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# Copyright (C) 2005-2010 Canonical Ltd
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# Copyright (C) 2004, 2005 by Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# TODO: probably should say which arguments are candidates for glob
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# expansion on windows and do that at the command level.
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# TODO: Help messages for options.
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# TODO: Define arguments by objects, rather than just using names.
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# Those objects can specify the expected type of the argument, which
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# would help with validation and shell completion. 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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# would help with validation and shell completion.
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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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from inspect import getdoc
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from warnings import warn
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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.errors import (BzrError,
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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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from bzrlib.revisionspec import RevisionSpec
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from bzrlib.symbol_versioning import *
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from bzrlib.trace import mutter, note, log_error, warning, be_quiet
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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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"Utility function to help register a command"
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global plugin_cmds
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return plugin_cmds.register(cmd, decorate)
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if k.startswith("cmd_"):
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k_unsquished = _unsquish_command_name(k)
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if not plugin_cmds.has_key(k_unsquished):
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plugin_cmds[k_unsquished] = cmd
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mutter('registered plugin command %s', k_unsquished)
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if decorate and k_unsquished in builtin_command_names():
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return _builtin_commands()[k_unsquished]
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result = plugin_cmds[k_unsquished]
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plugin_cmds[k_unsquished] = cmd
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log_error('Two plugins defined the same command: %r' % k)
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log_error('Not loading the one in %r' % sys.modules[cmd.__module__])
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def _squish_command_name(cmd):
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def _unsquish_command_name(cmd):
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assert cmd.startswith("cmd_")
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return cmd[4:].replace('_','-')
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@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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builtins = bzrlib.builtins.__dict__
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if name.startswith("cmd_"):
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real_name = _unsquish_command_name(name)
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real_name = _unsquish_command_name(name)
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r[real_name] = builtins[name]
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def _list_bzr_commands(names):
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"""Find commands from bzr's core and plugins.
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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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"""Return list of builtin command names."""
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return _builtin_commands().keys()
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Use of all_command_names() is encouraged rather than builtin_command_names
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and/or plugin_command_names.
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return builtin_command_registry.keys()
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def plugin_command_names():
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"""Returns command names from commands registered by plugins."""
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return plugin_cmds.keys()
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def _get_cmd_dict(plugins_override=True):
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"""Return name->class mapping for all commands."""
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d = _builtin_commands()
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d.update(plugin_cmds)
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def get_all_cmds(plugins_override=True):
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"""Return canonical name and class for all registered commands."""
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for k, v in _get_cmd_dict(plugins_override=plugins_override).iteritems():
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def get_cmd_object(cmd_name, plugins_override=True):
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"""Return the command object for a command.
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"""Return the canonical name and command class for a command.
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If true, plugin commands can override builtins.
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return _get_cmd_object(cmd_name, plugins_override)
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raise errors.BzrCommandError('unknown command "%s"' % cmd_name)
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def _get_cmd_object(cmd_name, plugins_override=True, check_missing=True):
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"""Get a command object.
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:param cmd_name: The name of the command.
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:param plugins_override: Allow plugins to override builtins.
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:param check_missing: Look up commands not found in the regular index via
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the get_missing_command hook.
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:return: A Command object instance
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:raises KeyError: If no command is found.
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# We want only 'ascii' command names, but the user may have typed
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# in a Unicode name. In that case, they should just get a
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# 'command not found' error later.
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# In the future, we may actually support Unicode command names.
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for hook in Command.hooks['get_command']:
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cmd = hook(cmd, cmd_name)
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if cmd is not None and not plugins_override and not cmd.plugin_name():
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# We've found a non-plugin command, don't permit it to be
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if cmd is None and check_missing:
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for hook in Command.hooks['get_missing_command']:
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# Allow plugins to extend commands
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for hook in Command.hooks['extend_command']:
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def _try_plugin_provider(cmd_name):
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"""Probe for a plugin provider having cmd_name."""
