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# Copyright (C) 2005-2011 Canonical Ltd
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# Copyright (C) 2004, 2005 by Martin Pool
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# Copyright (C) 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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# 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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Current limitation include:
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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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* Insufficient error handling.
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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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Interesting commands::
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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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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 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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import sys, os, random, time, sha, sets, types, re, shutil, tempfile
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import traceback, socket, fnmatch, difflib
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from pprint import pprint
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from bzrlib.hooks import 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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_register_builtin_commands()
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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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if getattr(cmd, 'invoked_as', None) is None:
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cmd.invoked_as = cmd_name
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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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"""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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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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A string indicating the real name under which this command was
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invoked, before expansion of aliases.
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(This may be None if the command was constructed and run in-process.)
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:cvar hooks: An instance of CommandHooks.
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:ivar __doc__: The help shown by 'bzr help command' for this command.
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This is set by assigning explicitly to __doc__ so that -OO can
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__doc__ = "My help goes here"
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encoding_type = 'strict'
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"""Construct an instance of this command."""
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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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doc = "No help for this command."
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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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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
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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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## TODO: Perhaps a different version of inventory commands that
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## returns iterators...
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## TODO: Perhaps an AtomicFile class that writes to a temporary file and then renames.
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## TODO: Some kind of locking on branches. Perhaps there should be a
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## parameter to the branch object saying whether we want a read or
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## write lock; release it from destructor. Perhaps don't even need a
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## read lock to look at immutable objects?
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## TODO: Perhaps make UUIDs predictable in test mode to make it easier
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## to compare output?
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## TODO: Some kind of global code to generate the right Branch object
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## to work on. Almost, but not quite all, commands need one, and it
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## can be taken either from their parameters or their working
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## TODO: rename command, needed soon: check destination doesn't exist
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## either in working copy or tree; move working copy; update
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## inventory; write out
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## TODO: move command; check destination is a directory and will not
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## TODO: command to show renames, one per line, as to->from
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def cmd_status(all=False):
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"""Display status summary.
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For each file there is a single line giving its file state and name.
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The name is that in the current revision unless it is deleted or
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missing, in which case the old name is shown.
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:todo: Don't show unchanged files unless ``--all`` is given?
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Branch('.').show_status(show_all=all)
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######################################################################
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def cmd_get_revision(revision_id):
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Branch('.').get_revision(revision_id).write_xml(sys.stdout)
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def cmd_get_file_text(text_id):
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"""Get contents of a file by hash."""
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sf = Branch('.').text_store[text_id]
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pumpfile(sf, sys.stdout)
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######################################################################
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"""Show number of revisions on this branch"""
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print Branch('.').revno()
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def cmd_add(file_list, verbose=False):
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"""Add specified files or directories.
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In non-recursive mode, all the named items are added, regardless
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of whether they were previously ignored. A warning is given if
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any of the named files are already versioned.
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In recursive mode (the default), files are treated the same way
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but the behaviour for directories is different. Directories that
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are already versioned do not give a warning. All directories,
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whether already versioned or not, are searched for files or
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subdirectories that are neither versioned or ignored, and these
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are added. This search proceeds recursively into versioned
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Therefore simply saying 'bzr add .' will version all files that
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are currently unknown.
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bzrlib.add.smart_add(file_list, verbose)
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def cmd_relpath(filename):
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"""Show path of file relative to root"""
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print Branch(filename).relpath(filename)
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def cmd_inventory(revision=None):
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"""Show inventory of the current working copy."""
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## TODO: Also optionally show a previous inventory
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## TODO: Format options
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inv = b.read_working_inventory()
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inv = b.get_revision_inventory(b.lookup_revision(revision))
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for path, entry in inv.iter_entries():
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print '%-50s %s' % (entry.file_id, path)
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"""info: Show statistical information for this branch
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info.show_info(Branch('.'))
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def cmd_remove(file_list, verbose=False):
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b = Branch(file_list[0])
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b.remove([b.relpath(f) for f in file_list], verbose=verbose)
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def cmd_file_id(filename):
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i = b.inventory.path2id(b.relpath(filename))
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bailout("%s is not a versioned file" % filename)
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def cmd_find_filename(fileid):
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n = find_filename(fileid)
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bailout("%s is not a live file id" % fileid)
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def cmd_revision_history():
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for patchid in Branch('.').revision_history():
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# TODO: Check we're not already in a working directory? At the
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# moment you'll get an ugly error.
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# TODO: What if we're in a subdirectory of a branch? Would like
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# to allow that, but then the parent may need to understand that
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# the children have disappeared, or should they be versioned in
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# TODO: Take an argument/option for branch name.
