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# Copyright (C) 2005-2010 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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# 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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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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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""Bazaar-NG -- a free distributed version-control tool
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**WARNING: THIS IS AN UNSTABLE DEVELOPMENT VERSION**
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* Metadata format is not stable yet -- you may need to
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discard history in the future.
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* Many commands unimplemented or partially implemented.
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* Space-inefficient storage.
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* No merge operators yet.
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Show software version/licence/non-warranty.
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Start versioning the current directory
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Show revision history.
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bzr move FROM... DESTDIR
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Move one or more files to a different directory.
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Show changes from last revision to working copy.
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bzr commit -m 'MESSAGE'
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Store current state as new revision.
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bzr export [-r REVNO] DESTINATION
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Export the branch state at a previous version.
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Show summary of pending changes.
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Make a file not versioned.
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Show statistics about this branch.
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Verify history is stored safely.
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(for more type 'bzr help commands')
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import sys, os, time, types, shutil, tempfile, fnmatch, difflib, os.path
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from pprint import pprint
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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.plugin import disable_plugins, load_plugins
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from bzrlib import registry
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from bzrlib.symbol_versioning import (
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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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"""Special registry mapping command names to command classes.
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:ivar overridden_registry: Look in this registry for commands being
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overridden by this registry. This can be used to tell plugin commands
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about the builtin they're decorating.
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registry.Registry.__init__(self)
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self.overridden_registry = None
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# map from aliases to the real command that implements the name
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def get(self, command_name):
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real_name = self._alias_dict.get(command_name, command_name)
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return registry.Registry.get(self, real_name)
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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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if self.overridden_registry:
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previous = self.overridden_registry.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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for a in cmd.aliases:
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self._alias_dict[a] = k_unsquished
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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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self._alias_dict[a] = key
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plugin_cmds = CommandRegistry()
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builtin_command_registry = CommandRegistry()
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plugin_cmds.overridden_registry = builtin_command_registry
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def register_command(cmd, decorate=False):
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"""Register a plugin command.
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Should generally be avoided in favor of lazy registration.
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return plugin_cmds.register(cmd, decorate)
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def _squish_command_name(cmd):
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return 'cmd_' + cmd.replace('-', '_')
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def _unsquish_command_name(cmd):
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return cmd[4:].replace('_','-')
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@deprecated_function(deprecated_in((2, 2, 0)))
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def _builtin_commands():
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"""Return a dict of {name: cmd_class} for builtin commands.
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:deprecated: Use the builtin_command_registry registry instead
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# return dict(name: cmd_class)
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return dict(builtin_command_registry.items())
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def _register_builtin_commands():
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if builtin_command_registry.keys():
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import bzrlib.builtins
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for cmd_class in _scan_module_for_commands(bzrlib.builtins).values():
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builtin_command_registry.register(cmd_class)
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bzrlib.builtins._register_lazy_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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if name.startswith("cmd_"):
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real_name = _unsquish_command_name(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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This is not the public interface, just the default hook called by all_command_names.
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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 builtin_command_registry.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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def get_cmd_object(cmd_name, plugins_override=True):
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"""Return the command object 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, check_missing=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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:param check_missing: Look up commands not found in the regular index via
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the get_missing_command hook.
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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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if cmd is None and check_missing:
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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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cmd_class = builtin_command_registry.get(cmd_name)
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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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class Command(object):
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from bzrlib.store import ImmutableStore
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from bzrlib.trace import mutter, note, log_error
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from bzrlib.errors import bailout, BzrError, BzrCheckError, BzrCommandError
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from bzrlib.osutils import quotefn, pumpfile, isdir, isfile
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from bzrlib.tree import RevisionTree, EmptyTree, WorkingTree, Tree
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from bzrlib.revision import Revision
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from bzrlib import Branch, Inventory, InventoryEntry, ScratchBranch, BZRDIR, \
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BZR_DIFF_FORMAT = "## Bazaar-NG diff, format 0 ##\n"
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BZR_PATCHNAME_FORMAT = 'cset:sha1:%s'
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## standard representation
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NONE_STRING = '(none)'
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def get_cmd_class(cmd):
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cmd = CMD_ALIASES.get(cmd, cmd)
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cmd_class = globals()['cmd_' + cmd.replace('-', '_')]
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raise BzrError("unknown command %r" % cmd)
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return cmd, cmd_class
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"""Base class for commands.
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Commands are the heart of the command-line bzr interface.
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The command object mostly handles the mapping of command-line
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parameters into one or more bzrlib operations, and of the results
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Commands normally don't have any state. All their arguments are
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passed in to the run method. (Subclasses may take a different
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policy if the behaviour of the instance needs to depend on e.g. a
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shell plugin and not just its Python class.)
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The docstring for an actual command should give a single-line
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summary, then a complete description of the command. A grammar
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description will be inserted.
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Other accepted names for this command.
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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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If true, this command isn't advertised.
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takes_options = []
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encoding_type = 'strict'
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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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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). Note though, that
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as it releases all resources, this may release locks that the command
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wants to hold, so use should be done with care.
