164
62
def _unsquish_command_name(cmd):
63
assert cmd.startswith("cmd_")
165
64
return cmd[4:].replace('_','-')
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
67
def _parse_revision_str(revstr):
68
"""This handles a revision string -> revno.
70
This always returns a list. The list will have one element for
72
It supports integers directly, but everything else it
73
defers for passing to Branch.get_revision_info()
75
>>> _parse_revision_str('234')
77
>>> _parse_revision_str('234..567')
79
>>> _parse_revision_str('..')
81
>>> _parse_revision_str('..234')
83
>>> _parse_revision_str('234..')
85
>>> _parse_revision_str('234..456..789') # Maybe this should be an error
87
>>> _parse_revision_str('234....789') # Error?
89
>>> _parse_revision_str('revid:test@other.com-234234')
90
['revid:test@other.com-234234']
91
>>> _parse_revision_str('revid:test@other.com-234234..revid:test@other.com-234235')
92
['revid:test@other.com-234234', 'revid:test@other.com-234235']
93
>>> _parse_revision_str('revid:test@other.com-234234..23')
94
['revid:test@other.com-234234', 23]
95
>>> _parse_revision_str('date:2005-04-12')
97
>>> _parse_revision_str('date:2005-04-12 12:24:33')
98
['date:2005-04-12 12:24:33']
99
>>> _parse_revision_str('date:2005-04-12T12:24:33')
100
['date:2005-04-12T12:24:33']
101
>>> _parse_revision_str('date:2005-04-12,12:24:33')
102
['date:2005-04-12,12:24:33']
103
>>> _parse_revision_str('-5..23')
105
>>> _parse_revision_str('-5')
107
>>> _parse_revision_str('123a')
109
>>> _parse_revision_str('abc')
174
# return dict(name: cmd_class)
175
return dict(builtin_command_registry.items())
178
def _register_builtin_commands():
179
if builtin_command_registry.keys():
113
old_format_re = re.compile('\d*:\d*')
114
m = old_format_re.match(revstr)
116
warning('Colon separator for revision numbers is deprecated.'
119
for rev in revstr.split(':'):
121
revs.append(int(rev))
126
for x in revstr.split('..'):
137
def get_merge_type(typestring):
138
"""Attempt to find the merge class/factory associated with a string."""
139
from merge import merge_types
141
return merge_types[typestring][0]
143
templ = '%s%%7s: %%s' % (' '*12)
144
lines = [templ % (f[0], f[1][1]) for f in merge_types.iteritems()]
145
type_list = '\n'.join(lines)
146
msg = "No known merge type %s. Supported types are:\n%s" %\
147
(typestring, type_list)
148
raise BzrCommandError(msg)
151
def get_merge_type(typestring):
152
"""Attempt to find the merge class/factory associated with a string."""
153
from merge import merge_types
155
return merge_types[typestring][0]
157
templ = '%s%%7s: %%s' % (' '*12)
158
lines = [templ % (f[0], f[1][1]) for f in merge_types.iteritems()]
159
type_list = '\n'.join(lines)
160
msg = "No known merge type %s. Supported types are:\n%s" %\
161
(typestring, type_list)
162
raise BzrCommandError(msg)
166
def _get_cmd_dict(plugins_override=True):
182
167
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():
170
builtins = bzrlib.builtins.__dict__
171
for name in builtins:
191
172
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)
173
d[_unsquish_command_name(name)] = builtins[name]
174
# If we didn't load plugins, the plugin_cmds dict will be empty
176
d.update(plugin_cmds)
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."""
178
d2 = plugin_cmds.copy()
184
def get_all_cmds(plugins_override=True):
185
"""Return canonical name and class for all registered commands."""
186
for k, v in _get_cmd_dict(plugins_override=plugins_override).iteritems():
190
def get_cmd_class(cmd, plugins_override=True):
191
"""Return the canonical name and command class for a command.
193
cmd = str(cmd) # not unicode
195
# first look up this command under the specified name
196
cmds = _get_cmd_dict(plugins_override=plugins_override)
197
mutter("all commands: %r", cmds.keys())
332
return plugin_cmds.get(cmd_name)()
199
return cmd, cmds[cmd]
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)()
203
# look for any command which claims this as an alias
204
for cmdname, cmdclass in cmds.iteritems():
205
if cmd in cmdclass.aliases:
206
return cmdname, cmdclass
208
cmdclass = ExternalCommand.find_command(cmd)
212
raise BzrCommandError("unknown command %r" % cmd)
342
215
class Command(object):
343
216
"""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.)
356
218
The docstring for an actual command should give a single-line
357
219
summary, then a complete description of the command. A grammar
358
220
description will be inserted.
361
Other accepted names for this command.
364
223
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
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().
227
List of options that may be given for this command.
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.
230
If true, this command isn't advertised.
403
235
takes_options = []
404
encoding_type = 'strict'
239
def __init__(self, options, arguments):
240
"""Construct and run the command.
409
"""Construct an instance of this command."""
