36
164
def _unsquish_command_name(cmd):
37
assert cmd.startswith("cmd_")
38
165
return cmd[4:].replace('_','-')
41
"""Return canonical name and class for all registered commands."""
42
for k, v in globals().iteritems():
43
if k.startswith("cmd_"):
44
yield _unsquish_command_name(k), v
46
def get_cmd_class(cmd):
47
"""Return the canonical name and command class for a command.
49
cmd = str(cmd) # not unicode
51
# first look up this command under the specified name
53
return cmd, globals()[_squish_command_name(cmd)]
57
# look for any command which claims this as an alias
58
for cmdname, cmdclass in get_all_cmds():
59
if cmd in cmdclass.aliases:
60
return cmdname, cmdclass
62
cmdclass = ExternalCommand.find_command(cmd)
66
raise BzrCommandError("unknown command %r" % cmd)
168
@deprecated_function(deprecated_in((2, 2, 0)))
169
def _builtin_commands():
170
"""Return a dict of {name: cmd_class} for builtin commands.
172
:deprecated: Use the builtin_command_registry registry instead
174
# return dict(name: cmd_class)
175
return dict(builtin_command_registry.items())
178
def _register_builtin_commands():
179
if builtin_command_registry.keys():
182
import bzrlib.builtins
183
for cmd_class in _scan_module_for_commands(bzrlib.builtins).values():
184
builtin_command_registry.register(cmd_class)
185
bzrlib.builtins._register_lazy_builtins()
188
def _scan_module_for_commands(module):
190
for name, obj in module.__dict__.iteritems():
191
if name.startswith("cmd_"):
192
real_name = _unsquish_command_name(name)
197
def _list_bzr_commands(names):
198
"""Find commands from bzr's core and plugins.
200
This is not the public interface, just the default hook called by all_command_names.
202
# to eliminate duplicates
203
names.update(builtin_command_names())
204
names.update(plugin_command_names())
208
def all_command_names():
209
"""Return a set of all command names."""
211
for hook in Command.hooks['list_commands']:
214
raise AssertionError(
215
'hook %s returned None' % Command.hooks.get_hook_name(hook))
219
def builtin_command_names():
220
"""Return list of builtin command names.
222
Use of all_command_names() is encouraged rather than builtin_command_names
223
and/or plugin_command_names.
225
return builtin_command_registry.keys()
228
def plugin_command_names():
229
"""Returns command names from commands registered by plugins."""
230
return plugin_cmds.keys()
233
def get_cmd_object(cmd_name, plugins_override=True):
234
"""Return the command object for a command.
237
If true, plugin commands can override builtins.
240
return _get_cmd_object(cmd_name, plugins_override)
242
raise errors.BzrCommandError('unknown command "%s"' % cmd_name)
245
def _get_cmd_object(cmd_name, plugins_override=True, check_missing=True):
246
"""Get a command object.
248
:param cmd_name: The name of the command.
249
:param plugins_override: Allow plugins to override builtins.
250
:param check_missing: Look up commands not found in the regular index via
251
the get_missing_command hook.
252
:return: A Command object instance
253
:raises KeyError: If no command is found.
255
# We want only 'ascii' command names, but the user may have typed
256
# in a Unicode name. In that case, they should just get a
257
# 'command not found' error later.
258
# In the future, we may actually support Unicode command names.
261
for hook in Command.hooks['get_command']:
262
cmd = hook(cmd, cmd_name)
263
if cmd is not None and not plugins_override and not cmd.plugin_name():
264
# We've found a non-plugin command, don't permit it to be
267
if cmd is None and check_missing:
268
for hook in Command.hooks['get_missing_command']:
275
# Allow plugins to extend commands
276
for hook in Command.hooks['extend_command']:
281
def _try_plugin_provider(cmd_name):
282
"""Probe for a plugin provider having cmd_name."""
284
plugin_metadata, provider = probe_for_provider(cmd_name)
285
raise errors.CommandAvailableInPlugin(cmd_name,
286
plugin_metadata, provider)
287
except errors.NoPluginAvailable:
291
def probe_for_provider(cmd_name):
292
"""Look for a provider for cmd_name.
294
:param cmd_name: The command name.
295
:return: plugin_metadata, provider for getting cmd_name.
296
:raises NoPluginAvailable: When no provider can supply the plugin.
298
# look for providers that provide this command but aren't installed
299
for provider in command_providers_registry:
301
return provider.plugin_for_command(cmd_name), provider
302
except errors.NoPluginAvailable:
304
raise errors.NoPluginAvailable(cmd_name)
307
def _get_bzr_command(cmd_or_None, cmd_name):
308
"""Get a command from bzr's core."""
310
cmd_class = builtin_command_registry.get(cmd_name)
318
def _get_external_command(cmd_or_None, cmd_name):
319
"""Lookup a command that is a shell script."""
320
# Only do external command lookups when no command is found so far.
321
if cmd_or_None is not None:
323
from bzrlib.externalcommand import ExternalCommand
324
cmd_obj = ExternalCommand.find_command(cmd_name)
329
def _get_plugin_command(cmd_or_None, cmd_name):
330
"""Get a command from bzr's plugins."""
332
return plugin_cmds.get(cmd_name)()
335
for key in plugin_cmds.keys():
336
info = plugin_cmds.get_info(key)
337
if cmd_name in info.aliases:
338
return plugin_cmds.get(key)()
342
class Command(object):
70
343
"""Base class for commands.
345
Commands are the heart of the command-line bzr interface.
347
The command object mostly handles the mapping of command-line
348
parameters into one or more bzrlib operations, and of the results
351
Commands normally don't have any state. All their arguments are
352
passed in to the run method. (Subclasses may take a different
353
policy if the behaviour of the instance needs to depend on e.g. a
354
shell plugin and not just its Python class.)
72
356
The docstring for an actual command should give a single-line
73
357
summary, then a complete description of the command. A grammar
74
358
description will be inserted.
361
Other accepted names for this command.
77
364
List of argument forms, marked with whether they are optional,
369
['to_location', 'from_branch?', 'file*']
371
'to_location' is required
372
'from_branch' is optional
373
'file' can be specified 0 or more times
81
List of options that may be given for this command.
376
List of options that may be given for this command. These can
377
be either strings, referring to globally-defined options,
378
or option objects. Retrieve through options().
84
If true, this command isn't advertised.
381
If true, this command isn't advertised. This is typically
382
for commands intended for expert users.
