
923
567
"""Execute a command.
569
This is similar to main(), but without all the trappings for
570
logging and error handling.
926
573
The command-line arguments, without the program name from argv[0]
927
These should already be decoded. All library/test code calling
928
run_bzr should be passing valid strings (don't need decoding).
930
575
Returns a command status or raises an exception.
932
577
Special master options: these must come before the command because
936
581
Do not load plugin modules at all
942
584
Only use builtin commands. (Plugins are still allowed to change
943
585
other behaviour.)
946
Run under the Python hotshot profiler.
949
Run under the Python lsprof profiler.
952
Generate line coverage report in the specified directory.
955
Specify the number of processes that can be run concurrently (selftest).
588
Run under the Python profiler.
957
trace.mutter("bazaar version: " + bzrlib.__version__)
959
trace.mutter("bzr arguments: %r", argv)
590
# Load all of the transport methods
591
import bzrlib.transport.local, bzrlib.transport.http
593
argv = [a.decode(bzrlib.user_encoding) for a in argv]
961
opt_lsprof = opt_profile = opt_no_plugins = opt_builtin = \
962
opt_no_aliases = False
963
opt_lsprof_file = opt_coverage_dir = None
595
opt_profile = opt_no_plugins = opt_builtin = False
965
597
# --no-plugins is handled specially at a very early stage. We need
966
598
# to load plugins before doing other command parsing so that they
967
599
# can override commands, but this needs to happen first.
973
602
if a == '--profile':
974
603
opt_profile = True
975
elif a == '--lsprof':
977
elif a == '--lsprof-file':
979
opt_lsprof_file = argv[i + 1]
981
604
elif a == '--no-plugins':
982
605
opt_no_plugins = True
983
elif a == '--no-aliases':
984
opt_no_aliases = True
985
606
elif a == '--builtin':
986
607
opt_builtin = True
987
elif a == '--concurrency':
988
os.environ['BZR_CONCURRENCY'] = argv[i + 1]
990
elif a == '--coverage':
991
opt_coverage_dir = argv[i + 1]
993
elif a.startswith('-D'):
994
debug.debug_flags.add(a[2:])
999
debug.set_debug_flags_from_config()
1003
from bzrlib.builtins import cmd_help
1004
cmd_help().run_argv_aliases([])
612
if (not argv) or (argv[0] == '--help'):
613
from bzrlib.help import help
1007
620
if argv[0] == '--version':
1008
from bzrlib.builtins import cmd_version
1009
cmd_version().run_argv_aliases([])
621
from bzrlib.builtins import show_version
1012
625
if not opt_no_plugins:
1013
626
from bzrlib.plugin import load_plugins
1016
from bzrlib.plugin import disable_plugins
1021
if not opt_no_aliases:
1022
alias_argv = get_alias(argv[0])
1024
user_encoding = osutils.get_user_encoding()
1025
alias_argv = [a.decode(user_encoding) for a in alias_argv]
1026
argv[0] = alias_argv.pop(0)
1029
# We want only 'ascii' command names, but the user may have typed
1030
# in a Unicode name. In that case, they should just get a
1031
# 'command not found' error later.
629
cmd = str(argv.pop(0))
1033
631
cmd_obj = get_cmd_object(cmd, plugins_override=not opt_builtin)
1034
run = cmd_obj.run_argv_aliases
1035
run_argv = [argv, alias_argv]
1038
# We can be called recursively (tests for example), but we don't want
1039
# the verbosity level to propagate.
1040
saved_verbosity_level = option._verbosity_level
1041
option._verbosity_level = 0
1043
if opt_coverage_dir:
1045
'--coverage ignored, because --lsprof is in use.')
1046
ret = apply_lsprofiled(opt_lsprof_file, run, *run_argv)
1048
if opt_coverage_dir:
1050
'--coverage ignored, because --profile is in use.')
1051
ret = apply_profiled(run, *run_argv)
1052
elif opt_coverage_dir:
1053
ret = apply_coveraged(opt_coverage_dir, run, *run_argv)
1055
ret = run(*run_argv)
1058
# reset, in case we may do other commands later within the same
1059
# process. Commands that want to execute sub-commands must propagate
1060
# --verbose in their own way.
1061
if 'memory' in debug.debug_flags:
1062
trace.debug_memory('Process status after command:', short=False)
1063
option._verbosity_level = saved_verbosity_level
1066
def display_command(func):
1067
"""Decorator that suppresses pipe/interrupt errors."""
1068
def ignore_pipe(*args, **kwargs):
1070
result = func(*args, **kwargs)
1074
if getattr(e, 'errno', None) is None:
1076
if e.errno != errno.EPIPE:
1077
# Win32 raises IOError with errno=0 on a broken pipe
1078
if sys.platform != 'win32' or (e.errno not in (0, errno.EINVAL)):
1081
except KeyboardInterrupt:
1086
def install_bzr_command_hooks():
1087
"""Install the hooks to supply bzr's own commands."""