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Branch('.', init=True)
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def cmd_diff(revision=None):
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"""bzr diff: Show differences in working tree.
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usage: bzr diff [-r REV]
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Show changes since REV, rather than predecessor.
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TODO: Given two revision arguments, show the difference between them.
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TODO: Allow diff across branches.
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TODO: Option to use external diff command; could be GNU diff, wdiff,
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TODO: Diff selected files.
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## TODO: Shouldn't be in the cmd function.
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old_tree = b.basis_tree()
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old_tree = b.revision_tree(b.lookup_revision(revision))
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new_tree = b.working_tree()
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old_inv = old_tree.inventory
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new_inv = new_tree.inventory
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# TODO: Options to control putting on a prefix or suffix, perhaps as a format string
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DEVNULL = '/dev/null'
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# Windows users, don't panic about this filename -- it is a
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# special signal to GNU patch that the file should be created or
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# deleted respectively.
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# TODO: Generation of pseudo-diffs for added/deleted files could
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# be usefully made into a much faster special case.
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# TODO: Better to return them in sorted order I think.
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for file_state, fid, old_name, new_name, kind in bzrlib.diff_trees(old_tree, new_tree):
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# Don't show this by default; maybe do it if an option is passed
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# idlabel = ' {%s}' % fid
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# FIXME: Something about the diff format makes patch unhappy
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# with newly-added files.
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def diffit(*a, **kw):
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sys.stdout.writelines(difflib.unified_diff(*a, **kw))
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if file_state in ['.', '?', 'I']:
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elif file_state == 'A':
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print '*** added %s %r' % (kind, new_name)
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new_tree.get_file(fid).readlines(),
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tofile=new_label + new_name + idlabel)
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elif file_state == 'D':
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assert isinstance(old_name, types.StringTypes)
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print '*** deleted %s %r' % (kind, old_name)
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diffit(old_tree.get_file(fid).readlines(), [],
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fromfile=old_label + old_name + idlabel,
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elif file_state in ['M', 'R']:
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if file_state == 'M':
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assert kind == 'file'
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assert old_name == new_name
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print '*** modified %s %r' % (kind, new_name)
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elif file_state == 'R':
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print '*** renamed %s %r => %r' % (kind, old_name, new_name)
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diffit(old_tree.get_file(fid).readlines(),
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new_tree.get_file(fid).readlines(),
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fromfile=old_label + old_name + idlabel,
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tofile=new_label + new_name)
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bailout("can't represent state %s {%s}" % (file_state, fid))
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def cmd_root(filename=None):
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"""Print the branch root."""
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print bzrlib.branch.find_branch_root(filename)
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def cmd_log(timezone='original'):
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"""Show log of this branch.
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:todo: Options for utc; to show ids; to limit range; etc.
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Branch('.').write_log(show_timezone=timezone)
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def cmd_ls(revision=None, verbose=False):
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"""List files in a tree.
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:todo: Take a revision or remote path and list that tree instead.
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tree = b.working_tree()
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tree = b.revision_tree(b.lookup_revision(revision))
366
for fp, fc, kind, fid in tree.list_files():
540
# Add the description, indenting it 2 spaces
541
# to match the indentation of the options
542
if sections.has_key(None):
543
text = sections.pop(None)
544
text = '\n '.join(text.splitlines())
545
result += ':%s:\n %s\n\n' % ('Description',text)
547
# Add the custom sections (e.g. Examples). Note that there's no need
548
# to indent these as they must be indented already in the source.
551
if sections.has_key(label):
552
result += ':%s:\n%s\n' % (label,sections[label])
555
result += ("See bzr help %s for more details and examples.\n\n"
558
# Add the aliases, source (plug-in) and see also links, if any
560
result += ':Aliases: '
561
result += ', '.join(self.aliases) + '\n'
562
plugin_name = self.plugin_name()
563
if plugin_name is not None:
564
result += ':From: plugin "%s"\n' % plugin_name
565
see_also = self.get_see_also(additional_see_also)
567
if not plain and see_also_as_links:
569
for item in see_also:
571
# topics doesn't have an independent section
572
# so don't create a real link
573
see_also_links.append(item)
575
# Use a Sphinx link for this entry
576
link_text = ":doc:`%s <%s-help>`" % (item, item)
577
see_also_links.append(link_text)
578
see_also = see_also_links
579
result += ':See also: '
580
result += ', '.join(see_also) + '\n'
582
# If this will be rendered as plain text, convert it
584
import bzrlib.help_topics
585
result = bzrlib.help_topics.help_as_plain_text(result)
589
def _get_help_parts(text):
590
"""Split help text into a summary and named sections.
