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# Copyright (C) 2006, 2008, 2009 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: probably should say which arguments are candidates for glob
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# expansion on windows and do that at the command level.
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# TODO: Define arguments by objects, rather than just using names.
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# Those objects can specify the expected type of the argument, which
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# would help with validation and shell completion. They could also provide
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# help/explanation for that argument in a structured way.
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# TODO: Specific "examples" property on commands for consistent formatting.
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# TODO: "--profile=cum", to change sort order. Is there any value in leaving
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# the profile output behind so it can be interactively examined?
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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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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 HookPoint, Hooks
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# Compatibility - Option used to be in commands.
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from bzrlib.option import Option
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from bzrlib import registry
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from bzrlib.symbol_versioning import (
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suppress_deprecation_warnings,
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class CommandInfo(object):
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"""Information about a command."""
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def __init__(self, aliases):
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"""The list of aliases for the command."""
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self.aliases = aliases
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def from_command(klass, command):
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"""Factory to construct a CommandInfo from a command."""
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return klass(command.aliases)
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class CommandRegistry(registry.Registry):
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def _get_name(command_name):
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if command_name.startswith("cmd_"):
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return _unsquish_command_name(command_name)
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def register(self, cmd, decorate=False):
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"""Utility function to help register a command
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:param cmd: Command subclass to register
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:param decorate: If true, allow overriding an existing command
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of the same name; the old command is returned by this function.
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Otherwise it is an error to try to override an existing command.
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k_unsquished = self._get_name(k)
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previous = self.get(k_unsquished)
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previous = _builtin_commands().get(k_unsquished)
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info = CommandInfo.from_command(cmd)
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registry.Registry.register(self, k_unsquished, cmd,
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override_existing=decorate, info=info)
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trace.warning('Two plugins defined the same command: %r' % k)
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trace.warning('Not loading the one in %r' %
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sys.modules[cmd.__module__])
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trace.warning('Previously this command was registered from %r' %
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sys.modules[previous.__module__])
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def register_lazy(self, command_name, aliases, module_name):
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"""Register a command without loading its module.
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:param command_name: The primary name of the command.
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:param aliases: A list of aliases for the command.
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:module_name: The module that the command lives in.
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key = self._get_name(command_name)
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registry.Registry.register_lazy(self, key, module_name, command_name,
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info=CommandInfo(aliases))
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plugin_cmds = CommandRegistry()
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def register_command(cmd, decorate=False):
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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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def _builtin_commands():
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import bzrlib.builtins
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return _scan_module_for_commands(bzrlib.builtins)
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def _scan_module_for_commands(module):
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for name, obj in module.__dict__.iteritems():
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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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# 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_commands().keys()
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def plugin_command_names():
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"""Returns command names from commands registered by plugins."""
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return plugin_cmds.keys()
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@deprecated_function(deprecated_in((1, 17, 0)))
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def get_all_cmds(plugins_override=False):
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"""Return canonical name and class for most commands.
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NB: This does not return all commands since the introduction of
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command hooks, and returning the class is not sufficient to
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get correctly setup commands, which is why it is deprecated.
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Use 'all_command_names' + 'get_cmd_object' instead.
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d = _builtin_commands()
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d.update(plugin_cmds.iteritems())
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for k, v in d.iteritems():
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def get_cmd_object(cmd_name, plugins_override=True):
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"""Return the command object for a command.
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If true, plugin commands can override builtins.
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return _get_cmd_object(cmd_name, plugins_override)
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raise errors.BzrCommandError('unknown command "%s"' % cmd_name)
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def _get_cmd_object(cmd_name, plugins_override=True):
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"""Get a command object.
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:param cmd_name: The name of the command.
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:param plugins_override: Allow plugins to override builtins.
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:return: A Command object instance
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:raises KeyError: If no command is found.
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# We want only 'ascii' command names, but the user may have typed
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# in a Unicode name. In that case, they should just get a
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# 'command not found' error later.
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# In the future, we may actually support Unicode command names.
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for hook in Command.hooks['get_command']:
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cmd = hook(cmd, cmd_name)
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if cmd is not None and not plugins_override and not cmd.plugin_name():
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# We've found a non-plugin command, don't permit it to be
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for hook in Command.hooks['get_missing_command']:
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# Allow plugins to extend commands
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for hook in Command.hooks['extend_command']:
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def _try_plugin_provider(cmd_name):
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"""Probe for a plugin provider having cmd_name."""
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plugin_metadata, provider = probe_for_provider(cmd_name)
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raise errors.CommandAvailableInPlugin(cmd_name,
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plugin_metadata, provider)
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except errors.NoPluginAvailable:
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def probe_for_provider(cmd_name):
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"""Look for a provider for cmd_name.
