108
109
def note(*args, **kwargs):
109
"""Output a note to the user.
111
Takes the same parameters as logging.info.
110
# FIXME note always emits utf-8, regardless of the terminal encoding
115
112
# FIXME: clearing the ui and then going through the abstract logging
116
113
# framework is whack; we should probably have a logging Handler that
117
114
# deals with terminal output if needed.
118
ui.ui_factory.clear_term()
116
bzrlib.ui.ui_factory.clear_term()
119
117
_bzr_logger.info(*args, **kwargs)
122
120
def warning(*args, **kwargs):
123
ui.ui_factory.clear_term()
122
bzrlib.ui.ui_factory.clear_term()
124
123
_bzr_logger.warning(*args, **kwargs)
127
def show_error(*args, **kwargs):
128
"""Show an error message to the user.
130
Don't use this for exceptions, use report_exception instead.
132
_bzr_logger.error(*args, **kwargs)
126
# configure convenient aliases for output routines
128
# TODO: deprecate them, have one name for each.
130
log_error = _bzr_logger.error
131
error = _bzr_logger.error
135
134
def mutter(fmt, *args):
136
135
if _trace_file is None:
138
# XXX: Don't check this every time; instead anyone who closes the file
139
# ought to deregister it. We can tolerate None.
140
137
if (getattr(_trace_file, 'closed', None) is not None) and _trace_file.closed:
196
189
def _get_bzr_log_filename():
197
bzr_log = osutils.path_from_environ('BZR_LOG')
190
bzr_log = os.environ.get('BZR_LOG')
200
home = osutils.path_from_environ('BZR_HOME')
193
home = os.environ.get('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()
195
if sys.platform == 'win32':
196
from bzrlib import win32utils
197
home = win32utils.get_home_location()
199
home = os.path.expanduser('~')
206
200
return os.path.join(home, '.bzr.log')
209
203
def _open_bzr_log():
210
"""Open the .bzr.log trace file.
204
"""Open the .bzr.log trace file.
212
206
If the log is more than a particular length, the old file is renamed to
213
207
.bzr.log.old and a new file is started. Otherwise, we append to the
216
210
This sets the global _bzr_log_filename.
218
212
global _bzr_log_filename
220
def _open_or_create_log_file(filename):
221
"""Open existing log file, or create with ownership and permissions
223
It inherits the ownership and permissions (masked by umask) from
224
the containing directory to cope better with being run under sudo
225
with $HOME still set to the user's homedir.
227
flags = os.O_WRONLY | os.O_APPEND | osutils.O_TEXT
230
fd = os.open(filename, flags)
233
if e.errno != errno.ENOENT:
236
fd = os.open(filename, flags | os.O_CREAT | os.O_EXCL, 0666)
238
if e.errno != errno.EEXIST:
241
osutils.copy_ownership_from_path(filename)
243
return os.fdopen(fd, 'at', 0) # unbuffered
246
213
_bzr_log_filename = _get_bzr_log_filename()
247
214
_rollover_trace_maybe(_bzr_log_filename)
249
bzr_log_file = _open_or_create_log_file(_bzr_log_filename)
216
bzr_log_file = open(_bzr_log_filename, 'at', 1) # line buffered
217
# bzr_log_file.tell() on windows always return 0 until some writing done
250
218
bzr_log_file.write('\n')
251
219
if bzr_log_file.tell() <= 2:
252
220
bzr_log_file.write("this is a debug log for diagnosing/reporting problems in bzr\n")
253
221
bzr_log_file.write("you can delete or truncate this file, or include sections in\n")
254
222
bzr_log_file.write("bug reports to https://bugs.launchpad.net/bzr/+filebug\n\n")
256
223
return bzr_log_file
258
except EnvironmentError, e:
259
# If we are failing to open the log, then most likely logging has not
260
# been set up yet. So we just write to stderr rather than using
261
# 'warning()'. If we using warning(), users get the unhelpful 'no
262
# handlers registered for "bzr"' when something goes wrong on the
263
# server. (bug #503886)
264
sys.stderr.write("failed to open trace file: %s\n" % (e,))
225
warning("failed to open trace file: %s" % (e))
265
226
# TODO: What should happen if we fail to open the trace file? Maybe the
266
227
# objects should be pointed at /dev/null or the equivalent? Currently
267
228
# returns None which will cause failures later.
271
231
def enable_default_logging():
272
232
"""Configure default logging: messages to stderr and debug to .bzr.log
274
234
This should only be called once per process.