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plugin_metadata, provider = probe_for_provider(cmd_name)
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raise errors.CommandAvailableInPlugin(cmd_name,
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plugin_metadata, provider)
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except errors.NoPluginAvailable:
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def probe_for_provider(cmd_name):
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"""Look for a provider for cmd_name.
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:param cmd_name: The command name.
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:return: plugin_metadata, provider for getting cmd_name.
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:raises NoPluginAvailable: When no provider can supply the plugin.
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# look for providers that provide this command but aren't installed
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for provider in command_providers_registry:
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return provider.plugin_for_command(cmd_name), provider
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except errors.NoPluginAvailable:
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raise errors.NoPluginAvailable(cmd_name)
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def _get_bzr_command(cmd_or_None, cmd_name):
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"""Get a command from bzr's core."""
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cmd_class = builtin_command_registry.get(cmd_name)
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def _get_external_command(cmd_or_None, cmd_name):
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"""Lookup a command that is a shell script."""
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# Only do external command lookups when no command is found so far.
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if cmd_or_None is not None:
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from bzrlib.externalcommand import ExternalCommand
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cmd_name = str(cmd_name) # not unicode
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# first look up this command under the specified name
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cmds = _get_cmd_dict(plugins_override=plugins_override)
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return cmds[cmd_name]()
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# look for any command which claims this as an alias
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for real_cmd_name, cmd_class in cmds.iteritems():
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if cmd_name in cmd_class.aliases:
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cmd_obj = ExternalCommand.find_command(cmd_name)
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def _get_plugin_command(cmd_or_None, cmd_name):
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"""Get a command from bzr's plugins."""
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return plugin_cmds.get(cmd_name)()
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for key in plugin_cmds.keys():
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info = plugin_cmds.get_info(key)
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if cmd_name in info.aliases:
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return plugin_cmds.get(key)()
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raise BzrCommandError("unknown command %r" % cmd_name)
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class Command(object):
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If true, this command isn't advertised. This is typically
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for commands intended for expert users.
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Command objects will get a 'outf' attribute, which has been
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setup to properly handle encoding of unicode strings.
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encoding_type determines what will happen when characters cannot
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strict - abort if we cannot decode
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replace - put in a bogus character (typically '?')
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exact - do not encode sys.stdout
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NOTE: by default on Windows, sys.stdout is opened as a text
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stream, therefore LF line-endings are converted to CRLF.
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When a command uses encoding_type = 'exact', then
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sys.stdout is forced to be a binary stream, and line-endings
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:cvar hooks: An instance of CommandHooks.
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takes_options = []
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encoding_type = 'strict'
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def __init__(self):
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"""Construct an instance of this command."""
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if self.__doc__ == Command.__doc__:
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warn("No help message set for %r" % self)
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# List of standard options directly supported
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self.supported_std_options = []
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def add_cleanup(self, cleanup_func, *args, **kwargs):
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"""Register a function to call after self.run returns or raises.
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Functions will be called in LIFO order.
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self._operation.add_cleanup(cleanup_func, *args, **kwargs)
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def cleanup_now(self):
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"""Execute and empty pending cleanup functions immediately.
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After cleanup_now all registered cleanups are forgotten. add_cleanup
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may be called again after cleanup_now; these cleanups will be called
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after self.run returns or raises (or when cleanup_now is next called).
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This is useful for releasing expensive or contentious resources (such
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as write locks) before doing further work that does not require those
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resources (such as writing results to self.outf). Note though, that
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as it releases all resources, this may release locks that the command
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wants to hold, so use should be done with care.
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self._operation.cleanup_now()
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@deprecated_method(deprecated_in((2, 1, 0)))
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def _maybe_expand_globs(self, file_list):
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"""Glob expand file_list if the platform does not do that itself.
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Not used anymore, now that the bzr command-line parser globs on
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:return: A possibly empty list of unicode paths.
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Introduced in bzrlib 0.18.
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"""Return single-line grammar for this command.
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Only describes arguments, not options.
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s = 'bzr ' + self.name() + ' '
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for aname in self.takes_args:
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aname = aname.upper()
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if aname[-1] in ['$', '+']:
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aname = aname[:-1] + '...'