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:param cmd_name: The command name.
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:return: plugin_metadata, provider for getting cmd_name.
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:raises NoPluginAvailable: When no provider can supply the plugin.
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# look for providers that provide this command but aren't installed
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for provider in command_providers_registry:
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return provider.plugin_for_command(cmd_name), provider
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except errors.NoPluginAvailable:
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raise errors.NoPluginAvailable(cmd_name)
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def _get_bzr_command(cmd_or_None, cmd_name):
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"""Get a command from bzr's core."""
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cmds = _builtin_commands()
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return cmds[cmd_name]()
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# look for any command which claims this as an alias
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for real_cmd_name, cmd_class in cmds.iteritems():
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if cmd_name in cmd_class.aliases:
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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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:cvar hooks: An instance of CommandHooks.
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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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self._operation = cleanup.OperationWithCleanups(self.run)
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def add_cleanup(self, cleanup_func, *args, **kwargs):
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"""Register a function to call after self.run returns or raises.
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Functions will be called in LIFO order.
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self._operation.add_cleanup(cleanup_func, *args, **kwargs)
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def cleanup_now(self):
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"""Execute and empty pending cleanup functions immediately.
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After cleanup_now all registered cleanups are forgotten. add_cleanup
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may be called again after cleanup_now; these cleanups will be called
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after self.run returns or raises (or when cleanup_now is next called).
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This is useful for releasing expensive or contentious resources (such
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as write locks) before doing further work that does not require those
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resources (such as writing results to self.outf).
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self._operation.cleanup_now()
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@deprecated_method(deprecated_in((2, 1, 0)))
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def _maybe_expand_globs(self, file_list):
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"""Glob expand file_list if the platform does not do that itself.
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Not used anymore, now that the bzr command-line parser globs on
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:return: A possibly empty list of unicode paths.
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Introduced in bzrlib 0.18.
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"""Return single-line grammar for this command.
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Only describes arguments, not options.
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s = 'bzr ' + self.name() + ' '
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for aname in self.takes_args:
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aname = aname.upper()
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if aname[-1] in ['$', '+']:
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aname = aname[:-1] + '...'
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elif aname[-1] == '?':
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aname = '[' + aname[:-1] + ']'
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elif aname[-1] == '*':
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aname = '[' + aname[:-1] + '...]'
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s = s[:-1] # remove last space
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def get_help_text(self, additional_see_also=None, plain=True,
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see_also_as_links=False, verbose=True):
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"""Return a text string with help for this command.
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:param additional_see_also: Additional help topics to be
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:param plain: if False, raw help (reStructuredText) is
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returned instead of plain text.
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:param see_also_as_links: if True, convert items in 'See also'
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list to internal links (used by bzr_man rstx generator)
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:param verbose: if True, display the full help, otherwise
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leave out the descriptive sections and just display
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usage help (e.g. Purpose, Usage, Options) with a
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message explaining how to obtain full help.
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raise NotImplementedError("sorry, no detailed help yet for %r" % self.name())
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# Extract the summary (purpose) and sections out from the text
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purpose,sections,order = self._get_help_parts(doc)
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# If a custom usage section was provided, use it
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if sections.has_key('Usage'):
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usage = sections.pop('Usage')
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usage = self._usage()
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# The header is the purpose and usage
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result += ':Purpose: %s\n' % purpose
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if usage.find('\n') >= 0:
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result += ':Usage:\n%s\n' % usage
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result += ':Usage: %s\n' % usage
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# XXX: optparse implicitly rewraps the help, and not always perfectly,
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# so we get <https://bugs.launchpad.net/bzr/+bug/249908>. -- mbp
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options = option.get_optparser(self.options()).format_option_help()
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# XXX: According to the spec, ReST option lists actually don't support
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# options like --1.9 so that causes syntax errors (in Sphinx at least).
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# As that pattern always appears in the commands that break, we trap
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# on that and then format that block of 'format' options as a literal
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if not plain and options.find(' --1.9 ') != -1:
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options = options.replace(' format:\n', ' format::\n\n', 1)
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if options.startswith('Options:'):
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result += ':' + options
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elif options.startswith('options:'):
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# Python 2.4 version of optparse
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result += ':Options:' + options[len('options:'):]
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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']:
310
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':
318
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_deleted(show_ids=False):
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"""List files deleted in the working tree.
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TODO: Show files deleted since a previous revision, or between two revisions.