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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', []))
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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:
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if isinstance(o, basestring):
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o = option.Option.OPTIONS[o]
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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."""
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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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args, opts = parse_args(self, argv, alias_argv)
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# Process the standard options
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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)
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if 'verbose' in self.supported_std_options:
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opts['verbose'] = trace.is_verbose()
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elif opts.has_key('verbose'):
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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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# mix arguments and options into one dictionary
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cmdargs = _match_argform(self.name(), self.takes_args, args)
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for k, v in opts.items():
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cmdopts[k.replace('-', '_')] = v
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all_cmd_args = cmdargs.copy()
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all_cmd_args.update(cmdopts)
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return self.run(**all_cmd_args)
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def _setup_run(self):
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"""Wrap the defined run method on self with a cleanup.
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This is called by __init__ to make the Command be able to be run
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by just calling run(), as it could be before cleanups were added.
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If a different form of cleanups are in use by your Command subclass,
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you can override this method.
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def run(*args, **kwargs):
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self._operation = cleanup.OperationWithCleanups(class_run)
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return self._operation.run_simple(*args, **kwargs)
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@deprecated_method(deprecated_in((2, 2, 0)))
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def run_direct(self, *args, **kwargs):
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"""Deprecated thunk from bzrlib 2.1."""
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return self.run(*args, **kwargs)
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def __init__(self, options, arguments):
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"""Construct and run the command.
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Sets self.status to the return value of run()."""
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assert isinstance(options, dict)
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assert isinstance(arguments, dict)
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cmdargs = options.copy()
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cmdargs.update(arguments)
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assert self.__doc__ != Command.__doc__, \
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("No help message set for %r" % self)
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self.status = self.run(**cmdargs)
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"""Actually run the command.
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"""Override this in sub-classes.
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This is invoked with the options and arguments bound to
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keyword parameters.
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Return 0 or None if the command was successful, or a non-zero
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shell error code if not. It's OK for this method to allow
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an exception to raise up.
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This method is automatically wrapped by Command.__init__ with a
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cleanup operation, stored as self._operation. This can be used
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via self.add_cleanup to perform automatic cleanups at the end of
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The argument for run are assembled by introspection. So for instance,
726
if your command takes an argument files, you would declare::
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def run(self, files=None):
731
raise NotImplementedError('no implementation of command %r'
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"""Return help message for this class."""
736
from inspect import getdoc
737
if self.__doc__ is Command.__doc__:
742
return _unsquish_command_name(self.__class__.__name__)
744
def plugin_name(self):
745
"""Get the name of the plugin that provides this command.
747
:return: The name of the plugin or None if the command is builtin.
749
mod_parts = self.__module__.split('.')
750
if len(mod_parts) >= 3 and mod_parts[1] == 'plugins':
756
class CommandHooks(Hooks):
757
"""Hooks related to Command object creation/enumeration."""
760
"""Create the default hooks.
762
These are all empty initially, because by default nothing should get
766
self.create_hook(HookPoint('extend_command',
767
"Called after creating a command object to allow modifications "
768
"such as adding or removing options, docs etc. Called with the "
769
"new bzrlib.commands.Command object.", (1, 13), None))
770
self.create_hook(HookPoint('get_command',
771
"Called when creating a single command. Called with "
772
"(cmd_or_None, command_name). get_command should either return "
773
"the cmd_or_None parameter, or a replacement Command object that "
774
"should be used for the command. Note that the Command.hooks "
775
"hooks are core infrastructure. Many users will prefer to use "
776
"bzrlib.commands.register_command or plugin_cmds.register_lazy.",
778
self.create_hook(HookPoint('get_missing_command',
779
"Called when creating a single command if no command could be "
780
"found. Called with (command_name). get_missing_command should "
781
"either return None, or a Command object to be used for the "
782
"command.", (1, 17), None))
783
self.create_hook(HookPoint('list_commands',
784
"Called when enumerating commands. Called with a set of "
785
"cmd_name strings for all the commands found so far. This set "
786
" is safe to mutate - e.g. to remove a command. "
787
"list_commands should return the updated set of command names.",
790
Command.hooks = CommandHooks()
793
def parse_args(command, argv, alias_argv=None):
158
Return True if the command was successful, False if not.
164
class cmd_status(Command):
165
"""Display status summary.
167
For each file there is a single line giving its file state and name.
168
The name is that in the current revision unless it is deleted or
169
missing, in which case the old name is shown.
171
takes_options = ['all']
173
def run(self, all=False):
174
#import bzrlib.status
175
#bzrlib.status.tree_status(Branch('.'))
176
Branch('.').show_status(show_all=all)
179
class cmd_cat_revision(Command):
180
"""Write out metadata for a revision."""
183
takes_args = ['revision_id']
185
def run(self, revision_id):
186
Branch('.').get_revision(revision_id).write_xml(sys.stdout)
189
class cmd_revno(Command):
190
"""Show current revision number.