592
:return: (summary,sections,order) where summary is the top line and
593
sections is a dictionary of the rest indexed by section name.
594
order is the order the section appear in the text.
595
A section starts with a heading line of the form ":xxx:".
596
Indented text on following lines is the section value.
597
All text found outside a named section is assigned to the
598
default section which is given the key of None.
600
def save_section(sections, order, label, section):
602
if sections.has_key(label):
603
sections[label] += '\n' + section
606
sections[label] = section
608
lines = text.rstrip().splitlines()
609
summary = lines.pop(0)
612
label,section = None,''
614
if line.startswith(':') and line.endswith(':') and len(line) > 2:
615
save_section(sections, order, label, section)
616
label,section = line[1:-1],''
617
elif (label is not None) and len(line) > 1 and not line[0].isspace():
618
save_section(sections, order, label, section)
619
label,section = None,line
368
if kind == 'directory':
622
section += '\n' + line
625
save_section(sections, order, label, section)
626
return summary, sections, order
628
def get_help_topic(self):
629
"""Return the commands help topic - its name."""
632
def get_see_also(self, additional_terms=None):
633
"""Return a list of help topics that are related to this command.
635
The list is derived from the content of the _see_also attribute. Any
636
duplicates are removed and the result is in lexical order.
637
:param additional_terms: Additional help topics to cross-reference.
638
:return: A list of help topics.
640
see_also = set(getattr(self, '_see_also', []))
642
see_also.update(additional_terms)
643
return sorted(see_also)
646
"""Return dict of valid options for this command.
648
Maps from long option name to option object."""
649
r = Option.STD_OPTIONS.copy()
651
for o in self.takes_options:
652
if isinstance(o, basestring):
653
o = option.Option.OPTIONS[o]
655
if o.name in std_names:
656
self.supported_std_options.append(o.name)
659
def _setup_outf(self):
660
"""Return a file linked to stdout, which has proper encoding."""
661
self.outf = ui.ui_factory.make_output_stream(
662
encoding_type=self.encoding_type)
664
def run_argv_aliases(self, argv, alias_argv=None):
665
"""Parse the command line and run with extra aliases in alias_argv."""
666
args, opts = parse_args(self, argv, alias_argv)
668
# Process the standard options
669
if 'help' in opts: # e.g. bzr add --help
670
sys.stdout.write(self.get_help_text())
672
if 'usage' in opts: # e.g. bzr add --usage
673
sys.stdout.write(self.get_help_text(verbose=False))
675
trace.set_verbosity_level(option._verbosity_level)
676
if 'verbose' in self.supported_std_options:
677
opts['verbose'] = trace.is_verbose()
678
elif opts.has_key('verbose'):
680
if 'quiet' in self.supported_std_options:
681
opts['quiet'] = trace.is_quiet()
682
elif opts.has_key('quiet'):
685
# mix arguments and options into one dictionary
686
cmdargs = _match_argform(self.name(), self.takes_args, args)
688
for k, v in opts.items():
689
cmdopts[k.replace('-', '_')] = v
691
all_cmd_args = cmdargs.copy()
692
all_cmd_args.update(cmdopts)
697
return self.run(**all_cmd_args)
699
# reset it, so that other commands run in the same process won't
700
# inherit state. Before we reset it, log any activity, so that it
701
# gets properly tracked.
702
ui.ui_factory.log_transport_activity(
703
display=('bytes' in debug.debug_flags))
704
trace.set_verbosity_level(0)
706
def _setup_run(self):
707
"""Wrap the defined run method on self with a cleanup.
709
This is called by __init__ to make the Command be able to be run
710
by just calling run(), as it could be before cleanups were added.
712
If a different form of cleanups are in use by your Command subclass,
713
you can override this method.
716
def run(*args, **kwargs):
717
self._operation = cleanup.OperationWithCleanups(class_run)
719
return self._operation.run_simple(*args, **kwargs)
724
@deprecated_method(deprecated_in((2, 2, 0)))
725
def run_direct(self, *args, **kwargs):
726
"""Deprecated thunk from bzrlib 2.1."""
727
return self.run(*args, **kwargs)
730
"""Actually run the command.
732
This is invoked with the options and arguments bound to
735
Return 0 or None if the command was successful, or a non-zero
736
shell error code if not. It's OK for this method to allow
737
an exception to raise up.
739
This method is automatically wrapped by Command.__init__ with a
740
cleanup operation, stored as self._operation. This can be used
741
via self.add_cleanup to perform automatic cleanups at the end of
744
The argument for run are assembled by introspection. So for instance,
745
if your command takes an argument files, you would declare::
747
def run(self, files=None):
750
raise NotImplementedError('no implementation of command %r'
754
"""Return help message for this class."""
