357
358
summary, then a complete description of the command. A grammar
358
359
description will be inserted.
361
Other accepted names for this command.
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
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().
381
If true, this command isn't advertised. This is typically
361
:cvar aliases: Other accepted names for this command.
363
:cvar takes_args: List of argument forms, marked with whether they are
364
optional, repeated, etc. Examples::
366
['to_location', 'from_branch?', 'file*']
368
* 'to_location' is required
369
* 'from_branch' is optional
370
* 'file' can be specified 0 or more times
372
:cvar takes_options: List of options that may be given for this command.
373
These can be either strings, referring to globally-defined options, or
374
option objects. Retrieve through options().
376
:cvar hidden: If true, this command isn't advertised. This is typically
382
377
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
379
:cvar encoding_type: Command objects will get a 'outf' attribute, which has
380
been setup to properly handle encoding of unicode strings.
381
encoding_type determines what will happen when characters cannot be
384
* strict - abort if we cannot decode
385
* replace - put in a bogus character (typically '?')
386
* exact - do not encode sys.stdout
388
NOTE: by default on Windows, sys.stdout is opened as a text stream,
389
therefore LF line-endings are converted to CRLF. When a command uses
390
encoding_type = 'exact', then sys.stdout is forced to be a binary
391
stream, and line-endings will not mangled.
394
A string indicating the real name under which this command was
395
invoked, before expansion of aliases.
396
(This may be None if the command was constructed and run in-process.)
399
398
:cvar hooks: An instance of CommandHooks.
400
:cvar __doc__: The help shown by 'bzr help command' for this command.
401
This is set by assigning explicitly to __doc__ so that -OO can
405
__doc__ = "My help goes here"
403
409
takes_options = []
404
410
encoding_type = 'strict'
408
415
def __init__(self):
409
416
"""Construct an instance of this command."""
410
if self.__doc__ == Command.__doc__:
411
warn("No help message set for %r" % self)
412
417
# List of standard options directly supported
413
418
self.supported_std_options = []
414
419
self._setup_run()
508
517
# XXX: optparse implicitly rewraps the help, and not always perfectly,
509
518
# 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:
520
parser = option.get_optparser(self.options(), True)
521
options = parser.format_option_help()
522
# FIXME: According to the spec, ReST option lists actually don't
523
# support options like --1.14 so that causes syntax errors (in Sphinx
524
# at least). As that pattern always appears in the commands that
525
# break, we trap on that and then format that block of 'format' options
526
# as a literal block. We use the most recent format still listed so we
527
# don't have to do that too often -- vila 20110514
528
if not plain and options.find(' --1.14 ') != -1:
518
529
options = options.replace(' format:\n', ' format::\n\n', 1)
519
530
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:'):]
531
result += gettext(':Options:%s') % (options[len('options:'):],)
525
533
result += options
531
539
if sections.has_key(None):
532
540
text = sections.pop(None)
533
541
text = '\n '.join(text.splitlines())
534
result += ':%s:\n %s\n\n' % ('Description',text)
542
result += gettext(':Description:\n %s') % (text,) + '\n\n'
536
544
# Add the custom sections (e.g. Examples). Note that there's no need
537
545
# to indent these as they must be indented already in the source.
539
547
for label in order:
540
if sections.has_key(label):
541
result += ':%s:\n%s\n' % (label,sections[label])
548
if label in sections:
549
result += ':%s:\n%s\n' % (label, sections[label])
544
result += ("See bzr help %s for more details and examples.\n\n"
552
result += (gettext("See bzr help %s for more details and examples.\n\n")
547
555
# Add the aliases, source (plug-in) and see also links, if any
549
result += ':Aliases: '
557
result += gettext(':Aliases: ')
550
558
result += ', '.join(self.aliases) + '\n'
551
559
plugin_name = self.plugin_name()
552
560
if plugin_name is not None:
553
result += ':From: plugin "%s"\n' % plugin_name
561
result += gettext(':From: plugin "%s"\n') % plugin_name
554
562
see_also = self.get_see_also(additional_see_also)
556
564
if not plain and see_also_as_links:
562
570
see_also_links.append(item)
564
572
# Use a Sphinx link for this entry
565
link_text = ":doc:`%s <%s-help>`" % (item, item)
573
link_text = gettext(":doc:`%s <%s-help>`") % (item, item)
566
574
see_also_links.append(link_text)
567
575
see_also = see_also_links
568
result += ':See also: '
569
result += ', '.join(see_also) + '\n'
576
result += gettext(':See also: %s') % ', '.join(see_also) + '\n'
571
578
# If this will be rendered as plain text, convert it
762
793
These are all empty initially, because by default nothing should get
766
self.create_hook(HookPoint('extend_command',
796
Hooks.__init__(self, "bzrlib.commands", "Command.hooks")
797
self.add_hook('extend_command',
767
798
"Called after creating a command object to allow modifications "
768
799
"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',
800
"new bzrlib.commands.Command object.", (1, 13))
801
self.add_hook('get_command',
771
802
"Called when creating a single command. Called with "
772
803
"(cmd_or_None, command_name). get_command should either return "
773
804
"the cmd_or_None parameter, or a replacement Command object that "
774
805
"should be used for the command. Note that the Command.hooks "
775
806
"hooks are core infrastructure. Many users will prefer to use "
776
807
"bzrlib.commands.register_command or plugin_cmds.register_lazy.",
778
self.create_hook(HookPoint('get_missing_command',
809
self.add_hook('get_missing_command',
779
810
"Called when creating a single command if no command could be "
780
811
"found. Called with (command_name). get_missing_command should "
781
812
"either return None, or a Command object to be used for the "
782
"command.", (1, 17), None))
783
self.create_hook(HookPoint('list_commands',
814
self.add_hook('list_commands',
784
815
"Called when enumerating commands. Called with a set of "
785
816
"cmd_name strings for all the commands found so far. This set "
786
817
" is safe to mutate - e.g. to remove a command. "
787
818
"list_commands should return the updated set of command names.",
790
821
Command.hooks = CommandHooks()
808
options, args = parser.parse_args(args)
839
# for python 2.5 and later, optparse raises this exception if a non-ascii
840
# option name is given. See http://bugs.python.org/issue2931
842
options, args = parser.parse_args(args)
843
except UnicodeEncodeError,e:
844
raise errors.BzrCommandError('Only ASCII permitted in option names')
809
846
opts = dict([(k, v) for k, v in options.__dict__.iteritems() if
810
847
v is not option.OptionParser.DEFAULT_VALUE])
811
848
return args, opts
1077
1121
if not opt_no_aliases:
1078
1122
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
1124
argv[0] = alias_argv.pop(0)
1084
1126
cmd = 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
1127
cmd_obj = get_cmd_object(cmd, plugins_override=not opt_builtin)
1090
1128
run = cmd_obj.run_argv_aliases
1091
1129
run_argv = [argv, alias_argv]
1252
1289
class Provider(object):
1253
'''Generic class to be overriden by plugins'''
1290
"""Generic class to be overriden by plugins"""
1255
1292
def plugin_for_command(self, cmd_name):
1256
'''Takes a command and returns the information for that plugin
1293
"""Takes a command and returns the information for that plugin
1258
1295
:return: A dictionary with all the available information
1259
for the requested plugin
1296
for the requested plugin
1261
1298
raise NotImplementedError
1264
1301
class ProvidersRegistry(registry.Registry):
1265
'''This registry exists to allow other providers to exist'''
1302
"""This registry exists to allow other providers to exist"""
1267
1304
def __iter__(self):
1268
1305
for key, provider in self.iteritems():