192
This is equal to the number of revisions on this branch."""
194
print Branch('.').revno()
197
class cmd_add(Command):
198
"""Add specified files or directories.
200
In non-recursive mode, all the named items are added, regardless
201
of whether they were previously ignored. A warning is given if
202
any of the named files are already versioned.
204
In recursive mode (the default), files are treated the same way
205
but the behaviour for directories is different. Directories that
206
are already versioned do not give a warning. All directories,
207
whether already versioned or not, are searched for files or
208
subdirectories that are neither versioned or ignored, and these
209
are added. This search proceeds recursively into versioned
212
Therefore simply saying 'bzr add .' will version all files that
213
are currently unknown.
215
TODO: Perhaps adding a file whose directly is not versioned should
216
recursively add that parent, rather than giving an error?
218
takes_args = ['file+']
219
takes_options = ['verbose']
221
def run(self, file_list, verbose=False):
222
bzrlib.add.smart_add(file_list, verbose)
225
def Relpath(Command):
226
"""Show path of a file relative to root"""
227
takes_args = ('filename')
230
print Branch(self.args['filename']).relpath(filename)
234
class cmd_inventory(Command):
235
"""Show inventory of the current working copy or a revision."""
236
takes_options = ['revision']
238
def run(self, revision=None):
241
inv = b.read_working_inventory()
243
inv = b.get_revision_inventory(b.lookup_revision(revision))
245
for path, entry in inv.iter_entries():
246
print '%-50s %s' % (entry.file_id, path)
249
class cmd_move(Command):
250
"""Move files to a different directory.
255
The destination must be a versioned directory in the same branch.
257
takes_args = ['source$', 'dest']
258
def run(self, source_list, dest):
261
b.move([b.relpath(s) for s in source_list], b.relpath(dest))
264
class cmd_rename(Command):
265
"""Change the name of an entry.
268
bzr rename frob.c frobber.c
269
bzr rename src/frob.c lib/frob.c
271
It is an error if the destination name exists.
273
See also the 'move' command, which moves files into a different
274
directory without changing their name.
276
TODO: Some way to rename multiple files without invoking bzr for each
278
takes_args = ['from_name', 'to_name']
280
def run(self, from_name, to_name):
282
b.rename_one(b.relpath(from_name), b.relpath(to_name))
286
class cmd_renames(Command):
287
"""Show list of renamed files.
289
TODO: Option to show renames between two historical versions.
291
TODO: Only show renames under dir, rather than in the whole branch.
293
takes_args = ['dir?']
295
def run(self, dir='.'):
297
old_inv = b.basis_tree().inventory
298
new_inv = b.read_working_inventory()
300
renames = list(bzrlib.tree.find_renames(old_inv, new_inv))
302
for old_name, new_name in renames:
303
print "%s => %s" % (old_name, new_name)
306
class cmd_info(Command):
307
"""Show statistical information for this branch"""
310
info.show_info(Branch('.'))
313
class cmd_remove(Command):
314
"""Make a file unversioned.
316
This makes bzr stop tracking changes to a versioned file. It does
317
not delete the working copy.
319
takes_args = ['file+']
320
takes_options = ['verbose']
322
def run(self, file_list, verbose=False):
323
b = Branch(file_list[0])
324
b.remove([b.relpath(f) for f in file_list], verbose=verbose)
327
class cmd_file_id(Command):
328
"""Print file_id of a particular file or directory.
330
The file_id is assigned when the file is first added and remains the
331
same through all revisions where the file exists, even when it is
335
takes_args = ['filename']
336
def run(self, filename):
338
i = b.inventory.path2id(b.relpath(filename))
340
bailout("%r is not a versioned file" % filename)
345
class cmd_file_path(Command):
346
"""Print path of file_ids to a file or directory.
348
This prints one line for each directory down to the target,
349
starting at the branch root."""
351
takes_args = ['filename']
352
def run(self, filename):
355
fid = inv.path2id(b.relpath(filename))
357
bailout("%r is not a versioned file" % filename)
358
for fip in inv.get_idpath(fid):
362
class cmd_revision_history(Command):
363
"""Display list of revision ids on this branch."""
365
for patchid in Branch('.').revision_history():
369
class cmd_directories(Command):
370
"""Display list of versioned directories in this branch."""
372
for name, ie in Branch('.').read_working_inventory().directories():
379
class cmd_init(Command):
380
"""Make a directory into a versioned branch.
382
Use this to create an empty branch, or before importing an
385
Recipe for importing a tree of files:
390
bzr commit -m 'imported project'
393
Branch('.', init=True)
396
class cmd_diff(Command):
397
"""Show differences in working tree.
399
If files are listed, only the changes in those files are listed.
400
Otherwise, all changes for the tree are listed.
402
TODO: Given two revision arguments, show the difference between them.
404
TODO: Allow diff across branches.
406
TODO: Option to use external diff command; could be GNU diff, wdiff,
409
TODO: Python difflib is not exactly the same as unidiff; should
410
either fix it up or prefer to use an external diff.
