189
131
if size <= 4 << 20:
191
133
old_fname = trace_fname + '.old'
192
osutils.rename(trace_fname, old_fname)
134
from osutils import rename
135
rename(trace_fname, old_fname)
197
def _get_bzr_log_filename():
198
bzr_log = os.environ.get('BZR_LOG')
201
home = os.environ.get('BZR_HOME')
140
def open_tracefile(tracefilename=None):
141
# Messages are always written to here, so that we have some
142
# information if something goes wrong. In a future version this
143
# file will be removed on successful completion.
144
global _file_handler, _bzr_log_file
147
if tracefilename is None:
203
148
if sys.platform == 'win32':
204
149
from bzrlib import win32utils
205
150
home = win32utils.get_home_location()
207
152
home = os.path.expanduser('~')
208
return os.path.join(home, '.bzr.log')
212
"""Open the .bzr.log trace file.
214
If the log is more than a particular length, the old file is renamed to
215
.bzr.log.old and a new file is started. Otherwise, we append to the
218
This sets the global _bzr_log_filename.
220
global _bzr_log_filename
222
def _open_or_create_log_file(filename):
223
"""Open existing log file, or create with ownership and permissions
225
It inherits the ownership and permissions (masked by umask) from
226
the containing directory to cope better with being run under sudo
227
with $HOME still set to the user's homedir.
229
flags = os.O_WRONLY | os.O_APPEND | osutils.O_TEXT
232
fd = os.open(filename, flags)
235
if e.errno != errno.ENOENT:
238
fd = os.open(filename, flags | os.O_CREAT | os.O_EXCL, 0666)
240
if e.errno != errno.EEXIST:
243
osutils.copy_ownership_from_path(filename)
245
return os.fdopen(fd, 'at', 0) # unbuffered
248
_bzr_log_filename = _get_bzr_log_filename()
249
_rollover_trace_maybe(_bzr_log_filename)
153
tracefilename = os.path.join(home, '.bzr.log')
155
trace_fname = os.path.expanduser(tracefilename)
156
_rollover_trace_maybe(trace_fname)
251
bzr_log_file = _open_or_create_log_file(_bzr_log_filename)
252
bzr_log_file.write('\n')
253
if bzr_log_file.tell() <= 2:
254
bzr_log_file.write("this is a debug log for diagnosing/reporting problems in bzr\n")
255
bzr_log_file.write("you can delete or truncate this file, or include sections in\n")
256
bzr_log_file.write("bug reports to https://bugs.launchpad.net/bzr/+filebug\n\n")
260
except EnvironmentError, e:
261
# If we are failing to open the log, then most likely logging has not
262
# been set up yet. So we just write to stderr rather than using
263
# 'warning()'. If we using warning(), users get the unhelpful 'no
264
# handlers registered for "bzr"' when something goes wrong on the
265
# server. (bug #503886)
266
sys.stderr.write("failed to open trace file: %s\n" % (e,))
267
# TODO: What should happen if we fail to open the trace file? Maybe the
268
# objects should be pointed at /dev/null or the equivalent? Currently
269
# returns None which will cause failures later.
273
def enable_default_logging():
274
"""Configure default logging: messages to stderr and debug to .bzr.log
276
This should only be called once per process.
278
Non-command-line programs embedding bzrlib do not need to call this. They
279
can instead either pass a file to _push_log_file, or act directly on
280
logging.getLogger("bzr").
282
Output can be redirected away by calling _push_log_file.
284
:return: A memento from push_log_file for restoring the log state.
286
start_time = osutils.format_local_date(_bzr_log_start_time,
288
# create encoded wrapper around stderr
289
bzr_log_file = _open_bzr_log()
290
if bzr_log_file is not None:
291
bzr_log_file.write(start_time.encode('utf-8') + '\n')
292
memento = push_log_file(bzr_log_file,
293
r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s',
294
r'%Y-%m-%d %H:%M:%S')
295
# after hooking output into bzr_log, we also need to attach a stderr
296
# handler, writing only at level info and with encoding
297
term_encoding = osutils.get_terminal_encoding()
298
writer_factory = codecs.getwriter(term_encoding)
299
encoded_stderr = writer_factory(sys.stderr, errors='replace')
300
stderr_handler = logging.StreamHandler(encoded_stderr)
301
stderr_handler.setLevel(logging.INFO)
302
logging.getLogger('bzr').addHandler(stderr_handler)
306
def push_log_file(to_file, log_format=None, date_format=None):
307
"""Intercept log and trace messages and send them to a file.