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new = b.working_tree()
351
for path, ie in old.inventory.iter_entries():
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if not new.has_id(ie.file_id):
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print '%-50s %s' % (path, ie.file_id)
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def cmd_root(filename=None):
362
"""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))
385
for fp, fc, kind, fid in tree.list_files():
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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"
519
# Add the aliases, source (plug-in) and see also links, if any
521
result += ':Aliases: '
522
result += ', '.join(self.aliases) + '\n'
523
plugin_name = self.plugin_name()
524
if plugin_name is not None:
525
result += ':From: plugin "%s"\n' % plugin_name
526
see_also = self.get_see_also(additional_see_also)
528
if not plain and see_also_as_links:
530
for item in see_also:
532
# topics doesn't have an independent section
533
# so don't create a real link
534
see_also_links.append(item)
536
# Use a Sphinx link for this entry
537
link_text = ":doc:`%s <%s-help>`" % (item, item)
538
see_also_links.append(link_text)
539
see_also = see_also_links
540
result += ':See also: '
541
result += ', '.join(see_also) + '\n'
543
# If this will be rendered as plain text, convert it
545
import bzrlib.help_topics
546
result = bzrlib.help_topics.help_as_plain_text(result)
550
def _get_help_parts(text):
551
"""Split help text into a summary and named sections.
553
:return: (summary,sections,order) where summary is the top line and
554
sections is a dictionary of the rest indexed by section name.
555
order is the order the section appear in the text.
556
A section starts with a heading line of the form ":xxx:".
557
Indented text on following lines is the section value.
558
All text found outside a named section is assigned to the
559
default section which is given the key of None.
561
def save_section(sections, order, label, section):
563
if sections.has_key(label):
564
sections[label] += '\n' + section
567
sections[label] = section
569
lines = text.rstrip().splitlines()
570
summary = lines.pop(0)
573
label,section = None,''
575
if line.startswith(':') and line.endswith(':') and len(line) > 2:
576
save_section(sections, order, label, section)
577
label,section = line[1:-1],''
578
elif (label is not None) and len(line) > 1 and not line[0].isspace():
579
save_section(sections, order, label, section)
580
label,section = None,line
387
if kind == 'directory':
583
section += '\n' + line
586
save_section(sections, order, label, section)
587
return summary, sections, order
589
def get_help_topic(self):
590
"""Return the commands help topic - its name."""
593
def get_see_also(self, additional_terms=None):
594
"""Return a list of help topics that are related to this command.
596
The list is derived from the content of the _see_also attribute. Any
597
duplicates are removed and the result is in lexical order.
598
:param additional_terms: Additional help topics to cross-reference.
599
:return: A list of help topics.
601
see_also = set(getattr(self, '_see_also', []))
603
see_also.update(additional_terms)
604
return sorted(see_also)
607
"""Return dict of valid options for this command.
609
Maps from long option name to option object."""
610
r = Option.STD_OPTIONS.copy()
612
for o in self.takes_options:
613
if isinstance(o, basestring):
614
o = option.Option.OPTIONS[o]
616
if o.name in std_names:
617
self.supported_std_options.append(o.name)
620
def _setup_outf(self):
621
"""Return a file linked to stdout, which has proper encoding."""
622
self.outf = ui.ui_factory.make_output_stream(
623
encoding_type=self.encoding_type)
625
def run_argv_aliases(self, argv, alias_argv=None):
626
"""Parse the command line and run with extra aliases in alias_argv."""
628
warn("Passing None for [] is deprecated from bzrlib 0.10",
629
DeprecationWarning, stacklevel=2)
631
args, opts = parse_args(self, argv, alias_argv)
633
# Process the standard options
634
if 'help' in opts: # e.g. bzr add --help
635
sys.stdout.write(self.get_help_text())
637
if 'usage' in opts: # e.g. bzr add --usage
638
sys.stdout.write(self.get_help_text(verbose=False))
640
trace.set_verbosity_level(option._verbosity_level)
641
if 'verbose' in self.supported_std_options:
642
opts['verbose'] = trace.is_verbose()
643
elif opts.has_key('verbose'):
645
if 'quiet' in self.supported_std_options:
646
opts['quiet'] = trace.is_quiet()
647
elif opts.has_key('quiet'):
650
# mix arguments and options into one dictionary
651
cmdargs = _match_argform(self.name(), self.takes_args, args)
653
for k, v in opts.items():
654
cmdopts[k.replace('-', '_')] = v
656
all_cmd_args = cmdargs.copy()
657
all_cmd_args.update(cmdopts)
661
return self.run_direct(**all_cmd_args)
663
def run_direct(self, *args, **kwargs):
664
"""Call run directly with objects (without parsing an argv list)."""
665
return self._operation.run_simple(*args, **kwargs)
668
"""Actually run the command.
670
This is invoked with the options and arguments bound to
673
Return 0 or None if the command was successful, or a non-zero
674
shell error code if not. It's OK for this method to allow
675
an exception to raise up.
