108
113
def note(*args, **kwargs):
109
"""Output a note to the user.
111
Takes the same parameters as logging.info.
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# FIXME note always emits utf-8, regardless of the terminal encoding
115
116
# FIXME: clearing the ui and then going through the abstract logging
116
117
# framework is whack; we should probably have a logging Handler that
117
118
# deals with terminal output if needed.
118
ui.ui_factory.clear_term()
120
bzrlib.ui.ui_factory.clear_term()
119
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_bzr_logger.info(*args, **kwargs)
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124
def warning(*args, **kwargs):
123
ui.ui_factory.clear_term()
126
bzrlib.ui.ui_factory.clear_term()
124
127
_bzr_logger.warning(*args, **kwargs)
130
@deprecated_function(deprecated_in((2, 1, 0)))
131
def info(*args, **kwargs):
132
"""Deprecated: use trace.note instead."""
133
note(*args, **kwargs)
136
@deprecated_function(deprecated_in((2, 1, 0)))
137
def log_error(*args, **kwargs):
138
"""Deprecated: use bzrlib.trace.show_error instead"""
139
_bzr_logger.error(*args, **kwargs)
142
@deprecated_function(deprecated_in((2, 1, 0)))
143
def error(*args, **kwargs):
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"""Deprecated: use bzrlib.trace.show_error instead"""
145
_bzr_logger.error(*args, **kwargs)
127
148
def show_error(*args, **kwargs):
128
149
"""Show an error message to the user.
279
300
logging.getLogger("bzr").
281
302
Output can be redirected away by calling _push_log_file.
283
:return: A memento from push_log_file for restoring the log state.
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# Do this before we open the log file, so we prevent
305
# get_terminal_encoding() from mutter()ing multiple times
306
term_encoding = osutils.get_terminal_encoding()
285
307
start_time = osutils.format_local_date(_bzr_log_start_time,
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308
timezone='local')
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# create encoded wrapper around stderr
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bzr_log_file = _open_bzr_log()
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311
if bzr_log_file is not None:
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312
bzr_log_file.write(start_time.encode('utf-8') + '\n')
290
memento = push_log_file(bzr_log_file,
313
push_log_file(bzr_log_file,
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314
r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s',
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315
r'%Y-%m-%d %H:%M:%S')
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316
# after hooking output into bzr_log, we also need to attach a stderr
294
317
# handler, writing only at level info and with encoding
295
stderr_handler = EncodedStreamHandler(sys.stderr,
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osutils.get_terminal_encoding(), 'replace', level=logging.INFO)
318
writer_factory = codecs.getwriter(term_encoding)
319
encoded_stderr = writer_factory(sys.stderr, errors='replace')
320
stderr_handler = logging.StreamHandler(encoded_stderr)
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stderr_handler.setLevel(logging.INFO)
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logging.getLogger('bzr').addHandler(stderr_handler)
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325
def push_log_file(to_file, log_format=None, date_format=None):
304
328
:param to_file: A file-like object to which messages will be sent.
306
330
:returns: A memento that should be passed to _pop_log_file to restore the
307
previously active logging.
331
previously active logging.
309
333
global _trace_file
310
334
# make a new handler
311
new_handler = EncodedStreamHandler(to_file, "utf-8", level=logging.DEBUG)
335
new_handler = logging.StreamHandler(to_file)
336
new_handler.setLevel(logging.DEBUG)
312
337
if log_format is None:
313
338
log_format = '%(levelname)8s %(message)s'
314
339
new_handler.setFormatter(logging.Formatter(log_format, date_format))
336
361
def pop_log_file((magic, old_handlers, new_handler, old_trace_file, new_trace_file)):
337
362
"""Undo changes to logging/tracing done by _push_log_file.
339
This flushes, but does not close the trace file (so that anything that was
364
This flushes, but does not close the trace file.
342
366
Takes the memento returned from _push_log_file."""
343
367
global _trace_file
344
368
_trace_file = old_trace_file
345
369
bzr_logger = logging.getLogger('bzr')
346
370
bzr_logger.removeHandler(new_handler)
347
# must be closed, otherwise logging will try to close it at exit, and the
371
# must be closed, otherwise logging will try to close it atexit, and the
348
372
# file will likely already be closed underneath.
349
373
new_handler.close()
350
374
bzr_logger.handlers = old_handlers
351
if new_trace_file is not None:
352
new_trace_file.flush()
375
new_trace_file.flush()
355
378
def log_exception_quietly():
440
def _dump_memory_usage(err_file):
443
fd, name = tempfile.mkstemp(prefix="bzr_memdump", suffix=".json")
444
dump_file = os.fdopen(fd, 'w')
445
from meliae import scanner
446
scanner.dump_gc_objects(dump_file)
447
err_file.write("Memory dumped to %s\n" % name)
449
err_file.write("Dumping memory requires meliae module.\n")
450
log_exception_quietly()
452
err_file.write("Exception while dumping memory.\n")
453
log_exception_quietly()
455
if dump_file is not None:
461
def _qualified_exception_name(eclass, unqualified_bzrlib_errors=False):
462
"""Give name of error class including module for non-builtin exceptions
464
If `unqualified_bzrlib_errors` is True, errors specific to bzrlib will
465
also omit the module prefix.