309
:param to_file: A file-like object to which messages will be sent.
311
:returns: A memento that should be passed to _pop_log_file to restore the
312
previously active logging.
316
new_handler = logging.StreamHandler(to_file)
317
new_handler.setLevel(logging.DEBUG)
318
if log_format is None:
319
log_format = '%(levelname)8s %(message)s'
320
new_handler.setFormatter(logging.Formatter(log_format, date_format))
321
# save and remove any existing log handlers
322
bzr_logger = logging.getLogger('bzr')
323
old_handlers = bzr_logger.handlers[:]
324
del bzr_logger.handlers[:]
325
# set that as the default logger
326
bzr_logger.addHandler(new_handler)
327
bzr_logger.setLevel(logging.DEBUG)
328
# TODO: check if any changes are needed to the root logger
330
# TODO: also probably need to save and restore the level on bzr_logger.
331
# but maybe we can avoid setting the logger level altogether, and just set
332
# the level on the handler?
334
# save the old trace file
335
old_trace_file = _trace_file
336
# send traces to the new one
337
_trace_file = to_file
338
result = new_handler, _trace_file
339
return ('log_memento', old_handlers, new_handler, old_trace_file, to_file)
342
def pop_log_file((magic, old_handlers, new_handler, old_trace_file, new_trace_file)):
343
"""Undo changes to logging/tracing done by _push_log_file.
345
This flushes, but does not close the trace file (so that anything that was
348
Takes the memento returned from _push_log_file."""
350
_trace_file = old_trace_file
351
bzr_logger = logging.getLogger('bzr')
352
bzr_logger.removeHandler(new_handler)
353
# must be closed, otherwise logging will try to close it at exit, and the
354
# file will likely already be closed underneath.
356
bzr_logger.handlers = old_handlers
357
if new_trace_file is not None:
358
new_trace_file.flush()
159
#tf = codecs.open(trace_fname, 'at', 'utf8', buffering=LINE_BUFFERED)
160
tf = open(trace_fname, 'at', LINE_BUFFERED)
162
# tf.tell() on windows always return 0 until some writing done
165
tf.write("this is a debug log for diagnosing/reporting problems in bzr\n")
166
tf.write("you can delete or truncate this file, or include sections in\n")
167
tf.write("bug reports to bazaar@lists.canonical.com\n\n")
168
_file_handler = logging.StreamHandler(tf)
169
fmt = r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s'
170
datefmt = r'%a %H:%M:%S'
171
_file_handler.setFormatter(logging.Formatter(fmt, datefmt))
172
_file_handler.setLevel(logging.DEBUG)
173
logging.getLogger('').addHandler(_file_handler)
175
warning("failed to open trace file: %s" % (e))
178
@deprecated_function(zero_nine)
179
def log_exception(msg=None):
180
"""Log the last exception to stderr and the trace file.
182
The exception string representation is used as the error
183
summary, unless msg is given.
185
Please see log_exception_quietly() for the replacement API.
189
log_exception_quietly()
361
192
def log_exception_quietly():
362
193
"""Log the last exception to the trace file only.
364
Used for exceptions that occur internally and that may be
365
interesting to developers but not to users. For example,
195
Used for exceptions that occur internally and that may be
196
interesting to developers but not to users. For example,
366
197
errors loading plugins.
368
200
mutter(traceback.format_exc())
371
def set_verbosity_level(level):
372
"""Set the verbosity level.
374
:param level: -ve for quiet, 0 for normal, +ve for verbose
376
global _verbosity_level
377
_verbosity_level = level
378
_update_logging_level(level < 0)
379
ui.ui_factory.be_quiet(level < 0)
382
def get_verbosity_level():
383
"""Get the verbosity level.
385
See set_verbosity_level() for values.
387
return _verbosity_level
203
def enable_default_logging():
204
"""Configure default logging to stderr and .bzr.log"""
205
# FIXME: if this is run twice, things get confused
206
global _stderr_handler, _file_handler, _trace_file, _bzr_log_file
207
_stderr_handler = logging.StreamHandler()
208
logging.getLogger('').addHandler(_stderr_handler)
209
_stderr_handler.setLevel(logging.INFO)
210
if not _file_handler:
212
_trace_file = _bzr_log_file
214
_file_handler.setLevel(logging.DEBUG)
215
_bzr_logger.setLevel(logging.DEBUG)
390
218
def be_quiet(quiet=True):
392
set_verbosity_level(-1)
394
set_verbosity_level(0)
397
def _update_logging_level(quiet=True):
398
"""Hide INFO messages if quiet."""
