212
251
"""Construct an instance of this command."""
213
252
if self.__doc__ == Command.__doc__:
214
253
warn("No help message set for %r" % self)
254
# List of standard options directly supported
255
self.supported_std_options = []
257
def _maybe_expand_globs(self, file_list):
258
"""Glob expand file_list if the platform does not do that itself.
260
:return: A possibly empty list of unicode paths.
262
Introduced in bzrlib 0.18.
266
if sys.platform == 'win32':
267
file_list = win32utils.glob_expand(file_list)
268
return list(file_list)
271
"""Return single-line grammar for this command.
273
Only describes arguments, not options.
275
s = 'bzr ' + self.name() + ' '
276
for aname in self.takes_args:
277
aname = aname.upper()
278
if aname[-1] in ['$', '+']:
279
aname = aname[:-1] + '...'
280
elif aname[-1] == '?':
281
aname = '[' + aname[:-1] + ']'
282
elif aname[-1] == '*':
283
aname = '[' + aname[:-1] + '...]'
285
s = s[:-1] # remove last space
288
def get_help_text(self, additional_see_also=None, plain=True,
289
see_also_as_links=False):
290
"""Return a text string with help for this command.
292
:param additional_see_also: Additional help topics to be
294
:param plain: if False, raw help (reStructuredText) is
295
returned instead of plain text.
296
:param see_also_as_links: if True, convert items in 'See also'
297
list to internal links (used by bzr_man rstx generator)
301
raise NotImplementedError("sorry, no detailed help yet for %r" % self.name())
303
# Extract the summary (purpose) and sections out from the text
304
purpose,sections = self._get_help_parts(doc)
306
# If a custom usage section was provided, use it
307
if sections.has_key('Usage'):
308
usage = sections.pop('Usage')
310
usage = self._usage()
312
# The header is the purpose and usage
314
result += ':Purpose: %s\n' % purpose
315
if usage.find('\n') >= 0:
316
result += ':Usage:\n%s\n' % usage
318
result += ':Usage: %s\n' % usage
322
options = option.get_optparser(self.options()).format_option_help()
323
if options.startswith('Options:'):
324
result += ':' + options
325
elif options.startswith('options:'):
326
# Python 2.4 version of optparse
327
result += ':Options:' + options[len('options:'):]
332
# Add the description, indenting it 2 spaces
333
# to match the indentation of the options
334
if sections.has_key(None):
335
text = sections.pop(None)
336
text = '\n '.join(text.splitlines())
337
result += ':%s:\n %s\n\n' % ('Description',text)
339
# Add the custom sections (e.g. Examples). Note that there's no need
340
# to indent these as they must be indented already in the source.
342
labels = sorted(sections.keys())
344
result += ':%s:\n%s\n\n' % (label,sections[label])
346
# Add the aliases, source (plug-in) and see also links, if any
348
result += ':Aliases: '
349
result += ', '.join(self.aliases) + '\n'
350
plugin_name = self.plugin_name()
351
if plugin_name is not None:
352
result += ':From: plugin "%s"\n' % plugin_name
353
see_also = self.get_see_also(additional_see_also)
355
if not plain and see_also_as_links:
357
for item in see_also:
359
# topics doesn't have an independent section
360
# so don't create a real link
361
see_also_links.append(item)
363
# Use a reST link for this entry
364
see_also_links.append("`%s`_" % (item,))
365
see_also = see_also_links
366
result += ':See also: '
367
result += ', '.join(see_also) + '\n'
369
# If this will be rendered as plan text, convert it
371
import bzrlib.help_topics
372
result = bzrlib.help_topics.help_as_plain_text(result)
376
def _get_help_parts(text):
377
"""Split help text into a summary and named sections.
379
:return: (summary,sections) where summary is the top line and
380
sections is a dictionary of the rest indexed by section name.
381
A section starts with a heading line of the form ":xxx:".
382
Indented text on following lines is the section value.
383
All text found outside a named section is assigned to the
384
default section which is given the key of None.