412
TODO: If a directory is given, diff everything under that.
414
TODO: Selected-file diff is inefficient and doesn't show you
417
TODO: This probably handles non-Unix newlines poorly.
420
takes_args = ['file*']
421
takes_options = ['revision']
423
def run(self, revision=None, file_list=None):
424
from bzrlib.diff import show_diff
426
show_diff(Branch('.'), revision, file_list)
429
class cmd_deleted(Command):
430
"""List files deleted in the working tree.
432
TODO: Show files deleted since a previous revision, or between two revisions.
434
def run(self, show_ids=False):
437
new = b.working_tree()
439
## TODO: Much more efficient way to do this: read in new
440
## directories with readdir, rather than stating each one. Same
441
## level of effort but possibly much less IO. (Or possibly not,
442
## if the directories are very large...)
444
for path, ie in old.inventory.iter_entries():
445
if not new.has_id(ie.file_id):
447
print '%-50s %s' % (path, ie.file_id)
451
class cmd_root(Command):
452
"""Show the tree root directory.
454
The root is the nearest enclosing directory with a .bzr control
456
takes_args = ['filename?']
457
def run(self, filename=None):
458
"""Print the branch root."""
459
print bzrlib.branch.find_branch_root(filename)
463
class cmd_log(Command):
464
"""Show log of this branch.
466
TODO: Options to show ids; to limit range; etc.
468
takes_options = ['timezone', 'verbose']
469
def run(self, timezone='original', verbose=False):
470
Branch('.').write_log(show_timezone=timezone, verbose=verbose)
473
class cmd_ls(Command):
474
"""List files in a tree.
476
TODO: Take a revision or remote path and list that tree instead.
479
def run(self, revision=None, verbose=False):
482
tree = b.working_tree()
484
tree = b.revision_tree(b.lookup_revision(revision))
486
for fp, fc, kind, fid in tree.list_files():
488
if kind == 'directory':
495
print '%-8s %s%s' % (fc, fp, kindch)
501
class cmd_unknowns(Command):
502
"""List unknown files"""
504
for f in Branch('.').unknowns():
509
class cmd_ignore(Command):
510
"""Ignore a command or pattern"""
511
takes_args = ['name_pattern']
513
def run(self, name_pattern):
516
# XXX: This will fail if it's a hardlink; should use an AtomicFile class.
517
f = open(b.abspath('.bzrignore'), 'at')
518
f.write(name_pattern + '\n')
521
inv = b.working_tree().inventory
522
if inv.path2id('.bzrignore'):
523
mutter('.bzrignore is already versioned')
525
mutter('need to make new .bzrignore file versioned')
526
b.add(['.bzrignore'])
530
class cmd_ignored(Command):
531
"""List ignored files and the patterns that matched them."""
533
tree = Branch('.').working_tree()
534
for path, file_class, kind, file_id in tree.list_files():
535
if file_class != 'I':
537
## XXX: Slightly inefficient since this was already calculated
538
pat = tree.is_ignored(path)
539
print '%-50s %s' % (path, pat)
542
class cmd_lookup_revision(Command):
543
"""Lookup the revision-id from a revision-number
546
bzr lookup-revision 33
549
def run(self, revno):
553
raise BzrError("not a valid revision-number: %r" % revno)
555
print Branch('.').lookup_revision(revno) or NONE_STRING
559
class cmd_export(Command):
560
"""Export past revision to destination directory.
562
If no revision is specified this exports the last committed revision."""
563
takes_args = ['dest']
564
takes_options = ['revision']
565
def run(self, dest, revno=None):
568
rh = b.revision_history[-1]
570
rh = b.lookup_revision(int(revno))
571
t = b.revision_tree(rh)
575
class cmd_cat(Command):
576
"""Write a file's text from a previous revision."""
578
takes_options = ['revision']
579
takes_args = ['filename']
581
def run(self, filename, revision=None):
583
raise BzrCommandError("bzr cat requires a revision number")
585
b.print_file(b.relpath(filename), int(revision))
588
class cmd_local_time_offset(Command):
589
"""Show the offset in seconds from GMT to local time."""
592
print bzrlib.osutils.local_time_offset()
596
class cmd_commit(Command):
597
"""Commit changes into a new revision.
599
TODO: Commit only selected files.
601
TODO: Run hooks on tree to-be-committed, and after commit.
603
TODO: Strict commit that fails if there are unknown or deleted files.
605
takes_options = ['message', 'verbose']
607
def run(self, message=None, verbose=False):
609
raise BzrCommandError("please specify a commit message")
610
Branch('.').commit(message, verbose=verbose)
613
class cmd_check(Command):
614
"""Validate consistency of branch history.
616
This command checks various invariants about the branch storage to
617
detect data corruption or bzr bugs.
619
takes_args = ['dir?']
620
def run(self, dir='.'):
622
bzrlib.check.check(Branch(dir, find_root=False))
626
class cmd_whoami(Command):
627
"""Show bzr user id."""