677
raise NotImplementedError('no implementation of command %r'
681
"""Return help message for this class."""
682
from inspect import getdoc
683
if self.__doc__ is Command.__doc__:
688
return _unsquish_command_name(self.__class__.__name__)
690
def plugin_name(self):
691
"""Get the name of the plugin that provides this command.
693
:return: The name of the plugin or None if the command is builtin.
695
mod_parts = self.__module__.split('.')
696
if len(mod_parts) >= 3 and mod_parts[1] == 'plugins':
702
class CommandHooks(Hooks):
703
"""Hooks related to Command object creation/enumeration."""
706
"""Create the default hooks.
708
These are all empty initially, because by default nothing should get
712
self.create_hook(HookPoint('extend_command',
713
"Called after creating a command object to allow modifications "
714
"such as adding or removing options, docs etc. Called with the "
715
"new bzrlib.commands.Command object.", (1, 13), None))
716
self.create_hook(HookPoint('get_command',
717
"Called when creating a single command. Called with "
718
"(cmd_or_None, command_name). get_command should either return "
719
"the cmd_or_None parameter, or a replacement Command object that "
720
"should be used for the command. Note that the Command.hooks "
721
"hooks are core infrastructure. Many users will prefer to use "
722
"bzrlib.commands.register_command or plugin_cmds.register_lazy.",
724
self.create_hook(HookPoint('get_missing_command',
725
"Called when creating a single command if no command could be "
726
"found. Called with (command_name). get_missing_command should "
727
"either return None, or a Command object to be used for the "
728
"command.", (1, 17), None))
729
self.create_hook(HookPoint('list_commands',
730
"Called when enumerating commands. Called with a set of "
731
"cmd_name strings for all the commands found so far. This set "
732
" is safe to mutate - e.g. to remove a command. "
733
"list_commands should return the updated set of command names.",
736
Command.hooks = CommandHooks()
739
def parse_args(command, argv, alias_argv=None):
394
print '%-8s %s%s' % (fc, fp, kindch)
401
"""List unknown files"""
402
for f in Branch('.').unknowns():
407
def cmd_ignored(verbose=True):
408
"""List ignored files and the patterns that matched them.
410
tree = Branch('.').working_tree()
411
for path, file_class, kind, id in tree.list_files():
412
if file_class != 'I':
414
## XXX: Slightly inefficient since this was already calculated
415
pat = tree.is_ignored(path)
416
print '%-50s %s' % (path, pat)
420
def cmd_lookup_revision(revno):
424
bailout("usage: lookup-revision REVNO",
425
["REVNO is a non-negative revision number for this branch"])
427
print Branch('.').lookup_revision(revno) or NONE_STRING
431
def cmd_export(revno, dest):
432
"""Export past revision to destination directory."""
434
rh = b.lookup_revision(int(revno))
435
t = b.revision_tree(rh)
440
######################################################################
441
# internal/test commands
445
"""Print a newly-generated UUID."""
446
print bzrlib.osutils.uuid()
450
def cmd_local_time_offset():
451
print bzrlib.osutils.local_time_offset()
455
def cmd_commit(message=None, verbose=False):
456
"""Commit changes to a new revision.
459
Description of changes in this revision; free form text.
460
It is recommended that the first line be a single-sentence
463
Show status of changed files,
465
TODO: Commit only selected files.
467
TODO: Run hooks on tree to-be-committed, and after commit.
469
TODO: Strict commit that fails if there are unknown or deleted files.
473
bailout("please specify a commit message")
474
Branch('.').commit(message, verbose=verbose)
477
def cmd_check(dir='.'):
478
"""check: Consistency check of branch history.
480
usage: bzr check [-v] [BRANCH]
483
--verbose, -v Show progress of checking.
485
This command checks various invariants about the branch storage to
486
detect data corruption or bzr bugs.
489
bzrlib.check.check(Branch(dir, find_root=False))
492
def cmd_is(pred, *rest):
493
"""Test whether PREDICATE is true."""