386
def save_section(sections, label, section):
388
if sections.has_key(label):
389
sections[label] += '\n' + section
391
sections[label] = section
393
lines = text.rstrip().splitlines()
394
summary = lines.pop(0)
396
label,section = None,''
398
if line.startswith(':') and line.endswith(':') and len(line) > 2:
399
save_section(sections, label, section)
400
label,section = line[1:-1],''
401
elif (label is not None) and len(line) > 1 and not line[0].isspace():
402
save_section(sections, label, section)
403
label,section = None,line
406
section += '\n' + line
409
save_section(sections, label, section)
410
return summary, sections
412
def get_help_topic(self):
413
"""Return the commands help topic - its name."""
416
def get_see_also(self, additional_terms=None):
417
"""Return a list of help topics that are related to this command.
419
The list is derived from the content of the _see_also attribute. Any
420
duplicates are removed and the result is in lexical order.
421
:param additional_terms: Additional help topics to cross-reference.
422
:return: A list of help topics.
424
see_also = set(getattr(self, '_see_also', []))
426
see_also.update(additional_terms)
427
return sorted(see_also)
216
429
def options(self):
217
430
"""Return dict of valid options for this command.
219
432
Maps from long option name to option object."""
221
r['help'] = Option.OPTIONS['help']
433
r = Option.STD_OPTIONS.copy()
222
435
for o in self.takes_options:
223
if not isinstance(o, Option):
224
o = Option.OPTIONS[o]
436
if isinstance(o, basestring):
437
o = option.Option.OPTIONS[o]
439
if o.name in std_names:
440
self.supported_std_options.append(o.name)
228
443
def _setup_outf(self):
229
444
"""Return a file linked to stdout, which has proper encoding."""
230
assert self.encoding_type in ['strict', 'exact', 'replace']
232
445
# Originally I was using self.stdout, but that looks
233
446
# *way* too much like sys.stdout
234
447
if self.encoding_type == 'exact':
448
# force sys.stdout to be binary stream on win32
449
if sys.platform == 'win32':
450
fileno = getattr(sys.stdout, 'fileno', None)
453
msvcrt.setmode(fileno(), os.O_BINARY)
235
454
self.outf = sys.stdout
238
output_encoding = getattr(sys.stdout, 'encoding', None)
239
if not output_encoding:
240
output_encoding = bzrlib.user_encoding
241
mutter('encoding stdout bzrlib.user_encoding %r', output_encoding)
243
mutter('encoding stdout log as sys.stdout encoding %r', output_encoding)
245
# use 'replace' so that we don't abort if trying to write out
246
# in e.g. the default C locale.
247
self.outf = codecs.getwriter(output_encoding)(sys.stdout, errors=self.encoding_type)
249
@deprecated_method(zero_eight)
250
def run_argv(self, argv):
251
"""Parse command line and run.
253
See run_argv_aliases for the 0.8 and beyond api.
255
return self.run_argv_aliases(argv)
457
output_encoding = osutils.get_terminal_encoding()
459
self.outf = codecs.getwriter(output_encoding)(sys.stdout,
460
errors=self.encoding_type)
461
# For whatever reason codecs.getwriter() does not advertise its encoding
462
# it just returns the encoding of the wrapped file, which is completely
463
# bogus. So set the attribute, so we can find the correct encoding later.
464
self.outf.encoding = output_encoding
257
466
def run_argv_aliases(self, argv, alias_argv=None):
258
467
"""Parse the command line and run with extra aliases in alias_argv."""