628
takes_options = ['email']
630
def run(self, email=False):
632
print bzrlib.osutils.user_email()
634
print bzrlib.osutils.username()
637
class cmd_selftest(Command):
638
"""Run internal test suite"""
641
failures, tests = 0, 0
643
import doctest, bzrlib.store, bzrlib.tests
644
bzrlib.trace.verbose = False
646
for m in bzrlib.store, bzrlib.inventory, bzrlib.branch, bzrlib.osutils, \
647
bzrlib.tree, bzrlib.tests, bzrlib.commands, bzrlib.add:
648
mf, mt = doctest.testmod(m)
651
print '%-40s %3d tests' % (m.__name__, mt),
653
print '%3d FAILED!' % mf
657
print '%-40s %3d tests' % ('total', tests),
659
print '%3d FAILED!' % failures
665
class cmd_version(Command):
666
"""Show version of bzr"""
671
print "bzr (bazaar-ng) %s" % bzrlib.__version__
672
print bzrlib.__copyright__
673
print "http://bazaar-ng.org/"
675
print "bzr comes with ABSOLUTELY NO WARRANTY. bzr is free software, and"
676
print "you may use, modify and redistribute it under the terms of the GNU"
677
print "General Public License version 2 or later."
680
class cmd_rocks(Command):
681
"""Statement of optimism."""
684
print "it sure does!"
687
class cmd_assert_fail(Command):
688
"""Test reporting of assertion failures"""
691
assert False, "always fails"
694
class cmd_help(Command):
695
"""Show help on a command or other topic.
697
For a list of all available commands, say 'bzr help commands'."""
698
takes_args = ['topic?']
700
def run(self, topic=None):
704
def help(topic=None):
707
elif topic == 'commands':
710
help_on_command(topic)
713
def help_on_command(cmdname):
714
cmdname = str(cmdname)
716
from inspect import getdoc
717
topic, cmdclass = get_cmd_class(cmdname)
719
doc = getdoc(cmdclass)
721
raise NotImplementedError("sorry, no detailed help yet for %r" % cmdname)
724
short, rest = doc.split('\n', 1)
729
print 'usage: bzr ' + topic,
730
for aname in cmdclass.takes_args:
731
aname = aname.upper()
732
if aname[-1] in ['$', '+']:
733
aname = aname[:-1] + '...'
734
elif aname[-1] == '?':
735
aname = '[' + aname[:-1] + ']'
736
elif aname[-1] == '*':
737
aname = '[' + aname[:-1] + '...]'
744
if cmdclass.takes_options:
747
for on in cmdclass.takes_options:
752
"""List all commands"""
756
for k, v in globals().items():
757
if k.startswith('cmd_'):
758
accu.append((k[4:].replace('_','-'), v))
760
for cmdname, cmdclass in accu:
764
help = inspect.getdoc(cmdclass)
766
print " " + help.split('\n', 1)[0]
769
######################################################################
773
# list of all available options; the rhs can be either None for an
774
# option that takes no argument, or a constructor function that checks
796
def parse_args(argv):
794
797
"""Parse command line.
796
799
Arguments and options are parsed at this level before being passed
797
800
down to specific command handlers. This routine knows, from a
798
801
lookup table, something about the available options, what optargs
799
802
they take, and which commands will accept them.
804
>>> parse_args('--help'.split())
806
>>> parse_args('--version'.split())
807
([], {'version': True})
808
>>> parse_args('status --all'.split())
809
(['status'], {'all': True})
810
>>> parse_args('commit --message=biter'.split())
811
(['commit'], {'message': u'biter'})
801
# TODO: make it a method of the Command?
802
parser = option.get_optparser(command.options())
803
if alias_argv is not None:
804
args = alias_argv + argv
808
options, args = parser.parse_args(args)
809
opts = dict([(k, v) for k, v in options.__dict__.iteritems() if
810
v is not option.OptionParser.DEFAULT_VALUE])
816
# TODO: Maybe handle '--' to end options?
821
# option names must not be unicode
825
mutter(" got option %r" % a)
827
optname, optarg = a[2:].split('=', 1)
830
if optname not in OPTIONS:
831
bailout('unknown long option %r' % a)
834
if shortopt not in SHORT_OPTIONS:
835
bailout('unknown short option %r' % a)
836
optname = SHORT_OPTIONS[shortopt]