276
236
Non-command-line programs embedding bzrlib do not need to call this. They
277
237
can instead either pass a file to _push_log_file, or act directly on
278
238
logging.getLogger("bzr").
280
240
Output can be redirected away by calling _push_log_file.
282
:return: A memento from push_log_file for restoring the log state.
284
start_time = osutils.format_local_date(_bzr_log_start_time,
242
# create encoded wrapper around stderr
286
243
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,
244
push_log_file(bzr_log_file,
290
245
r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s',
291
246
r'%Y-%m-%d %H:%M:%S')
292
247
# after hooking output into bzr_log, we also need to attach a stderr
293
248
# handler, writing only at level info and with encoding
294
stderr_handler = EncodedStreamHandler(sys.stderr,
295
osutils.get_terminal_encoding(), 'replace', level=logging.INFO)
249
writer_factory = codecs.getwriter(osutils.get_terminal_encoding())
250
encoded_stderr = writer_factory(sys.stderr, errors='replace')
251
stderr_handler = logging.StreamHandler(encoded_stderr)
252
stderr_handler.setLevel(logging.INFO)
296
253
logging.getLogger('bzr').addHandler(stderr_handler)
300
256
def push_log_file(to_file, log_format=None, date_format=None):
335
292
def pop_log_file((magic, old_handlers, new_handler, old_trace_file, new_trace_file)):
336
293
"""Undo changes to logging/tracing done by _push_log_file.
338
This flushes, but does not close the trace file (so that anything that was
295
This flushes, but does not close the trace file.
341
297
Takes the memento returned from _push_log_file."""
298
assert magic == 'log_memento'
342
299
global _trace_file
343
300
_trace_file = old_trace_file
344
301
bzr_logger = logging.getLogger('bzr')
345
302
bzr_logger.removeHandler(new_handler)
346
# must be closed, otherwise logging will try to close it at exit, and the
303
# must be closed, otherwise logging will try to close it atexit, and the
347
304
# file will likely already be closed underneath.
348
305
new_handler.close()
349
306
bzr_logger.handlers = old_handlers
350
if new_trace_file is not None:
351
new_trace_file.flush()
307
new_trace_file.flush()
310
@symbol_versioning.deprecated_function(symbol_versioning.one_two)
311
def enable_test_log(to_file):
312
"""Redirect logging to a temporary file for a test
314
:returns: an opaque reference that should be passed to disable_test_log
315
after the test completes.
317
return push_log_file(to_file)
320
@symbol_versioning.deprecated_function(symbol_versioning.one_two)
321
def disable_test_log(memento):
322
return pop_log_file(memento)
354
325
def log_exception_quietly():
355
326
"""Log the last exception to the trace file only.
357
Used for exceptions that occur internally and that may be
358
interesting to developers but not to users. For example,
328
Used for exceptions that occur internally and that may be
329
interesting to developers but not to users. For example,
359
330
errors loading plugins.
361
332
mutter(traceback.format_exc())
405
376
return _verbosity_level > 0
408
def debug_memory(message='', short=True):
409
"""Write out a memory dump."""