755
from inspect import getdoc
756
if self.__doc__ is Command.__doc__:
761
"""Return the canonical name for this command.
763
The name under which it was actually invoked is available in invoked_as.
765
return _unsquish_command_name(self.__class__.__name__)
767
def plugin_name(self):
768
"""Get the name of the plugin that provides this command.
770
:return: The name of the plugin or None if the command is builtin.
772
mod_parts = self.__module__.split('.')
773
if len(mod_parts) >= 3 and mod_parts[1] == 'plugins':
779
class CommandHooks(Hooks):
780
"""Hooks related to Command object creation/enumeration."""
783
"""Create the default hooks.
785
These are all empty initially, because by default nothing should get
788
Hooks.__init__(self, "bzrlib.commands", "Command.hooks")
789
self.add_hook('extend_command',
790
"Called after creating a command object to allow modifications "
791
"such as adding or removing options, docs etc. Called with the "
792
"new bzrlib.commands.Command object.", (1, 13))
793
self.add_hook('get_command',
794
"Called when creating a single command. Called with "
795
"(cmd_or_None, command_name). get_command should either return "
796
"the cmd_or_None parameter, or a replacement Command object that "
797
"should be used for the command. Note that the Command.hooks "
798
"hooks are core infrastructure. Many users will prefer to use "
799
"bzrlib.commands.register_command or plugin_cmds.register_lazy.",
801
self.add_hook('get_missing_command',
802
"Called when creating a single command if no command could be "
803
"found. Called with (command_name). get_missing_command should "
804
"either return None, or a Command object to be used for the "
806
self.add_hook('list_commands',
807
"Called when enumerating commands. Called with a set of "
808
"cmd_name strings for all the commands found so far. This set "
809
" is safe to mutate - e.g. to remove a command. "
810
"list_commands should return the updated set of command names.",
813
Command.hooks = CommandHooks()
816
def parse_args(command, argv, alias_argv=None):
375
print '%-8s %s%s' % (fc, fp, kindch)
382
"""List unknown files"""
383
for f in Branch('.').unknowns():
387
def cmd_lookup_revision(revno):
391
bailout("usage: lookup-revision REVNO",
392
["REVNO is a non-negative revision number for this branch"])
394
print Branch('.').lookup_revision(revno) or NONE_STRING
398
def cmd_export(revno, dest):
399
"""Export past revision to destination directory."""
401
rh = b.lookup_revision(int(revno))
402
t = b.revision_tree(rh)
407
######################################################################
408
# internal/test commands
412
"""Print a newly-generated UUID."""
413
print bzrlib.osutils.uuid()
417
def cmd_local_time_offset():
418
print bzrlib.osutils.local_time_offset()
422
def cmd_commit(message=None, verbose=False):
423
"""Commit changes to a new revision.
426
Description of changes in this revision; free form text.
427
It is recommended that the first line be a single-sentence
430
Show status of changed files,
432
TODO: Commit only selected files.
434
TODO: Run hooks on tree to-be-committed, and after commit.
436
TODO: Strict commit that fails if there are unknown or deleted files.
440
bailout("please specify a commit message")
441
Branch('.').commit(message, verbose=verbose)
444
def cmd_check(dir='.'):
445
"""check: Consistency check of branch history.
447
usage: bzr check [-v] [BRANCH]
450
--verbose, -v Show progress of checking.
452
This command checks various invariants about the branch storage to
453
detect data corruption or bzr bugs.
456
bzrlib.check.check(Branch(dir, find_root=False))
459
def cmd_is(pred, *rest):
460
"""Test whether PREDICATE is true."""
462
cmd_handler = globals()['assert_' + pred.replace('-', '_')]
464
bailout("unknown predicate: %s" % quotefn(pred))
468
except BzrCheckError:
469
# by default we don't print the message so that this can
470
# be used from shell scripts without producing noise
475
print bzrlib.osutils.username()
478
def cmd_user_email():
479
print bzrlib.osutils.user_email()
482
def cmd_gen_revision_id():
484
print bzrlib.branch._gen_revision_id(time.time())
487
def cmd_selftest(verbose=False):
488
"""Run internal test suite"""
489
## -v, if present, is seen by doctest; the argument is just here
490
## so our parser doesn't complain
492
## TODO: --verbose option
494
failures, tests = 0, 0
496
import doctest, bzrlib.store, bzrlib.tests
497
bzrlib.trace.verbose = False
499
for m in bzrlib.store, bzrlib.inventory, bzrlib.branch, bzrlib.osutils, \
500
bzrlib.tree, bzrlib.tests, bzrlib.commands, bzrlib.add:
501
mf, mt = doctest.testmod(m)
504
print '%-40s %3d tests' % (m.__name__, mt),
506
print '%3d FAILED!' % mf
510
print '%-40s %3d tests' % ('total', tests),
512
print '%3d FAILED!' % failures
519
cmd_doctest = cmd_selftest
522
######################################################################
526
def cmd_help(topic=None):