385
Command objects will get a 'outf' attribute, which has been
386
setup to properly handle encoding of unicode strings.
387
encoding_type determines what will happen when characters cannot
389
strict - abort if we cannot decode
390
replace - put in a bogus character (typically '?')
391
exact - do not encode sys.stdout
393
NOTE: by default on Windows, sys.stdout is opened as a text
394
stream, therefore LF line-endings are converted to CRLF.
395
When a command uses encoding_type = 'exact', then
396
sys.stdout is forced to be a binary stream, and line-endings
399
:cvar hooks: An instance of CommandHooks.
89
403
takes_options = []
404
encoding_type = 'strict'
93
def __init__(self, options, arguments):
94
"""Construct and run the command.
96
Sets self.status to the return value of run()."""
97
assert isinstance(options, dict)
98
assert isinstance(arguments, dict)
99
cmdargs = options.copy()
100
cmdargs.update(arguments)
101
assert self.__doc__ != Command.__doc__, \
102
("No help message set for %r" % self)
103
self.status = self.run(**cmdargs)
409
"""Construct an instance of this command."""
410
if self.__doc__ == Command.__doc__:
411
warn("No help message set for %r" % self)
412
# List of standard options directly supported
413
self.supported_std_options = []
416
def add_cleanup(self, cleanup_func, *args, **kwargs):
417
"""Register a function to call after self.run returns or raises.
419
Functions will be called in LIFO order.
421
self._operation.add_cleanup(cleanup_func, *args, **kwargs)
423
def cleanup_now(self):
424
"""Execute and empty pending cleanup functions immediately.
426
After cleanup_now all registered cleanups are forgotten. add_cleanup
427
may be called again after cleanup_now; these cleanups will be called
428
after self.run returns or raises (or when cleanup_now is next called).
430
This is useful for releasing expensive or contentious resources (such
431
as write locks) before doing further work that does not require those
432
resources (such as writing results to self.outf). Note though, that
433
as it releases all resources, this may release locks that the command
434
wants to hold, so use should be done with care.
436
self._operation.cleanup_now()
438
@deprecated_method(deprecated_in((2, 1, 0)))
439
def _maybe_expand_globs(self, file_list):
440
"""Glob expand file_list if the platform does not do that itself.
442
Not used anymore, now that the bzr command-line parser globs on
445
:return: A possibly empty list of unicode paths.
447
Introduced in bzrlib 0.18.
452
"""Return single-line grammar for this command.
454
Only describes arguments, not options.
456
s = 'bzr ' + self.name() + ' '
457
for aname in self.takes_args:
458
aname = aname.upper()
459
if aname[-1] in ['$', '+']:
460
aname = aname[:-1] + '...'
461
elif aname[-1] == '?':
462
aname = '[' + aname[:-1] + ']'
463
elif aname[-1] == '*':
464
aname = '[' + aname[:-1] + '...]'
466
s = s[:-1] # remove last space
469
def get_help_text(self, additional_see_also=None, plain=True,
470
see_also_as_links=False, verbose=True):
471
"""Return a text string with help for this command.
473
:param additional_see_also: Additional help topics to be
475
:param plain: if False, raw help (reStructuredText) is
476
returned instead of plain text.
477
:param see_also_as_links: if True, convert items in 'See also'
478
list to internal links (used by bzr_man rstx generator)
479
:param verbose: if True, display the full help, otherwise
480
leave out the descriptive sections and just display
481
usage help (e.g. Purpose, Usage, Options) with a
482
message explaining how to obtain full help.
486
raise NotImplementedError("sorry, no detailed help yet for %r" % self.name())
488
# Extract the summary (purpose) and sections out from the text
489
purpose,sections,order = self._get_help_parts(doc)
491
# If a custom usage section was provided, use it
492
if sections.has_key('Usage'):
493
usage = sections.pop('Usage')
495
usage = self._usage()
497
# The header is the purpose and usage
499
result += ':Purpose: %s\n' % purpose
500
if usage.find('\n') >= 0:
501
result += ':Usage:\n%s\n' % usage
503
result += ':Usage: %s\n' % usage
508
# XXX: optparse implicitly rewraps the help, and not always perfectly,
509
# so we get <https://bugs.launchpad.net/bzr/+bug/249908>. -- mbp
511
options = option.get_optparser(self.options()).format_option_help()
512
# XXX: According to the spec, ReST option lists actually don't support
513
# options like --1.9 so that causes syntax errors (in Sphinx at least).
514
# As that pattern always appears in the commands that break, we trap
515
# on that and then format that block of 'format' options as a literal
517
if not plain and options.find(' --1.9 ') != -1:
518
options = options.replace(' format:\n', ' format::\n\n', 1)
519
if options.startswith('Options:'):
520
result += ':' + options
521
elif options.startswith('options:'):
522
# Python 2.4 version of optparse
523
result += ':Options:' + options[len('options:'):]
529
# Add the description, indenting it 2 spaces
530
# to match the indentation of the options
531
if sections.has_key(None):
532
text = sections.pop(None)
533
text = '\n '.join(text.splitlines())
534
result += ':%s:\n %s\n\n' % ('Description',text)
536
# Add the custom sections (e.g. Examples). Note that there's no need
537
# to indent these as they must be indented already in the source.
540
if sections.has_key(label):
541
result += ':%s:\n%s\n' % (label,sections[label])
544
result += ("See bzr help %s for more details and examples.\n\n"
547
# Add the aliases, source (plug-in) and see also links, if any
549
result += ':Aliases: '
550
result += ', '.join(self.aliases) + '\n'
551
plugin_name = self.plugin_name()
552
if plugin_name is not None:
553
result += ':From: plugin "%s"\n' % plugin_name
554
see_also = self.get_see_also(additional_see_also)
556
if not plain and see_also_as_links:
558
for item in see_also:
560
# topics doesn't have an independent section
561
# so don't create a real link
562
see_also_links.append(item)
564
# Use a Sphinx link for this entry
565
link_text = ":doc:`%s <%s-help>`" % (item, item)
566
see_also_links.append(link_text)
567
see_also = see_also_links
568
result += ':See also: '
569
result += ', '.join(see_also) + '\n'
571
# If this will be rendered as plain text, convert it
573
import bzrlib.help_topics
574
result = bzrlib.help_topics.help_as_plain_text(result)
578
def _get_help_parts(text):
579
"""Split help text into a summary and named sections.
581
:return: (summary,sections,order) where summary is the top line and
582
sections is a dictionary of the rest indexed by section name.
