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# Copyright (C) 2004, 2005 by Canonical Ltd
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# Copyright (C) 2006 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""Bazaar-NG -- a free distributed version-control tool
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**WARNING: THIS IS AN UNSTABLE DEVELOPMENT VERSION**
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* Metadata format is not stable yet -- you may need to
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discard history in the future.
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* Many commands unimplemented or partially implemented.
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* Space-inefficient storage.
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* No merge operators yet.
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Show software version/licence/non-warranty.
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Start versioning the current directory
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Show revision history.
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bzr move FROM... DESTDIR
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Move one or more files to a different directory.
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Show changes from last revision to working copy.
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bzr commit -m 'MESSAGE'
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Store current state as new revision.
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bzr export [-r REVNO] DESTINATION
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Export the branch state at a previous version.
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Show summary of pending changes.
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Make a file not versioned.
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Show statistics about this branch.
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Verify history is stored safely.
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(for more type 'bzr help commands')
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import sys, os, time, types, shutil, tempfile, fnmatch, difflib, os.path
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from pprint import pprint
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# 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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from bzrlib.store import ImmutableStore
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from bzrlib.trace import mutter, note, log_error
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from bzrlib.errors import bailout, BzrError, BzrCheckError, BzrCommandError
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from bzrlib.osutils import quotefn, pumpfile, isdir, isfile
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from bzrlib.tree import RevisionTree, EmptyTree, WorkingTree, Tree
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from bzrlib.revision import Revision
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from bzrlib import Branch, Inventory, InventoryEntry, ScratchBranch, BZRDIR, \
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BZR_DIFF_FORMAT = "## Bazaar-NG diff, format 0 ##\n"
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BZR_PATCHNAME_FORMAT = 'cset:sha1:%s'
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## standard representation
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NONE_STRING = '(none)'
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def get_cmd_class(cmd):
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cmd = CMD_ALIASES.get(cmd, cmd)
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cmd_class = globals()['cmd_' + cmd.replace('-', '_')]
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raise BzrError("unknown command %r" % cmd)
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return cmd, cmd_class
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from bzrlib.symbol_versioning import (
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from bzrlib.option import Option
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def register_command(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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if k.startswith("cmd_"):
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k_unsquished = _unsquish_command_name(k)
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if k_unsquished not in plugin_cmds:
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plugin_cmds[k_unsquished] = cmd
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## trace.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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trace.log_error('Two plugins defined the same command: %r' % k)
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trace.log_error('Not loading the one in %r' % sys.modules[cmd.__module__])
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trace.log_error('Previously this command was registered from %r' %
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sys.modules[plugin_cmds[k_unsquished].__module__])
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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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assert cmd.startswith("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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builtins = bzrlib.builtins.__dict__
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for name in builtins:
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if name.startswith("cmd_"):
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real_name = _unsquish_command_name(name)
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r[real_name] = builtins[name]
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def 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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def plugin_command_names():
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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 canonical name and command class for a command.
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If true, plugin commands can override builtins.
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return _get_cmd_object(cmd_name, plugins_override)
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raise errors.BzrCommandError('unknown command "%s"' % cmd_name)
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def _get_cmd_object(cmd_name, plugins_override=True):
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"""Worker for get_cmd_object which raises KeyError rather than BzrCommandError."""
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from bzrlib.externalcommand import ExternalCommand
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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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# 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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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.
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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.
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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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takes_options = []
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encoding_type = 'strict'
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def __init__(self, options, arguments):
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"""Construct and run the command.
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Sets self.status to the return value of run()."""
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assert isinstance(options, dict)
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assert isinstance(arguments, dict)
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cmdargs = options.copy()
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cmdargs.update(arguments)
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assert self.__doc__ != Command.__doc__, \
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("No help message set for %r" % self)
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self.status = self.run(**cmdargs)
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"""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 _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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:return: A possibly empty list of unicode paths.
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Introduced in bzrlib 0.18.
