23
23
Messages are classified by severity levels: critical, error, warning, info,
26
They can be sent to two places: to stderr, and to ~/.bzr.log. For purposes
27
such as running the test suite, they can also be redirected away from both of
28
those two places to another location.
26
They can be sent to two places: stderr, and `$XDG_CACHE_HOME/breezy/brz.log`.
27
For purposes such as running the test suite, they can also be redirected away
28
from both of those two places to another location.
30
~/.bzr.log gets all messages, and full tracebacks for uncaught exceptions.
30
`brz.log` gets all messages, and full tracebacks for uncaught exceptions.
31
31
This trace file is always in UTF-8, regardless of the user's default encoding,
32
32
so that we can always rely on writing any message.
56
54
# increased cost of logging.py is not so bad, and we could standardize on
58
from io import StringIO
64
from bzrlib.lazy_import import lazy_import
64
from .lazy_import import lazy_import
65
65
lazy_import(globals(), """
66
from cStringIO import StringIO
75
72
lazy_import(globals(), """
85
# global verbosity for bzrlib; controls the log level for stderr; 0=normal; <0
85
# global verbosity for breezy; controls the log level for stderr; 0=normal; <0
86
86
# is quiet; >0 is verbose.
87
87
_verbosity_level = 0
92
92
# than push/pop_log_file.
95
# Absolute path for ~/.bzr.log. Not changed even if the log/trace output is
95
# Absolute path for brz.log. Not changed even if the log/trace output is
96
96
# redirected elsewhere. Used to show the location in --version.
97
_bzr_log_filename = None
97
_brz_log_filename = None
99
99
# The time the first message was written to the trace file, so that we can
100
100
# show relative times since startup.
101
_bzr_log_start_time = bzrlib._start_time
101
_brz_log_start_time = breezy._start_time
104
104
# held in a global for quick reference
105
_bzr_logger = logging.getLogger('bzr')
105
_brz_logger = logging.getLogger('brz')
108
108
def note(*args, **kwargs):
116
116
# framework is whack; we should probably have a logging Handler that
117
117
# deals with terminal output if needed.
118
118
ui.ui_factory.clear_term()
119
_bzr_logger.info(*args, **kwargs)
119
_brz_logger.info(*args, **kwargs)
122
122
def warning(*args, **kwargs):
123
123
ui.ui_factory.clear_term()
124
_bzr_logger.warning(*args, **kwargs)
124
_brz_logger.warning(*args, **kwargs)
127
127
def show_error(*args, **kwargs):
140
150
if (getattr(_trace_file, 'closed', None) is not None) and _trace_file.closed:
143
if isinstance(fmt, unicode):
144
fmt = fmt.encode('utf8')
153
# Let format strings be specified as ascii bytes to help Python 2
154
if isinstance(fmt, bytes):
155
fmt = fmt.decode('ascii', 'replace')
147
# It seems that if we do ascii % (unicode, ascii) we can
148
# get a unicode cannot encode ascii error, so make sure that "fmt"
149
# is a unicode string
152
if isinstance(arg, unicode):
153
arg = arg.encode('utf8')
154
real_args.append(arg)
155
out = fmt % tuple(real_args)
158
161
now = time.time()
159
timestamp = '%0.3f ' % (now - _bzr_log_start_time,)
160
out = timestamp + out + '\n'
161
_trace_file.write(out)
162
out = '%0.3f %s\n' % (now - _brz_log_start_time, out)
163
_trace_file.write(out.encode('utf-8'))
162
164
# there's no explicit flushing; the file is typically line buffered.
196
def _get_bzr_log_filename():
197
bzr_log = osutils.path_from_environ('BZR_LOG')
200
home = osutils.path_from_environ('BZR_HOME')
202
# GZ 2012-02-01: Logging to the home dir is bad, but XDG is unclear
203
# over what would be better. On windows, bug 240550
204
# suggests LOCALAPPDATA be used instead.
205
home = osutils._get_home_dir()
206
return os.path.join(home, '.bzr.log')
210
"""Open the .bzr.log trace file.
198
def _get_brz_log_filename():
199
"""Return the brz log filename.
201
:return: A path to the log file
202
:raise EnvironmentError: If the cache directory could not be created
204
brz_log = os.environ.get('BRZ_LOG')
207
return os.path.join(bedding.cache_dir(), 'brz.log')
211
"""Open the brz.log trace file.
212
213
If the log is more than a particular length, the old file is renamed to
213
.bzr.log.old and a new file is started. Otherwise, we append to the
214
brz.log.old and a new file is started. Otherwise, we append to the
216
This sets the global _bzr_log_filename.