583
order is the order the section appear in the text.
584
A section starts with a heading line of the form ":xxx:".
585
Indented text on following lines is the section value.
586
All text found outside a named section is assigned to the
587
default section which is given the key of None.
589
def save_section(sections, order, label, section):
591
if sections.has_key(label):
592
sections[label] += '\n' + section
595
sections[label] = section
597
lines = text.rstrip().splitlines()
598
summary = lines.pop(0)
601
label,section = None,''
603
if line.startswith(':') and line.endswith(':') and len(line) > 2:
604
save_section(sections, order, label, section)
605
label,section = line[1:-1],''
606
elif (label is not None) and len(line) > 1 and not line[0].isspace():
607
save_section(sections, order, label, section)
608
label,section = None,line
611
section += '\n' + line
614
save_section(sections, order, label, section)
615
return summary, sections, order
617
def get_help_topic(self):
618
"""Return the commands help topic - its name."""
621
def get_see_also(self, additional_terms=None):
622
"""Return a list of help topics that are related to this command.
624
The list is derived from the content of the _see_also attribute. Any
625
duplicates are removed and the result is in lexical order.
626
:param additional_terms: Additional help topics to cross-reference.
627
:return: A list of help topics.
629
see_also = set(getattr(self, '_see_also', []))
631
see_also.update(additional_terms)
632
return sorted(see_also)
635
"""Return dict of valid options for this command.
637
Maps from long option name to option object."""
638
r = Option.STD_OPTIONS.copy()
640
for o in self.takes_options:
641
if isinstance(o, basestring):
642
o = option.Option.OPTIONS[o]
644
if o.name in std_names:
645
self.supported_std_options.append(o.name)
648
def _setup_outf(self):
649
"""Return a file linked to stdout, which has proper encoding."""
650
self.outf = ui.ui_factory.make_output_stream(
651
encoding_type=self.encoding_type)
653
def run_argv_aliases(self, argv, alias_argv=None):
654
"""Parse the command line and run with extra aliases in alias_argv."""
655
args, opts = parse_args(self, argv, alias_argv)
657
# Process the standard options
658
if 'help' in opts: # e.g. bzr add --help
659
sys.stdout.write(self.get_help_text())
661
if 'usage' in opts: # e.g. bzr add --usage
662
sys.stdout.write(self.get_help_text(verbose=False))
664
trace.set_verbosity_level(option._verbosity_level)
665
if 'verbose' in self.supported_std_options:
666
opts['verbose'] = trace.is_verbose()
667
elif opts.has_key('verbose'):
669
if 'quiet' in self.supported_std_options:
670
opts['quiet'] = trace.is_quiet()
671
elif opts.has_key('quiet'):
674
# mix arguments and options into one dictionary
675
cmdargs = _match_argform(self.name(), self.takes_args, args)
677
for k, v in opts.items():
678
cmdopts[k.replace('-', '_')] = v
680
all_cmd_args = cmdargs.copy()
681
all_cmd_args.update(cmdopts)
685
return self.run(**all_cmd_args)
687
def _setup_run(self):
688
"""Wrap the defined run method on self with a cleanup.
690
This is called by __init__ to make the Command be able to be run
691
by just calling run(), as it could be before cleanups were added.
693
If a different form of cleanups are in use by your Command subclass,
694
you can override this method.
697
def run(*args, **kwargs):
698
self._operation = cleanup.OperationWithCleanups(class_run)
700
return self._operation.run_simple(*args, **kwargs)
705
@deprecated_method(deprecated_in((2, 2, 0)))
706
def run_direct(self, *args, **kwargs):
707
"""Deprecated thunk from bzrlib 2.1."""
708
return self.run(*args, **kwargs)
107
"""Override this in sub-classes.
711
"""Actually run the command.
109
713
This is invoked with the options and arguments bound to
110
714
keyword parameters.
112
Return 0 or None if the command was successful, or a shell
118
class ExternalCommand(Command):
119
"""Class to wrap external commands.
121
We cheat a little here, when get_cmd_class() calls us we actually give it back
122
an object we construct that has the appropriate path, help, options etc for the
125
When run_bzr() tries to instantiate that 'class' it gets caught by the __call__
126
method, which we override to call the Command.__init__ method. That then calls
127
our run method which is pretty straight forward.
129
The only wrinkle is that we have to map bzr's dictionary of options and arguments
130
back into command line options and arguments for the script.
133
def find_command(cls, cmd):
134
bzrpath = os.environ.get('BZRPATH', '')
136
for dir in bzrpath.split(':'):
137
path = os.path.join(dir, cmd)
138
if os.path.isfile(path):
139
return ExternalCommand(path)
143
find_command = classmethod(find_command)
145
def __init__(self, path):
148
pipe = os.popen('%s --bzr-usage' % path, 'r')
149
self.takes_options = pipe.readline().split()
150
self.takes_args = pipe.readline().split()
153
pipe = os.popen('%s --bzr-help' % path, 'r')
154
self.__doc__ = pipe.read()
157
def __call__(self, options, arguments):
158
Command.__init__(self, options, arguments)
161
def run(self, **kargs):
169
if OPTIONS.has_key(name):
171
opts.append('--%s' % name)
172
if value is not None and value is not True:
173
opts.append(str(value))
175
# it's an arg, or arg list
176
if type(value) is not list:
182
self.status = os.spawnv(os.P_WAIT, self.path, [self.path] + opts + args)
186
class cmd_status(Command):
187
"""Display status summary.
189
For each file there is a single line giving its file state and name.
190
The name is that in the current revision unless it is deleted or
191
missing, in which case the old name is shown.
193
takes_args = ['file*']
194
takes_options = ['all']
195
aliases = ['st', 'stat']
197
def run(self, all=False, file_list=None):
198
b = Branch('.', lock_mode='r')
199
b.show_status(show_all=all, file_list=file_list)
202
class cmd_cat_revision(Command):
203
"""Write out metadata for a revision."""
206
takes_args = ['revision_id']
208
def run(self, revision_id):
209
Branch('.').get_revision(revision_id).write_xml(sys.stdout)
212
class cmd_revno(Command):
213
"""Show current revision number.
215
This is equal to the number of revisions on this branch."""
217
print Branch('.').revno()
220
class cmd_add(Command):
221
"""Add specified files or directories.
223
In non-recursive mode, all the named items are added, regardless
224
of whether they were previously ignored. A warning is given if
225
any of the named files are already versioned.
