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 plain 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
input_encoding = getattr(sys.stdin, 'encoding', None)
241
if not input_encoding:
242
output_encoding = bzrlib.user_encoding
243
mutter('encoding stdout as bzrlib.user_encoding %r', output_encoding)
245
output_encoding = input_encoding
246
mutter('encoding stdout as sys.stdin encoding %r', output_encoding)
248
mutter('encoding stdout as sys.stdout encoding %r', output_encoding)
457
output_encoding = osutils.get_terminal_encoding()
250
# use 'replace' so that we don't abort if trying to write out
251
# in e.g. the default C locale.
252
self.outf = codecs.getwriter(output_encoding)(sys.stdout, errors=self.encoding_type)
459
self.outf = codecs.getwriter(output_encoding)(sys.stdout,
460
errors=self.encoding_type)
253
461
# For whatever reason codecs.getwriter() does not advertise its encoding
254
462
# it just returns the encoding of the wrapped file, which is completely
255
463
# bogus. So set the attribute, so we can find the correct encoding later.
256
464
self.outf.encoding = output_encoding
258
@deprecated_method(zero_eight)
259
def run_argv(self, argv):
260
"""Parse command line and run.
262
See run_argv_aliases for the 0.8 and beyond api.
264
return self.run_argv_aliases(argv)
266
466
def run_argv_aliases(self, argv, alias_argv=None):
267
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)
268
472
args, opts = parse_args(self, argv, alias_argv)
474
# Process the standard options
269
475
if 'help' in opts: # e.g. bzr add --help
270
from bzrlib.help import help_on_command
271
help_on_command(self.name())
476
sys.stdout.write(self.get_help_text())
273
# XXX: This should be handled by the parser
274
allowed_names = self.options().keys()
276
if oname not in allowed_names:
277
raise BzrCommandError("option '--%s' is not allowed for"
278
" 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'):
279
488
# mix arguments and options into one dictionary
280
489
cmdargs = _match_argform(self.name(), self.takes_args, args)
352
541
lookup table, something about the available options, what optargs
353
542
they take, and which commands will accept them.
355
# TODO: chop up this beast; make it a method of the Command
360
cmd_options = command.options()
362
proc_aliasarg = True # Are we processing alias_argv now?
363
for proc_argv in alias_argv, argv:
370
# We've received a standalone -- No more flags
374
# option names must not be unicode
378
mutter(" got option %r", a)
380
optname, optarg = a[2:].split('=', 1)
383
if optname not in cmd_options:
384
raise BzrOptionError('unknown long option %r for'
389
if shortopt in Option.SHORT_OPTIONS:
390
# Multi-character options must have a space to delimit
392
# ^^^ what does this mean? mbp 20051014
393
optname = Option.SHORT_OPTIONS[shortopt].name
395
# Single character short options, can be chained,
396
# and have their value appended to their name
398
if shortopt not in Option.SHORT_OPTIONS:
399
# We didn't find the multi-character name, and we
400
# didn't find the single char name
401
raise BzrError('unknown short option %r' % a)
402
optname = Option.SHORT_OPTIONS[shortopt].name
405
# There are extra things on this option
406
# see if it is the value, or if it is another
408
optargfn = Option.OPTIONS[optname].type
410
# This option does not take an argument, so the
411
# next entry is another short option, pack it
413
proc_argv.insert(0, '-' + a[2:])
415
# This option takes an argument, so pack it
419
if optname not in cmd_options:
420
raise BzrOptionError('unknown short option %r for'
422
(shortopt, command.name()))
424
# XXX: Do we ever want to support this, e.g. for -r?
426
raise BzrError('repeated option %r' % a)
427
elif optname in alias_opts:
428
# Replace what's in the alias with what's in the real
430
del alias_opts[optname]
432
proc_argv.insert(0, a)
435
raise BzrError('repeated option %r' % a)
437
option_obj = cmd_options[optname]
438
optargfn = option_obj.type
442
raise BzrError('option %r needs an argument' % a)
444
optarg = proc_argv.pop(0)
445
opts[optname] = optargfn(optarg)
447
alias_opts[optname] = optargfn(optarg)
450
raise BzrError('option %r takes no argument' % optname)
453
alias_opts[optname] = True
456
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])
457
554
return args, opts
474
571
argdict[argname + '_list'] = None
475
572
elif ap[-1] == '+':
477
raise BzrCommandError("command %r needs one or more %s"
478
% (cmd, argname.upper()))
574
raise errors.BzrCommandError("command %r needs one or more %s"
575
% (cmd, argname.upper()))
480
577
argdict[argname + '_list'] = args[:]
482
579
elif ap[-1] == '$': # all but one
483
580
if len(args) < 2:
484
raise BzrCommandError("command %r needs one or more %s"
485
% (cmd, argname.upper()))
581
raise errors.BzrCommandError("command %r needs one or more %s"
582
% (cmd, argname.upper()))
486
583
argdict[argname + '_list'] = args[:-1]
489
586
# just a plain arg
492
raise BzrCommandError("command %r requires argument %s"
493
% (cmd, argname.upper()))
589
raise errors.BzrCommandError("command %r requires argument %s"
590
% (cmd, argname.upper()))
495
592
argdict[argname] = args.pop(0)
498
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,
505
616
def apply_profiled(the_callable, *args, **kwargs):
684
836
from bzrlib.ui.text import TextUIFactory
685
## bzrlib.trace.enable_default_logging()
686
bzrlib.trace.log_startup(argv)
687
837
bzrlib.ui.ui_factory = TextUIFactory()
689
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 "
690
848
ret = run_bzr_catch_errors(argv)
691
mutter("return code %d", ret)
849
trace.mutter("return code %d", ret)
695
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.
700
# do this here inside the exception wrappers to catch EPIPE
858
except (KeyboardInterrupt, Exception), e:
703
859
# used to handle AssertionError and KeyboardInterrupt
704
860
# specially here, but hopefully they're handled ok by the logger now
706
if (isinstance(e, IOError)
707
and hasattr(e, 'errno')
708
and e.errno == errno.EPIPE):
709
bzrlib.trace.note('broken pipe')
712
bzrlib.trace.log_exception()
713
if os.environ.get('BZR_PDB'):
714
print '**** entering debugger'
716
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()
719
931
if __name__ == '__main__':
720
932
sys.exit(main(sys.argv))