469
warn("Passing None for [] is deprecated from bzrlib 0.10",
470
DeprecationWarning, stacklevel=2)
259
472
args, opts = parse_args(self, argv, alias_argv)
474
# Process the standard options
260
475
if 'help' in opts: # e.g. bzr add --help
261
from bzrlib.help import help_on_command
262
help_on_command(self.name())
476
sys.stdout.write(self.get_help_text())
264
# XXX: This should be handled by the parser
265
allowed_names = self.options().keys()
267
if oname not in allowed_names:
268
raise BzrCommandError("option '--%s' is not allowed for"
269
" command %r" % (oname, self.name()))
478
trace.set_verbosity_level(option._verbosity_level)
479
if 'verbose' in self.supported_std_options:
480
opts['verbose'] = trace.is_verbose()
481
elif opts.has_key('verbose'):
483
if 'quiet' in self.supported_std_options:
484
opts['quiet'] = trace.is_quiet()
485
elif opts.has_key('quiet'):
270
488
# mix arguments and options into one dictionary
271
489
cmdargs = _match_argform(self.name(), self.takes_args, args)
343
541
lookup table, something about the available options, what optargs
344
542
they take, and which commands will accept them.
346
# TODO: chop up this beast; make it a method of the Command
351
cmd_options = command.options()
353
proc_aliasarg = True # Are we processing alias_argv now?
354
for proc_argv in alias_argv, argv:
361
# We've received a standalone -- No more flags
365
# option names must not be unicode
369
mutter(" got option %r", a)
371
optname, optarg = a[2:].split('=', 1)
374
if optname not in cmd_options:
375
raise BzrOptionError('unknown long option %r for'
380
if shortopt in Option.SHORT_OPTIONS:
381
# Multi-character options must have a space to delimit
383
# ^^^ what does this mean? mbp 20051014
384
optname = Option.SHORT_OPTIONS[shortopt].name
386
# Single character short options, can be chained,
387
# and have their value appended to their name
389
if shortopt not in Option.SHORT_OPTIONS:
390
# We didn't find the multi-character name, and we
391
# didn't find the single char name
392
raise BzrError('unknown short option %r' % a)
393
optname = Option.SHORT_OPTIONS[shortopt].name
396
# There are extra things on this option
397
# see if it is the value, or if it is another
399
optargfn = Option.OPTIONS[optname].type
401
# This option does not take an argument, so the
402
# next entry is another short option, pack it
404
proc_argv.insert(0, '-' + a[2:])
406
# This option takes an argument, so pack it
410
if optname not in cmd_options:
411
raise BzrOptionError('unknown short option %r for'
413
(shortopt, command.name()))
415
# XXX: Do we ever want to support this, e.g. for -r?
417
raise BzrError('repeated option %r' % a)
418
elif optname in alias_opts:
419
# Replace what's in the alias with what's in the real
421
del alias_opts[optname]
423
proc_argv.insert(0, a)
426
raise BzrError('repeated option %r' % a)
428
option_obj = cmd_options[optname]
429
optargfn = option_obj.type
433
raise BzrError('option %r needs an argument' % a)
435
optarg = proc_argv.pop(0)
436
opts[optname] = optargfn(optarg)
438
alias_opts[optname] = optargfn(optarg)
441
raise BzrError('option %r takes no argument' % optname)
444
alias_opts[optname] = True
447
proc_aliasarg = False # Done with alias argv
544
# TODO: make it a method of the Command?
545
parser = option.get_optparser(command.options())
546
if alias_argv is not None:
547
args = alias_argv + argv
551
options, args = parser.parse_args(args)
552
opts = dict([(k, v) for k, v in options.__dict__.iteritems() if
553
v is not option.OptionParser.DEFAULT_VALUE])
448
554
return args, opts
465
571
argdict[argname + '_list'] = None
466
572
elif ap[-1] == '+':
468
raise BzrCommandError("command %r needs one or more %s"
469
% (cmd, argname.upper()))
574
raise errors.BzrCommandError("command %r needs one or more %s"
575
% (cmd, argname.upper()))
471
577
argdict[argname + '_list'] = args[:]
473
579
elif ap[-1] == '$': # all but one
474
580
if len(args) < 2:
475
raise BzrCommandError("command %r needs one or more %s"
476
% (cmd, argname.upper()))
581
raise errors.BzrCommandError("command %r needs one or more %s"
582
% (cmd, argname.upper()))
477
583
argdict[argname + '_list'] = args[:-1]
480
586
# just a plain arg
483
raise BzrCommandError("command %r requires argument %s"
484
% (cmd, argname.upper()))
589
raise errors.BzrCommandError("command %r requires argument %s"
590
% (cmd, argname.upper()))
486
592
argdict[argname] = args.pop(0)
489
raise BzrCommandError("extra argument to command %s: %s"
595
raise errors.BzrCommandError("extra argument to command %s: %s"
600
def apply_coveraged(dirname, the_callable, *args, **kwargs):