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elif aname[-1] == '?':
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aname = '[' + aname[:-1] + ']'
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elif aname[-1] == '*':
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aname = '[' + aname[:-1] + '...]'
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s = s[:-1] # remove last space
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def get_help_text(self, additional_see_also=None, plain=True,
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see_also_as_links=False, verbose=True):
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"""Return a text string with help for this command.
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:param additional_see_also: Additional help topics to be
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:param plain: if False, raw help (reStructuredText) is
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returned instead of plain text.
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:param see_also_as_links: if True, convert items in 'See also'
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list to internal links (used by bzr_man rstx generator)
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:param verbose: if True, display the full help, otherwise
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leave out the descriptive sections and just display
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usage help (e.g. Purpose, Usage, Options) with a
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message explaining how to obtain full help.
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raise NotImplementedError("sorry, no detailed help yet for %r" % self.name())
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# Extract the summary (purpose) and sections out from the text
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purpose,sections,order = self._get_help_parts(doc)
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# If a custom usage section was provided, use it
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if sections.has_key('Usage'):
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usage = sections.pop('Usage')
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usage = self._usage()
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# The header is the purpose and usage
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result += ':Purpose: %s\n' % purpose
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if usage.find('\n') >= 0:
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result += ':Usage:\n%s\n' % usage
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result += ':Usage: %s\n' % usage
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# XXX: optparse implicitly rewraps the help, and not always perfectly,
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# so we get <https://bugs.launchpad.net/bzr/+bug/249908>. -- mbp
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options = option.get_optparser(self.options()).format_option_help()
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# XXX: According to the spec, ReST option lists actually don't support
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# options like --1.9 so that causes syntax errors (in Sphinx at least).
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# As that pattern always appears in the commands that break, we trap
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# on that and then format that block of 'format' options as a literal
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if not plain and options.find(' --1.9 ') != -1:
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options = options.replace(' format:\n', ' format::\n\n', 1)
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if options.startswith('Options:'):
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result += ':' + options
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elif options.startswith('options:'):
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# Python 2.4 version of optparse
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result += ':Options:' + options[len('options:'):]
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# Add the description, indenting it 2 spaces
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# to match the indentation of the options
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if sections.has_key(None):
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text = sections.pop(None)
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text = '\n '.join(text.splitlines())
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result += ':%s:\n %s\n\n' % ('Description',text)
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# Add the custom sections (e.g. Examples). Note that there's no need
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# to indent these as they must be indented already in the source.
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if sections.has_key(label):
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result += ':%s:\n%s\n' % (label,sections[label])
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result += ("See bzr help %s for more details and examples.\n\n"
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# Add the aliases, source (plug-in) and see also links, if any
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result += ':Aliases: '
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result += ', '.join(self.aliases) + '\n'
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plugin_name = self.plugin_name()
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if plugin_name is not None:
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result += ':From: plugin "%s"\n' % plugin_name
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see_also = self.get_see_also(additional_see_also)
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if not plain and see_also_as_links:
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for item in see_also:
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# topics doesn't have an independent section
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# so don't create a real link
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see_also_links.append(item)
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# Use a Sphinx link for this entry
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link_text = ":doc:`%s <%s-help>`" % (item, item)
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see_also_links.append(link_text)
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see_also = see_also_links
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result += ':See also: '
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result += ', '.join(see_also) + '\n'
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# If this will be rendered as plain text, convert it
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import bzrlib.help_topics
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result = bzrlib.help_topics.help_as_plain_text(result)
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def _get_help_parts(text):
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"""Split help text into a summary and named sections.
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:return: (summary,sections,order) where summary is the top line and
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sections is a dictionary of the rest indexed by section name.
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order is the order the section appear in the text.
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A section starts with a heading line of the form ":xxx:".
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Indented text on following lines is the section value.
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All text found outside a named section is assigned to the
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default section which is given the key of None.