400
_bzr_logger.setLevel(logging.WARNING)
402
_bzr_logger.setLevel(logging.INFO)
219
global _stderr_handler, _stderr_quiet
221
_stderr_quiet = quiet
223
_stderr_handler.setLevel(logging.WARNING)
225
_stderr_handler.setLevel(logging.INFO)
406
"""Is the verbosity level negative?"""
407
return _verbosity_level < 0
411
"""Is the verbosity level positive?"""
412
return _verbosity_level > 0
415
def debug_memory(message='', short=True):
416
"""Write out a memory dump."""
417
if sys.platform == 'win32':
418
from bzrlib import win32utils
419
win32utils.debug_memory_win32api(message=message, short=short)
421
_debug_memory_proc(message=message, short=short)
424
_short_fields = ('VmPeak', 'VmSize', 'VmRSS')
426
def _debug_memory_proc(message='', short=True):
428
status_file = file('/proc/%s/status' % os.getpid(), 'rb')
432
status = status_file.read()
437
for line in status.splitlines():
441
for field in _short_fields:
442
if line.startswith(field):
446
def _dump_memory_usage(err_file):
449
fd, name = tempfile.mkstemp(prefix="bzr_memdump", suffix=".json")
450
dump_file = os.fdopen(fd, 'w')
451
from meliae import scanner
452
scanner.dump_gc_objects(dump_file)
453
err_file.write("Memory dumped to %s\n" % name)
455
err_file.write("Dumping memory requires meliae module.\n")
456
log_exception_quietly()
458
err_file.write("Exception while dumping memory.\n")
459
log_exception_quietly()
461
if dump_file is not None:
467
def _qualified_exception_name(eclass, unqualified_bzrlib_errors=False):
468
"""Give name of error class including module for non-builtin exceptions
470
If `unqualified_bzrlib_errors` is True, errors specific to bzrlib will
471
also omit the module prefix.
473
class_name = eclass.__name__
474
module_name = eclass.__module__
475
if module_name in ("exceptions", "__main__") or (
476
unqualified_bzrlib_errors and module_name == "bzrlib.errors"):
478
return "%s.%s" % (module_name, class_name)
233
def disable_default_logging():
234
"""Turn off default log handlers.
236
This is intended to be used by the test framework, which doesn't
237
want leakage from the code-under-test into the main logs.
240
l = logging.getLogger('')
241
l.removeHandler(_stderr_handler)
243
l.removeHandler(_file_handler)
247
def enable_test_log(to_file):
248
"""Redirect logging to a temporary file for a test
250
returns an opaque reference that should be passed to disable_test_log
251
after the test completes.
253
disable_default_logging()
256
hdlr = logging.StreamHandler(to_file)
257
hdlr.setLevel(logging.DEBUG)
258
hdlr.setFormatter(logging.Formatter('%(levelname)8s %(message)s'))
259
_bzr_logger.addHandler(hdlr)
260
_bzr_logger.setLevel(logging.DEBUG)
261
result = hdlr, _trace_file, _trace_depth
262
_trace_file = to_file
267
def disable_test_log((test_log_hdlr, old_trace_file, old_trace_depth)):
268
_bzr_logger.removeHandler(test_log_hdlr)
269
test_log_hdlr.close()
272
_trace_file = old_trace_file
273
_trace_depth = old_trace_depth
275
enable_default_logging()
481
278
def report_exception(exc_info, err_file):
482
"""Report an exception to err_file (typically stderr) and to .bzr.log.
484
This will show either a full traceback or a short message as appropriate.
486
:return: The appropriate exit code for this error.
279
exc_type, exc_object, exc_tb = exc_info
488
280
# Log the full traceback to ~/.bzr.log
489
281
log_exception_quietly()
490
if 'error' in debug.debug_flags:
491
print_exception(exc_info, err_file)
492
return errors.EXIT_ERROR
493
exc_type, exc_object, exc_tb = exc_info
494
282
if (isinstance(exc_object, IOError)
495
283
and getattr(exc_object, 'errno', None) == errno.EPIPE):
496
err_file.write("bzr: broken pipe\n")
497
return errors.EXIT_ERROR
284
print >>err_file, "bzr: broken pipe"
498
285
elif isinstance(exc_object, KeyboardInterrupt):
499
err_file.write("bzr: interrupted\n")
500
return errors.EXIT_ERROR
501
elif isinstance(exc_object, MemoryError):
502
err_file.write("bzr: out of memory\n")
503
if 'mem_dump' in debug.debug_flags:
504
_dump_memory_usage(err_file)
506
err_file.write("Use -Dmem_dump to dump memory to a file.\n")
507
return errors.EXIT_ERROR
508
elif isinstance(exc_object, ImportError) \
509
and str(exc_object).startswith("No module named "):
510
report_user_error(exc_info, err_file,
511
'You may need to install this Python library separately.')