839
# XXX: Do we ever want to support this, e.g. for -r?
840
bailout('repeated option %r' % a)
842
optargfn = OPTIONS[optname]
846
bailout('option %r needs an argument' % a)
849
opts[optname] = optargfn(optarg)
852
bailout('option %r takes no argument' % optname)
811
857
return args, opts
814
862
def _match_argform(cmd, takes_args, args):
828
876
argdict[argname + '_list'] = None
829
877
elif ap[-1] == '+':
831
raise errors.BzrCommandError("command %r needs one or more %s"
832
% (cmd, argname.upper()))
879
raise BzrCommandError("command %r needs one or more %s"
880
% (cmd, argname.upper()))
834
882
argdict[argname + '_list'] = args[:]
836
884
elif ap[-1] == '$': # all but one
837
885
if len(args) < 2:
838
raise errors.BzrCommandError("command %r needs one or more %s"
839
% (cmd, argname.upper()))
886
raise BzrCommandError("command %r needs one or more %s"
887
% (cmd, argname.upper()))
840
888
argdict[argname + '_list'] = args[:-1]
843
891
# just a plain arg
846
raise errors.BzrCommandError("command %r requires argument %s"
847
% (cmd, argname.upper()))
894
raise BzrCommandError("command %r requires argument %s"
895
% (cmd, argname.upper()))
849
897
argdict[argname] = args.pop(0)
852
raise errors.BzrCommandError("extra argument to command %s: %s"
900
raise BzrCommandError("extra argument to command %s: %s"
857
def apply_coveraged(dirname, the_callable, *args, **kwargs):
858
# Cannot use "import trace", as that would import bzrlib.trace instead of
859
# the standard library's trace.
860
trace = __import__('trace')
862
tracer = trace.Trace(count=1, trace=0)
863
sys.settrace(tracer.globaltrace)
864
threading.settrace(tracer.globaltrace)
867
return exception_to_return_code(the_callable, *args, **kwargs)
870
results = tracer.results()
871
results.write_results(show_missing=1, summary=False,
875
def apply_profiled(the_callable, *args, **kwargs):
879
pffileno, pfname = tempfile.mkstemp()
881
prof = hotshot.Profile(pfname)
908
"""Execute a command.
910
This is similar to main(), but without all the trappings for
911
logging and error handling.
914
argv = [a.decode(bzrlib.user_encoding) for a in argv]
917
args, opts = parse_args(argv[1:])
924
elif 'version' in opts:
927
cmd = str(args.pop(0))
929
log_error('usage: bzr COMMAND')
930
log_error(' try "bzr help"')
933
canonical_cmd, cmd_class = get_cmd_class(cmd)
936
if 'profile' in opts:
942
# check options are reasonable
943
allowed = cmd_class.takes_options
945
if oname not in allowed:
946
raise BzrCommandError("option %r is not allowed for command %r"
949
# mix arguments and options into one dictionary
950
cmdargs = _match_argform(cmd, cmd_class.takes_args, args)
952
for k, v in opts.items():
953
cmdopts[k.replace('-', '_')] = v
957
pffileno, pfname = tempfile.mkstemp()
883
ret = prof.runcall(exception_to_return_code, the_callable, *args,
959
prof = hotshot.Profile(pfname)
960
ret = prof.runcall(cmd_class, cmdopts, cmdargs) or 0
964
stats = hotshot.stats.load(pfname)
966
stats.sort_stats('time')
967
## XXX: Might like to write to stderr or the trace file instead but
968
## print_stats seems hardcoded to stdout
969
stats.print_stats(20)
887
stats = hotshot.stats.load(pfname)
889
stats.sort_stats('cum') # 'time'
890
## XXX: Might like to write to stderr or the trace file instead but
891
## print_stats seems hardcoded to stdout
892
stats.print_stats(20)
899
def exception_to_return_code(the_callable, *args, **kwargs):
900
"""UI level helper for profiling and coverage.
902
This transforms exceptions into a return value of 3. As such its only
903
relevant to the UI layer, and should never be called where catching
904
exceptions may be desirable.
907
return the_callable(*args, **kwargs)
908
except (KeyboardInterrupt, Exception), e:
909
# used to handle AssertionError and KeyboardInterrupt
910
# specially here, but hopefully they're handled ok by the logger now
911
exc_info = sys.exc_info()
912
exitcode = trace.report_exception(exc_info, sys.stderr)
913
if os.environ.get('BZR_PDB'):
914
print '**** entering debugger'
917
if sys.version_info[:2] < (2, 6):
919
# pdb.post_mortem(tb)
920
# but because pdb.post_mortem gives bad results for tracebacks
921
# from inside generators, we do it manually.
922
# (http://bugs.python.org/issue4150, fixed in Python 2.6)
924
# Setup pdb on the traceback
927
p.setup(tb.tb_frame, tb)
928
# Point the debugger at the deepest frame of the stack
929
p.curindex = len(p.stack) - 1
930
p.curframe = p.stack[p.curindex][0]
931
# Start the pdb prompt.
932
p.print_stack_entry(p.stack[p.curindex])
940
def apply_lsprofiled(filename, the_callable, *args, **kwargs):
941
from bzrlib.lsprof import profile
942
ret, stats = profile(exception_to_return_code, the_callable, *args, **kwargs)
948
trace.note('Profile data written to "%s".', filename)
952
@deprecated_function(deprecated_in((2, 2, 0)))
953
def shlex_split_unicode(unsplit):
954
return cmdline.split(unsplit)
957
def get_alias(cmd, config=None):
958
"""Return an expanded alias, or None if no alias exists.
961
Command to be checked for an alias.
963
Used to specify an alternative config to use,
964
which is especially useful for testing.