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def save_section(sections, order, label, section):
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if sections.has_key(label):
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sections[label] += '\n' + section
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sections[label] = section
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lines = text.rstrip().splitlines()
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summary = lines.pop(0)
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label,section = None,''
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if line.startswith(':') and line.endswith(':') and len(line) > 2:
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save_section(sections, order, label, section)
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label,section = line[1:-1],''
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elif (label is not None) and len(line) > 1 and not line[0].isspace():
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save_section(sections, order, label, section)
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label,section = None,line
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section += '\n' + line
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save_section(sections, order, label, section)
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return summary, sections, order
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def get_help_topic(self):
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"""Return the commands help topic - its name."""
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def get_see_also(self, additional_terms=None):
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"""Return a list of help topics that are related to this command.
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The list is derived from the content of the _see_also attribute. Any
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duplicates are removed and the result is in lexical order.
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:param additional_terms: Additional help topics to cross-reference.
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:return: A list of help topics.
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see_also = set(getattr(self, '_see_also', []))
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see_also.update(additional_terms)
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return sorted(see_also)
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def options(self):
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"""Return dict of valid options for this command.
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Maps from long option name to option object."""
638
r = Option.STD_OPTIONS.copy()
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r['help'] = Option.OPTIONS['help']
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for o in self.takes_options:
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if isinstance(o, basestring):
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o = option.Option.OPTIONS[o]
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if not isinstance(o, Option):
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o = Option.OPTIONS[o]
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if o.name in std_names:
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self.supported_std_options.append(o.name)
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def _setup_outf(self):
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"""Return a file linked to stdout, which has proper encoding."""
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self.outf = ui.ui_factory.make_output_stream(
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encoding_type=self.encoding_type)
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@deprecated_method(zero_eight)
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def run_argv(self, argv):
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"""Parse command line and run.
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See run_argv_aliases for the 0.8 and beyond api.
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return self.run_argv_aliases(argv)
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def run_argv_aliases(self, argv, alias_argv=None):
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"""Parse the command line and run with extra aliases in alias_argv."""
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args, opts = parse_args(self, argv, alias_argv)
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# Process the standard options
658
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if 'help' in opts: # e.g. bzr add --help
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sys.stdout.write(self.get_help_text())
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if 'usage' in opts: # e.g. bzr add --usage
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sys.stdout.write(self.get_help_text(verbose=False))
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trace.set_verbosity_level(option._verbosity_level)
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if 'verbose' in self.supported_std_options:
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opts['verbose'] = trace.is_verbose()
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elif opts.has_key('verbose'):
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if 'quiet' in self.supported_std_options:
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opts['quiet'] = trace.is_quiet()
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elif opts.has_key('quiet'):
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from bzrlib.help import help_on_command
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help_on_command(self.name())
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# XXX: This should be handled by the parser
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allowed_names = self.options().keys()
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if oname not in allowed_names:
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raise BzrCommandError("option '--%s' is not allowed for"
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" command %r" % (oname, self.name()))
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# mix arguments and options into one dictionary
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cmdargs = _match_argform(self.name(), self.takes_args, args)
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return _unsquish_command_name(self.__class__.__name__)
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def plugin_name(self):
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"""Get the name of the plugin that provides this command.
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:return: The name of the plugin or None if the command is builtin.
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mod_parts = self.__module__.split('.')
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if len(mod_parts) >= 3 and mod_parts[1] == 'plugins':
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def parse_spec(spec):
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>>> parse_spec("../@")
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>>> parse_spec("../f/@35")
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>>> parse_spec('./@revid:john@arbash-meinel.com-20050711044610-3ca0327c6a222f67')
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['.', 'revid:john@arbash-meinel.com-20050711044610-3ca0327c6a222f67']
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parsed = spec.split('/@')
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assert len(parsed) == 2
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class CommandHooks(Hooks):
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"""Hooks related to Command object creation/enumeration."""
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"""Create the default hooks.