531
# otherwise, maybe the name of a command?
533
cmdfn = globals()['cmd_' + topic.replace('-', '_')]
535
bailout("no help for %r" % topic)
539
bailout("sorry, no detailed help yet for %r" % topic)
547
print "bzr (bazaar-ng) %s" % bzrlib.__version__
548
print bzrlib.__copyright__
549
print "http://bazaar-ng.org/"
552
"""bzr comes with ABSOLUTELY NO WARRANTY. bzr is free software, and
553
you may use, modify and redistribute it under the terms of the GNU
554
General Public License version 2 or later."""
558
"""Statement of optimism."""
559
print "it sure does!"
563
######################################################################
567
# list of all available options; the rhs can be either None for an
568
# option that takes no argument, or a constructor function that checks
587
# List of options that apply to particular commands; commands not
591
'commit': ['message', 'verbose'],
592
'diff': ['revision'],
593
'inventory': ['revision'],
594
'log': ['show-ids', 'timezone'],
595
'ls': ['revision', 'verbose'],
596
'remove': ['verbose'],
605
'export': ['revno', 'dest'],
606
'file-id': ['filename'],
607
'get-file-text': ['text_id'],
608
'get-inventory': ['inventory_id'],
609
'get-revision': ['revision_id'],
610
'get-revision-inventory': ['revision_id'],
614
'lookup-revision': ['revno'],
615
'relpath': ['filename'],
617
'root': ['filename?'],
622
def parse_args(argv):
817
623
"""Parse command line.
819
625
Arguments and options are parsed at this level before being passed
820
626
down to specific command handlers. This routine knows, from a
821
627
lookup table, something about the available options, what optargs
822
628
they take, and which commands will accept them.
630
>>> parse_args('--help'.split())
632
>>> parse_args('--version'.split())
633
([], {'version': True})
634
>>> parse_args('status --all'.split())
635
(['status'], {'all': True})
636
>>> parse_args('commit --message=biter'.split())
637
(['commit'], {'message': u'biter'})
824
# TODO: make it a method of the Command?
825
parser = option.get_optparser(command.options())
826
if alias_argv is not None:
827
args = alias_argv + argv
831
# for python 2.5 and later, optparse raises this exception if a non-ascii
832
# option name is given. See http://bugs.python.org/issue2931
834
options, args = parser.parse_args(args)
835
except UnicodeEncodeError,e:
836
raise errors.BzrCommandError('Only ASCII permitted in option names')
838
opts = dict([(k, v) for k, v in options.__dict__.iteritems() if
839
v is not option.OptionParser.DEFAULT_VALUE])
642
# TODO: Maybe handle '--' to end options?
649
mutter(" got option %r" % a)
651
optname, optarg = a[2:].split('=', 1)
654
if optname not in OPTIONS:
655
bailout('unknown long option %r' % a)
658
if shortopt not in SHORT_OPTIONS:
659
bailout('unknown short option %r' % a)
660
optname = SHORT_OPTIONS[shortopt]
663
# XXX: Do we ever want to support this, e.g. for -r?
664
bailout('repeated option %r' % a)
666
optargfn = OPTIONS[optname]
670
bailout('option %r needs an argument' % a)
673
opts[optname] = optargfn(optarg)
674
mutter(" option argument %r" % opts[optname])
677
bailout('option %r takes no argument' % optname)
840
682
return args, opts
843
def _match_argform(cmd, takes_args, args):
686
def _match_args(cmd, args):
687
"""Check non-option arguments match required pattern.