965
If it is unspecified, the global config will be used.
969
config = bzrlib.config.GlobalConfig()
970
alias = config.get_alias(cmd)
972
return cmdline.split(alias)
976
def run_bzr(argv, load_plugins=load_plugins, disable_plugins=disable_plugins):
977
"""Execute a command.
979
:param argv: The command-line arguments, without the program name from
980
argv[0] These should already be decoded. All library/test code calling
981
run_bzr should be passing valid strings (don't need decoding).
982
:param load_plugins: What function to call when triggering plugin loading.
983
This function should take no arguments and cause all plugins to be
985
:param disable_plugins: What function to call when disabling plugin
986
loading. This function should take no arguments and cause all plugin
987
loading to be prohibited (so that code paths in your application that
988
know about some plugins possibly being present will fail to import
989
those plugins even if they are installed.)
990
:return: Returns a command exit code or raises an exception.
992
Special master options: these must come before the command because
993
they control how the command is interpreted.
996
Do not load plugin modules at all
1002
Only use builtin commands. (Plugins are still allowed to change
1006
Run under the Python hotshot profiler.
1009
Run under the Python lsprof profiler.
1012
Generate line coverage report in the specified directory.
1015
Specify the number of processes that can be run concurrently (selftest).
1017
trace.mutter("bazaar version: " + bzrlib.__version__)
1019
trace.mutter("bzr arguments: %r", argv)
1021
opt_lsprof = opt_profile = opt_no_plugins = opt_builtin = \
1022
opt_no_aliases = False
1023
opt_lsprof_file = opt_coverage_dir = None
1025
# --no-plugins is handled specially at a very early stage. We need
1026
# to load plugins before doing other command parsing so that they
1027
# can override commands, but this needs to happen first.
1031
while i < len(argv):
1033
if a == '--profile':
1035
elif a == '--lsprof':
1037
elif a == '--lsprof-file':
1039
opt_lsprof_file = argv[i + 1]
1041
elif a == '--no-plugins':
1042
opt_no_plugins = True
1043
elif a == '--no-aliases':
1044
opt_no_aliases = True
1045
elif a == '--builtin':
1047
elif a == '--concurrency':
1048
os.environ['BZR_CONCURRENCY'] = argv[i + 1]
1050
elif a == '--coverage':
1051
opt_coverage_dir = argv[i + 1]
1053
elif a.startswith('-D'):
1054
debug.debug_flags.add(a[2:])
1059
debug.set_debug_flags_from_config()
1061
if not opt_no_plugins:
1068
get_cmd_object('help').run_argv_aliases([])
1071
if argv[0] == '--version':
1072
get_cmd_object('version').run_argv_aliases([])
1077
if not opt_no_aliases:
1078
alias_argv = get_alias(argv[0])
1080
user_encoding = osutils.get_user_encoding()
1081
alias_argv = [a.decode(user_encoding) for a in alias_argv]
1082
argv[0] = alias_argv.pop(0)
1085
# We want only 'ascii' command names, but the user may have typed
1086
# in a Unicode name. In that case, they should just get a
1087
# 'command not found' error later.
1089
cmd_obj = get_cmd_object(cmd, plugins_override=not opt_builtin)
1090
run = cmd_obj.run_argv_aliases
1091
run_argv = [argv, alias_argv]
1094
# We can be called recursively (tests for example), but we don't want
1095
# the verbosity level to propagate.
1096
saved_verbosity_level = option._verbosity_level
1097
option._verbosity_level = 0
1099
if opt_coverage_dir:
1101
'--coverage ignored, because --lsprof is in use.')
1102
ret = apply_lsprofiled(opt_lsprof_file, run, *run_argv)
1104
if opt_coverage_dir:
1106
'--coverage ignored, because --profile is in use.')
1107
ret = apply_profiled(run, *run_argv)
1108
elif opt_coverage_dir:
1109
ret = apply_coveraged(opt_coverage_dir, run, *run_argv)
1111
ret = run(*run_argv)
1114
# reset, in case we may do other commands later within the same
1115
# process. Commands that want to execute sub-commands must propagate
1116
# --verbose in their own way.
1117
if 'memory' in debug.debug_flags:
1118
trace.debug_memory('Process status after command:', short=False)
1119
option._verbosity_level = saved_verbosity_level
1122
def display_command(func):
1123
"""Decorator that suppresses pipe/interrupt errors."""
1124
def ignore_pipe(*args, **kwargs):
977
cmdobj = cmd_class(cmdopts, cmdargs) or 0
981
def _report_exception(e, summary, quiet=False):
983
log_error('bzr: ' + summary)
984
bzrlib.trace.log_exception(e)
987
tb = sys.exc_info()[2]
988
exinfo = traceback.extract_tb(tb)
990
sys.stderr.write(' at %s:%d in %s()\n' % exinfo[-1][:3])
991
sys.stderr.write(' see ~/.bzr.log for debug information\n')
998
bzrlib.trace.create_tracefile(argv)
1126
result = func(*args, **kwargs)
1003
# do this here to catch EPIPE
1127
1004
sys.stdout.flush()
1130
if getattr(e, 'errno', None) is None:
1132
if e.errno != errno.EPIPE:
1133
# Win32 raises IOError with errno=0 on a broken pipe
1134
if sys.platform != 'win32' or (e.errno not in (0, errno.EINVAL)):
1137
except KeyboardInterrupt:
1142
def install_bzr_command_hooks():
1143
"""Install the hooks to supply bzr's own commands."""