762
These are all empty initially, because by default nothing should get
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self.create_hook(HookPoint('extend_command',
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"Called after creating a command object to allow modifications "
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"such as adding or removing options, docs etc. Called with the "
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"new bzrlib.commands.Command object.", (1, 13), None))
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self.create_hook(HookPoint('get_command',
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"Called when creating a single command. Called with "
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"(cmd_or_None, command_name). get_command should either return "
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"the cmd_or_None parameter, or a replacement Command object that "
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"should be used for the command. Note that the Command.hooks "
775
"hooks are core infrastructure. Many users will prefer to use "
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"bzrlib.commands.register_command or plugin_cmds.register_lazy.",
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self.create_hook(HookPoint('get_missing_command',
779
"Called when creating a single command if no command could be "
780
"found. Called with (command_name). get_missing_command should "
781
"either return None, or a Command object to be used for the "
782
"command.", (1, 17), None))
783
self.create_hook(HookPoint('list_commands',
784
"Called when enumerating commands. Called with a set of "
785
"cmd_name strings for all the commands found so far. This set "
786
" is safe to mutate - e.g. to remove a command. "
787
"list_commands should return the updated set of command names.",
790
Command.hooks = CommandHooks()
288
parsed[1] = int(parsed[1])
290
pass # We can allow stuff like ./@revid:blahblahblah
294
parsed = [spec, None]
793
297
def parse_args(command, argv, alias_argv=None):
794
298
"""Parse command line.
796
300
Arguments and options are parsed at this level before being passed
797
301
down to specific command handlers. This routine knows, from a
798
302
lookup table, something about the available options, what optargs
799
303
they take, and which commands will accept them.
801
# TODO: make it a method of the Command?
802
parser = option.get_optparser(command.options())
803
if alias_argv is not None:
804
args = alias_argv + argv
808
options, args = parser.parse_args(args)
809
opts = dict([(k, v) for k, v in options.__dict__.iteritems() if
810
v is not option.OptionParser.DEFAULT_VALUE])
305
# TODO: chop up this beast; make it a method of the Command
310
cmd_options = command.options()
312
proc_aliasarg = True # Are we processing alias_argv now?
313
for proc_argv in alias_argv, argv:
320
# We've received a standalone -- No more flags
324
# option names must not be unicode
328
mutter(" got option %r", a)
330
optname, optarg = a[2:].split('=', 1)
333
if optname not in cmd_options:
334
raise BzrOptionError('unknown long option %r for'
339
if shortopt in Option.SHORT_OPTIONS:
340
# Multi-character options must have a space to delimit
342
# ^^^ what does this mean? mbp 20051014
343
optname = Option.SHORT_OPTIONS[shortopt].name
345
# Single character short options, can be chained,
346
# and have their value appended to their name
348
if shortopt not in Option.SHORT_OPTIONS:
349
# We didn't find the multi-character name, and we
350
# didn't find the single char name
351
raise BzrError('unknown short option %r' % a)
352
optname = Option.SHORT_OPTIONS[shortopt].name
355
# There are extra things on this option
356
# see if it is the value, or if it is another
358
optargfn = Option.OPTIONS[optname].type
360
# This option does not take an argument, so the
361
# next entry is another short option, pack it
363
proc_argv.insert(0, '-' + a[2:])
365
# This option takes an argument, so pack it
369
if optname not in cmd_options:
370
raise BzrOptionError('unknown short option %r for'
372
(shortopt, command.name()))
374
# XXX: Do we ever want to support this, e.g. for -r?
376
raise BzrError('repeated option %r' % a)
377
elif optname in alias_opts:
378
# Replace what's in the alias with what's in the real
380
del alias_opts[optname]
382
proc_argv.insert(0, a)
385
raise BzrError('repeated option %r' % a)
387
option_obj = cmd_options[optname]
388
optargfn = option_obj.type
392
raise BzrError('option %r needs an argument' % a)
394
optarg = proc_argv.pop(0)
395
opts[optname] = optargfn(optarg)
397
alias_opts[optname] = optargfn(optarg)
400
raise BzrError('option %r takes no argument' % optname)
403
alias_opts[optname] = True
406
proc_aliasarg = False # Done with alias argv
811
407
return args, opts
896
475
os.remove(pfname)
899
def exception_to_return_code(the_callable, *args, **kwargs):
900
"""UI level helper for profiling and coverage.