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if sys.platform == 'win32':
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file_list = win32utils.glob_expand(file_list)
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return list(file_list)
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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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def get_help_text(self, additional_see_also=None, plain=True,
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see_also_as_links=False):
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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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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 = 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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options = option.get_optparser(self.options()).format_option_help()
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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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labels = sorted(sections.keys())
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result += ':%s:\n%s\n\n' % (label,sections[label])
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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 reST link for this entry
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see_also_links.append("`%s`_" % (item,))
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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 plan 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) 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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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, 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, label, section)
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label,section = line[1:-1],''
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elif label != None and len(line) > 1 and not line[0].isspace():
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save_section(sections, label, section)
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label,section = None,line
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section += '\n' + line
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save_section(sections, label, section)
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return summary, sections
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def get_help_topic(self):
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"""Return the commands help topic - its name."""
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def get_see_also(self, additional_terms=None):
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"""Return a list of help topics that are related to this command.
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The list is derived from the content of the _see_also attribute. Any
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duplicates are removed and the result is in lexical order.
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:param additional_terms: Additional help topics to cross-reference.
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:return: A list of help topics.
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see_also = set(getattr(self, '_see_also', []))
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see_also.update(additional_terms)
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return sorted(see_also)
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"""Return dict of valid options for this command.
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Maps from long option name to option object."""
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r = Option.STD_OPTIONS.copy()
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for o in self.takes_options:
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if isinstance(o, basestring):
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o = option.Option.OPTIONS[o]
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if o.name in std_names:
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self.supported_std_options.append(o.name)
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def _setup_outf(self):
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"""Return a file linked to stdout, which has proper encoding."""
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assert self.encoding_type in ['strict', 'exact', 'replace']
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# Originally I was using self.stdout, but that looks
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# *way* too much like sys.stdout
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if self.encoding_type == 'exact':
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# force sys.stdout to be binary stream on win32
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if sys.platform == 'win32':
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fileno = getattr(sys.stdout, 'fileno', None)
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msvcrt.setmode(fileno(), os.O_BINARY)
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self.outf = sys.stdout
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output_encoding = osutils.get_terminal_encoding()
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self.outf = codecs.getwriter(output_encoding)(sys.stdout,
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errors=self.encoding_type)
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# For whatever reason codecs.getwriter() does not advertise its encoding
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# it just returns the encoding of the wrapped file, which is completely
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# bogus. So set the attribute, so we can find the correct encoding later.
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self.outf.encoding = output_encoding
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def run_argv_aliases(self, argv, alias_argv=None):
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"""Parse the command line and run with extra aliases in alias_argv."""
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warn("Passing None for [] is deprecated from bzrlib 0.10",
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DeprecationWarning, stacklevel=2)
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args, opts = parse_args(self, argv, alias_argv)
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# Process the standard options
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if 'help' in opts: # e.g. bzr add --help
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sys.stdout.write(self.get_help_text())
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trace.set_verbosity_level(option._verbosity_level)
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if 'verbose' in self.supported_std_options:
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opts['verbose'] = trace.is_verbose()
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elif opts.has_key('verbose'):
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if 'quiet' in self.supported_std_options:
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opts['quiet'] = trace.is_quiet()
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elif opts.has_key('quiet'):
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# mix arguments and options into one dictionary
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cmdargs = _match_argform(self.name(), self.takes_args, args)
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for k, v in opts.items():
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cmdopts[k.replace('-', '_')] = v
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all_cmd_args = cmdargs.copy()
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all_cmd_args.update(cmdopts)
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return self.run(**all_cmd_args)
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"""Override this in sub-classes.
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"""Actually run the command.
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This is invoked with the options and arguments bound to
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keyword parameters.
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Return True if the command was successful, False if not.
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class cmd_status(Command):
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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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takes_options = ['all']
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def run(self, all=False):
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#import bzrlib.status
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#bzrlib.status.tree_status(Branch('.'))
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Branch('.').show_status(show_all=all)
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class cmd_cat_revision(Command):
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"""Write out metadata for a revision."""