467
class_name = eclass.__name__
468
module_name = eclass.__module__
469
if module_name in ("exceptions", "__main__") or (
470
unqualified_bzrlib_errors and module_name == "bzrlib.errors"):
472
return "%s.%s" % (module_name, class_name)
475
464
def report_exception(exc_info, err_file):
476
465
"""Report an exception to err_file (typically stderr) and to .bzr.log.
485
474
print_exception(exc_info, err_file)
486
475
return errors.EXIT_ERROR
487
476
exc_type, exc_object, exc_tb = exc_info
488
if isinstance(exc_object, KeyboardInterrupt):
477
if (isinstance(exc_object, IOError)
478
and getattr(exc_object, 'errno', None) == errno.EPIPE):
479
err_file.write("bzr: broken pipe\n")
480
return errors.EXIT_ERROR
481
elif isinstance(exc_object, KeyboardInterrupt):
489
482
err_file.write("bzr: interrupted\n")
490
483
return errors.EXIT_ERROR
491
484
elif isinstance(exc_object, MemoryError):
492
485
err_file.write("bzr: out of memory\n")
493
if 'mem_dump' in debug.debug_flags:
494
_dump_memory_usage(err_file)
496
err_file.write("Use -Dmem_dump to dump memory to a file.\n")
497
486
return errors.EXIT_ERROR
498
487
elif isinstance(exc_object, ImportError) \
499
488
and str(exc_object).startswith("No module named "):
503
492
elif not getattr(exc_object, 'internal_error', True):
504
493
report_user_error(exc_info, err_file)
505
494
return errors.EXIT_ERROR
506
elif osutils.is_environment_error(exc_object):
507
if getattr(exc_object, 'errno', None) == errno.EPIPE:
508
err_file.write("bzr: broken pipe\n")
509
return errors.EXIT_ERROR
495
elif isinstance(exc_object, (OSError, IOError)):
510
496
# Might be nice to catch all of these and show them as something more
511
497
# specific, but there are too many cases at the moment.
512
498
report_user_error(exc_info, err_file)
565
547
def _flush_trace():
566
# called from the bzrlib library finalizer returned by bzrlib.initialize()
548
# run from atexit hook
567
549
global _trace_file
569
551
_trace_file.flush()
572
class EncodedStreamHandler(logging.Handler):
573
"""Robustly write logging events to a stream using the specified encoding
575
Messages are expected to be formatted to unicode, but UTF-8 byte strings
576
are also accepted. An error during formatting or a str message in another
577
encoding will be quitely noted as an error in the Bazaar log file.
579
The stream is not closed so sys.stdout or sys.stderr may be passed.
582
def __init__(self, stream, encoding=None, errors='strict', level=0):
583
logging.Handler.__init__(self, level)
586
encoding = getattr(stream, "encoding", "ascii")
587
self.encoding = encoding
591
flush = getattr(self.stream, "flush", None)
592
if flush is not None:
595
def emit(self, record):
597
line = self.format(record)
598
if not isinstance(line, unicode):
599
line = line.decode("utf-8")
600
self.stream.write(line.encode(self.encoding, self.errors) + "\n")
602
log_exception_quietly()
603
# Try saving the details that would have been logged in some form
604
msg = args = "<Unformattable>"
606
msg = repr(record.msg).encode("ascii")
607
args = repr(record.args).encode("ascii")
610
# Using mutter() bypasses the logging module and writes directly
611
# to the file so there's no danger of getting into a loop here.
612
mutter("Logging record unformattable: %s %% %s", msg, args)
615
class Config(object):
616
"""Configuration of message tracing in bzrlib.
618
This implements the context manager protocol and should manage any global
619
variables still used. The default config used is DefaultConfig, but
620
embedded uses of bzrlib may wish to use a custom manager.
624
return self # This is bound to the 'as' clause in a with statement.
626
def __exit__(self, exc_type, exc_val, exc_tb):
627
return False # propogate exceptions.
630
class DefaultConfig(Config):
631
"""A default configuration for tracing of messages in bzrlib.
633
This implements the context manager protocol.
637
self._original_filename = _bzr_log_filename
638
self._original_state = enable_default_logging()
639
return self # This is bound to the 'as' clause in a with statement.
641
def __exit__(self, exc_type, exc_val, exc_tb):
642
pop_log_file(self._original_state)
643
global _bzr_log_filename
644
_bzr_log_filename = self._original_filename
645
return False # propogate exceptions.