902
This transforms exceptions into a return value of 3. As such its only
903
relevant to the UI layer, and should never be called where catching
904
exceptions may be desirable.
907
return the_callable(*args, **kwargs)
908
except (KeyboardInterrupt, Exception), e:
909
# used to handle AssertionError and KeyboardInterrupt
910
# specially here, but hopefully they're handled ok by the logger now
911
exc_info = sys.exc_info()
912
exitcode = trace.report_exception(exc_info, sys.stderr)
913
if os.environ.get('BZR_PDB'):
914
print '**** entering debugger'
917
if sys.version_info[:2] < (2, 6):
919
# pdb.post_mortem(tb)
920
# but because pdb.post_mortem gives bad results for tracebacks
921
# from inside generators, we do it manually.
922
# (http://bugs.python.org/issue4150, fixed in Python 2.6)
924
# Setup pdb on the traceback
927
p.setup(tb.tb_frame, tb)
928
# Point the debugger at the deepest frame of the stack
929
p.curindex = len(p.stack) - 1
930
p.curframe = p.stack[p.curindex][0]
931
# Start the pdb prompt.
932
p.print_stack_entry(p.stack[p.curindex])
940
478
def apply_lsprofiled(filename, the_callable, *args, **kwargs):
941
479
from bzrlib.lsprof import profile
942
ret, stats = profile(exception_to_return_code, the_callable, *args, **kwargs)
481
ret, stats = profile(the_callable, *args, **kwargs)
944
483
if filename is None:
948
trace.note('Profile data written to "%s".', filename)
487
cPickle.dump(stats, open(filename, 'w'), 2)
488
print 'Profile data written to %r.' % filename
952
@deprecated_function(deprecated_in((2, 2, 0)))
953
def shlex_split_unicode(unsplit):
954
return cmdline.split(unsplit)
957
def get_alias(cmd, config=None):
958
"""Return an expanded alias, or None if no alias exists.
961
Command to be checked for an alias.
963
Used to specify an alternative config to use,
964
which is especially useful for testing.
965
If it is unspecified, the global config will be used.
969
config = bzrlib.config.GlobalConfig()
970
alias = config.get_alias(cmd)
493
"""Return an expanded alias, or None if no alias exists"""
495
alias = bzrlib.config.GlobalConfig().get_alias(cmd)
972
return cmdline.split(alias)
497
return alias.split(' ')
976
def run_bzr(argv, load_plugins=load_plugins, disable_plugins=disable_plugins):
977
502
"""Execute a command.
979
:param argv: The command-line arguments, without the program name from
980
argv[0] These should already be decoded. All library/test code calling
981
run_bzr should be passing valid strings (don't need decoding).
982
:param load_plugins: What function to call when triggering plugin loading.
983
This function should take no arguments and cause all plugins to be
985
:param disable_plugins: What function to call when disabling plugin
986
loading. This function should take no arguments and cause all plugin
987
loading to be prohibited (so that code paths in your application that
988
know about some plugins possibly being present will fail to import
989
those plugins even if they are installed.)
990
:return: Returns a command exit code or raises an exception.
504
This is similar to main(), but without all the trappings for
505
logging and error handling.
508
The command-line arguments, without the program name from argv[0]
510
Returns a command status or raises an exception.
992
512
Special master options: these must come before the command because
993
513
they control how the command is interpreted.
