28
28
# TODO: "--profile=cum", to change sort order. Is there any value in leaving
29
29
# the profile output behind so it can be interactively examined?
34
from bzrlib.lazy_import import lazy_import
35
lazy_import(globals(), """
38
34
from warnings import warn
51
from bzrlib import registry
53
from bzrlib.hooks import Hooks
38
import bzrlib.errors as errors
39
from bzrlib.errors import (BzrError,
43
from bzrlib import option
54
44
from bzrlib.option import Option
57
class CommandInfo(object):
58
"""Information about a command."""
60
def __init__(self, aliases):
61
"""The list of aliases for the command."""
62
self.aliases = aliases
65
def from_command(klass, command):
66
"""Factory to construct a CommandInfo from a command."""
67
return klass(command.aliases)
70
class CommandRegistry(registry.Registry):
73
def _get_name(command_name):
74
if command_name.startswith("cmd_"):
75
return _unsquish_command_name(command_name)
79
def register(self, cmd, decorate=False):
80
"""Utility function to help register a command
82
:param cmd: Command subclass to register
83
:param decorate: If true, allow overriding an existing command
84
of the same name; the old command is returned by this function.
85
Otherwise it is an error to try to override an existing command.
88
k_unsquished = self._get_name(k)
90
previous = self.get(k_unsquished)
92
previous = _builtin_commands().get(k_unsquished)
93
info = CommandInfo.from_command(cmd)
95
registry.Registry.register(self, k_unsquished, cmd,
96
override_existing=decorate, info=info)
98
trace.log_error('Two plugins defined the same command: %r' % k)
99
trace.log_error('Not loading the one in %r' %
100
sys.modules[cmd.__module__])
101
trace.log_error('Previously this command was registered from %r' %
102
sys.modules[previous.__module__])
105
def register_lazy(self, command_name, aliases, module_name):
106
"""Register a command without loading its module.
108
:param command_name: The primary name of the command.
109
:param aliases: A list of aliases for the command.
110
:module_name: The module that the command lives in.
112
key = self._get_name(command_name)
113
registry.Registry.register_lazy(self, key, module_name, command_name,
114
info=CommandInfo(aliases))
117
plugin_cmds = CommandRegistry()
46
from bzrlib.symbol_versioning import (deprecated_method, zero_eight)
48
from bzrlib.trace import mutter, note, log_error, warning, be_quiet
120
53
def register_command(cmd, decorate=False):
54
"""Utility function to help register a command
56
:param cmd: Command subclass to register
57
:param decorate: If true, allow overriding an existing command
58
of the same name; the old command is returned by this function.
59
Otherwise it is an error to try to override an existing command.
121
61
global plugin_cmds
122
return plugin_cmds.register(cmd, decorate)
63
if k.startswith("cmd_"):
64
k_unsquished = _unsquish_command_name(k)
67
if k_unsquished not in plugin_cmds:
68
plugin_cmds[k_unsquished] = cmd
69
mutter('registered plugin command %s', k_unsquished)
70
if decorate and k_unsquished in builtin_command_names():
71
return _builtin_commands()[k_unsquished]
73
result = plugin_cmds[k_unsquished]
74
plugin_cmds[k_unsquished] = cmd
77
log_error('Two plugins defined the same command: %r' % k)
78
log_error('Not loading the one in %r' % sys.modules[cmd.__module__])
125
81
def _squish_command_name(cmd):
296
216
"""Construct an instance of this command."""
297
217
if self.__doc__ == Command.__doc__:
298
218
warn("No help message set for %r" % self)
299
# List of standard options directly supported
300
self.supported_std_options = []
302
def _maybe_expand_globs(self, file_list):
303
"""Glob expand file_list if the platform does not do that itself.
305
:return: A possibly empty list of unicode paths.
307
Introduced in bzrlib 0.18.
311
if sys.platform == 'win32':
312
file_list = win32utils.glob_expand(file_list)
313
return list(file_list)
316
"""Return single-line grammar for this command.
318
Only describes arguments, not options.
320
s = 'bzr ' + self.name() + ' '
321
for aname in self.takes_args:
322
aname = aname.upper()
323
if aname[-1] in ['$', '+']:
324
aname = aname[:-1] + '...'
325
elif aname[-1] == '?':
326
aname = '[' + aname[:-1] + ']'
327
elif aname[-1] == '*':
328
aname = '[' + aname[:-1] + '...]'
330
s = s[:-1] # remove last space
333
def get_help_text(self, additional_see_also=None, plain=True,
334
see_also_as_links=False):
335
"""Return a text string with help for this command.
337
:param additional_see_also: Additional help topics to be
339
:param plain: if False, raw help (reStructuredText) is
340
returned instead of plain text.