242
Sets self.status to the return value of run()."""
243
assert isinstance(options, dict)
244
assert isinstance(arguments, dict)
245
cmdargs = options.copy()
246
cmdargs.update(arguments)
410
247
if self.__doc__ == Command.__doc__:
248
from warnings import warn
411
249
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)
711
"""Actually run the command.
250
self.status = self.run(**cmdargs)
251
if self.status is None:
255
def run(self, *args, **kwargs):
256
"""Override this in sub-classes.
713
258
This is invoked with the options and arguments bound to
714
259
keyword parameters.
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':
261
Return 0 or None if the command was successful, or a shell
264
raise NotImplementedError()
267
class ExternalCommand(Command):
268
"""Class to wrap external commands.
270
We cheat a little here, when get_cmd_class() calls us we actually
271
give it back an object we construct that has the appropriate path,
272
help, options etc for the specified command.
274
When run_bzr() tries to instantiate that 'class' it gets caught by
275
the __call__ method, which we override to call the Command.__init__
276
method. That then calls our run method which is pretty straight
279
The only wrinkle is that we have to map bzr's dictionary of options
280
and arguments back into command line options and arguments for the
284
def find_command(cls, cmd):
286
bzrpath = os.environ.get('BZRPATH', '')
288
for dir in bzrpath.split(os.pathsep):
289
path = os.path.join(dir, cmd)
290
if os.path.isfile(path):
291
return ExternalCommand(path)
295
find_command = classmethod(find_command)
297
def __init__(self, path):
300
pipe = os.popen('%s --bzr-usage' % path, 'r')
301
self.takes_options = pipe.readline().split()
303
for opt in self.takes_options:
304
if not opt in OPTIONS:
305
raise BzrError("Unknown option '%s' returned by external command %s"
308
# TODO: Is there any way to check takes_args is valid here?
309
self.takes_args = pipe.readline().split()
311
if pipe.close() is not None:
312
raise BzrError("Failed funning '%s --bzr-usage'" % path)
314
pipe = os.popen('%s --bzr-help' % path, 'r')
315
self.__doc__ = pipe.read()
316
if pipe.close() is not None:
317
raise BzrError("Failed funning '%s --bzr-help'" % path)
319
def __call__(self, options, arguments):
320
Command.__init__(self, options, arguments)
323
def run(self, **kargs):
330
optname = name.replace('_','-')
332
if OPTIONS.has_key(optname):
334
opts.append('--%s' % optname)
335
if value is not None and value is not True:
336
opts.append(str(value))
338
# it's an arg, or arg list
339
if type(value) is not list:
345
self.status = os.spawnv(os.P_WAIT, self.path, [self.path] + opts + args)
350
def parse_spec(spec):
356
>>> parse_spec("../@")
358
>>> parse_spec("../f/@35")
360
>>> parse_spec('./@revid:john@arbash-meinel.com-20050711044610-3ca0327c6a222f67')
361
['.', 'revid:john@arbash-meinel.com-20050711044610-3ca0327c6a222f67']
366
parsed = spec.split('/@')
367
assert len(parsed) == 2
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):
372
parsed[1] = int(parsed[1])
374
pass # We can allow stuff like ./@revid:blahblahblah
378
parsed = [spec, None]
384
# list of all available options; the rhs can be either None for an
385
# option that takes no argument, or a constructor function that checks
398
'revision': _parse_revision_str,
410
'merge-type': get_merge_type,
424
def parse_args(argv):
794
425
"""Parse command line.
796
427
Arguments and options are parsed at this level before being passed
797
428
down to specific command handlers. This routine knows, from a
798
429
lookup table, something about the available options, what optargs
799
430
they take, and which commands will accept them.
432
>>> parse_args('--help'.split())
434
>>> parse_args('help -- --invalidcmd'.split())
435
(['help', '--invalidcmd'], {})
436
>>> parse_args('--version'.split())
437
([], {'version': True})
438
>>> parse_args('status --all'.split())
439
(['status'], {'all': True})
440
>>> parse_args('commit --message=biter'.split())
441
(['commit'], {'message': u'biter'})
442
>>> parse_args('log -r 500'.split())
443
(['log'], {'revision': [500]})
444
>>> parse_args('log -r500..600'.split())
445
(['log'], {'revision': [500, 600]})
446
>>> parse_args('log -vr500..600'.split())
447
(['log'], {'verbose': True, 'revision': [500, 600]})
448
>>> parse_args('log -rv500..600'.split()) #the r takes an argument
449
(['log'], {'revision': ['v500', 600]})
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])
457
if not argsover and a[0] == '-':
458
# option names must not be unicode
463
# We've received a standalone -- No more flags
466
mutter(" got option %r" % a)
468
optname, optarg = a[2:].split('=', 1)
471
if optname not in OPTIONS:
472
raise BzrError('unknown long option %r' % a)
475
if shortopt in SHORT_OPTIONS:
476
# Multi-character options must have a space to delimit
478
optname = SHORT_OPTIONS[shortopt]
480
# Single character short options, can be chained,
481
# and have their value appended to their name
483
if shortopt not in SHORT_OPTIONS:
484
# We didn't find the multi-character name, and we
485
# didn't find the single char name
486
raise BzrError('unknown short option %r' % a)
487
optname = SHORT_OPTIONS[shortopt]
490
# There are extra things on this option
491
# see if it is the value, or if it is another
493
optargfn = OPTIONS[optname]
495
# This option does not take an argument, so the
496
# next entry is another short option, pack it back
498
argv.insert(0, '-' + a[2:])