1044
555
opt_no_aliases = True
1045
556
elif a == '--builtin':
1046
557
opt_builtin = True
1047
elif a == '--concurrency':
1048
os.environ['BZR_CONCURRENCY'] = argv[i + 1]
1050
elif a == '--coverage':
1051
opt_coverage_dir = argv[i + 1]
1053
elif a.startswith('-D'):
1054
debug.debug_flags.add(a[2:])
558
elif a in ('--quiet', '-q'):
1056
561
argv_copy.append(a)
1059
debug.set_debug_flags_from_config()
565
if (not argv) or (argv[0] == '--help'):
566
from bzrlib.help import help
573
if argv[0] == '--version':
574
from bzrlib.builtins import show_version
1061
578
if not opt_no_plugins:
579
from bzrlib.plugin import load_plugins
582
from bzrlib.plugin import disable_plugins
1064
583
disable_plugins()
1068
get_cmd_object('help').run_argv_aliases([])
1071
if argv[0] == '--version':
1072
get_cmd_object('version').run_argv_aliases([])
1075
585
alias_argv = None
1077
587
if not opt_no_aliases:
1078
588
alias_argv = get_alias(argv[0])
1080
user_encoding = osutils.get_user_encoding()
1081
alias_argv = [a.decode(user_encoding) for a in alias_argv]
590
alias_argv = [a.decode(bzrlib.user_encoding) for a in alias_argv]
1082
591
argv[0] = alias_argv.pop(0)
1085
# We want only 'ascii' command names, but the user may have typed
1086
# in a Unicode name. In that case, they should just get a
1087
# 'command not found' error later.
593
cmd = str(argv.pop(0))
1089
595
cmd_obj = get_cmd_object(cmd, plugins_override=not opt_builtin)
1090
run = cmd_obj.run_argv_aliases
1091
run_argv = [argv, alias_argv]
596
if not getattr(cmd_obj.run_argv, 'is_deprecated', False):
597
run = cmd_obj.run_argv
600
run = cmd_obj.run_argv_aliases
601
run_argv = [argv, alias_argv]
1094
# We can be called recursively (tests for example), but we don't want
1095
# the verbosity level to propagate.
1096
saved_verbosity_level = option._verbosity_level
1097
option._verbosity_level = 0
1099
if opt_coverage_dir:
1101
'--coverage ignored, because --lsprof is in use.')
1102
605
ret = apply_lsprofiled(opt_lsprof_file, run, *run_argv)
1103
606
elif opt_profile:
1104
if opt_coverage_dir:
1106
'--coverage ignored, because --profile is in use.')
1107
607
ret = apply_profiled(run, *run_argv)
1108
elif opt_coverage_dir:
1109
ret = apply_coveraged(opt_coverage_dir, run, *run_argv)
1111
609
ret = run(*run_argv)
1114
# reset, in case we may do other commands later within the same
1115
# process. Commands that want to execute sub-commands must propagate
1116
# --verbose in their own way.
1117
if 'memory' in debug.debug_flags:
1118
trace.debug_memory('Process status after command:', short=False)
1119
option._verbosity_level = saved_verbosity_level
612
# reset, in case we may do other commands later within the same process
1122
615
def display_command(func):
1123
616
"""Decorator that suppresses pipe/interrupt errors."""
1127
620
sys.stdout.flush()
1129
622
except IOError, e:
1130
if getattr(e, 'errno', None) is None:
623
if not hasattr(e, 'errno'):
1132
625
if e.errno != errno.EPIPE:
1133
# Win32 raises IOError with errno=0 on a broken pipe
1134
if sys.platform != 'win32' or (e.errno not in (0, errno.EINVAL)):
1137
628
except KeyboardInterrupt:
1139
630
return ignore_pipe
1142
def install_bzr_command_hooks():
1143
"""Install the hooks to supply bzr's own commands."""
1144
if _list_bzr_commands in Command.hooks["list_commands"]:
1146
Command.hooks.install_named_hook("list_commands", _list_bzr_commands,
1148
Command.hooks.install_named_hook("get_command", _get_bzr_command,
1150
Command.hooks.install_named_hook("get_command", _get_plugin_command,
1151
"bzr plugin commands")
1152
Command.hooks.install_named_hook("get_command", _get_external_command,
1153
"bzr external command lookup")
1154
Command.hooks.install_named_hook("get_missing_command", _try_plugin_provider,
1155
"bzr plugin-provider-db check")
1159
def _specified_or_unicode_argv(argv):
1160
# For internal or testing use, argv can be passed. Otherwise, get it from
1161
# the process arguments in a unicode-safe way.
1163
return osutils.get_unicode_argv()
1167
# ensure all arguments are unicode strings
1169
if isinstance(a, unicode):
1172
new_argv.append(a.decode('ascii'))
1173
except UnicodeDecodeError:
1174
raise errors.BzrError("argv should be list of unicode strings.")