227
In recursive mode (the default), files are treated the same way
228
but the behaviour for directories is different. Directories that
229
are already versioned do not give a warning. All directories,
230
whether already versioned or not, are searched for files or
231
subdirectories that are neither versioned or ignored, and these
232
are added. This search proceeds recursively into versioned
235
Therefore simply saying 'bzr add .' will version all files that
236
are currently unknown.
238
TODO: Perhaps adding a file whose directly is not versioned should
239
recursively add that parent, rather than giving an error?
241
takes_args = ['file+']
242
takes_options = ['verbose']
244
def run(self, file_list, verbose=False):
245
bzrlib.add.smart_add(file_list, verbose)
248
class cmd_relpath(Command):
249
"""Show path of a file relative to root"""
250
takes_args = ['filename']
252
def run(self, filename):
253
print Branch(filename).relpath(filename)
257
class cmd_inventory(Command):
258
"""Show inventory of the current working copy or a revision."""
259
takes_options = ['revision']
261
def run(self, revision=None):
264
inv = b.read_working_inventory()
266
inv = b.get_revision_inventory(b.lookup_revision(revision))
268
for path, entry in inv.iter_entries():
269
print '%-50s %s' % (entry.file_id, path)
272
class cmd_move(Command):
273
"""Move files to a different directory.
278
The destination must be a versioned directory in the same branch.
280
takes_args = ['source$', 'dest']
281
def run(self, source_list, dest):
284
b.move([b.relpath(s) for s in source_list], b.relpath(dest))
287
class cmd_rename(Command):
288
"""Change the name of an entry.
291
bzr rename frob.c frobber.c
292
bzr rename src/frob.c lib/frob.c
294
It is an error if the destination name exists.
296
See also the 'move' command, which moves files into a different
297
directory without changing their name.
299
TODO: Some way to rename multiple files without invoking bzr for each
301
takes_args = ['from_name', 'to_name']
303
def run(self, from_name, to_name):
305
b.rename_one(b.relpath(from_name), b.relpath(to_name))
309
class cmd_renames(Command):
310
"""Show list of renamed files.
312
TODO: Option to show renames between two historical versions.
314
TODO: Only show renames under dir, rather than in the whole branch.
316
takes_args = ['dir?']
318
def run(self, dir='.'):
320
old_inv = b.basis_tree().inventory
321
new_inv = b.read_working_inventory()
323
renames = list(bzrlib.tree.find_renames(old_inv, new_inv))
325
for old_name, new_name in renames:
326
print "%s => %s" % (old_name, new_name)
329
class cmd_info(Command):
330
"""Show statistical information for this branch"""
333
info.show_info(Branch('.'))
336
class cmd_remove(Command):
337
"""Make a file unversioned.
339
This makes bzr stop tracking changes to a versioned file. It does
340
not delete the working copy.
342
takes_args = ['file+']
343
takes_options = ['verbose']
345
def run(self, file_list, verbose=False):
346
b = Branch(file_list[0])
347
b.remove([b.relpath(f) for f in file_list], verbose=verbose)
350
class cmd_file_id(Command):
351
"""Print file_id of a particular file or directory.
353
The file_id is assigned when the file is first added and remains the
354
same through all revisions where the file exists, even when it is
358
takes_args = ['filename']
359
def run(self, filename):
361
i = b.inventory.path2id(b.relpath(filename))
363
bailout("%r is not a versioned file" % filename)
368
class cmd_file_path(Command):
369
"""Print path of file_ids to a file or directory.
371
This prints one line for each directory down to the target,
372
starting at the branch root."""
374
takes_args = ['filename']
375
def run(self, filename):
378
fid = inv.path2id(b.relpath(filename))
380
bailout("%r is not a versioned file" % filename)
381
for fip in inv.get_idpath(fid):
385
class cmd_revision_history(Command):
386
"""Display list of revision ids on this branch."""
388
for patchid in Branch('.').revision_history():
392
class cmd_directories(Command):
393
"""Display list of versioned directories in this branch."""
395
for name, ie in Branch('.').read_working_inventory().directories():
402
class cmd_init(Command):
403
"""Make a directory into a versioned branch.
405
Use this to create an empty branch, or before importing an
408
Recipe for importing a tree of files:
413
bzr commit -m 'imported project'
416
Branch('.', init=True)
419
class cmd_diff(Command):
420
"""Show differences in working tree.
422
If files are listed, only the changes in those files are listed.
423
Otherwise, all changes for the tree are listed.
425
TODO: Given two revision arguments, show the difference between them.
427
TODO: Allow diff across branches.
429
TODO: Option to use external diff command; could be GNU diff, wdiff,
432
TODO: Python difflib is not exactly the same as unidiff; should
433
either fix it up or prefer to use an external diff.
435
TODO: If a directory is given, diff everything under that.
437
TODO: Selected-file diff is inefficient and doesn't show you
440
TODO: This probably handles non-Unix newlines poorly.
443
takes_args = ['file*']
444
takes_options = ['revision']
447
def run(self, revision=None, file_list=None):
448
from bzrlib.diff import show_diff
450
show_diff(Branch('.'), revision, file_list)
453
class cmd_deleted(Command):
454
"""List files deleted in the working tree.
456
TODO: Show files deleted since a previous revision, or between two revisions.
458
def run(self, show_ids=False):
461
new = b.working_tree()
463
## TODO: Much more efficient way to do this: read in new
464
## directories with readdir, rather than stating each one. Same
465
## level of effort but possibly much less IO. (Or possibly not,
466
## if the directories are very large...)
468
for path, ie in old.inventory.iter_entries():
469
if not new.has_id(ie.file_id):
471
print '%-50s %s' % (path, ie.file_id)
475
class cmd_root(Command):
476
"""Show the tree root directory.
478
The root is the nearest enclosing directory with a .bzr control
480
takes_args = ['filename?']
481
def run(self, filename=None):
482
"""Print the branch root."""
483
from branch import find_branch
484
b = find_branch(filename)
485
print getattr(b, 'base', None) or getattr(b, 'baseurl')
488
class cmd_log(Command):
489
"""Show log of this branch.
491
TODO: Option to limit range.
493
TODO: Perhaps show most-recent first with an option for last.
495
takes_args = ['filename?']
