165
130
return cmd[4:].replace('_','-')
168
@deprecated_function(deprecated_in((2, 2, 0)))
169
133
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
134
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():
136
builtins = bzrlib.builtins.__dict__
137
for name in builtins:
191
138
if name.startswith("cmd_"):
192
139
real_name = _unsquish_command_name(name)
140
r[real_name] = builtins[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
144
def builtin_command_names():
220
"""Return list of builtin command names.
145
"""Return list of builtin command names."""
146
return _builtin_commands().keys()
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
149
def plugin_command_names():
229
"""Returns command names from commands registered by plugins."""
230
150
return plugin_cmds.keys()
153
def _get_cmd_dict(plugins_override=True):
154
"""Return name->class mapping for all commands."""
155
d = _builtin_commands()
157
d.update(plugin_cmds.iteritems())
161
def get_all_cmds(plugins_override=True):
162
"""Return canonical name and class for all registered commands."""
163
for k, v in _get_cmd_dict(plugins_override=plugins_override).iteritems():
233
167
def get_cmd_object(cmd_name, plugins_override=True):
234
"""Return the command object for a command.
168
"""Return the canonical name and command class for a command.
237
171
If true, plugin commands can override builtins.
240
return _get_cmd_object(cmd_name, plugins_override)
174
cmd = _get_cmd_object(cmd_name, plugins_override)
175
# Allow plugins to extend commands
176
for hook in Command.hooks['extend_command']:
242
180
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.
183
def _get_cmd_object(cmd_name, plugins_override=True):
184
"""Worker for get_cmd_object which raises KeyError rather than BzrCommandError."""
185
from bzrlib.externalcommand import ExternalCommand
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
187
# We want only 'ascii' command names, but the user may have typed
256
188
# in a Unicode name. In that case, they should just get a
257
189
# 'command not found' error later.
258
190
# 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:
192
# first look up this command under the specified name
301
return provider.plugin_for_command(cmd_name), provider
302
except errors.NoPluginAvailable:
195
return plugin_cmds.get(cmd_name)()
304
raise errors.NoPluginAvailable(cmd_name)
307
def _get_bzr_command(cmd_or_None, cmd_name):
308
"""Get a command from bzr's core."""
198
cmds = _get_cmd_dict(plugins_override=False)
310
cmd_class = builtin_command_registry.get(cmd_name)
200
return cmds[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
204
for key in plugin_cmds.keys():
205
info = plugin_cmds.get_info(key)
206
if cmd_name in info.aliases:
207
return plugin_cmds.get(key)()
208
# look for any command which claims this as an alias
209
for real_cmd_name, cmd_class in cmds.iteritems():
210
if cmd_name in cmd_class.aliases:
324
213
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)()
217
# look for plugins that provide this command but aren't installed
218
for provider in command_providers_registry:
220
plugin_metadata = provider.plugin_for_command(cmd_name)
221
except errors.NoPluginAvailable:
224
raise errors.CommandAvailableInPlugin(cmd_name,
225
plugin_metadata, provider)
342
229
class Command(object):
410
291
encoding_type = 'strict'
414
295
def __init__(self):
415
296
"""Construct an instance of this command."""
297
if self.__doc__ == Command.__doc__:
298
warn("No help message set for %r" % self)
416
299
# List of standard options directly supported
417
300
self.supported_std_options = []
420
def add_cleanup(self, cleanup_func, *args, **kwargs):
421
"""Register a function to call after self.run returns or raises.
423
Functions will be called in LIFO order.
425
self._operation.add_cleanup(cleanup_func, *args, **kwargs)
427
def cleanup_now(self):
428
"""Execute and empty pending cleanup functions immediately.
430
After cleanup_now all registered cleanups are forgotten. add_cleanup
431
may be called again after cleanup_now; these cleanups will be called
432
after self.run returns or raises (or when cleanup_now is next called).
434
This is useful for releasing expensive or contentious resources (such
435
as write locks) before doing further work that does not require those
436
resources (such as writing results to self.outf). Note though, that
437
as it releases all resources, this may release locks that the command
438
wants to hold, so use should be done with care.