341
:param see_also_as_links: if True, convert items in 'See also'
342
list to internal links (used by bzr_man rstx generator)
346
raise NotImplementedError("sorry, no detailed help yet for %r" % self.name())
348
# Extract the summary (purpose) and sections out from the text
349
purpose,sections,order = self._get_help_parts(doc)
351
# If a custom usage section was provided, use it
352
if sections.has_key('Usage'):
353
usage = sections.pop('Usage')
355
usage = self._usage()
357
# The header is the purpose and usage
359
result += ':Purpose: %s\n' % purpose
360
if usage.find('\n') >= 0:
361
result += ':Usage:\n%s\n' % usage
363
result += ':Usage: %s\n' % usage
367
options = option.get_optparser(self.options()).format_option_help()
368
if options.startswith('Options:'):
369
result += ':' + options
370
elif options.startswith('options:'):
371
# Python 2.4 version of optparse
372
result += ':Options:' + options[len('options:'):]
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)
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])
391
# Add the aliases, source (plug-in) and see also links, if any
393
result += ':Aliases: '
394
result += ', '.join(self.aliases) + '\n'
395
plugin_name = self.plugin_name()
396
if plugin_name is not None:
397
result += ':From: plugin "%s"\n' % plugin_name
398
see_also = self.get_see_also(additional_see_also)
400
if not plain and see_also_as_links:
402
for item in see_also:
404
# topics doesn't have an independent section
405
# so don't create a real link
406
see_also_links.append(item)
408
# Use a reST link for this entry
409
see_also_links.append("`%s`_" % (item,))
410
see_also = see_also_links
411
result += ':See also: '
412
result += ', '.join(see_also) + '\n'
414
# If this will be rendered as plain text, convert it
416
import bzrlib.help_topics
417
result = bzrlib.help_topics.help_as_plain_text(result)
421
def _get_help_parts(text):
422
"""Split help text into a summary and named sections.
424
:return: (summary,sections,order) where summary is the top line and
425
sections is a dictionary of the rest indexed by section name.
426
order is the order the section appear in the text.
427
A section starts with a heading line of the form ":xxx:".
428
Indented text on following lines is the section value.
429
All text found outside a named section is assigned to the
430
default section which is given the key of None.
432
def save_section(sections, order, label, section):
434
if sections.has_key(label):
435
sections[label] += '\n' + section
438
sections[label] = section
440
lines = text.rstrip().splitlines()
441
summary = lines.pop(0)
444
label,section = None,''
446
if line.startswith(':') and line.endswith(':') and len(line) > 2:
447
save_section(sections, order, label, section)
448
label,section = line[1:-1],''
449
elif (label is not None) and len(line) > 1 and not line[0].isspace():
450
save_section(sections, order, label, section)
451
label,section = None,line
454
section += '\n' + line
457
save_section(sections, order, label, section)
458
return summary, sections, order
460
def get_help_topic(self):
461
"""Return the commands help topic - its name."""
464
def get_see_also(self, additional_terms=None):
465
"""Return a list of help topics that are related to this command.
467
The list is derived from the content of the _see_also attribute. Any
468
duplicates are removed and the result is in lexical order.
469
:param additional_terms: Additional help topics to cross-reference.
470
:return: A list of help topics.
472
see_also = set(getattr(self, '_see_also', []))
474
see_also.update(additional_terms)
475
return sorted(see_also)
477
220
def options(self):
478
221
"""Return dict of valid options for this command.
480
223
Maps from long option name to option object."""
481
r = Option.STD_OPTIONS.copy()
225
r['help'] = Option.OPTIONS['help']
483
226
for o in self.takes_options:
484
227
if isinstance(o, basestring):
485
o = option.Option.OPTIONS[o]
228
o = Option.OPTIONS[o]
487
if o.name in std_names:
488
self.supported_std_options.append(o.name)
491
232
def _setup_outf(self):
492
233
"""Return a file linked to stdout, which has proper encoding."""
234
assert self.encoding_type in ['strict', 'exact', 'replace']
493
236
# Originally I was using self.stdout, but that looks
494
237
# *way* too much like sys.stdout
495
238
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
239
self.outf = sys.stdout
505
output_encoding = osutils.get_terminal_encoding()
242
output_encoding = bzrlib.osutils.get_terminal_encoding()
507
self.outf = codecs.getwriter(output_encoding)(sys.stdout,
508
errors=self.encoding_type)
244
# use 'replace' so that we don't abort if trying to write out
245
# in e.g. the default C locale.
246
self.outf = codecs.getwriter(output_encoding)(sys.stdout, errors=self.encoding_type)
509
247
# For whatever reason codecs.getwriter() does not advertise its encoding
510
248
# it just returns the encoding of the wrapped file, which is completely
511
249
# bogus. So set the attribute, so we can find the correct encoding later.
512
250
self.outf.encoding = output_encoding
252
@deprecated_method(zero_eight)
253
def run_argv(self, argv):
254
"""Parse command line and run.
256
See run_argv_aliases for the 0.8 and beyond api.
258
return self.run_argv_aliases(argv)
514
260
def run_argv_aliases(self, argv, alias_argv=None):
515
261
"""Parse the command line and run with extra aliases in alias_argv."""