496
takes_options = ['timezone', 'verbose', 'show-ids']
497
def run(self, filename=None, timezone='original', verbose=False, show_ids=False):
498
from branch import find_branch
499
b = find_branch((filename or '.'), lock_mode='r')
501
filename = b.relpath(filename)
502
bzrlib.show_log(b, filename,
503
show_timezone=timezone,
509
class cmd_touching_revisions(Command):
510
"""Return revision-ids which affected a particular file."""
512
takes_args = ["filename"]
513
def run(self, filename):
514
b = Branch(filename, lock_mode='r')
515
inv = b.read_working_inventory()
516
file_id = inv.path2id(b.relpath(filename))
517
for revno, revision_id, what in bzrlib.log.find_touching_revisions(b, file_id):
518
print "%6d %s" % (revno, what)
521
class cmd_ls(Command):
522
"""List files in a tree.
524
TODO: Take a revision or remote path and list that tree instead.
527
def run(self, revision=None, verbose=False):
530
tree = b.working_tree()
532
tree = b.revision_tree(b.lookup_revision(revision))
534
for fp, fc, kind, fid in tree.list_files():
536
if kind == 'directory':
543
print '%-8s %s%s' % (fc, fp, kindch)
549
class cmd_unknowns(Command):
550
"""List unknown files"""
552
for f in Branch('.').unknowns():
557
class cmd_ignore(Command):
558
"""Ignore a command or pattern
560
To remove patterns from the ignore list, edit the .bzrignore file.
562
If the pattern contains a slash, it is compared to the whole path
563
from the branch root. Otherwise, it is comapred to only the last
564
component of the path.
566
Ignore patterns are case-insensitive on case-insensitive systems.
568
Note: wildcards must be quoted from the shell on Unix.
571
bzr ignore ./Makefile
574
takes_args = ['name_pattern']
576
def run(self, name_pattern):
577
from bzrlib.atomicfile import AtomicFile
581
ifn = b.abspath('.bzrignore')
583
# FIXME: probably doesn't handle non-ascii patterns
585
if os.path.exists(ifn):
586
f = b.controlfile(ifn, 'rt')
592
if igns and igns[-1] != '\n':
594
igns += name_pattern + '\n'
596
f = AtomicFile(ifn, 'wt')
600
inv = b.working_tree().inventory
601
if inv.path2id('.bzrignore'):
602
mutter('.bzrignore is already versioned')
604
mutter('need to make new .bzrignore file versioned')
605
b.add(['.bzrignore'])
609
class cmd_ignored(Command):
610
"""List ignored files and the patterns that matched them.
612
See also: bzr ignore"""
614
tree = Branch('.').working_tree()
615
for path, file_class, kind, file_id in tree.list_files():
616
if file_class != 'I':
618
## XXX: Slightly inefficient since this was already calculated
619
pat = tree.is_ignored(path)
620
print '%-50s %s' % (path, pat)
623
class cmd_lookup_revision(Command):
624
"""Lookup the revision-id from a revision-number
627
bzr lookup-revision 33
630
takes_args = ['revno']
632
def run(self, revno):
636
raise BzrCommandError("not a valid revision-number: %r" % revno)
638
print Branch('.').lookup_revision(revno)
641
class cmd_export(Command):
642
"""Export past revision to destination directory.
644
If no revision is specified this exports the last committed revision."""
645
takes_args = ['dest']
646
takes_options = ['revision']
647
def run(self, dest, revision=None):
650
rh = b.revision_history()[-1]
652
rh = b.lookup_revision(int(revision))
653
t = b.revision_tree(rh)
657
class cmd_cat(Command):
658
"""Write a file's text from a previous revision."""
660
takes_options = ['revision']
661
takes_args = ['filename']
663
def run(self, filename, revision=None):
665
raise BzrCommandError("bzr cat requires a revision number")
667
b.print_file(b.relpath(filename), int(revision))
670
class cmd_local_time_offset(Command):
671
"""Show the offset in seconds from GMT to local time."""
674
print bzrlib.osutils.local_time_offset()
678
class cmd_commit(Command):
679
"""Commit changes into a new revision.
681
TODO: Commit only selected files.
683
TODO: Run hooks on tree to-be-committed, and after commit.
685
TODO: Strict commit that fails if there are unknown or deleted files.
687
takes_options = ['message', 'file', 'verbose']
688
aliases = ['ci', 'checkin']
690
def run(self, message=None, file=None, verbose=False):
691
## Warning: shadows builtin file()
692
if not message and not file:
693
raise BzrCommandError("please specify a commit message",
694
["use either --message or --file"])
695
elif message and file:
696
raise BzrCommandError("please specify either --message or --file")
700
message = codecs.open(file, 'rt', bzrlib.user_encoding).read()
702
Branch('.').commit(message, verbose=verbose)
705
class cmd_check(Command):
706
"""Validate consistency of branch history.
708
This command checks various invariants about the branch storage to
709
detect data corruption or bzr bugs.
711
takes_args = ['dir?']
712
def run(self, dir='.'):
714
bzrlib.check.check(Branch(dir, find_root=False))
718
class cmd_whoami(Command):
719
"""Show bzr user id."""
720
takes_options = ['email']
722
def run(self, email=False):
724
print bzrlib.osutils.user_email()
726
print bzrlib.osutils.username()
729
class cmd_selftest(Command):
730
"""Run internal test suite"""
733
failures, tests = 0, 0
735
import doctest, bzrlib.store, bzrlib.tests
736
bzrlib.trace.verbose = False
738
for m in bzrlib.store, bzrlib.inventory, bzrlib.branch, bzrlib.osutils, \
739
bzrlib.tree, bzrlib.tests, bzrlib.commands, bzrlib.add:
740
mf, mt = doctest.testmod(m)
743
print '%-40s %3d tests' % (m.__name__, mt),
745
print '%3d FAILED!' % mf
749
print '%-40s %3d tests' % ('total', tests),
751
print '%3d FAILED!' % failures
757
class cmd_version(Command):
758
"""Show version of bzr"""
763
print "bzr (bazaar-ng) %s" % bzrlib.__version__
764
print bzrlib.__copyright__
765
print "http://bazaar-ng.org/"
767
print "bzr comes with ABSOLUTELY NO WARRANTY. bzr is free software, and"
768
print "you may use, modify and redistribute it under the terms of the GNU"
769
print "General Public License version 2 or later."
772
class cmd_rocks(Command):
773
"""Statement of optimism."""
776
print "it sure does!"
779
class cmd_assert_fail(Command):
780
"""Test reporting of assertion failures"""
783
assert False, "always fails"
786
class cmd_help(Command):
787
"""Show help on a command or other topic.