440
self._operation.cleanup_now()
442
@deprecated_method(deprecated_in((2, 1, 0)))
443
302
def _maybe_expand_globs(self, file_list):
444
303
"""Glob expand file_list if the platform does not do that itself.
446
Not used anymore, now that the bzr command-line parser globs on
449
305
:return: A possibly empty list of unicode paths.
451
307
Introduced in bzrlib 0.18.
311
if sys.platform == 'win32':
312
file_list = win32utils.glob_expand(file_list)
313
return list(file_list)
455
315
def _usage(self):
456
316
"""Return single-line grammar for this command.
529
374
result += options
533
# Add the description, indenting it 2 spaces
534
# to match the indentation of the options
535
if sections.has_key(None):
536
text = sections.pop(None)
537
text = '\n '.join(text.splitlines())
538
result += ':%s:\n %s\n\n' % ('Description',text)
377
# Add the description, indenting it 2 spaces
378
# to match the indentation of the options
379
if sections.has_key(None):
380
text = sections.pop(None)
381
text = '\n '.join(text.splitlines())
382
result += ':%s:\n %s\n\n' % ('Description',text)
540
# Add the custom sections (e.g. Examples). Note that there's no need
541
# to indent these as they must be indented already in the source.
544
if sections.has_key(label):
545
result += ':%s:\n%s\n' % (label,sections[label])
548
result += ("See bzr help %s for more details and examples.\n\n"
384
# Add the custom sections (e.g. Examples). Note that there's no need
385
# to indent these as they must be indented already in the source.
388
if sections.has_key(label):
389
result += ':%s:\n%s\n\n' % (label,sections[label])
551
391
# Add the aliases, source (plug-in) and see also links, if any
652
491
def _setup_outf(self):
653
492
"""Return a file linked to stdout, which has proper encoding."""
654
self.outf = ui.ui_factory.make_output_stream(
655
encoding_type=self.encoding_type)
493
# Originally I was using self.stdout, but that looks
494
# *way* too much like sys.stdout
495
if self.encoding_type == 'exact':
496
# force sys.stdout to be binary stream on win32
497
if sys.platform == 'win32':
498
fileno = getattr(sys.stdout, 'fileno', None)
501
msvcrt.setmode(fileno(), os.O_BINARY)
502
self.outf = sys.stdout
505
output_encoding = osutils.get_terminal_encoding()
507
self.outf = codecs.getwriter(output_encoding)(sys.stdout,
508
errors=self.encoding_type)
509
# For whatever reason codecs.getwriter() does not advertise its encoding
510
# it just returns the encoding of the wrapped file, which is completely
511
# bogus. So set the attribute, so we can find the correct encoding later.
512
self.outf.encoding = output_encoding
657
514
def run_argv_aliases(self, argv, alias_argv=None):
658
515
"""Parse the command line and run with extra aliases in alias_argv."""
517
warn("Passing None for [] is deprecated from bzrlib 0.10",
518
DeprecationWarning, stacklevel=2)
659
520
args, opts = parse_args(self, argv, alias_argv)
661
522
# Process the standard options
662
523
if 'help' in opts: # e.g. bzr add --help
663
524
sys.stdout.write(self.get_help_text())
665
if 'usage' in opts: # e.g. bzr add --usage
666
sys.stdout.write(self.get_help_text(verbose=False))
668
526
trace.set_verbosity_level(option._verbosity_level)
669
527
if 'verbose' in self.supported_std_options:
670
528
opts['verbose'] = trace.is_verbose()
769
593
Hooks.__init__(self)
770
self.create_hook(HookPoint('extend_command',
771
"Called after creating a command object to allow modifications "
772
"such as adding or removing options, docs etc. Called with the "
773
"new bzrlib.commands.Command object.", (1, 13), None))
774
self.create_hook(HookPoint('get_command',
775
"Called when creating a single command. Called with "
776
"(cmd_or_None, command_name). get_command should either return "
777
"the cmd_or_None parameter, or a replacement Command object that "
778
"should be used for the command. Note that the Command.hooks "
779
"hooks are core infrastructure. Many users will prefer to use "
780
"bzrlib.commands.register_command or plugin_cmds.register_lazy.",
782
self.create_hook(HookPoint('get_missing_command',
783
"Called when creating a single command if no command could be "
784
"found. Called with (command_name). get_missing_command should "
785
"either return None, or a Command object to be used for the "
786
"command.", (1, 17), None))
787
self.create_hook(HookPoint('list_commands',
788
"Called when enumerating commands. Called with a set of "
789
"cmd_name strings for all the commands found so far. This set "
790
" is safe to mutate - e.g. to remove a command. "
791
"list_commands should return the updated set of command names.",
594
# Introduced in 1.13:
595
# invoked after creating a command object to allow modifications such
596
# as adding or removing options, docs etc. Invoked with the command
598
self['extend_command'] = []
794
600
Command.hooks = CommandHooks()
797
603
def parse_args(command, argv, alias_argv=None):
798
604
"""Parse command line.