495
cmd_handler = globals()['assert_' + pred.replace('-', '_')]
497
bailout("unknown predicate: %s" % quotefn(pred))
501
except BzrCheckError:
502
# by default we don't print the message so that this can
503
# be used from shell scripts without producing noise
508
print bzrlib.osutils.username()
511
def cmd_user_email():
512
print bzrlib.osutils.user_email()
515
def cmd_gen_revision_id():
517
print bzrlib.branch._gen_revision_id(time.time())
520
def cmd_selftest(verbose=False):
521
"""Run internal test suite"""
522
## -v, if present, is seen by doctest; the argument is just here
523
## so our parser doesn't complain
525
## TODO: --verbose option
527
failures, tests = 0, 0
529
import doctest, bzrlib.store, bzrlib.tests
530
bzrlib.trace.verbose = False
532
for m in bzrlib.store, bzrlib.inventory, bzrlib.branch, bzrlib.osutils, \
533
bzrlib.tree, bzrlib.tests, bzrlib.commands, bzrlib.add:
534
mf, mt = doctest.testmod(m)
537
print '%-40s %3d tests' % (m.__name__, mt),
539
print '%3d FAILED!' % mf
543
print '%-40s %3d tests' % ('total', tests),
545
print '%3d FAILED!' % failures
552
cmd_doctest = cmd_selftest
555
######################################################################
559
def cmd_help(topic=None):
564
# otherwise, maybe the name of a command?
566
cmdfn = globals()['cmd_' + topic.replace('-', '_')]
568
bailout("no help for %r" % topic)
572
bailout("sorry, no detailed help yet for %r" % topic)
580
print "bzr (bazaar-ng) %s" % bzrlib.__version__
581
print bzrlib.__copyright__
582
print "http://bazaar-ng.org/"
585
"""bzr comes with ABSOLUTELY NO WARRANTY. bzr is free software, and
586
you may use, modify and redistribute it under the terms of the GNU
587
General Public License version 2 or later."""
591
"""Statement of optimism."""
592
print "it sure does!"
596
######################################################################
600
# list of all available options; the rhs can be either None for an
601
# option that takes no argument, or a constructor function that checks
621
# List of options that apply to particular commands; commands not
625
'commit': ['message', 'verbose'],
626
'deleted': ['show-ids'],
627
'diff': ['revision'],
628
'inventory': ['revision'],
630
'ls': ['revision', 'verbose'],
631
'remove': ['verbose'],
640
'export': ['revno', 'dest'],
641
'file-id': ['filename'],
642
'get-file-text': ['text_id'],
643
'get-inventory': ['inventory_id'],
644
'get-revision': ['revision_id'],
645
'get-revision-inventory': ['revision_id'],
649
'lookup-revision': ['revno'],
650
'relpath': ['filename'],
652
'root': ['filename?'],
657
def parse_args(argv):
740
658
"""Parse command line.
742
660
Arguments and options are parsed at this level before being passed
743
661
down to specific command handlers. This routine knows, from a
744
662
lookup table, something about the available options, what optargs
745
663
they take, and which commands will accept them.
665
>>> parse_args('--help'.split())
667
>>> parse_args('--version'.split())
668
([], {'version': True})
669
>>> parse_args('status --all'.split())
670
(['status'], {'all': True})
671
>>> parse_args('commit --message=biter'.split())
672
(['commit'], {'message': u'biter'})
747
# TODO: make it a method of the Command?
748
parser = option.get_optparser(command.options())
749
if alias_argv is not None:
750
args = alias_argv + argv
754
options, args = parser.parse_args(args)
755
opts = dict([(k, v) for k, v in options.__dict__.iteritems() if
756
v is not option.OptionParser.DEFAULT_VALUE])
677
# TODO: Maybe handle '--' to end options?
684
mutter(" got option %r" % a)
686
optname, optarg = a[2:].split('=', 1)
689
if optname not in OPTIONS:
690
bailout('unknown long option %r' % a)
693
if shortopt not in SHORT_OPTIONS:
694
bailout('unknown short option %r' % a)
695
optname = SHORT_OPTIONS[shortopt]
698
# XXX: Do we ever want to support this, e.g. for -r?
699
bailout('repeated option %r' % a)
701
optargfn = OPTIONS[optname]
705
bailout('option %r needs an argument' % a)
708
opts[optname] = optargfn(optarg)
711
bailout('option %r takes no argument' % optname)
757
716
return args, opts
760
def _match_argform(cmd, takes_args, args):
720
def _match_args(cmd, args):
721
"""Check non-option arguments match required pattern.