601
# Cannot use "import trace", as that would import bzrlib.trace instead of
602
# the standard library's trace.
603
trace = __import__('trace')
605
tracer = trace.Trace(count=1, trace=0)
606
sys.settrace(tracer.globaltrace)
608
ret = the_callable(*args, **kwargs)
611
results = tracer.results()
612
results.write_results(show_missing=1, summary=False,
496
616
def apply_profiled(the_callable, *args, **kwargs):
675
836
from bzrlib.ui.text import TextUIFactory
676
## bzrlib.trace.enable_default_logging()
677
bzrlib.trace.log_startup(argv)
678
837
bzrlib.ui.ui_factory = TextUIFactory()
680
argv = [a.decode(bzrlib.user_encoding) for a in argv[1:]]
839
# Is this a final release version? If so, we should suppress warnings
840
if bzrlib.version_info[3] == 'final':
841
from bzrlib import symbol_versioning
842
symbol_versioning.suppress_deprecation_warnings(override=False)
844
argv = [a.decode(bzrlib.user_encoding) for a in argv[1:]]
845
except UnicodeDecodeError:
846
raise errors.BzrError(("Parameter '%r' is unsupported by the current "
681
848
ret = run_bzr_catch_errors(argv)
682
mutter("return code %d", ret)
849
trace.mutter("return code %d", ret)
686
853
def run_bzr_catch_errors(argv):
854
# Note: The except clause logic below should be kept in sync with the
855
# profile() routine in lsprof.py.
691
# do this here inside the exception wrappers to catch EPIPE
858
except (KeyboardInterrupt, Exception), e:
694
859
# used to handle AssertionError and KeyboardInterrupt
695
860
# specially here, but hopefully they're handled ok by the logger now
697
if (isinstance(e, IOError)
698
and hasattr(e, 'errno')
699
and e.errno == errno.EPIPE):
700
bzrlib.trace.note('broken pipe')
703
bzrlib.trace.log_exception()
704
if os.environ.get('BZR_PDB'):
705
print '**** entering debugger'
707
pdb.post_mortem(sys.exc_traceback)
861
exitcode = trace.report_exception(sys.exc_info(), sys.stderr)
862
if os.environ.get('BZR_PDB'):
863
print '**** entering debugger'
865
pdb.post_mortem(sys.exc_traceback)
869
def run_bzr_catch_user_errors(argv):
870
"""Run bzr and report user errors, but let internal errors propagate.
872
This is used for the test suite, and might be useful for other programs
873
that want to wrap the commandline interface.
878
if (isinstance(e, (OSError, IOError))
879
or not getattr(e, 'internal_error', True)):
880
trace.report_exception(sys.exc_info(), sys.stderr)
886
class HelpCommandIndex(object):
887
"""A index for bzr help that returns commands."""
890
self.prefix = 'commands/'
892
def get_topics(self, topic):
893
"""Search for topic amongst commands.
895
:param topic: A topic to search for.
896
:return: A list which is either empty or contains a single
899
if topic and topic.startswith(self.prefix):
900
topic = topic[len(self.prefix):]
902
cmd = _get_cmd_object(topic)
909
class Provider(object):
910
'''Generic class to be overriden by plugins'''
912
def plugin_for_command(self, cmd_name):
913
'''Takes a command and returns the information for that plugin
915
:return: A dictionary with all the available information
916
for the requested plugin
918
raise NotImplementedError
921
class ProvidersRegistry(registry.Registry):
922
'''This registry exists to allow other providers to exist'''
925
for key, provider in self.iteritems():
928
command_providers_registry = ProvidersRegistry()
710
931
if __name__ == '__main__':
711
932
sys.exit(main(sys.argv))