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takes_args = ['revision_id']
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def run(self, revision_id):
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Branch('.').get_revision(revision_id).write_xml(sys.stdout)
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class cmd_revno(Command):
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"""Show current revision number.
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This is equal to the number of revisions on this branch."""
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print Branch('.').revno()
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class cmd_add(Command):
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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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TODO: Perhaps adding a file whose directly is not versioned should
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recursively add that parent, rather than giving an error?
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takes_args = ['file+']
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takes_options = ['verbose']
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def run(self, file_list, verbose=False):
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bzrlib.add.smart_add(file_list, verbose)
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def Relpath(Command):
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"""Show path of a file relative to root"""
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takes_args = ('filename')
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print Branch(self.args['filename']).relpath(filename)
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class cmd_inventory(Command):
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"""Show inventory of the current working copy or a revision."""
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takes_options = ['revision']
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def run(self, revision=None):
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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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class cmd_move(Command):
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"""Move files to a different directory.
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The destination must be a versioned directory in the same branch.
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takes_args = ['source$', 'dest']
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def run(self, source_list, dest):
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b.move([b.relpath(s) for s in source_list], b.relpath(dest))
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class cmd_rename(Command):
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"""Change the name of an entry.
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bzr rename frob.c frobber.c
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bzr rename src/frob.c lib/frob.c
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It is an error if the destination name exists.
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See also the 'move' command, which moves files into a different
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directory without changing their name.
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TODO: Some way to rename multiple files without invoking bzr for each
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takes_args = ['from_name', 'to_name']
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def run(self, from_name, to_name):
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b.rename_one(b.relpath(from_name), b.relpath(to_name))
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class cmd_renames(Command):
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"""Show list of renamed files.
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TODO: Option to show renames between two historical versions.
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TODO: Only show renames under dir, rather than in the whole branch.
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takes_args = ['dir?']
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def run(self, dir='.'):
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old_inv = b.basis_tree().inventory
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new_inv = b.read_working_inventory()
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renames = list(bzrlib.tree.find_renames(old_inv, new_inv))
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for old_name, new_name in renames:
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print "%s => %s" % (old_name, new_name)
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class cmd_info(Command):
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"""Show statistical information for this branch"""
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info.show_info(Branch('.'))
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class cmd_remove(Command):
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"""Make a file unversioned.
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This makes bzr stop tracking changes to a versioned file. It does
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not delete the working copy.
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takes_args = ['file+']
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takes_options = ['verbose']
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def run(self, 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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class cmd_file_id(Command):
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"""Print file_id of a particular file or directory.
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The file_id is assigned when the file is first added and remains the
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same through all revisions where the file exists, even when it is
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takes_args = ['filename']
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def run(self, filename):
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i = b.inventory.path2id(b.relpath(filename))
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bailout("%r is not a versioned file" % filename)
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class cmd_file_path(Command):
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"""Print path of file_ids to a file or directory.
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This prints one line for each directory down to the target,
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starting at the branch root."""
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takes_args = ['filename']
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def run(self, filename):
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fid = inv.path2id(b.relpath(filename))
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bailout("%r is not a versioned file" % filename)
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for fip in inv.get_idpath(fid):
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class cmd_revision_history(Command):
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"""Display list of revision ids on this branch."""
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for patchid in Branch('.').revision_history():
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class cmd_directories(Command):
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"""Display list of versioned directories in this branch."""
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for name, ie in Branch('.').read_working_inventory().directories():
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class cmd_init(Command):
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"""Make a directory into a versioned branch.
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Use this to create an empty branch, or before importing an
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Recipe for importing a tree of files:
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bzr commit -m 'imported project'
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Branch('.', init=True)
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class cmd_diff(Command):
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"""Show differences in working tree.
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If files are listed, only the changes in those files are listed.
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Otherwise, all changes for the tree are listed.
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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: Python difflib is not exactly the same as unidiff; should
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either fix it up or prefer to use an external diff.
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TODO: If a directory is given, diff everything under that.