217
This sets the global _brz_log_filename.
218
global _bzr_log_filename
219
global _brz_log_filename
220
221
def _open_or_create_log_file(filename):
221
222
"""Open existing log file, or create with ownership and permissions
230
231
fd = os.open(filename, flags)
233
234
if e.errno != errno.ENOENT:
236
fd = os.open(filename, flags | os.O_CREAT | os.O_EXCL, 0666)
237
fd = os.open(filename, flags | os.O_CREAT | os.O_EXCL, 0o666)
238
239
if e.errno != errno.EEXIST:
241
242
osutils.copy_ownership_from_path(filename)
243
return os.fdopen(fd, 'at', 0) # unbuffered
246
_bzr_log_filename = _get_bzr_log_filename()
247
_rollover_trace_maybe(_bzr_log_filename)
244
return os.fdopen(fd, 'ab', 0) # unbuffered
249
bzr_log_file = _open_or_create_log_file(_bzr_log_filename)
250
bzr_log_file.write('\n')
251
if bzr_log_file.tell() <= 2:
252
bzr_log_file.write("this is a debug log for diagnosing/reporting problems in bzr\n")
253
bzr_log_file.write("you can delete or truncate this file, or include sections in\n")
254
bzr_log_file.write("bug reports to https://bugs.launchpad.net/bzr/+filebug\n\n")
258
except EnvironmentError, e:
247
_brz_log_filename = _get_brz_log_filename()
248
_rollover_trace_maybe(_brz_log_filename)
250
brz_log_file = _open_or_create_log_file(_brz_log_filename)
251
brz_log_file.write(b'\n')
252
if brz_log_file.tell() <= 2:
254
b"this is a debug log for diagnosing/reporting problems in brz\n")
256
b"you can delete or truncate this file, or include sections in\n")
258
b"bug reports to https://bugs.launchpad.net/brz/+filebug\n\n")
262
except EnvironmentError as e:
259
263
# If we are failing to open the log, then most likely logging has not
260
264
# been set up yet. So we just write to stderr rather than using
261
265
# 'warning()'. If we using warning(), users get the unhelpful 'no
262
# handlers registered for "bzr"' when something goes wrong on the
266
# handlers registered for "brz"' when something goes wrong on the
263
267
# server. (bug #503886)
264
268
sys.stderr.write("failed to open trace file: %s\n" % (e,))
265
269
# TODO: What should happen if we fail to open the trace file? Maybe the
271
275
def enable_default_logging():
272
"""Configure default logging: messages to stderr and debug to .bzr.log
276
"""Configure default logging: messages to stderr and debug to brz.log
274
278
This should only be called once per process.
276
Non-command-line programs embedding bzrlib do not need to call this. They
280
Non-command-line programs embedding breezy do not need to call this. They
277
281
can instead either pass a file to _push_log_file, or act directly on
278
logging.getLogger("bzr").
282
logging.getLogger("brz").
280
284
Output can be redirected away by calling _push_log_file.
282
286
:return: A memento from push_log_file for restoring the log state.
284
start_time = osutils.format_local_date(_bzr_log_start_time,
288
start_time = osutils.format_local_date(_brz_log_start_time,
285
289
timezone='local')
286
bzr_log_file = _open_bzr_log()
287
if bzr_log_file is not None:
288
bzr_log_file.write(start_time.encode('utf-8') + '\n')
289
memento = push_log_file(bzr_log_file,
290
brz_log_file = _open_brz_log()
291
if brz_log_file is not None:
292
brz_log_file.write(start_time.encode('utf-8') + b'\n')
293
memento = push_log_file(
290
295
r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s',
291
296
r'%Y-%m-%d %H:%M:%S')
292
# after hooking output into bzr_log, we also need to attach a stderr
297
# after hooking output into brz_log, we also need to attach a stderr
293
298
# handler, writing only at level info and with encoding
294
stderr_handler = EncodedStreamHandler(sys.stderr,
295
osutils.get_terminal_encoding(), 'replace', level=logging.INFO)
296
logging.getLogger('bzr').addHandler(stderr_handler)
299
stderr_handler = logging.StreamHandler(stream=sys.stderr)
300
logging.getLogger('brz').addHandler(stderr_handler)
312
316
log_format = '%(levelname)8s %(message)s'
313
317
new_handler.setFormatter(logging.Formatter(log_format, date_format))
314
318
# save and remove any existing log handlers
315
bzr_logger = logging.getLogger('bzr')
316
old_handlers = bzr_logger.handlers[:]
317
del bzr_logger.handlers[:]
319
brz_logger = logging.getLogger('brz')
320
old_handlers = brz_logger.handlers[:]
321
del brz_logger.handlers[:]
318
322
# set that as the default logger
319
bzr_logger.addHandler(new_handler)
320
bzr_logger.setLevel(logging.DEBUG)
323
brz_logger.addHandler(new_handler)
324
brz_logger.setLevel(logging.DEBUG)