1178
def main(argv=None):
1179
"""Main entry point of command-line interface.
1181
Typically `bzrlib.initialize` should be called first.
1183
:param argv: list of unicode command-line arguments similar to sys.argv.
1184
argv[0] is script name usually, it will be ignored.
1185
Don't pass here sys.argv because this list contains plain strings
1186
and not unicode; pass None instead.
1188
:return: exit code of bzr command.
1190
argv = _specified_or_unicode_argv(argv)
1191
_register_builtin_commands()
1192
ret = run_bzr_catch_errors(argv)
1193
bzrlib.ui.ui_factory.log_transport_activity(
1194
display=('bytes' in debug.debug_flags))
1195
trace.mutter("return code %d", ret)
635
from bzrlib.ui.text import TextUIFactory
636
## bzrlib.trace.enable_default_logging()
637
bzrlib.trace.log_startup(argv)
638
bzrlib.ui.ui_factory = TextUIFactory()
639
ret = run_bzr_catch_errors(argv[1:])
640
mutter("return code %d", ret)
1199
644
def run_bzr_catch_errors(argv):
1200
"""Run a bzr command with parameters as described by argv.
1202
This function assumed that that UI layer is setup, that symbol deprecations
1203
are already applied, and that unicode decoding has already been performed on argv.
1205
# done here so that they're covered for every test run
1206
install_bzr_command_hooks()
1207
return exception_to_return_code(run_bzr, argv)
1210
def run_bzr_catch_user_errors(argv):
1211
"""Run bzr and report user errors, but let internal errors propagate.
1213
This is used for the test suite, and might be useful for other programs
1214
that want to wrap the commandline interface.
1216
# done here so that they're covered for every test run
1217
install_bzr_command_hooks()
1219
return run_bzr(argv)
649
# do this here inside the exception wrappers to catch EPIPE
1220
651
except Exception, e:
1221
if (isinstance(e, (OSError, IOError))
1222
or not getattr(e, 'internal_error', True)):
1223
trace.report_exception(sys.exc_info(), sys.stderr)
1229
class HelpCommandIndex(object):
1230
"""A index for bzr help that returns commands."""
1233
self.prefix = 'commands/'
1235
def get_topics(self, topic):
1236
"""Search for topic amongst commands.
1238
:param topic: A topic to search for.
1239
:return: A list which is either empty or contains a single
1242
if topic and topic.startswith(self.prefix):
1243
topic = topic[len(self.prefix):]
1245
cmd = _get_cmd_object(topic, check_missing=False)
1252
class Provider(object):
1253
'''Generic class to be overriden by plugins'''
1255
def plugin_for_command(self, cmd_name):
1256
'''Takes a command and returns the information for that plugin
1258
:return: A dictionary with all the available information
1259
for the requested plugin
1261
raise NotImplementedError
1264
class ProvidersRegistry(registry.Registry):
1265
'''This registry exists to allow other providers to exist'''
1268
for key, provider in self.iteritems():
1271
command_providers_registry = ProvidersRegistry()
652
# used to handle AssertionError and KeyboardInterrupt
653
# specially here, but hopefully they're handled ok by the logger now
655
if (isinstance(e, IOError)
656
and hasattr(e, 'errno')
657
and e.errno == errno.EPIPE):
658
bzrlib.trace.note('broken pipe')
661
bzrlib.trace.log_exception()
662
if os.environ.get('BZR_PDB'):
663
print '**** entering debugger'
665
pdb.post_mortem(sys.exc_traceback)
668
if __name__ == '__main__':
669
sys.exit(main(sys.argv))
added
removed
bzrlib/commands.py