723
>>> _match_args('status', ['asdasdsadasd'])
724
Traceback (most recent call last):
726
BzrError: ("extra arguments to command status: ['asdasdsadasd']", [])
727
>>> _match_args('add', ['asdasdsadasd'])
728
{'file_list': ['asdasdsadasd']}
729
>>> _match_args('add', 'abc def gj'.split())
730
{'file_list': ['abc', 'def', 'gj']}
732
# match argument pattern
733
argform = cmd_args.get(cmd, [])
735
# TODO: Need a way to express 'cp SRC... DEST', where it matches
763
# step through args and takes_args, allowing appropriate 0-many matches
764
for ap in takes_args:
738
# step through args and argform, allowing appropriate 0-many matches
765
740
argname = ap[:-1]
766
741
if ap[-1] == '?':
768
743
argdict[argname] = args.pop(0)
769
elif ap[-1] == '*': # all remaining arguments
771
argdict[argname + '_list'] = args[:]
774
argdict[argname + '_list'] = None
775
746
elif ap[-1] == '+':
777
raise errors.BzrCommandError("command %r needs one or more %s"
778
% (cmd, argname.upper()))
748
bailout("command %r needs one or more %s"
749
% (cmd, argname.upper()))
780
751
argdict[argname + '_list'] = args[:]
782
elif ap[-1] == '$': # all but one
784
raise errors.BzrCommandError("command %r needs one or more %s"
785
% (cmd, argname.upper()))
786
argdict[argname + '_list'] = args[:-1]
789
754
# just a plain arg
792
raise errors.BzrCommandError("command %r requires argument %s"
793
% (cmd, argname.upper()))
757
bailout("command %r requires argument %s"
758
% (cmd, argname.upper()))
795
760
argdict[argname] = args.pop(0)
798
raise errors.BzrCommandError("extra argument to command %s: %s"
763
bailout("extra arguments to command %s: %r"
803
def apply_coveraged(dirname, the_callable, *args, **kwargs):
804
# Cannot use "import trace", as that would import bzrlib.trace instead of
805
# the standard library's trace.
806
trace = __import__('trace')
808
tracer = trace.Trace(count=1, trace=0)
809
sys.settrace(tracer.globaltrace)
810
threading.settrace(tracer.globaltrace)
813
return exception_to_return_code(the_callable, *args, **kwargs)
816
results = tracer.results()
817
results.write_results(show_missing=1, summary=False,
821
def apply_profiled(the_callable, *args, **kwargs):
825
pffileno, pfname = tempfile.mkstemp()
827
prof = hotshot.Profile(pfname)
829
ret = prof.runcall(exception_to_return_code, the_callable, *args,
833
stats = hotshot.stats.load(pfname)
835
stats.sort_stats('cum') # 'time'
836
## XXX: Might like to write to stderr or the trace file instead but
837
## print_stats seems hardcoded to stdout
771
"""Execute a command.
773
This is similar to main(), but without all the trappings for
774
logging and error handling.
777
args, opts = parse_args(argv[1:])
779
# TODO: pass down other arguments in case they asked for
780
# help on a command name?
783
elif 'version' in opts:
788
log_error('usage: bzr COMMAND\n')
789
log_error(' try "bzr help"\n')
793
cmd_handler = globals()['cmd_' + cmd.replace('-', '_')]
795
bailout("unknown command " + `cmd`)
798
if 'profile' in opts:
804
# check options are reasonable
805
allowed = cmd_options.get(cmd, [])
807
if oname not in allowed:
808
bailout("option %r is not allowed for command %r"
811
# mix arguments and options into one dictionary
812
cmdargs = _match_args(cmd, args)
813
for k, v in opts.items():
814
cmdargs[k.replace('-', '_')] = v
818
prof = hotshot.Profile('.bzr.profile')
819
ret = prof.runcall(cmd_handler, **cmdargs) or 0
823
stats = hotshot.stats.load('.bzr.profile')
825
stats.sort_stats('cumulative', 'calls')
838
826
stats.print_stats(20)
828
return cmd_handler(**cmdargs) or 0
833
## TODO: Handle command-line options; probably know what options are valid for
836
## TODO: If the arguments are wrong, give a usage message rather
837
## than just a backtrace.
839
bzrlib.trace.create_tracefile(argv)
845
def exception_to_return_code(the_callable, *args, **kwargs):
846
"""UI level helper for profiling and coverage.
848
This transforms exceptions into a return value of 3. As such its only
849
relevant to the UI layer, and should never be called where catching
850
exceptions may be desirable.
853
return the_callable(*args, **kwargs)
854
except (KeyboardInterrupt, Exception), e:
855
# used to handle AssertionError and KeyboardInterrupt
856
# specially here, but hopefully they're handled ok by the logger now
857
exc_info = sys.exc_info()
858
exitcode = trace.report_exception(exc_info, sys.stderr)
859
if os.environ.get('BZR_PDB'):
860
print '**** entering debugger'
863
if sys.version_info[:2] < (2, 6):
865
# pdb.post_mortem(tb)
866
# but because pdb.post_mortem gives bad results for tracebacks
867
# from inside generators, we do it manually.
868
# (http://bugs.python.org/issue4150, fixed in Python 2.6)
870
# Setup pdb on the traceback
873
p.setup(tb.tb_frame, tb)
874
# Point the debugger at the deepest frame of the stack
875
p.curindex = len(p.stack) - 1
876
p.curframe = p.stack[p.curindex][0]
877
# Start the pdb prompt.
878
p.print_stack_entry(p.stack[p.curindex])
886
def apply_lsprofiled(filename, the_callable, *args, **kwargs):
887
from bzrlib.lsprof import profile
888
ret, stats = profile(exception_to_return_code, the_callable, *args, **kwargs)
894
trace.note('Profile data written to "%s".', filename)
898
def shlex_split_unicode(unsplit):
900
return [u.decode('utf-8') for u in shlex.split(unsplit.encode('utf-8'))]
903
def get_alias(cmd, config=None):
904
"""Return an expanded alias, or None if no alias exists.