517
warn("Passing None for [] is deprecated from bzrlib 0.10",
263
warn("Passing None for [] is deprecated from bzrlib 0.10",
518
264
DeprecationWarning, stacklevel=2)
520
266
args, opts = parse_args(self, argv, alias_argv)
522
# Process the standard options
523
267
if 'help' in opts: # e.g. bzr add --help
524
sys.stdout.write(self.get_help_text())
268
from bzrlib.help import help_on_command
269
help_on_command(self.name())
526
trace.set_verbosity_level(option._verbosity_level)
527
if 'verbose' in self.supported_std_options:
528
opts['verbose'] = trace.is_verbose()
529
elif opts.has_key('verbose'):
531
if 'quiet' in self.supported_std_options:
532
opts['quiet'] = trace.is_quiet()
533
elif opts.has_key('quiet'):
536
271
# mix arguments and options into one dictionary
537
272
cmdargs = _match_argform(self.name(), self.takes_args, args)
638
385
argdict[argname + '_list'] = None
639
386
elif ap[-1] == '+':
641
raise errors.BzrCommandError("command %r needs one or more %s"
642
% (cmd, argname.upper()))
388
raise BzrCommandError("command %r needs one or more %s"
389
% (cmd, argname.upper()))
644
391
argdict[argname + '_list'] = args[:]
646
393
elif ap[-1] == '$': # all but one
647
394
if len(args) < 2:
648
raise errors.BzrCommandError("command %r needs one or more %s"
649
% (cmd, argname.upper()))
395
raise BzrCommandError("command %r needs one or more %s"
396
% (cmd, argname.upper()))
650
397
argdict[argname + '_list'] = args[:-1]
653
400
# just a plain arg
656
raise errors.BzrCommandError("command %r requires argument %s"
657
% (cmd, argname.upper()))
403
raise BzrCommandError("command %r requires argument %s"
404
% (cmd, argname.upper()))
659
406
argdict[argname] = args.pop(0)
662
raise errors.BzrCommandError("extra argument to command %s: %s"
409
raise BzrCommandError("extra argument to command %s: %s"
667
def apply_coveraged(dirname, the_callable, *args, **kwargs):
668
# Cannot use "import trace", as that would import bzrlib.trace instead of
669
# the standard library's trace.
670
trace = __import__('trace')
672
tracer = trace.Trace(count=1, trace=0)
673
sys.settrace(tracer.globaltrace)
675
ret = the_callable(*args, **kwargs)
678
results = tracer.results()
679
results.write_results(show_missing=1, summary=False,
683
416
def apply_profiled(the_callable, *args, **kwargs):
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 "
601
from bzrlib.ui.text import TextUIFactory
602
bzrlib.ui.ui_factory = TextUIFactory()
603
argv = [a.decode(bzrlib.user_encoding) for a in argv[1:]]
912
604
ret = run_bzr_catch_errors(argv)
913
trace.mutter("return code %d", ret)
605
mutter("return code %d", ret)
917
609
def run_bzr_catch_errors(argv):
918
# Note: The except clause logic below should be kept in sync with the
919
# profile() routine in lsprof.py.
921
611
return run_bzr(argv)
612
# do this here inside the exception wrappers to catch EPIPE
922
614
except (KeyboardInterrupt, Exception), e:
923
615
# used to handle AssertionError and KeyboardInterrupt
924
616
# 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)
617
bzrlib.trace.report_exception(sys.exc_info(), sys.stderr)
927
618
if os.environ.get('BZR_PDB'):
928
619
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])
954
def run_bzr_catch_user_errors(argv):
955
"""Run bzr and report user errors, but let internal errors propagate.
957
This is used for the test suite, and might be useful for other programs
958
that want to wrap the commandline interface.
963
if (isinstance(e, (OSError, IOError))
964
or not getattr(e, 'internal_error', True)):
965
trace.report_exception(sys.exc_info(), sys.stderr)
971
class HelpCommandIndex(object):
972
"""A index for bzr help that returns commands."""
975
self.prefix = 'commands/'
977
def get_topics(self, topic):
978
"""Search for topic amongst commands.
980
:param topic: A topic to search for.
981
:return: A list which is either empty or contains a single
984
if topic and topic.startswith(self.prefix):
985
topic = topic[len(self.prefix):]
987
cmd = _get_cmd_object(topic)
994
class Provider(object):
995
'''Generic class to be overriden by plugins'''
997
def plugin_for_command(self, cmd_name):
998
'''Takes a command and returns the information for that plugin
1000
:return: A dictionary with all the available information
1001
for the requested plugin
1003
raise NotImplementedError
1006
class ProvidersRegistry(registry.Registry):
1007
'''This registry exists to allow other providers to exist'''
1010
for key, provider in self.iteritems():
1013
command_providers_registry = ProvidersRegistry()
621
pdb.post_mortem(sys.exc_traceback)
1016
624
if __name__ == '__main__':
1017
625
sys.exit(main(sys.argv))