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TODO: Selected-file diff is inefficient and doesn't show you
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TODO: This probably handles non-Unix newlines poorly.
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takes_args = ['file*']
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takes_options = ['revision']
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def run(self, revision=None, file_list=None):
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from bzrlib.diff import show_diff
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show_diff(Branch('.'), revision, file_list)
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class cmd_deleted(Command):
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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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def run(self, show_ids=False):
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new = b.working_tree()
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## TODO: Much more efficient way to do this: read in new
440
## directories with readdir, rather than stating each one. Same
441
## level of effort but possibly much less IO. (Or possibly not,
442
## if the directories are very large...)
444
for path, ie in old.inventory.iter_entries():
445
if not new.has_id(ie.file_id):
447
print '%-50s %s' % (path, ie.file_id)
451
class cmd_root(Command):
452
"""Show the tree root directory.
454
The root is the nearest enclosing directory with a .bzr control
456
takes_args = ['filename?']
457
def run(self, filename=None):
458
"""Print the branch root."""
459
print bzrlib.branch.find_branch_root(filename)
463
class cmd_log(Command):
464
"""Show log of this branch.
466
TODO: Options to show ids; to limit range; etc.
468
takes_options = ['timezone', 'verbose']
469
def run(self, timezone='original', verbose=False):
470
Branch('.').write_log(show_timezone=timezone, verbose=verbose)
473
class cmd_ls(Command):
474
"""List files in a tree.
476
TODO: Take a revision or remote path and list that tree instead.
479
def run(self, revision=None, verbose=False):
482
tree = b.working_tree()
484
tree = b.revision_tree(b.lookup_revision(revision))
486
for fp, fc, kind, fid in tree.list_files():
488
if kind == 'directory':
495
print '%-8s %s%s' % (fc, fp, kindch)
501
class cmd_unknowns(Command):
502
"""List unknown files"""
504
for f in Branch('.').unknowns():
509
class cmd_ignore(Command):
510
"""Ignore a command or pattern"""
511
takes_args = ['name_pattern']
513
def run(self, name_pattern):
516
# XXX: This will fail if it's a hardlink; should use an AtomicFile class.
517
f = open(b.abspath('.bzrignore'), 'at')
518
f.write(name_pattern + '\n')
521
inv = b.working_tree().inventory
522
if inv.path2id('.bzrignore'):
523
mutter('.bzrignore is already versioned')
525
mutter('need to make new .bzrignore file versioned')
526
b.add(['.bzrignore'])
530
class cmd_ignored(Command):
531
"""List ignored files and the patterns that matched them."""
533
tree = Branch('.').working_tree()
534
for path, file_class, kind, file_id in tree.list_files():
535
if file_class != 'I':
537
## XXX: Slightly inefficient since this was already calculated
538
pat = tree.is_ignored(path)
539
print '%-50s %s' % (path, pat)
542
class cmd_lookup_revision(Command):
543
"""Lookup the revision-id from a revision-number
546
bzr lookup-revision 33
549
def run(self, revno):
553
raise BzrError("not a valid revision-number: %r" % revno)
555
print Branch('.').lookup_revision(revno) or NONE_STRING
559
class cmd_export(Command):
560
"""Export past revision to destination directory.
562
If no revision is specified this exports the last committed revision."""
563
takes_args = ['dest']
564
takes_options = ['revision']
565
def run(self, dest, revno=None):
568
rh = b.revision_history[-1]
570
rh = b.lookup_revision(int(revno))
571
t = b.revision_tree(rh)
575
class cmd_cat(Command):
576
"""Write a file's text from a previous revision."""
578
takes_options = ['revision']
579
takes_args = ['filename']
581
def run(self, filename, revision=None):
583
raise BzrCommandError("bzr cat requires a revision number")
585
b.print_file(b.relpath(filename), int(revision))
588
class cmd_local_time_offset(Command):
589
"""Show the offset in seconds from GMT to local time."""