689
>>> _match_args('status', ['asdasdsadasd'])
690
Traceback (most recent call last):
692
BzrError: ("extra arguments to command status: ['asdasdsadasd']", [])
693
>>> _match_args('add', ['asdasdsadasd'])
694
{'file_list': ['asdasdsadasd']}
695
>>> _match_args('add', 'abc def gj'.split())
696
{'file_list': ['abc', 'def', 'gj']}
698
# match argument pattern
699
argform = cmd_args.get(cmd, [])
701
# TODO: Need a way to express 'cp SRC... DEST', where it matches
846
# step through args and takes_args, allowing appropriate 0-many matches
847
for ap in takes_args:
704
# step through args and argform, allowing appropriate 0-many matches
848
706
argname = ap[:-1]
849
707
if ap[-1] == '?':
851
709
argdict[argname] = args.pop(0)
852
elif ap[-1] == '*': # all remaining arguments
854
argdict[argname + '_list'] = args[:]
857
argdict[argname + '_list'] = None
858
712
elif ap[-1] == '+':
860
raise errors.BzrCommandError("command %r needs one or more %s"
861
% (cmd, argname.upper()))
714
bailout("command %r needs one or more %s"
715
% (cmd, argname.upper()))
863
717
argdict[argname + '_list'] = args[:]
865
elif ap[-1] == '$': # all but one
867
raise errors.BzrCommandError("command %r needs one or more %s"
868
% (cmd, argname.upper()))
869
argdict[argname + '_list'] = args[:-1]
872
720
# just a plain arg
875
raise errors.BzrCommandError("command %r requires argument %s"
876
% (cmd, argname.upper()))
723
bailout("command %r requires argument %s"
724
% (cmd, argname.upper()))
878
726
argdict[argname] = args.pop(0)
881
raise errors.BzrCommandError("extra argument to command %s: %s"
729
bailout("extra arguments to command %s: %r"
886
def apply_coveraged(dirname, the_callable, *args, **kwargs):
887
# Cannot use "import trace", as that would import bzrlib.trace instead of
888
# the standard library's trace.
889
trace = __import__('trace')
891
tracer = trace.Trace(count=1, trace=0)
892
sys.settrace(tracer.globaltrace)
893
threading.settrace(tracer.globaltrace)
896
return exception_to_return_code(the_callable, *args, **kwargs)
899
results = tracer.results()
900
results.write_results(show_missing=1, summary=False,
904
def apply_profiled(the_callable, *args, **kwargs):
908
pffileno, pfname = tempfile.mkstemp()
910
prof = hotshot.Profile(pfname)
912
ret = prof.runcall(exception_to_return_code, the_callable, *args,
916
stats = hotshot.stats.load(pfname)
918
stats.sort_stats('cum') # 'time'
919
## XXX: Might like to write to stderr or the trace file instead but
920
## print_stats seems hardcoded to stdout
921
stats.print_stats(20)
737
"""Execute a command.
739
This is similar to main(), but without all the trappings for
740
logging and error handling.
743
args, opts = parse_args(argv[1:])
745
# TODO: pass down other arguments in case they asked for
746
# help on a command name?
749
elif 'version' in opts:
754
log_error('usage: bzr COMMAND\n')
755
log_error(' try "bzr help"\n')
759
cmd_handler = globals()['cmd_' + cmd.replace('-', '_')]
761
bailout("unknown command " + `cmd`)
763
# TODO: special --profile option to turn on the Python profiler
765
# check options are reasonable
766
allowed = cmd_options.get(cmd, [])
768
if oname not in allowed:
769
bailout("option %r is not allowed for command %r"
772
cmdargs = _match_args(cmd, args)
775
ret = cmd_handler(**cmdargs) or 0
780
## TODO: Handle command-line options; probably know what options are valid for
783
## TODO: If the arguments are wrong, give a usage message rather
784
## than just a backtrace.
786
bzrlib.trace.create_tracefile(argv)
928
def exception_to_return_code(the_callable, *args, **kwargs):
929
"""UI level helper for profiling and coverage.
931
This transforms exceptions into a return value of 3. As such its only
932
relevant to the UI layer, and should never be called where catching
933
exceptions may be desirable.
936
return the_callable(*args, **kwargs)
937
except (KeyboardInterrupt, Exception), e:
938
# used to handle AssertionError and KeyboardInterrupt
939
# specially here, but hopefully they're handled ok by the logger now
940
exc_info = sys.exc_info()
941
exitcode = trace.report_exception(exc_info, sys.stderr)
942
if os.environ.get('BZR_PDB'):
943
print '**** entering debugger'
946
if sys.version_info[:2] < (2, 6):
948
# pdb.post_mortem(tb)
949
# but because pdb.post_mortem gives bad results for tracebacks
950
# from inside generators, we do it manually.
951
# (http://bugs.python.org/issue4150, fixed in Python 2.6)
953
# Setup pdb on the traceback
956
p.setup(tb.tb_frame, tb)
957
# Point the debugger at the deepest frame of the stack
958
p.curindex = len(p.stack) - 1
959
p.curframe = p.stack[p.curindex][0]
960
# Start the pdb prompt.
961
p.print_stack_entry(p.stack[p.curindex])
969
def apply_lsprofiled(filename, the_callable, *args, **kwargs):
970
from bzrlib.lsprof import profile
971
ret, stats = profile(exception_to_return_code, the_callable, *args, **kwargs)
977
trace.note('Profile data written to "%s".', filename)
981
@deprecated_function(deprecated_in((2, 2, 0)))
982
def shlex_split_unicode(unsplit):
983
return cmdline.split(unsplit)
986
def get_alias(cmd, config=None):
987
"""Return an expanded alias, or None if no alias exists.