907
Command to be checked for an alias.
909
Used to specify an alternative config to use,
910
which is especially useful for testing.
911
If it is unspecified, the global config will be used.
915
config = bzrlib.config.GlobalConfig()
916
alias = config.get_alias(cmd)
918
return shlex_split_unicode(alias)
923
"""Execute a command.
926
The command-line arguments, without the program name from argv[0]
927
These should already be decoded. All library/test code calling
928
run_bzr should be passing valid strings (don't need decoding).
930
Returns a command status or raises an exception.
932
Special master options: these must come before the command because
933
they control how the command is interpreted.
936
Do not load plugin modules at all
942
Only use builtin commands. (Plugins are still allowed to change
946
Run under the Python hotshot profiler.
949
Run under the Python lsprof profiler.
952
Generate line coverage report in the specified directory.
955
Specify the number of processes that can be run concurrently (selftest).
957
trace.mutter("bazaar version: " + bzrlib.__version__)
959
trace.mutter("bzr arguments: %r", argv)
961
opt_lsprof = opt_profile = opt_no_plugins = opt_builtin = \
962
opt_no_aliases = False
963
opt_lsprof_file = opt_coverage_dir = None
965
# --no-plugins is handled specially at a very early stage. We need
966
# to load plugins before doing other command parsing so that they
967
# can override commands, but this needs to happen first.
975
elif a == '--lsprof':
977
elif a == '--lsprof-file':
979
opt_lsprof_file = argv[i + 1]
981
elif a == '--no-plugins':
982
opt_no_plugins = True
983
elif a == '--no-aliases':
984
opt_no_aliases = True
985
elif a == '--builtin':
987
elif a == '--concurrency':
988
os.environ['BZR_CONCURRENCY'] = argv[i + 1]
990
elif a == '--coverage':
991
opt_coverage_dir = argv[i + 1]
993
elif a.startswith('-D'):
994
debug.debug_flags.add(a[2:])
999
debug.set_debug_flags_from_config()
1003
from bzrlib.builtins import cmd_help
1004
cmd_help().run_argv_aliases([])
1007
if argv[0] == '--version':
1008
from bzrlib.builtins import cmd_version
1009
cmd_version().run_argv_aliases([])
1012
if not opt_no_plugins:
1013
from bzrlib.plugin import load_plugins
1016
from bzrlib.plugin import disable_plugins
1021
if not opt_no_aliases:
1022
alias_argv = get_alias(argv[0])
1024
user_encoding = osutils.get_user_encoding()
1025
alias_argv = [a.decode(user_encoding) for a in alias_argv]
1026
argv[0] = alias_argv.pop(0)
1029
# We want only 'ascii' command names, but the user may have typed
1030
# in a Unicode name. In that case, they should just get a
1031
# 'command not found' error later.
1033
cmd_obj = get_cmd_object(cmd, plugins_override=not opt_builtin)
1034
run = cmd_obj.run_argv_aliases
1035
run_argv = [argv, alias_argv]
1038
# We can be called recursively (tests for example), but we don't want
1039
# the verbosity level to propagate.
1040
saved_verbosity_level = option._verbosity_level
1041
option._verbosity_level = 0
1043
if opt_coverage_dir:
1045
'--coverage ignored, because --lsprof is in use.')
1046
ret = apply_lsprofiled(opt_lsprof_file, run, *run_argv)
1048
if opt_coverage_dir:
1050
'--coverage ignored, because --profile is in use.')
1051
ret = apply_profiled(run, *run_argv)
1052
elif opt_coverage_dir:
1053
ret = apply_coveraged(opt_coverage_dir, run, *run_argv)
1055
ret = run(*run_argv)
1058
# reset, in case we may do other commands later within the same
1059
# process. Commands that want to execute sub-commands must propagate
1060
# --verbose in their own way.
1061
if 'memory' in debug.debug_flags:
1062
trace.debug_memory('Process status after command:', short=False)
1063
option._verbosity_level = saved_verbosity_level
1066
def display_command(func):
1067
"""Decorator that suppresses pipe/interrupt errors."""