789
For a list of all available commands, say 'bzr help commands'."""
790
takes_args = ['topic?']
793
def run(self, topic=None):
798
######################################################################
802
# list of all available options; the rhs can be either None for an
803
# option that takes no argument, or a constructor function that checks
827
def parse_args(argv):
716
Return 0 or None if the command was successful, or a non-zero
717
shell error code if not. It's OK for this method to allow
718
an exception to raise up.
720
This method is automatically wrapped by Command.__init__ with a
721
cleanup operation, stored as self._operation. This can be used
722
via self.add_cleanup to perform automatic cleanups at the end of
725
The argument for run are assembled by introspection. So for instance,
726
if your command takes an argument files, you would declare::
728
def run(self, files=None):
731
raise NotImplementedError('no implementation of command %r'
735
"""Return help message for this class."""
736
from inspect import getdoc
737
if self.__doc__ is Command.__doc__:
742
return _unsquish_command_name(self.__class__.__name__)
744
def plugin_name(self):
745
"""Get the name of the plugin that provides this command.
747
:return: The name of the plugin or None if the command is builtin.
749
mod_parts = self.__module__.split('.')
750
if len(mod_parts) >= 3 and mod_parts[1] == 'plugins':
756
class CommandHooks(Hooks):
757
"""Hooks related to Command object creation/enumeration."""
760
"""Create the default hooks.
762
These are all empty initially, because by default nothing should get
766
self.create_hook(HookPoint('extend_command',
767
"Called after creating a command object to allow modifications "
768
"such as adding or removing options, docs etc. Called with the "
769
"new bzrlib.commands.Command object.", (1, 13), None))
770
self.create_hook(HookPoint('get_command',
771
"Called when creating a single command. Called with "
772
"(cmd_or_None, command_name). get_command should either return "
773
"the cmd_or_None parameter, or a replacement Command object that "
774
"should be used for the command. Note that the Command.hooks "
775
"hooks are core infrastructure. Many users will prefer to use "
776
"bzrlib.commands.register_command or plugin_cmds.register_lazy.",
778
self.create_hook(HookPoint('get_missing_command',
779
"Called when creating a single command if no command could be "
780
"found. Called with (command_name). get_missing_command should "
781
"either return None, or a Command object to be used for the "
782
"command.", (1, 17), None))
783
self.create_hook(HookPoint('list_commands',
784
"Called when enumerating commands. Called with a set of "
785
"cmd_name strings for all the commands found so far. This set "
786
" is safe to mutate - e.g. to remove a command. "
787
"list_commands should return the updated set of command names.",
790
Command.hooks = CommandHooks()
793
def parse_args(command, argv, alias_argv=None):
828
794
"""Parse command line.
830
796
Arguments and options are parsed at this level before being passed
831
797
down to specific command handlers. This routine knows, from a
832
798
lookup table, something about the available options, what optargs
833
799
they take, and which commands will accept them.
835
>>> parse_args('--help'.split())
837
>>> parse_args('--version'.split())
838
([], {'version': True})
839
>>> parse_args('status --all'.split())
840
(['status'], {'all': True})
841
>>> parse_args('commit --message=biter'.split())
842
(['commit'], {'message': u'biter'})
847
# TODO: Maybe handle '--' to end options?
852
# option names must not be unicode
856
mutter(" got option %r" % a)
858
optname, optarg = a[2:].split('=', 1)
861
if optname not in OPTIONS:
862
bailout('unknown long option %r' % a)
865
if shortopt not in SHORT_OPTIONS:
866
bailout('unknown short option %r' % a)
867
optname = SHORT_OPTIONS[shortopt]
870
# XXX: Do we ever want to support this, e.g. for -r?
871
bailout('repeated option %r' % a)
873
optargfn = OPTIONS[optname]
877
bailout('option %r needs an argument' % a)
880
opts[optname] = optargfn(optarg)
883
bailout('option %r takes no argument' % optname)
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])
888
811
return args, opts
893
814
def _match_argform(cmd, takes_args, args):
907
828
argdict[argname + '_list'] = None
908
829
elif ap[-1] == '+':
910
raise BzrCommandError("command %r needs one or more %s"
911
% (cmd, argname.upper()))
831
raise errors.BzrCommandError("command %r needs one or more %s"
832
% (cmd, argname.upper()))
913
834
argdict[argname + '_list'] = args[:]
915
836
elif ap[-1] == '$': # all but one
916
837
if len(args) < 2:
917
raise BzrCommandError("command %r needs one or more %s"
918
% (cmd, argname.upper()))
838
raise errors.BzrCommandError("command %r needs one or more %s"
839
% (cmd, argname.upper()))
919
840
argdict[argname + '_list'] = args[:-1]
922
843
# just a plain arg
925
raise BzrCommandError("command %r requires argument %s"
926
% (cmd, argname.upper()))
846
raise errors.BzrCommandError("command %r requires argument %s"
847
% (cmd, argname.upper()))
928
849
argdict[argname] = args.pop(0)
931
raise BzrCommandError("extra argument to command %s: %s"
852
raise errors.BzrCommandError("extra argument to command %s: %s"
857
def apply_coveraged(dirname, the_callable, *args, **kwargs):
858
# Cannot use "import trace", as that would import bzrlib.trace instead of
859
# the standard library's trace.
860
trace = __import__('trace')
862
tracer = trace.Trace(count=1, trace=0)
863
sys.settrace(tracer.globaltrace)
864
threading.settrace(tracer.globaltrace)
867
return exception_to_return_code(the_callable, *args, **kwargs)
870
results = tracer.results()
871
results.write_results(show_missing=1, summary=False,
875
def apply_profiled(the_callable, *args, **kwargs):
879
pffileno, pfname = tempfile.mkstemp()
881
prof = hotshot.Profile(pfname)
883
ret = prof.runcall(exception_to_return_code, the_callable, *args,
887
stats = hotshot.stats.load(pfname)
889
stats.sort_stats('cum') # 'time'
890
## XXX: Might like to write to stderr or the trace file instead but
891
## print_stats seems hardcoded to stdout
892
stats.print_stats(20)
899
def exception_to_return_code(the_callable, *args, **kwargs):
900
"""UI level helper for profiling and coverage.
902
This transforms exceptions into a return value of 3. As such its only
903
relevant to the UI layer, and should never be called where catching
904
exceptions may be desirable.