800
606
Arguments and options are parsed at this level before being passed
801
607
down to specific command handlers. This routine knows, from a
802
608
lookup table, something about the available options, what optargs
900
703
os.remove(pfname)
903
def exception_to_return_code(the_callable, *args, **kwargs):
904
"""UI level helper for profiling and coverage.
906
This transforms exceptions into a return value of 3. As such its only
907
relevant to the UI layer, and should never be called where catching
908
exceptions may be desirable.
911
return the_callable(*args, **kwargs)
912
except (KeyboardInterrupt, Exception), e:
913
# used to handle AssertionError and KeyboardInterrupt
914
# specially here, but hopefully they're handled ok by the logger now
915
exc_info = sys.exc_info()
916
exitcode = trace.report_exception(exc_info, sys.stderr)
917
if os.environ.get('BZR_PDB'):
918
print '**** entering debugger'
921
if sys.version_info[:2] < (2, 6):
923
# pdb.post_mortem(tb)
924
# but because pdb.post_mortem gives bad results for tracebacks
925
# from inside generators, we do it manually.
926
# (http://bugs.python.org/issue4150, fixed in Python 2.6)
928
# Setup pdb on the traceback
931
p.setup(tb.tb_frame, tb)
932
# Point the debugger at the deepest frame of the stack
933
p.curindex = len(p.stack) - 1
934
p.curframe = p.stack[p.curindex][0]
935
# Start the pdb prompt.
936
p.print_stack_entry(p.stack[p.curindex])
944
706
def apply_lsprofiled(filename, the_callable, *args, **kwargs):
945
707
from bzrlib.lsprof import profile
946
ret, stats = profile(exception_to_return_code, the_callable, *args, **kwargs)
708
ret, stats = profile(the_callable, *args, **kwargs)
948
710
if filename is None:
973
735
config = bzrlib.config.GlobalConfig()
974
736
alias = config.get_alias(cmd)
976
return cmdline.split(alias)
738
return shlex_split_unicode(alias)
980
def run_bzr(argv, load_plugins=load_plugins, disable_plugins=disable_plugins):
981
743
"""Execute a command.
983
:param argv: The command-line arguments, without the program name from
984
argv[0] These should already be decoded. All library/test code calling
985
run_bzr should be passing valid strings (don't need decoding).
986
:param load_plugins: What function to call when triggering plugin loading.
987
This function should take no arguments and cause all plugins to be
989
:param disable_plugins: What function to call when disabling plugin
990
loading. This function should take no arguments and cause all plugin
991
loading to be prohibited (so that code paths in your application that
992
know about some plugins possibly being present will fail to import
993
those plugins even if they are installed.)
994
:return: Returns a command exit code or raises an exception.
746
The command-line arguments, without the program name from argv[0]
747
These should already be decoded. All library/test code calling
748
run_bzr should be passing valid strings (don't need decoding).
750
Returns a command status or raises an exception.
996
752
Special master options: these must come before the command because
997
753
they control how the command is interpreted.