410
if sys.platform == 'win32':
411
from bzrlib import win32utils
412
win32utils.debug_memory_win32api(message=message, short=short)
414
_debug_memory_proc(message=message, short=short)
417
_short_fields = ('VmPeak', 'VmSize', 'VmRSS')
419
def _debug_memory_proc(message='', short=True):
421
status_file = file('/proc/%s/status' % os.getpid(), 'rb')
425
status = status_file.read()
430
for line in status.splitlines():
434
for field in _short_fields:
435
if line.startswith(field):
439
def _dump_memory_usage(err_file):
442
fd, name = tempfile.mkstemp(prefix="bzr_memdump", suffix=".json")
443
dump_file = os.fdopen(fd, 'w')
444
from meliae import scanner
445
scanner.dump_gc_objects(dump_file)
446
err_file.write("Memory dumped to %s\n" % name)
448
err_file.write("Dumping memory requires meliae module.\n")
449
log_exception_quietly()
451
err_file.write("Exception while dumping memory.\n")
452
log_exception_quietly()
454
if dump_file is not None:
460
def _qualified_exception_name(eclass, unqualified_bzrlib_errors=False):
461
"""Give name of error class including module for non-builtin exceptions
463
If `unqualified_bzrlib_errors` is True, errors specific to bzrlib will
464
also omit the module prefix.
379
@symbol_versioning.deprecated_function(symbol_versioning.one_two)
380
def disable_default_logging():
381
"""Turn off default log handlers.
383
Don't call this method, use _push_log_file and _pop_log_file instead.
466
class_name = eclass.__name__
467
module_name = eclass.__module__
468
if module_name in ("exceptions", "__main__") or (
469
unqualified_bzrlib_errors and module_name == "bzrlib.errors"):
471
return "%s.%s" % (module_name, class_name)
474
388
def report_exception(exc_info, err_file):
479
393
:return: The appropriate exit code for this error.
395
exc_type, exc_object, exc_tb = exc_info
481
396
# Log the full traceback to ~/.bzr.log
482
397
log_exception_quietly()
483
if 'error' in debug.debug_flags:
484
print_exception(exc_info, err_file)
398
if (isinstance(exc_object, IOError)
399
and getattr(exc_object, 'errno', None) == errno.EPIPE):
400
err_file.write("bzr: broken pipe\n")
485
401
return errors.EXIT_ERROR
486
exc_type, exc_object, exc_tb = exc_info
487
if isinstance(exc_object, KeyboardInterrupt):
402
elif isinstance(exc_object, KeyboardInterrupt):
488
403
err_file.write("bzr: interrupted\n")
489
404
return errors.EXIT_ERROR
490
elif isinstance(exc_object, MemoryError):
491
err_file.write("bzr: out of memory\n")
492
if 'mem_dump' in debug.debug_flags:
493
_dump_memory_usage(err_file)
495
err_file.write("Use -Dmem_dump to dump memory to a file.\n")
496
return errors.EXIT_ERROR
497
elif isinstance(exc_object, ImportError) \
498
and str(exc_object).startswith("No module named "):
499
report_user_error(exc_info, err_file,
500
'You may need to install this Python library separately.')
501
return errors.EXIT_ERROR
502
405
elif not getattr(exc_object, 'internal_error', True):
503
406
report_user_error(exc_info, err_file)
504
407
return errors.EXIT_ERROR
505
elif osutils.is_environment_error(exc_object):
506
if getattr(exc_object, 'errno', None) == errno.EPIPE:
507
err_file.write("bzr: broken pipe\n")
508
return errors.EXIT_ERROR
408
elif isinstance(exc_object, (OSError, IOError)):
509
409
# Might be nice to catch all of these and show them as something more
510
410
# specific, but there are too many cases at the moment.
511
411
report_user_error(exc_info, err_file)
515
415
return errors.EXIT_INTERNAL_ERROR
518
def print_exception(exc_info, err_file):
519
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))
523
traceback.print_exception(exc_type, exc_object, exc_tb, file=err_file)
526
418
# TODO: Should these be specially encoding the output?
527
def report_user_error(exc_info, err_file, advice=None):
419
def report_user_error(exc_info, err_file):
528
420
"""Report to err_file an error that's not an internal error.
530
422
These don't get a traceback unless -Derror was given.