990
Command to be checked for an alias.
992
Used to specify an alternative config to use,
993
which is especially useful for testing.
994
If it is unspecified, the global config will be used.
998
config = bzrlib.config.GlobalConfig()
999
alias = config.get_alias(cmd)
1001
return cmdline.split(alias)
1005
def run_bzr(argv, load_plugins=load_plugins, disable_plugins=disable_plugins):
1006
"""Execute a command.
1008
:param argv: The command-line arguments, without the program name from
1009
argv[0] These should already be decoded. All library/test code calling
1010
run_bzr should be passing valid strings (don't need decoding).
1011
:param load_plugins: What function to call when triggering plugin loading.
1012
This function should take no arguments and cause all plugins to be
1014
:param disable_plugins: What function to call when disabling plugin
1015
loading. This function should take no arguments and cause all plugin
1016
loading to be prohibited (so that code paths in your application that
1017
know about some plugins possibly being present will fail to import
1018
those plugins even if they are installed.)
1019
:return: Returns a command exit code or raises an exception.
1021
Special master options: these must come before the command because
1022
they control how the command is interpreted.
1025
Do not load plugin modules at all
1028
Do not allow aliases
1031
Only use builtin commands. (Plugins are still allowed to change
1035
Run under the Python hotshot profiler.
1038
Run under the Python lsprof profiler.
1041
Generate line coverage report in the specified directory.
1044
Specify the number of processes that can be run concurrently (selftest).
1046
trace.mutter("bazaar version: " + bzrlib.__version__)
1047
argv = _specified_or_unicode_argv(argv)
1048
trace.mutter("bzr arguments: %r", argv)
1050
opt_lsprof = opt_profile = opt_no_plugins = opt_builtin = \
1051
opt_no_aliases = False
1052
opt_lsprof_file = opt_coverage_dir = None
1054
# --no-plugins is handled specially at a very early stage. We need
1055
# to load plugins before doing other command parsing so that they
1056
# can override commands, but this needs to happen first.
1060
while i < len(argv):
1062
if a == '--profile':
1064
elif a == '--lsprof':
1066
elif a == '--lsprof-file':
1068
opt_lsprof_file = argv[i + 1]
1070
elif a == '--no-plugins':
1071
opt_no_plugins = True
1072
elif a == '--no-aliases':
1073
opt_no_aliases = True
1074
elif a == '--builtin':
1076
elif a == '--concurrency':
1077
os.environ['BZR_CONCURRENCY'] = argv[i + 1]
1079
elif a == '--coverage':
1080
opt_coverage_dir = argv[i + 1]
1082
elif a == '--profile-imports':
1083
pass # already handled in startup script Bug #588277
1084
elif a.startswith('-D'):
1085
debug.debug_flags.add(a[2:])
1090
debug.set_debug_flags_from_config()
1092
if not opt_no_plugins:
1099
get_cmd_object('help').run_argv_aliases([])
1102
if argv[0] == '--version':
1103
get_cmd_object('version').run_argv_aliases([])
1108
if not opt_no_aliases:
1109
alias_argv = get_alias(argv[0])
1111
argv[0] = alias_argv.pop(0)
1114
cmd_obj = get_cmd_object(cmd, plugins_override=not opt_builtin)
1115
run = cmd_obj.run_argv_aliases
1116
run_argv = [argv, alias_argv]
1119
# We can be called recursively (tests for example), but we don't want
1120
# the verbosity level to propagate.
1121
saved_verbosity_level = option._verbosity_level
1122
option._verbosity_level = 0
1124
if opt_coverage_dir:
1126
'--coverage ignored, because --lsprof is in use.')
1127
ret = apply_lsprofiled(opt_lsprof_file, run, *run_argv)
1129
if opt_coverage_dir:
1131
'--coverage ignored, because --profile is in use.')
1132
ret = apply_profiled(run, *run_argv)
1133
elif opt_coverage_dir:
1134
ret = apply_coveraged(opt_coverage_dir, run, *run_argv)
1136
ret = run(*run_argv)
1139
# reset, in case we may do other commands later within the same
1140
# process. Commands that want to execute sub-commands must propagate
1141
# --verbose in their own way.
1142
if 'memory' in debug.debug_flags:
1143
trace.debug_memory('Process status after command:', short=False)
1144
option._verbosity_level = saved_verbosity_level
1147
def display_command(func):
1148
"""Decorator that suppresses pipe/interrupt errors."""