321
325
# TODO: check if any changes are needed to the root logger
323
# TODO: also probably need to save and restore the level on bzr_logger.
327
# TODO: also probably need to save and restore the level on brz_logger.
324
328
# but maybe we can avoid setting the logger level altogether, and just set
325
329
# the level on the handler?
328
332
old_trace_file = _trace_file
329
333
# send traces to the new one
330
334
_trace_file = to_file
331
result = new_handler, _trace_file
332
335
return ('log_memento', old_handlers, new_handler, old_trace_file, to_file)
335
def pop_log_file((magic, old_handlers, new_handler, old_trace_file, new_trace_file)):
338
def pop_log_file(entry):
336
339
"""Undo changes to logging/tracing done by _push_log_file.
338
341
This flushes, but does not close the trace file (so that anything that was
341
344
Takes the memento returned from _push_log_file."""
345
(magic, old_handlers, new_handler, old_trace_file, new_trace_file) = entry
342
346
global _trace_file
343
347
_trace_file = old_trace_file
344
bzr_logger = logging.getLogger('bzr')
345
bzr_logger.removeHandler(new_handler)
348
brz_logger = logging.getLogger('brz')
349
brz_logger.removeHandler(new_handler)
346
350
# must be closed, otherwise logging will try to close it at exit, and the
347
351
# file will likely already be closed underneath.
348
352
new_handler.close()
349
bzr_logger.handlers = old_handlers
353
brz_logger.handlers = old_handlers
350
354
if new_trace_file is not None:
351
355
new_trace_file.flush()
408
412
def debug_memory(message='', short=True):
409
413
"""Write out a memory dump."""
410
414
if sys.platform == 'win32':
411
from bzrlib import win32utils
415
from breezy import win32utils
412
416
win32utils.debug_memory_win32api(message=message, short=short)
414
418
_debug_memory_proc(message=message, short=short)
460
def _qualified_exception_name(eclass, unqualified_bzrlib_errors=False):
466
def _qualified_exception_name(eclass, unqualified_breezy_errors=False):
461
467
"""Give name of error class including module for non-builtin exceptions
463
If `unqualified_bzrlib_errors` is True, errors specific to bzrlib will
469
If `unqualified_breezy_errors` is True, errors specific to breezy will
464
470
also omit the module prefix.
466
472
class_name = eclass.__name__
467
473
module_name = eclass.__module__
468
if module_name in ("exceptions", "__main__") or (
469
unqualified_bzrlib_errors and module_name == "bzrlib.errors"):
474
if module_name in ("builtins", "exceptions", "__main__") or (
475
unqualified_breezy_errors and module_name == "breezy.errors"):
470
476
return class_name
471
477
return "%s.%s" % (module_name, class_name)
474
480
def report_exception(exc_info, err_file):
475
"""Report an exception to err_file (typically stderr) and to .bzr.log.
481
"""Report an exception to err_file (typically stderr) and to brz.log.
477
483
This will show either a full traceback or a short message as appropriate.
479
485
:return: The appropriate exit code for this error.
481
# Log the full traceback to ~/.bzr.log
487
# Log the full traceback to brz.log
482
488
log_exception_quietly()
483
489
if 'error' in debug.debug_flags:
484
490
print_exception(exc_info, err_file)
485
491
return errors.EXIT_ERROR
486
492
exc_type, exc_object, exc_tb = exc_info
487
493
if isinstance(exc_object, KeyboardInterrupt):
488
err_file.write("bzr: interrupted\n")
494
err_file.write("brz: interrupted\n")
489
495
return errors.EXIT_ERROR
490
496
elif isinstance(exc_object, MemoryError):
491
err_file.write("bzr: out of memory\n")
497
err_file.write("brz: out of memory\n")
492
498
if 'mem_dump' in debug.debug_flags:
493
499
_dump_memory_usage(err_file)
495
501
err_file.write("Use -Dmem_dump to dump memory to a file.\n")
496
502
return errors.EXIT_ERROR
497
503
elif isinstance(exc_object, ImportError) \
498
and str(exc_object).startswith("No module named "):
499
report_user_error(exc_info, err_file,
504
and str(exc_object).startswith("No module named "):
500
507
'You may need to install this Python library separately.')
