113
108
def note(*args, **kwargs):
114
# FIXME note always emits utf-8, regardless of the terminal encoding
109
"""Output a note to the user.
111
Takes the same parameters as logging.info.
116
115
# FIXME: clearing the ui and then going through the abstract logging
117
116
# framework is whack; we should probably have a logging Handler that
118
117
# deals with terminal output if needed.
120
bzrlib.ui.ui_factory.clear_term()
118
ui.ui_factory.clear_term()
121
119
_bzr_logger.info(*args, **kwargs)
124
122
def warning(*args, **kwargs):
126
bzrlib.ui.ui_factory.clear_term()
123
ui.ui_factory.clear_term()
127
124
_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
def show_error(*args, **kwargs):
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128
"""Show an error message to the user.
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130
Don't use this for exceptions, use report_exception instead.
238
217
This sets the global _bzr_log_filename.
240
219
global _bzr_log_filename
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def _open_or_create_log_file(filename):
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"""Open existing log file, or create with ownership and permissions
224
It inherits the ownership and permissions (masked by umask) from
225
the containing directory to cope better with being run under sudo
226
with $HOME still set to the user's homedir.
228
flags = os.O_WRONLY | os.O_APPEND | osutils.O_TEXT
231
fd = os.open(filename, flags)
234
if e.errno != errno.ENOENT:
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fd = os.open(filename, flags | os.O_CREAT | os.O_EXCL, 0666)
239
if e.errno != errno.EEXIST:
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osutils.copy_ownership_from_path(filename)
244
return os.fdopen(fd, 'at', 0) # unbuffered
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_bzr_log_filename = _get_bzr_log_filename()
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_rollover_trace_maybe(_bzr_log_filename)
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bzr_log_file = open(_bzr_log_filename, 'at', buffering=0) # unbuffered
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# bzr_log_file.tell() on windows always return 0 until some writing done
250
bzr_log_file = _open_or_create_log_file(_bzr_log_filename)
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bzr_log_file.write('\n')
247
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if bzr_log_file.tell() <= 2:
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bzr_log_file.write("this is a debug log for diagnosing/reporting problems in bzr\n")
249
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bzr_log_file.write("you can delete or truncate this file, or include sections in\n")
250
255
bzr_log_file.write("bug reports to https://bugs.launchpad.net/bzr/+filebug\n\n")
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257
return bzr_log_file
259
except EnvironmentError, e:
253
260
# If we are failing to open the log, then most likely logging has not
254
261
# been set up yet. So we just write to stderr rather than using
255
262
# 'warning()'. If we using warning(), users get the unhelpful 'no
272
279
logging.getLogger("bzr").
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281
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
277
# get_terminal_encoding() from mutter()ing multiple times
278
term_encoding = osutils.get_terminal_encoding()
279
285
start_time = osutils.format_local_date(_bzr_log_start_time,
280
286
timezone='local')
281
# create encoded wrapper around stderr
282
287
bzr_log_file = _open_bzr_log()
283
288
if bzr_log_file is not None:
284
289
bzr_log_file.write(start_time.encode('utf-8') + '\n')
285
push_log_file(bzr_log_file,
290
memento = push_log_file(bzr_log_file,
286
291
r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s',
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292
r'%Y-%m-%d %H:%M:%S')
288
293
# after hooking output into bzr_log, we also need to attach a stderr
289
294
# handler, writing only at level info and with encoding
290
writer_factory = codecs.getwriter(term_encoding)
291
encoded_stderr = writer_factory(sys.stderr, errors='replace')
292
stderr_handler = logging.StreamHandler(encoded_stderr)
293
stderr_handler.setLevel(logging.INFO)
295
stderr_handler = EncodedStreamHandler(sys.stderr,
296
osutils.get_terminal_encoding(), 'replace', level=logging.INFO)
294
297
logging.getLogger('bzr').addHandler(stderr_handler)
297
301
def push_log_file(to_file, log_format=None, date_format=None):
300
304
:param to_file: A file-like object to which messages will be sent.
302
306
:returns: A memento that should be passed to _pop_log_file to restore the
303
previously active logging.
307
previously active logging.
305
309
global _trace_file
306
310
# make a new handler
307
new_handler = logging.StreamHandler(to_file)
308
new_handler.setLevel(logging.DEBUG)
311
new_handler = EncodedStreamHandler(to_file, "utf-8", level=logging.DEBUG)
309
312
if log_format is None:
310
313
log_format = '%(levelname)8s %(message)s'
311
314
new_handler.setFormatter(logging.Formatter(log_format, date_format))
333
336
def pop_log_file((magic, old_handlers, new_handler, old_trace_file, new_trace_file)):
334
337
"""Undo changes to logging/tracing done by _push_log_file.
336
This flushes, but does not close the trace file.
339
This flushes, but does not close the trace file (so that anything that was
338
342
Takes the memento returned from _push_log_file."""
339
343
global _trace_file
340
344
_trace_file = old_trace_file
341
345
bzr_logger = logging.getLogger('bzr')
342
346
bzr_logger.removeHandler(new_handler)
343
# must be closed, otherwise logging will try to close it atexit, and the
347
# must be closed, otherwise logging will try to close it at exit, and the
344
348
# file will likely already be closed underneath.
345
349
new_handler.close()
346
350
bzr_logger.handlers = old_handlers
347
new_trace_file.flush()
351
if new_trace_file is not None:
352
new_trace_file.flush()
350
355
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)
436
475
def report_exception(exc_info, err_file):
437
476
"""Report an exception to err_file (typically stderr) and to .bzr.log.
446
485
print_exception(exc_info, err_file)
447
486
return errors.EXIT_ERROR
448
487
exc_type, exc_object, exc_tb = exc_info
449
if (isinstance(exc_object, IOError)
450
and getattr(exc_object, 'errno', None) == errno.EPIPE):
451
err_file.write("bzr: broken pipe\n")
452
return errors.EXIT_ERROR
453
elif isinstance(exc_object, KeyboardInterrupt):
488
if isinstance(exc_object, KeyboardInterrupt):
454
489
err_file.write("bzr: interrupted\n")
455
490
return errors.EXIT_ERROR
456
491
elif isinstance(exc_object, MemoryError):
457
492
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")
458
497
return errors.EXIT_ERROR
459
498
elif isinstance(exc_object, ImportError) \
460
499
and str(exc_object).startswith("No module named "):
464
503
elif not getattr(exc_object, 'internal_error', True):
465
504
report_user_error(exc_info, err_file)
466
505
return errors.EXIT_ERROR
467
elif isinstance(exc_object, (OSError, IOError)):
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
468
510
# Might be nice to catch all of these and show them as something more
469
511
# specific, but there are too many cases at the moment.
470
512
report_user_error(exc_info, err_file)
519
565
def _flush_trace():
520
# run from atexit hook
566
# called from the bzrlib library finalizer returned by bzrlib.initialize()
521
567
global _trace_file
523
569
_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.