1088
if _list_bzr_commands in Command.hooks["list_commands"]:
1090
Command.hooks.install_named_hook("list_commands", _list_bzr_commands,
1092
Command.hooks.install_named_hook("get_command", _get_bzr_command,
1094
Command.hooks.install_named_hook("get_command", _get_plugin_command,
1095
"bzr plugin commands")
1096
Command.hooks.install_named_hook("get_command", _get_external_command,
1097
"bzr external command lookup")
1098
Command.hooks.install_named_hook("get_missing_command", _try_plugin_provider,
1099
"bzr plugin-provider-db check")
1102
def main(argv=None):
1103
"""Main entry point of command-line interface.
1105
:param argv: list of unicode command-line arguments similar to sys.argv.
1106
argv[0] is script name usually, it will be ignored.
1107
Don't pass here sys.argv because this list contains plain strings
1108
and not unicode; pass None instead.
1110
:return: exit code of bzr command.
634
ret = apply_profiled(cmd_obj.run_argv, argv)
636
ret = cmd_obj.run_argv(argv)
1112
641
import bzrlib.ui
1113
bzrlib.ui.ui_factory = bzrlib.ui.make_ui_for_terminal(
1114
sys.stdin, sys.stdout, sys.stderr)
642
bzrlib.trace.log_startup(argv)
643
bzrlib.ui.ui_factory = bzrlib.ui.TextUIFactory()
1116
# Is this a final release version? If so, we should suppress warnings
1117
if bzrlib.version_info[3] == 'final':
1118
suppress_deprecation_warnings(override=True)
1120
argv = osutils.get_unicode_argv()
1124
# ensure all arguments are unicode strings
1126
if isinstance(a, unicode):
1129
new_argv.append(a.decode('ascii'))
1130
except UnicodeDecodeError:
1131
raise errors.BzrError("argv should be list of unicode strings.")
1133
ret = run_bzr_catch_errors(argv)
1134
bzrlib.ui.ui_factory.log_transport_activity(
1135
display=('bytes' in debug.debug_flags))
1136
trace.mutter("return code %d", ret)
1137
osutils.report_extension_load_failures()
1141
def run_bzr_catch_errors(argv):
1142
"""Run a bzr command with parameters as described by argv.
1144
This function assumed that that UI layer is setup, that symbol deprecations
1145
are already applied, and that unicode decoding has already been performed on argv.
1147
install_bzr_command_hooks()
1148
return exception_to_return_code(run_bzr, argv)
1151
def run_bzr_catch_user_errors(argv):
1152
"""Run bzr and report user errors, but let internal errors propagate.
1154
This is used for the test suite, and might be useful for other programs
1155
that want to wrap the commandline interface.
1157
install_bzr_command_hooks()
1159
return run_bzr(argv)
648
return run_bzr(argv[1:])
650
# do this here inside the exception wrappers to catch EPIPE
652
#wrap common errors as CommandErrors.
653
except (NotBranchError,), e:
654
raise BzrCommandError(str(e))
655
except BzrCommandError, e:
656
# command line syntax error, etc
660
bzrlib.trace.log_exception()
662
except AssertionError, e:
663
bzrlib.trace.log_exception('assertion failed: ' + str(e))
665
except KeyboardInterrupt, e:
666
bzrlib.trace.note('interrupted')
1160
668
except Exception, e:
1161
if (isinstance(e, (OSError, IOError))
1162
or not getattr(e, 'internal_error', True)):
1163
trace.report_exception(sys.exc_info(), sys.stderr)
1169
class HelpCommandIndex(object):
1170
"""A index for bzr help that returns commands."""
1173
self.prefix = 'commands/'
1175
def get_topics(self, topic):
1176
"""Search for topic amongst commands.
1178
:param topic: A topic to search for.
1179
:return: A list which is either empty or contains a single
1182
if topic and topic.startswith(self.prefix):
1183
topic = topic[len(self.prefix):]
1185
cmd = _get_cmd_object(topic)
1192
class Provider(object):
1193
'''Generic class to be overriden by plugins'''
1195
def plugin_for_command(self, cmd_name):
1196
'''Takes a command and returns the information for that plugin
1198
:return: A dictionary with all the available information
1199
for the requested plugin
1201
raise NotImplementedError
1204
class ProvidersRegistry(registry.Registry):
1205
'''This registry exists to allow other providers to exist'''
1208
for key, provider in self.iteritems():
1211
command_providers_registry = ProvidersRegistry()
670
if (isinstance(e, IOError)
671
and hasattr(e, 'errno')
672
and e.errno == errno.EPIPE):
673
bzrlib.trace.note('broken pipe')
676
bzrlib.trace.log_exception()
1214
679
if __name__ == '__main__':
1215
680
sys.exit(main(sys.argv))
added
removed
bzrlib/commands.py