512
return errors.EXIT_ERROR
286
print >>err_file, "bzr: interrupted"
513
287
elif not getattr(exc_object, 'internal_error', True):
514
288
report_user_error(exc_info, err_file)
515
return errors.EXIT_ERROR
516
elif isinstance(exc_object, (OSError, IOError)) or (
517
# GZ 2010-05-20: Like (exc_type is pywintypes.error) but avoid import
518
exc_type.__name__ == "error" and exc_type.__module__ == "pywintypes"):
289
elif isinstance(exc_object, (OSError, IOError)):
519
290
# Might be nice to catch all of these and show them as something more
520
291
# specific, but there are too many cases at the moment.
521
292
report_user_error(exc_info, err_file)
522
return errors.EXIT_ERROR
524
294
report_bug(exc_info, err_file)
525
return errors.EXIT_INTERNAL_ERROR
528
def print_exception(exc_info, err_file):
529
exc_type, exc_object, exc_tb = exc_info
530
err_file.write("bzr: ERROR: %s.%s: %s\n" % (
531
exc_type.__module__, exc_type.__name__, exc_object))
533
traceback.print_exception(exc_type, exc_object, exc_tb, file=err_file)
536
297
# TODO: Should these be specially encoding the output?
537
def report_user_error(exc_info, err_file, advice=None):
298
def report_user_error(exc_info, err_file):
538
299
"""Report to err_file an error that's not an internal error.
540
301
These don't get a traceback unless -Derror was given.
542
:param exc_info: 3-tuple from sys.exc_info()
543
:param advice: Extra advice to the user to be printed following the
546
err_file.write("bzr: ERROR: %s\n" % (exc_info[1],))
548
err_file.write("%s\n" % (advice,))
303
if 'error' in debug.debug_flags:
304
report_bug(exc_info, err_file)
306
print >>err_file, "bzr: ERROR:", str(exc_info[1])
551
309
def report_bug(exc_info, err_file):
552
310
"""Report an exception that probably indicates a bug in bzr"""
553
from bzrlib.crash import report_bug
554
report_bug(exc_info, err_file)
557
def _flush_stdout_stderr():
558
# called from the bzrlib library finalizer returned by bzrlib.initialize()
564
if e.errno in [errno.EINVAL, errno.EPIPE]:
571
# called from the bzrlib library finalizer returned by bzrlib.initialize()
577
class Config(object):
578
"""Configuration of message tracing in bzrlib.
580
This implements the context manager protocol and should manage any global
581
variables still used. The default config used is DefaultConfig, but
582
embedded uses of bzrlib may wish to use a custom manager.
586
return self # This is bound to the 'as' clause in a with statement.
588
def __exit__(self, exc_type, exc_val, exc_tb):
589
return False # propogate exceptions.
592
class DefaultConfig(Config):
593
"""A default configuration for tracing of messages in bzrlib.
595
This implements the context manager protocol.
599
self._original_filename = _bzr_log_filename
600
self._original_state = enable_default_logging()
601
return self # This is bound to the 'as' clause in a with statement.
603
def __exit__(self, exc_type, exc_val, exc_tb):
604
pop_log_file(self._original_state)
605
global _bzr_log_filename
606
_bzr_log_filename = self._original_filename
607
return False # propogate exceptions.
312
exc_type, exc_object, exc_tb = exc_info
313
print >>err_file, "bzr: ERROR: %s.%s: %s" % (
314
exc_type.__module__, exc_type.__name__, exc_object)
316
traceback.print_exception(exc_type, exc_object, exc_tb, file=err_file)
318
print >>err_file, 'bzr %s on python %s (%s)' % \
320
'.'.join(map(str, sys.version_info)),
322
print >>err_file, 'arguments: %r' % sys.argv
324
print >>err_file, "** please send this report to bazaar@lists.ubuntu.com"