1068
def ignore_pipe(*args, **kwargs):
1070
result = func(*args, **kwargs)
1074
if getattr(e, 'errno', None) is None:
1076
if e.errno != errno.EPIPE:
1077
# Win32 raises IOError with errno=0 on a broken pipe
1078
if sys.platform != 'win32' or (e.errno not in (0, errno.EINVAL)):
1081
except KeyboardInterrupt:
1086
def install_bzr_command_hooks():
1087
"""Install the hooks to supply bzr's own commands."""
1088
if _list_bzr_commands in Command.hooks["list_commands"]:
1090
Command.hooks.install_named_hook("list_commands", _list_bzr_commands,
1092
Command.hooks.install_named_hook("get_command", _get_bzr_command,
1094
Command.hooks.install_named_hook("get_command", _get_plugin_command,
1095
"bzr plugin commands")
1096
Command.hooks.install_named_hook("get_command", _get_external_command,
1097
"bzr external command lookup")
1098
Command.hooks.install_named_hook("get_missing_command", _try_plugin_provider,
1099
"bzr plugin-provider-db check")
1102
def main(argv=None):
1103
"""Main entry point of command-line interface.
1105
:param argv: list of unicode command-line arguments similar to sys.argv.
1106
argv[0] is script name usually, it will be ignored.
1107
Don't pass here sys.argv because this list contains plain strings
1108
and not unicode; pass None instead.
1110
:return: exit code of bzr command.
1113
bzrlib.ui.ui_factory = bzrlib.ui.make_ui_for_terminal(
1114
sys.stdin, sys.stdout, sys.stderr)
1116
# Is this a final release version? If so, we should suppress warnings
1117
if bzrlib.version_info[3] == 'final':
1118
suppress_deprecation_warnings(override=True)
1120
argv = osutils.get_unicode_argv()
1124
# ensure all arguments are unicode strings
1126
if isinstance(a, unicode):
1129
new_argv.append(a.decode('ascii'))
1130
except UnicodeDecodeError:
1131
raise errors.BzrError("argv should be list of unicode strings.")
1133
ret = run_bzr_catch_errors(argv)
1134
bzrlib.ui.ui_factory.log_transport_activity(
1135
display=('bytes' in debug.debug_flags))
1136
trace.mutter("return code %d", ret)
1137
osutils.report_extension_load_failures()
1141
def run_bzr_catch_errors(argv):
1142
"""Run a bzr command with parameters as described by argv.
1144
This function assumed that that UI layer is setup, that symbol deprecations
1145
are already applied, and that unicode decoding has already been performed on argv.
1147
install_bzr_command_hooks()
1148
return exception_to_return_code(run_bzr, argv)
1151
def run_bzr_catch_user_errors(argv):
1152
"""Run bzr and report user errors, but let internal errors propagate.
1154
This is used for the test suite, and might be useful for other programs
1155
that want to wrap the commandline interface.
1157
install_bzr_command_hooks()
1159
return run_bzr(argv)
845
log_error('bzr: error: ' + e.args[0] + '\n')
848
log_error(' ' + h + '\n')
1160
850
except Exception, e:
1161
if (isinstance(e, (OSError, IOError))
1162
or not getattr(e, 'internal_error', True)):
1163
trace.report_exception(sys.exc_info(), sys.stderr)
1169
class HelpCommandIndex(object):
1170
"""A index for bzr help that returns commands."""
1173
self.prefix = 'commands/'
1175
def get_topics(self, topic):
1176
"""Search for topic amongst commands.
1178
:param topic: A topic to search for.
1179
:return: A list which is either empty or contains a single
1182
if topic and topic.startswith(self.prefix):
1183
topic = topic[len(self.prefix):]
1185
cmd = _get_cmd_object(topic)
1192
class Provider(object):
1193
'''Generic class to be overriden by plugins'''
1195
def plugin_for_command(self, cmd_name):
1196
'''Takes a command and returns the information for that plugin
1198
:return: A dictionary with all the available information
1199
for the requested plugin
1201
raise NotImplementedError
1204
class ProvidersRegistry(registry.Registry):
1205
'''This registry exists to allow other providers to exist'''
1208
for key, provider in self.iteritems():
1211
command_providers_registry = ProvidersRegistry()
851
log_error('bzr: exception: %s\n' % e)
852
log_error(' see .bzr.log for details\n')
853
traceback.print_exc(None, bzrlib.trace._tracefile)
854
traceback.print_exc(None, sys.stderr)
857
# TODO: Maybe nicer handling of IOError?
1214
861
if __name__ == '__main__':
1215
862
sys.exit(main(sys.argv))
864
##profile.run('main(sys.argv)')
added
removed
bzrlib/commands.py