500
# This option takes an argument, so pack it
505
# XXX: Do we ever want to support this, e.g. for -r?
506
raise BzrError('repeated option %r' % a)
508
optargfn = OPTIONS[optname]
512
raise BzrError('option %r needs an argument' % a)
515
opts[optname] = optargfn(optarg)
518
raise BzrError('option %r takes no argument' % optname)
811
523
return args, opts
814
528
def _match_argform(cmd, takes_args, args):
996
588
Do not load plugin modules at all
1002
591
Only use builtin commands. (Plugins are still allowed to change
1003
592
other behaviour.)
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).
595
Run under the Python profiler.
1017
trace.mutter("bazaar version: " + bzrlib.__version__)
1019
trace.mutter("bzr arguments: %r", argv)
598
argv = [a.decode(bzrlib.user_encoding) for a in argv]
1021
opt_lsprof = opt_profile = opt_no_plugins = opt_builtin = \
1022
opt_no_aliases = False
1023
opt_lsprof_file = opt_coverage_dir = None
600
opt_profile = opt_no_plugins = opt_builtin = False
1025
602
# --no-plugins is handled specially at a very early stage. We need
1026
603
# to load plugins before doing other command parsing so that they
1027
604
# can override commands, but this needs to happen first.
1031
while i < len(argv):
1033
607
if a == '--profile':
1034
608
opt_profile = True
1035
elif a == '--lsprof':
1037
elif a == '--lsprof-file':
1039
opt_lsprof_file = argv[i + 1]
1041
609
elif a == '--no-plugins':
1042
610
opt_no_plugins = True
1043
elif a == '--no-aliases':
1044
opt_no_aliases = True
1045
611
elif a == '--builtin':
1046
612
opt_builtin = True
1047
elif a == '--concurrency':
1048
os.environ['BZR_CONCURRENCY'] = argv[i + 1]
1050
elif a == '--coverage':
1051
opt_coverage_dir = argv[i + 1]
1053
elif a.startswith('-D'):
1054
debug.debug_flags.add(a[2:])
1059
debug.set_debug_flags_from_config()
1061
617
if not opt_no_plugins:
618
from bzrlib.plugin import load_plugins
621
args, opts = parse_args(argv)
624
from bzrlib.help import help
631
if 'version' in opts:
632
from bzrlib.builtins import show_version
637
from bzrlib.help import help
641
cmd = str(args.pop(0))
643
canonical_cmd, cmd_class = \
644
get_cmd_class(cmd, plugins_override=not opt_builtin)
646
# check options are reasonable
647
allowed = cmd_class.takes_options
649
if oname not in allowed:
650
raise BzrCommandError("option '--%s' is not allowed for command %r"
653
# mix arguments and options into one dictionary
654
cmdargs = _match_argform(cmd, cmd_class.takes_args, args)
656
for k, v in opts.items():
657
cmdopts[k.replace('-', '_')] = v
660
import hotshot, tempfile
661
pffileno, pfname = tempfile.mkstemp()
663
prof = hotshot.Profile(pfname)
664
ret = prof.runcall(cmd_class, cmdopts, cmdargs) or 0
668
stats = hotshot.stats.load(pfname)
670
stats.sort_stats('time')
671
## XXX: Might like to write to stderr or the trace file instead but
672
## print_stats seems hardcoded to stdout
673
stats.print_stats(20)
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]
681
return cmd_class(cmdopts, cmdargs).status
686
bzrlib.trace.log_startup(argv)
687
bzrlib.ui.ui_factory = bzrlib.ui.TextUIFactory()
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)
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)
691
return run_bzr(argv[1:])
693
# do this here inside the exception wrappers to catch EPIPE
1127
694
sys.stdout.flush()
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)
695
except BzrCommandError, e:
696
# command line syntax error, etc
700
bzrlib.trace.log_exception()
702
except AssertionError, e:
703
bzrlib.trace.log_exception('assertion failed: ' + str(e))
705
except KeyboardInterrupt, e:
706
bzrlib.trace.note('interrupted')
1220
708
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()
710
if (isinstance(e, IOError)
711
and hasattr(e, 'errno')
712
and e.errno == errno.EPIPE):
713
bzrlib.trace.note('broken pipe')
716
bzrlib.trace.log_exception()
720
if __name__ == '__main__':
721
sys.exit(main(sys.argv))
added
removed
bzrlib/commands.py