1137
894
return ignore_pipe
1140
def install_bzr_command_hooks():
1141
"""Install the hooks to supply bzr's own commands."""
1142
if _list_bzr_commands in Command.hooks["list_commands"]:
1144
Command.hooks.install_named_hook("list_commands", _list_bzr_commands,
1146
Command.hooks.install_named_hook("get_command", _get_bzr_command,
1148
Command.hooks.install_named_hook("get_command", _get_plugin_command,
1149
"bzr plugin commands")
1150
Command.hooks.install_named_hook("get_command", _get_external_command,
1151
"bzr external command lookup")
1152
Command.hooks.install_named_hook("get_missing_command", _try_plugin_provider,
1153
"bzr plugin-provider-db check")
1157
def _specified_or_unicode_argv(argv):
1158
# For internal or testing use, argv can be passed. Otherwise, get it from
1159
# the process arguments in a unicode-safe way.
1161
return osutils.get_unicode_argv()
1165
# ensure all arguments are unicode strings
1167
if isinstance(a, unicode):
1170
new_argv.append(a.decode('ascii'))
1171
except UnicodeDecodeError:
1172
raise errors.BzrError("argv should be list of unicode strings.")
1176
def main(argv=None):
1177
"""Main entry point of command-line interface.
1179
Typically `bzrlib.initialize` should be called first.
1181
:param argv: list of unicode command-line arguments similar to sys.argv.
1182
argv[0] is script name usually, it will be ignored.
1183
Don't pass here sys.argv because this list contains plain strings
1184
and not unicode; pass None instead.
1186
:return: exit code of bzr command.
1188
argv = _specified_or_unicode_argv(argv)
1189
_register_builtin_commands()
899
bzrlib.ui.ui_factory = bzrlib.ui.make_ui_for_terminal(
900
sys.stdin, sys.stdout, sys.stderr)
902
# Is this a final release version? If so, we should suppress warnings
903
if bzrlib.version_info[3] == 'final':
904
from bzrlib import symbol_versioning
905
symbol_versioning.suppress_deprecation_warnings(override=False)
907
user_encoding = osutils.get_user_encoding()
908
argv = [a.decode(user_encoding) for a in argv[1:]]
909
except UnicodeDecodeError:
910
raise errors.BzrError(("Parameter '%r' is unsupported by the current "
1190
912
ret = run_bzr_catch_errors(argv)
1191
bzrlib.ui.ui_factory.log_transport_activity(
1192
display=('bytes' in debug.debug_flags))
1193
913
trace.mutter("return code %d", ret)
1197
917
def run_bzr_catch_errors(argv):
1198
"""Run a bzr command with parameters as described by argv.
1200
This function assumed that that UI layer is setup, that symbol deprecations
1201
are already applied, and that unicode decoding has already been performed on argv.
1203
# done here so that they're covered for every test run
1204
install_bzr_command_hooks()
1205
return exception_to_return_code(run_bzr, argv)
918
# Note: The except clause logic below should be kept in sync with the
919
# profile() routine in lsprof.py.
922
except (KeyboardInterrupt, Exception), e:
923
# used to handle AssertionError and KeyboardInterrupt
924
# specially here, but hopefully they're handled ok by the logger now
925
exc_info = sys.exc_info()
926
exitcode = trace.report_exception(exc_info, sys.stderr)
927
if os.environ.get('BZR_PDB'):
928
print '**** entering debugger'
931
if sys.version_info[:2] < (2, 6):
933
# pdb.post_mortem(tb)
934
# but because pdb.post_mortem gives bad results for tracebacks
935
# from inside generators, we do it manually.
936
# (http://bugs.python.org/issue4150, fixed in Python 2.6)
938
# Setup pdb on the traceback
941
p.setup(tb.tb_frame, tb)
942
# Point the debugger at the deepest frame of the stack
943
p.curindex = len(p.stack) - 1
944
p.curframe = p.stack[p.curindex]
945
# Start the pdb prompt.
946
p.print_stack_entry(p.stack[p.curindex])
1208
954
def run_bzr_catch_user_errors(argv):
added
removed
bzrlib/commands.py