1144
if _list_bzr_commands in Command.hooks["list_commands"]:
1146
Command.hooks.install_named_hook("list_commands", _list_bzr_commands,
1148
Command.hooks.install_named_hook("get_command", _get_bzr_command,
1150
Command.hooks.install_named_hook("get_command", _get_plugin_command,
1151
"bzr plugin commands")
1152
Command.hooks.install_named_hook("get_command", _get_external_command,
1153
"bzr external command lookup")
1154
Command.hooks.install_named_hook("get_missing_command", _try_plugin_provider,
1155
"bzr plugin-provider-db check")
1159
def _specified_or_unicode_argv(argv):
1160
# For internal or testing use, argv can be passed. Otherwise, get it from
1161
# the process arguments in a unicode-safe way.
1163
return osutils.get_unicode_argv()
1167
# ensure all arguments are unicode strings
1169
if isinstance(a, unicode):
1172
new_argv.append(a.decode('ascii'))
1173
except UnicodeDecodeError:
1174
raise errors.BzrError("argv should be list of unicode strings.")
1178
def main(argv=None):
1179
"""Main entry point of command-line interface.
1181
Typically `bzrlib.initialize` should be called first.
1183
:param argv: list of unicode command-line arguments similar to sys.argv.
1184
argv[0] is script name usually, it will be ignored.
1185
Don't pass here sys.argv because this list contains plain strings
1186
and not unicode; pass None instead.
1188
:return: exit code of bzr command.
1190
argv = _specified_or_unicode_argv(argv)
1191
_register_builtin_commands()
1192
ret = run_bzr_catch_errors(argv)
1193
bzrlib.ui.ui_factory.log_transport_activity(
1194
display=('bytes' in debug.debug_flags))
1195
trace.mutter("return code %d", ret)
1199
def run_bzr_catch_errors(argv):
1200
"""Run a bzr command with parameters as described by argv.
1202
This function assumed that that UI layer is setup, that symbol deprecations
1203
are already applied, and that unicode decoding has already been performed on argv.
1205
# done here so that they're covered for every test run
1206
install_bzr_command_hooks()
1207
return exception_to_return_code(run_bzr, argv)
1210
def run_bzr_catch_user_errors(argv):
1211
"""Run bzr and report user errors, but let internal errors propagate.
1213
This is used for the test suite, and might be useful for other programs
1214
that want to wrap the commandline interface.
1216
# done here so that they're covered for every test run
1217
install_bzr_command_hooks()
1219
return run_bzr(argv)
1220
except Exception, e:
1221
if (isinstance(e, (OSError, IOError))
1222
or not getattr(e, 'internal_error', True)):
1223
trace.report_exception(sys.exc_info(), sys.stderr)
1229
class HelpCommandIndex(object):
1230
"""A index for bzr help that returns commands."""
1233
self.prefix = 'commands/'
1235
def get_topics(self, topic):
1236
"""Search for topic amongst commands.
1238
:param topic: A topic to search for.
1239
:return: A list which is either empty or contains a single
1242
if topic and topic.startswith(self.prefix):
1243
topic = topic[len(self.prefix):]
1245
cmd = _get_cmd_object(topic, check_missing=False)
1252
class Provider(object):
1253
'''Generic class to be overriden by plugins'''
1255
def plugin_for_command(self, cmd_name):
1256
'''Takes a command and returns the information for that plugin
1258
:return: A dictionary with all the available information
1259
for the requested plugin
1261
raise NotImplementedError
1264
class ProvidersRegistry(registry.Registry):
1265
'''This registry exists to allow other providers to exist'''
1268
for key, provider in self.iteritems():
1271
command_providers_registry = ProvidersRegistry()
1007
quiet = isinstance(e, (BzrCommandError))
1008
_report_exception(e, 'error: ' + e.args[0], quiet=quiet)
1011
# some explanation or hints
1014
except AssertionError, e:
1015
msg = 'assertion failed'
1017
msg += ': ' + str(e)
1018
_report_exception(e, msg)
1020
except KeyboardInterrupt, e:
1021
_report_exception(e, 'interrupted', quiet=True)
1023
except Exception, e:
1025
if isinstance(e, IOError) and e.errno == errno.EPIPE:
1029
msg = str(e).rstrip('\n')
1030
_report_exception(e, msg, quiet)
1033
bzrlib.trace.close_trace()
1036
if __name__ == '__main__':
1037
sys.exit(main(sys.argv))
added
removed
bzrlib/commands.py