532
:param exc_info: 3-tuple from sys.exc_info()
533
:param advice: Extra advice to the user to be printed following the
424
if 'error' in debug.debug_flags:
425
report_bug(exc_info, err_file)
536
427
err_file.write("bzr: ERROR: %s\n" % (exc_info[1],))
538
err_file.write("%s\n" % (advice,))
541
430
def report_bug(exc_info, err_file):
542
431
"""Report an exception that probably indicates a bug in bzr"""
543
from bzrlib.crash import report_bug
544
report_bug(exc_info, err_file)
547
def _flush_stdout_stderr():
548
# called from the bzrlib library finalizer returned by bzrlib.initialize()
552
except ValueError, e:
553
# On Windows, I get ValueError calling stdout.flush() on a closed
558
if e.errno in [errno.EINVAL, errno.EPIPE]:
565
# called from the bzrlib library finalizer returned by bzrlib.initialize()
571
class EncodedStreamHandler(logging.Handler):
572
"""Robustly write logging events to a stream using the specified encoding
574
Messages are expected to be formatted to unicode, but UTF-8 byte strings
575
are also accepted. An error during formatting or a str message in another
576
encoding will be quitely noted as an error in the Bazaar log file.
578
The stream is not closed so sys.stdout or sys.stderr may be passed.
581
def __init__(self, stream, encoding=None, errors='strict', level=0):
582
logging.Handler.__init__(self, level)
585
encoding = getattr(stream, "encoding", "ascii")
586
self.encoding = encoding
590
flush = getattr(self.stream, "flush", None)
591
if flush is not None:
594
def emit(self, record):
596
line = self.format(record)
597
if not isinstance(line, unicode):
598
line = line.decode("utf-8")
599
self.stream.write(line.encode(self.encoding, self.errors) + "\n")
601
log_exception_quietly()
602
# Try saving the details that would have been logged in some form
603
msg = args = "<Unformattable>"
605
msg = repr(record.msg).encode("ascii")
606
args = repr(record.args).encode("ascii")
609
# Using mutter() bypasses the logging module and writes directly
610
# to the file so there's no danger of getting into a loop here.
611
mutter("Logging record unformattable: %s %% %s", msg, args)
614
class Config(object):
615
"""Configuration of message tracing in bzrlib.
617
This implements the context manager protocol and should manage any global
618
variables still used. The default config used is DefaultConfig, but
619
embedded uses of bzrlib may wish to use a custom manager.
623
return self # This is bound to the 'as' clause in a with statement.
625
def __exit__(self, exc_type, exc_val, exc_tb):
626
return False # propogate exceptions.
629
class DefaultConfig(Config):
630
"""A default configuration for tracing of messages in bzrlib.
632
This implements the context manager protocol.
636
self._original_filename = _bzr_log_filename
637
self._original_state = enable_default_logging()
638
return self # This is bound to the 'as' clause in a with statement.
640
def __exit__(self, exc_type, exc_val, exc_tb):
641
pop_log_file(self._original_state)
642
global _bzr_log_filename
643
_bzr_log_filename = self._original_filename
644
return False # propogate exceptions.
432
exc_type, exc_object, exc_tb = exc_info
433
err_file.write("bzr: ERROR: %s.%s: %s\n" % (
434
exc_type.__module__, exc_type.__name__, exc_object))
436
traceback.print_exception(exc_type, exc_object, exc_tb, file=err_file)
438
err_file.write('bzr %s on python %s (%s)\n' % \
440
'.'.join(map(str, sys.version_info)),
442
err_file.write('arguments: %r\n' % sys.argv)
444
'encoding: %r, fsenc: %r, lang: %r\n' % (
445
osutils.get_user_encoding(), sys.getfilesystemencoding(),
446
os.environ.get('LANG')))
447
err_file.write("plugins:\n")
448
for name, a_plugin in sorted(plugin.plugins().items()):
449
err_file.write(" %-20s %s [%s]\n" %
450
(name, a_plugin.path(), a_plugin.__version__))
453
*** Bazaar has encountered an internal error.
454
Please report a bug at https://bugs.launchpad.net/bzr/+filebug
455
including this traceback, and a description of what you
456
were doing when the error occurred.
added
removed
bzrlib/trace.py