592
print bzrlib.osutils.local_time_offset()
596
class cmd_commit(Command):
597
"""Commit changes into a new revision.
599
TODO: Commit only selected files.
601
TODO: Run hooks on tree to-be-committed, and after commit.
603
TODO: Strict commit that fails if there are unknown or deleted files.
605
takes_options = ['message', 'verbose']
607
def run(self, message=None, verbose=False):
609
raise BzrCommandError("please specify a commit message")
610
Branch('.').commit(message, verbose=verbose)
613
class cmd_check(Command):
614
"""Validate consistency of branch history.
616
This command checks various invariants about the branch storage to
617
detect data corruption or bzr bugs.
619
takes_args = ['dir?']
620
def run(self, dir='.'):
622
bzrlib.check.check(Branch(dir, find_root=False))
626
class cmd_whoami(Command):
627
"""Show bzr user id."""
628
takes_options = ['email']
630
def run(self, email=False):
632
print bzrlib.osutils.user_email()
634
print bzrlib.osutils.username()
637
class cmd_selftest(Command):
638
"""Run internal test suite"""
641
failures, tests = 0, 0
643
import doctest, bzrlib.store, bzrlib.tests
644
bzrlib.trace.verbose = False
646
for m in bzrlib.store, bzrlib.inventory, bzrlib.branch, bzrlib.osutils, \
647
bzrlib.tree, bzrlib.tests, bzrlib.commands, bzrlib.add:
648
mf, mt = doctest.testmod(m)
651
print '%-40s %3d tests' % (m.__name__, mt),
653
print '%3d FAILED!' % mf
657
print '%-40s %3d tests' % ('total', tests),
659
print '%3d FAILED!' % failures
665
class cmd_version(Command):
666
"""Show version of bzr"""
671
print "bzr (bazaar-ng) %s" % bzrlib.__version__
672
print bzrlib.__copyright__
673
print "http://bazaar-ng.org/"
675
print "bzr comes with ABSOLUTELY NO WARRANTY. bzr is free software, and"
676
print "you may use, modify and redistribute it under the terms of the GNU"
677
print "General Public License version 2 or later."
680
class cmd_rocks(Command):
681
"""Statement of optimism."""
684
print "it sure does!"
687
class cmd_assert_fail(Command):
688
"""Test reporting of assertion failures"""
691
assert False, "always fails"
694
class cmd_help(Command):
695
"""Show help on a command or other topic.
697
For a list of all available commands, say 'bzr help commands'."""
698
takes_args = ['topic?']
700
def run(self, topic=None):
704
def help(topic=None):
707
elif topic == 'commands':
710
help_on_command(topic)
713
def help_on_command(cmdname):
714
cmdname = str(cmdname)
716
from inspect import getdoc
717
topic, cmdclass = get_cmd_class(cmdname)
719
doc = getdoc(cmdclass)
721
raise NotImplementedError("sorry, no detailed help yet for %r" % cmdname)
724
short, rest = doc.split('\n', 1)
729
print 'usage: bzr ' + topic,
730
for aname in cmdclass.takes_args:
731
aname = aname.upper()
732
if aname[-1] in ['$', '+']:
733
aname = aname[:-1] + '...'
734
elif aname[-1] == '?':
735
aname = '[' + aname[:-1] + ']'
736
elif aname[-1] == '*':
737
aname = '[' + aname[:-1] + '...]'
744
help_on_option(cmdclass.takes_options)
747
def help_on_option(options):
755
for shortname, longname in SHORT_OPTIONS.items():
757
l += ', -' + shortname
763
"""List all commands"""
767
for k, v in globals().items():
768
if k.startswith('cmd_'):
769
accu.append((k[4:].replace('_','-'), v))
771
for cmdname, cmdclass in accu:
775
help = inspect.getdoc(cmdclass)
777
print " " + help.split('\n', 1)[0]
780
######################################################################
784
# list of all available options; the rhs can be either None for an
785
# option that takes no argument, or a constructor function that checks
807
def parse_args(argv):
500
Return 0 or None if the command was successful, or a non-zero
501
shell error code if not. It's OK for this method to allow
502
an exception to raise up.