907
return the_callable(*args, **kwargs)
908
except (KeyboardInterrupt, Exception), e:
909
# used to handle AssertionError and KeyboardInterrupt
910
# specially here, but hopefully they're handled ok by the logger now
911
exc_info = sys.exc_info()
912
exitcode = trace.report_exception(exc_info, sys.stderr)
913
if os.environ.get('BZR_PDB'):
914
print '**** entering debugger'
917
if sys.version_info[:2] < (2, 6):
919
# pdb.post_mortem(tb)
920
# but because pdb.post_mortem gives bad results for tracebacks
921
# from inside generators, we do it manually.
922
# (http://bugs.python.org/issue4150, fixed in Python 2.6)
924
# Setup pdb on the traceback
927
p.setup(tb.tb_frame, tb)
928
# Point the debugger at the deepest frame of the stack
929
p.curindex = len(p.stack) - 1
930
p.curframe = p.stack[p.curindex][0]
931
# Start the pdb prompt.
932
p.print_stack_entry(p.stack[p.curindex])
940
def apply_lsprofiled(filename, the_callable, *args, **kwargs):
941
from bzrlib.lsprof import profile
942
ret, stats = profile(exception_to_return_code, the_callable, *args, **kwargs)
948
trace.note('Profile data written to "%s".', filename)
952
@deprecated_function(deprecated_in((2, 2, 0)))
953
def shlex_split_unicode(unsplit):
954
return cmdline.split(unsplit)
957
def get_alias(cmd, config=None):
958
"""Return an expanded alias, or None if no alias exists.
961
Command to be checked for an alias.
963
Used to specify an alternative config to use,
964
which is especially useful for testing.
965
If it is unspecified, the global config will be used.
969
config = bzrlib.config.GlobalConfig()
970
alias = config.get_alias(cmd)
972
return cmdline.split(alias)
976
def run_bzr(argv, load_plugins=load_plugins, disable_plugins=disable_plugins):
939
977
"""Execute a command.
941
This is similar to main(), but without all the trappings for
942
logging and error handling.
979
:param argv: The command-line arguments, without the program name from
980
argv[0] These should already be decoded. All library/test code calling
981
run_bzr should be passing valid strings (don't need decoding).
982
:param load_plugins: What function to call when triggering plugin loading.
983
This function should take no arguments and cause all plugins to be
985
:param disable_plugins: What function to call when disabling plugin
986
loading. This function should take no arguments and cause all plugin
987
loading to be prohibited (so that code paths in your application that
988
know about some plugins possibly being present will fail to import
989
those plugins even if they are installed.)
990
:return: Returns a command exit code or raises an exception.
992
Special master options: these must come before the command because
993
they control how the command is interpreted.
996
Do not load plugin modules at all
1002
Only use builtin commands. (Plugins are still allowed to change
1006
Run under the Python hotshot profiler.
1009
Run under the Python lsprof profiler.
1012
Generate line coverage report in the specified directory.
1015
Specify the number of processes that can be run concurrently (selftest).
944
argv = [a.decode(bzrlib.user_encoding) for a in argv]
947
args, opts = parse_args(argv[1:])
955
elif 'version' in opts:
958
cmd = str(args.pop(0))
960
log_error('usage: bzr COMMAND')
961
log_error(' try "bzr help"')
964
canonical_cmd, cmd_class = get_cmd_class(cmd)
967
if 'profile' in opts:
973
# check options are reasonable
974
allowed = cmd_class.takes_options
976
if oname not in allowed:
977
raise BzrCommandError("option '--%s' is not allowed for command %r"
980
# mix arguments and options into one dictionary
981
cmdargs = _match_argform(cmd, cmd_class.takes_args, args)
983
for k, v in opts.items():
984
cmdopts[k.replace('-', '_')] = v
987
import hotshot, tempfile
988
pffileno, pfname = tempfile.mkstemp()
990
prof = hotshot.Profile(pfname)
991
ret = prof.runcall(cmd_class, cmdopts, cmdargs) or 0
995
stats = hotshot.stats.load(pfname)
997
stats.sort_stats('time')
998
## XXX: Might like to write to stderr or the trace file instead but
999
## print_stats seems hardcoded to stdout
1000
stats.print_stats(20)
1008
cmdobj = cmd_class(cmdopts, cmdargs).status
1011
def _report_exception(summary, quiet=False):
1013
log_error('bzr: ' + summary)
1014
bzrlib.trace.log_exception()
1017
tb = sys.exc_info()[2]
1018
exinfo = traceback.extract_tb(tb)
1020
sys.stderr.write(' at %s:%d in %s()\n' % exinfo[-1][:3])
1021
sys.stderr.write(' see ~/.bzr.log for debug information\n')
1028
bzrlib.open_tracefile(argv)
1033
return run_bzr(argv)
1035
# do this here inside the exception wrappers to catch EPIPE
1038
quiet = isinstance(e, (BzrCommandError))
1039
_report_exception('error: ' + e.args[0], quiet=quiet)
1042
# some explanation or hints
1045
except AssertionError, e:
1046
msg = 'assertion failed'
1048
msg += ': ' + str(e)
1049
_report_exception(msg)
1051
except KeyboardInterrupt, e:
1052
_report_exception('interrupted', quiet=True)
1054
except Exception, e:
1056
if (isinstance(e, IOError)
1057
and hasattr(e, 'errno')
1058
and e.errno == errno.EPIPE):
1062
msg = str(e).rstrip('\n')
1063
_report_exception(msg, quiet)
1017
trace.mutter("bazaar version: " + bzrlib.__version__)
1019
trace.mutter("bzr arguments: %r", argv)