501
508
return errors.EXIT_ERROR
502
509
elif not getattr(exc_object, 'internal_error', True):
503
510
report_user_error(exc_info, err_file)
504
511
return errors.EXIT_ERROR
505
elif osutils.is_environment_error(exc_object):
512
elif isinstance(exc_object, EnvironmentError):
506
513
if getattr(exc_object, 'errno', None) == errno.EPIPE:
507
err_file.write("bzr: broken pipe\n")
514
err_file.write("brz: broken pipe\n")
508
515
return errors.EXIT_ERROR
509
516
# Might be nice to catch all of these and show them as something more
510
517
# specific, but there are too many cases at the moment.
518
525
def print_exception(exc_info, err_file):
519
526
exc_type, exc_object, exc_tb = exc_info
520
err_file.write("bzr: ERROR: %s.%s: %s\n" % (
521
exc_type.__module__, exc_type.__name__, exc_object))
527
err_file.write("brz: ERROR: %s: %s\n" % (
528
_qualified_exception_name(exc_type), exc_object))
522
529
err_file.write('\n')
523
530
traceback.print_exception(exc_type, exc_object, exc_tb, file=err_file)
533
540
:param advice: Extra advice to the user to be printed following the
536
err_file.write("bzr: ERROR: %s\n" % (exc_info[1],))
543
err_file.write(("brz: ERROR: %s\n" % (str(exc_info[1]),)))
538
err_file.write("%s\n" % (advice,))
545
err_file.write(("%s\n" % advice))
541
548
def report_bug(exc_info, err_file):
542
"""Report an exception that probably indicates a bug in bzr"""
543
from bzrlib.crash import report_bug
549
"""Report an exception that probably indicates a bug in brz"""
550
from breezy.crash import report_bug
544
551
report_bug(exc_info, err_file)
547
554
def _flush_stdout_stderr():
548
# called from the bzrlib library finalizer returned by bzrlib.initialize()
555
# called from the breezy library finalizer returned by breezy.initialize()
550
557
sys.stdout.flush()
551
558
sys.stderr.flush()
552
except ValueError, e:
553
560
# On Windows, I get ValueError calling stdout.flush() on a closed
558
565
if e.errno in [errno.EINVAL, errno.EPIPE]:
594
601
def emit(self, record):
603
if not isinstance(record.msg, str):
604
msg = record.msg.decode("utf-8")
596
606
line = self.format(record)
597
if not isinstance(line, unicode):
607
if not isinstance(line, str):
598
608
line = line.decode("utf-8")
599
self.stream.write(line.encode(self.encoding, self.errors) + "\n")
609
self.stream.write(line.encode(self.encoding, self.errors) + b"\n")
600
610
except Exception:
601
611
log_exception_quietly()
602
612
# Try saving the details that would have been logged in some form
603
613
msg = args = "<Unformattable>"
605
msg = repr(record.msg).encode("ascii")
606
args = repr(record.args).encode("ascii")
615
msg = repr(record.msg)
616
args = repr(record.args)
607
617
except Exception:
609
619
# Using mutter() bypasses the logging module and writes directly
614
624
class Config(object):
615
"""Configuration of message tracing in bzrlib.
625
"""Configuration of message tracing in breezy.
617
627
This implements the context manager protocol and should manage any global
618
628
variables still used. The default config used is DefaultConfig, but
619
embedded uses of bzrlib may wish to use a custom manager.
629
embedded uses of breezy may wish to use a custom manager.
622
632
def __enter__(self):
623
return self # This is bound to the 'as' clause in a with statement.
633
return self # This is bound to the 'as' clause in a with statement.
625
635
def __exit__(self, exc_type, exc_val, exc_tb):
626
return False # propogate exceptions.
636
return False # propogate exceptions.
629
639
class DefaultConfig(Config):
630
"""A default configuration for tracing of messages in bzrlib.
640
"""A default configuration for tracing of messages in breezy.
632
642
This implements the context manager protocol.
635
645
def __enter__(self):
636
self._original_filename = _bzr_log_filename
646
self._original_filename = _brz_log_filename
637
647
self._original_state = enable_default_logging()
638
return self # This is bound to the 'as' clause in a with statement.
648
return self # This is bound to the 'as' clause in a with statement.
640
650
def __exit__(self, exc_type, exc_val, exc_tb):
641
651
pop_log_file(self._original_state)
642
global _bzr_log_filename
643
_bzr_log_filename = self._original_filename
644
return False # propogate exceptions.
652
global _brz_log_filename
653
_brz_log_filename = self._original_filename
654
return False # propogate exceptions.