504
raise NotImplementedError('no implementation of command %r'
508
"""Return help message for this class."""
509
from inspect import getdoc
510
if self.__doc__ is Command.__doc__:
515
return _unsquish_command_name(self.__class__.__name__)
517
def plugin_name(self):
518
"""Get the name of the plugin that provides this command.
520
:return: The name of the plugin or None if the command is builtin.
522
mod_parts = self.__module__.split('.')
523
if len(mod_parts) >= 3 and mod_parts[1] == 'plugins':
529
def parse_args(command, argv, alias_argv=None):
808
530
"""Parse command line.
810
532
Arguments and options are parsed at this level before being passed
811
533
down to specific command handlers. This routine knows, from a
812
534
lookup table, something about the available options, what optargs
813
535
they take, and which commands will accept them.
815
>>> parse_args('--help'.split())
817
>>> parse_args('--version'.split())
818
([], {'version': True})
819
>>> parse_args('status --all'.split())
820
(['status'], {'all': True})
821
>>> parse_args('commit --message=biter'.split())
822
(['commit'], {'message': u'biter'})
827
# TODO: Maybe handle '--' to end options?
832
# option names must not be unicode
836
mutter(" got option %r" % a)
838
optname, optarg = a[2:].split('=', 1)
841
if optname not in OPTIONS:
842
bailout('unknown long option %r' % a)
845
if shortopt not in SHORT_OPTIONS:
846
bailout('unknown short option %r' % a)
847
optname = SHORT_OPTIONS[shortopt]
850
# XXX: Do we ever want to support this, e.g. for -r?
851
bailout('repeated option %r' % a)
853
optargfn = OPTIONS[optname]
857
bailout('option %r needs an argument' % a)
860
opts[optname] = optargfn(optarg)
863
bailout('option %r takes no argument' % optname)
537
# TODO: make it a method of the Command?
538
parser = option.get_optparser(command.options())
539
if alias_argv is not None:
540
args = alias_argv + argv
544
options, args = parser.parse_args(args)
545
opts = dict([(k, v) for k, v in options.__dict__.iteritems() if
546
v is not option.OptionParser.DEFAULT_VALUE])
868
547
return args, opts
873
550
def _match_argform(cmd, takes_args, args):
887
564
argdict[argname + '_list'] = None
888
565
elif ap[-1] == '+':
890
raise BzrCommandError("command %r needs one or more %s"
891
% (cmd, argname.upper()))
567
raise errors.BzrCommandError("command %r needs one or more %s"
568
% (cmd, argname.upper()))
893
570
argdict[argname + '_list'] = args[:]
895
572
elif ap[-1] == '$': # all but one
896
573
if len(args) < 2:
897
raise BzrCommandError("command %r needs one or more %s"
898
% (cmd, argname.upper()))
574
raise errors.BzrCommandError("command %r needs one or more %s"
575
% (cmd, argname.upper()))
899
576
argdict[argname + '_list'] = args[:-1]
902
579
# just a plain arg
905
raise BzrCommandError("command %r requires argument %s"
906
% (cmd, argname.upper()))
582
raise errors.BzrCommandError("command %r requires argument %s"
583
% (cmd, argname.upper()))
908
585
argdict[argname] = args.pop(0)
911
raise BzrCommandError("extra argument to command %s: %s"
588
raise errors.BzrCommandError("extra argument to command %s: %s"
595
def apply_profiled(the_callable, *args, **kwargs):
599
pffileno, pfname = tempfile.mkstemp()
601
prof = hotshot.Profile(pfname)
603
ret = prof.runcall(the_callable, *args, **kwargs) or 0
606
stats = hotshot.stats.load(pfname)
608
stats.sort_stats('cum') # 'time'
609
## XXX: Might like to write to stderr or the trace file instead but
610
## print_stats seems hardcoded to stdout
611
stats.print_stats(20)
618
def apply_lsprofiled(filename, the_callable, *args, **kwargs):
619
from bzrlib.lsprof import profile
620
ret, stats = profile(the_callable, *args, **kwargs)
626
trace.note('Profile data written to "%s".', filename)
630
def get_alias(cmd, config=None):
631
"""Return an expanded alias, or None if no alias exists.