1021
opt_lsprof = opt_profile = opt_no_plugins = opt_builtin = \
1022
opt_no_aliases = False
1023
opt_lsprof_file = opt_coverage_dir = None
1025
# --no-plugins is handled specially at a very early stage. We need
1026
# to load plugins before doing other command parsing so that they
1027
# can override commands, but this needs to happen first.
1031
while i < len(argv):
1033
if a == '--profile':
1035
elif a == '--lsprof':
1037
elif a == '--lsprof-file':
1039
opt_lsprof_file = argv[i + 1]
1041
elif a == '--no-plugins':
1042
opt_no_plugins = True
1043
elif a == '--no-aliases':
1044
opt_no_aliases = True
1045
elif a == '--builtin':
1047
elif a == '--concurrency':
1048
os.environ['BZR_CONCURRENCY'] = argv[i + 1]
1050
elif a == '--coverage':
1051
opt_coverage_dir = argv[i + 1]
1053
elif a.startswith('-D'):
1054
debug.debug_flags.add(a[2:])
1059
debug.set_debug_flags_from_config()
1061
if not opt_no_plugins:
1068
get_cmd_object('help').run_argv_aliases([])
1071
if argv[0] == '--version':
1072
get_cmd_object('version').run_argv_aliases([])
1077
if not opt_no_aliases:
1078
alias_argv = get_alias(argv[0])
1080
user_encoding = osutils.get_user_encoding()
1081
alias_argv = [a.decode(user_encoding) for a in alias_argv]
1082
argv[0] = alias_argv.pop(0)
1085
# We want only 'ascii' command names, but the user may have typed
1086
# in a Unicode name. In that case, they should just get a
1087
# 'command not found' error later.
1089
cmd_obj = get_cmd_object(cmd, plugins_override=not opt_builtin)
1090
run = cmd_obj.run_argv_aliases
1091
run_argv = [argv, alias_argv]
1094
# We can be called recursively (tests for example), but we don't want
1095
# the verbosity level to propagate.
1096
saved_verbosity_level = option._verbosity_level
1097
option._verbosity_level = 0
1099
if opt_coverage_dir:
1101
'--coverage ignored, because --lsprof is in use.')
1102
ret = apply_lsprofiled(opt_lsprof_file, run, *run_argv)
1104
if opt_coverage_dir:
1106
'--coverage ignored, because --profile is in use.')
1107
ret = apply_profiled(run, *run_argv)
1108
elif opt_coverage_dir:
1109
ret = apply_coveraged(opt_coverage_dir, run, *run_argv)
1111
ret = run(*run_argv)
1066
bzrlib.trace.close_trace()
1069
if __name__ == '__main__':
1070
sys.exit(main(sys.argv))
1114
# reset, in case we may do other commands later within the same
1115
# process. Commands that want to execute sub-commands must propagate
1116
# --verbose in their own way.
1117
if 'memory' in debug.debug_flags:
1118
trace.debug_memory('Process status after command:', short=False)
1119
option._verbosity_level = saved_verbosity_level
1122
def display_command(func):
1123
"""Decorator that suppresses pipe/interrupt errors."""
1124
def ignore_pipe(*args, **kwargs):
1126
result = func(*args, **kwargs)
1130
if getattr(e, 'errno', None) is None:
1132
if e.errno != errno.EPIPE:
1133
# Win32 raises IOError with errno=0 on a broken pipe
1134
if sys.platform != 'win32' or (e.errno not in (0, errno.EINVAL)):
1137
except KeyboardInterrupt:
1142
def install_bzr_command_hooks():
1143
"""Install the hooks to supply bzr's own commands."""
1144
if _list_bzr_commands in Command.hooks["list_commands"]:
1146
Command.hooks.install_named_hook("list_commands", _list_bzr_commands,
1148
Command.hooks.install_named_hook("get_command", _get_bzr_command,
1150
Command.hooks.install_named_hook("get_command", _get_plugin_command,
1151
"bzr plugin commands")
1152
Command.hooks.install_named_hook("get_command", _get_external_command,
1153
"bzr external command lookup")
1154
Command.hooks.install_named_hook("get_missing_command", _try_plugin_provider,
1155
"bzr plugin-provider-db check")
1159
def _specified_or_unicode_argv(argv):
1160
# For internal or testing use, argv can be passed. Otherwise, get it from
1161
# the process arguments in a unicode-safe way.
1163
return osutils.get_unicode_argv()
1167
# ensure all arguments are unicode strings
1169
if isinstance(a, unicode):
1172
new_argv.append(a.decode('ascii'))
1173
except UnicodeDecodeError:
1174
raise errors.BzrError("argv should be list of unicode strings.")
1178
def main(argv=None):
1179
"""Main entry point of command-line interface.
1181
Typically `bzrlib.initialize` should be called first.
1183
:param argv: list of unicode command-line arguments similar to sys.argv.
1184
argv[0] is script name usually, it will be ignored.
1185
Don't pass here sys.argv because this list contains plain strings
1186
and not unicode; pass None instead.
1188
:return: exit code of bzr command.
1190
argv = _specified_or_unicode_argv(argv)
1191
_register_builtin_commands()
1192
ret = run_bzr_catch_errors(argv)
1193
bzrlib.ui.ui_factory.log_transport_activity(
1194
display=('bytes' in debug.debug_flags))
1195
trace.mutter("return code %d", ret)
1199
def run_bzr_catch_errors(argv):
1200
"""Run a bzr command with parameters as described by argv.
1202
This function assumed that that UI layer is setup, that symbol deprecations
1203
are already applied, and that unicode decoding has already been performed on argv.
1205
# done here so that they're covered for every test run
1206
install_bzr_command_hooks()
1207
return exception_to_return_code(run_bzr, argv)
1210
def run_bzr_catch_user_errors(argv):
1211
"""Run bzr and report user errors, but let internal errors propagate.
1213
This is used for the test suite, and might be useful for other programs
1214
that want to wrap the commandline interface.
1216
# done here so that they're covered for every test run
1217
install_bzr_command_hooks()
1219
return run_bzr(argv)
1220
except Exception, e:
1221
if (isinstance(e, (OSError, IOError))
1222
or not getattr(e, 'internal_error', True)):
1223
trace.report_exception(sys.exc_info(), sys.stderr)
1229
class HelpCommandIndex(object):
1230
"""A index for bzr help that returns commands."""
1233
self.prefix = 'commands/'
1235
def get_topics(self, topic):
1236
"""Search for topic amongst commands.
1238
:param topic: A topic to search for.
1239
:return: A list which is either empty or contains a single
1242
if topic and topic.startswith(self.prefix):
1243
topic = topic[len(self.prefix):]
1245
cmd = _get_cmd_object(topic, check_missing=False)
1252
class Provider(object):
1253
'''Generic class to be overriden by plugins'''
1255
def plugin_for_command(self, cmd_name):
1256
'''Takes a command and returns the information for that plugin
1258
:return: A dictionary with all the available information
1259
for the requested plugin
1261
raise NotImplementedError
1264
class ProvidersRegistry(registry.Registry):
1265
'''This registry exists to allow other providers to exist'''
1268
for key, provider in self.iteritems():
1271
command_providers_registry = ProvidersRegistry()
added
removed
bzrlib/commands.py