1149
def ignore_pipe(*args, **kwargs):
1151
result = func(*args, **kwargs)
1155
if getattr(e, 'errno', None) is None:
1157
if e.errno != errno.EPIPE:
1158
# Win32 raises IOError with errno=0 on a broken pipe
1159
if sys.platform != 'win32' or (e.errno not in (0, errno.EINVAL)):
1162
except KeyboardInterrupt:
1167
def install_bzr_command_hooks():
1168
"""Install the hooks to supply bzr's own commands."""
1169
if _list_bzr_commands in Command.hooks["list_commands"]:
1171
Command.hooks.install_named_hook("list_commands", _list_bzr_commands,
1173
Command.hooks.install_named_hook("get_command", _get_bzr_command,
1175
Command.hooks.install_named_hook("get_command", _get_plugin_command,
1176
"bzr plugin commands")
1177
Command.hooks.install_named_hook("get_command", _get_external_command,
1178
"bzr external command lookup")
1179
Command.hooks.install_named_hook("get_missing_command", _try_plugin_provider,
1180
"bzr plugin-provider-db check")
1184
def _specified_or_unicode_argv(argv):
1185
# For internal or testing use, argv can be passed. Otherwise, get it from
1186
# the process arguments in a unicode-safe way.
1188
return osutils.get_unicode_argv()
1192
# ensure all arguments are unicode strings
1194
if isinstance(a, unicode):
1197
new_argv.append(a.decode('ascii'))
1198
except UnicodeDecodeError:
1199
raise errors.BzrError("argv should be list of unicode strings.")
1203
def main(argv=None):
1204
"""Main entry point of command-line interface.
1206
Typically `bzrlib.initialize` should be called first.
1208
:param argv: list of unicode command-line arguments similar to sys.argv.
1209
argv[0] is script name usually, it will be ignored.
1210
Don't pass here sys.argv because this list contains plain strings
1211
and not unicode; pass None instead.
1213
:return: exit code of bzr command.
1215
if argv is not None:
1217
_register_builtin_commands()
1218
ret = run_bzr_catch_errors(argv)
1219
trace.mutter("return code %d", ret)
1223
def run_bzr_catch_errors(argv):
1224
"""Run a bzr command with parameters as described by argv.
1226
This function assumed that that UI layer is setup, that symbol deprecations
1227
are already applied, and that unicode decoding has already been performed on argv.
1229
# done here so that they're covered for every test run
1230
install_bzr_command_hooks()
1231
return exception_to_return_code(run_bzr, argv)
1234
def run_bzr_catch_user_errors(argv):
1235
"""Run bzr and report user errors, but let internal errors propagate.
1237
This is used for the test suite, and might be useful for other programs
1238
that want to wrap the commandline interface.
1240
# done here so that they're covered for every test run
1241
install_bzr_command_hooks()
1243
return run_bzr(argv)
792
log_error('bzr: error: ' + e.args[0] + '\n')
795
log_error(' ' + h + '\n')
1244
797
except Exception, e:
1245
if (isinstance(e, (OSError, IOError))
1246
or not getattr(e, 'internal_error', True)):
1247
trace.report_exception(sys.exc_info(), sys.stderr)
1253
class HelpCommandIndex(object):
1254
"""A index for bzr help that returns commands."""
1257
self.prefix = 'commands/'
1259
def get_topics(self, topic):
1260
"""Search for topic amongst commands.
1262
:param topic: A topic to search for.
1263
:return: A list which is either empty or contains a single
1266
if topic and topic.startswith(self.prefix):
1267
topic = topic[len(self.prefix):]
1269
cmd = _get_cmd_object(topic, check_missing=False)
1276
class Provider(object):
1277
'''Generic class to be overriden by plugins'''
1279
def plugin_for_command(self, cmd_name):
1280
'''Takes a command and returns the information for that plugin
1282
:return: A dictionary with all the available information
1283
for the requested plugin
1285
raise NotImplementedError
1288
class ProvidersRegistry(registry.Registry):
1289
'''This registry exists to allow other providers to exist'''
1292
for key, provider in self.iteritems():
1295
command_providers_registry = ProvidersRegistry()
798
log_error('bzr: exception: %s\n' % e)
799
log_error(' see .bzr.log for details\n')
800
traceback.print_exc(None, bzrlib.trace._tracefile)
801
traceback.print_exc(None, sys.stderr)
804
# TODO: Maybe nicer handling of IOError?
808
if __name__ == '__main__':
809
sys.exit(main(sys.argv))
811
##profile.run('main(sys.argv)')
added
removed
bzrlib/commands.py