634
Command to be checked for an alias.
636
Used to specify an alternative config to use,
637
which is especially useful for testing.
638
If it is unspecified, the global config will be used.
642
config = bzrlib.config.GlobalConfig()
643
alias = config.get_alias(cmd)
646
return [a.decode('utf-8') for a in shlex.split(alias.encode('utf-8'))]
918
650
def run_bzr(argv):
919
651
"""Execute a command.
921
653
This is similar to main(), but without all the trappings for
922
654
logging and error handling.
657
The command-line arguments, without the program name from argv[0]
658
These should already be decoded. All library/test code calling
659
run_bzr should be passing valid strings (don't need decoding).
661
Returns a command status or raises an exception.
663
Special master options: these must come before the command because
664
they control how the command is interpreted.
667
Do not load plugin modules at all
673
Only use builtin commands. (Plugins are still allowed to change
677
Run under the Python hotshot profiler.
680
Run under the Python lsprof profiler.
925
argv = [a.decode(bzrlib.user_encoding) for a in argv]
683
trace.mutter("bzr arguments: %r", argv)
685
opt_lsprof = opt_profile = opt_no_plugins = opt_builtin = \
686
opt_no_aliases = False
687
opt_lsprof_file = None
689
# --no-plugins is handled specially at a very early stage. We need
690
# to load plugins before doing other command parsing so that they
691
# can override commands, but this needs to happen first.
699
elif a == '--lsprof':
701
elif a == '--lsprof-file':
703
opt_lsprof_file = argv[i + 1]
705
elif a == '--no-plugins':
706
opt_no_plugins = True
707
elif a == '--no-aliases':
708
opt_no_aliases = True
709
elif a == '--builtin':
711
elif a.startswith('-D'):
712
debug.debug_flags.add(a[2:])
719
from bzrlib.builtins import cmd_help
720
cmd_help().run_argv_aliases([])
723
if argv[0] == '--version':
724
from bzrlib.builtins import cmd_version
725
cmd_version().run_argv_aliases([])
728
if not opt_no_plugins:
729
from bzrlib.plugin import load_plugins
732
from bzrlib.plugin import disable_plugins
737
if not opt_no_aliases:
738
alias_argv = get_alias(argv[0])
740
alias_argv = [a.decode(bzrlib.user_encoding) for a in alias_argv]
741
argv[0] = alias_argv.pop(0)
744
# We want only 'ascii' command names, but the user may have typed
745
# in a Unicode name. In that case, they should just get a
746
# 'command not found' error later.
748
cmd_obj = get_cmd_object(cmd, plugins_override=not opt_builtin)
749
run = cmd_obj.run_argv_aliases
750
run_argv = [argv, alias_argv]
928
args, opts = parse_args(argv[1:])
935
elif 'version' in opts:
938
cmd = str(args.pop(0))
940
log_error('usage: bzr COMMAND')
941
log_error(' try "bzr help"')
944
canonical_cmd, cmd_class = get_cmd_class(cmd)
947
if 'profile' in opts:
953
# check options are reasonable
954
allowed = cmd_class.takes_options
956
if oname not in allowed:
957
raise BzrCommandError("option %r is not allowed for command %r"
960
# mix arguments and options into one dictionary
961
cmdargs = _match_argform(cmd, cmd_class.takes_args, args)
963
for k, v in opts.items():
964
cmdopts[k.replace('-', '_')] = v
968
pffileno, pfname = tempfile.mkstemp()
754
ret = apply_lsprofiled(opt_lsprof_file, run, *run_argv)
756
ret = apply_profiled(run, *run_argv)
761
# reset, in case we may do other commands later within the same process
762
option._verbosity_level = 0
764
def display_command(func):
765
"""Decorator that suppresses pipe/interrupt errors."""
766
def ignore_pipe(*args, **kwargs):
970
prof = hotshot.Profile(pfname)
971
ret = prof.runcall(cmd_class, cmdopts, cmdargs) or 0
975
stats = hotshot.stats.load(pfname)
977
stats.sort_stats('time')
978
## XXX: Might like to write to stderr or the trace file instead but
979
## print_stats seems hardcoded to stdout
980
stats.print_stats(20)
988
cmdobj = cmd_class(cmdopts, cmdargs) or 0
992
def _report_exception(e, summary, quiet=False):
994
log_error('bzr: ' + summary)
995
bzrlib.trace.log_exception(e)
998
tb = sys.exc_info()[2]
999
exinfo = traceback.extract_tb(tb)
1001
sys.stderr.write(' at %s:%d in %s()\n' % exinfo[-1][:3])
1002
sys.stderr.write(' see ~/.bzr.log for debug information\n')
768
result = func(*args, **kwargs)
772
if getattr(e, 'errno', None) is None:
774
if e.errno != errno.EPIPE:
775
# Win32 raises IOError with errno=0 on a broken pipe
776
if sys.platform != 'win32' or (e.errno not in (0, errno.EINVAL)):
779
except KeyboardInterrupt:
1009
bzrlib.trace.create_tracefile(argv)
786
from bzrlib.ui.text import TextUIFactory
787
bzrlib.ui.ui_factory = TextUIFactory()
789
argv = [a.decode(bzrlib.user_encoding) for a in argv[1:]]
790
except UnicodeDecodeError:
791
raise errors.BzrError(("Parameter '%r' is unsupported by the current "
793
ret = run_bzr_catch_errors(argv)
794
trace.mutter("return code %d", ret)
798
def run_bzr_catch_errors(argv):
799
# Note: The except clause logic below should be kept in sync with the
800
# profile() routine in lsprof.py.
803
except (KeyboardInterrupt, Exception), e:
804
# used to handle AssertionError and KeyboardInterrupt
805
# specially here, but hopefully they're handled ok by the logger now
806
exitcode = trace.report_exception(sys.exc_info(), sys.stderr)
807
if os.environ.get('BZR_PDB'):
808
print '**** entering debugger'
810
pdb.post_mortem(sys.exc_traceback)
814
def run_bzr_catch_user_errors(argv):
815
"""Run bzr and report user errors, but let internal errors propagate.
817
This is used for the test suite, and might be useful for other programs
818
that want to wrap the commandline interface.
823
if (isinstance(e, (OSError, IOError))
824
or not getattr(e, 'internal_error', True)):
825
trace.report_exception(sys.exc_info(), sys.stderr)
831
class HelpCommandIndex(object):
832
"""A index for bzr help that returns commands."""
835
self.prefix = 'commands/'
837
def get_topics(self, topic):
838
"""Search for topic amongst commands.
840
:param topic: A topic to search for.
841
:return: A list which is either empty or contains a single
844
if topic and topic.startswith(self.prefix):
845
topic = topic[len(self.prefix):]
1014
# do this here to catch EPIPE
1018
quiet = isinstance(e, (BzrCommandError))
1019
_report_exception(e, 'error: ' + e.args[0], quiet=quiet)
1022
# some explanation or hints
1025
except AssertionError, e:
1026
msg = 'assertion failed'
1028
msg += ': ' + str(e)
1029
_report_exception(e, msg)
1031
except KeyboardInterrupt, e:
1032
_report_exception(e, 'interrupted', quiet=True)
1034
except Exception, e:
1036
if isinstance(e, IOError) and e.errno == errno.EPIPE:
1040
msg = str(e).rstrip('\n')
1041
_report_exception(e, msg, quiet)
1044
bzrlib.trace.close_trace()
847
cmd = _get_cmd_object(topic)
1047
854
if __name__ == '__main__':
added
removed
bzrlib/commands.py
