48
49
# FIXME: Unfortunately it turns out that python's logging module
49
50
# is quite expensive, even when the message is not printed by any handlers.
50
51
# We should perhaps change back to just simply doing it here.
52
# On the other hand, as of 1.2 we generally only call the mutter() statement
53
# if (according to debug_flags) we actually intend to write it. So the
54
# increased cost of logging.py is not so bad, and we could standardize on
63
57
from bzrlib.lazy_import import lazy_import
64
58
lazy_import(globals(), """
65
61
from cStringIO import StringIO
73
from bzrlib.symbol_versioning import (
65
from bzrlib.symbol_versioning import (deprecated_function,
78
69
lazy_import(globals(), """
70
from bzrlib import debug
90
# global verbosity for bzrlib; controls the log level for stderr; 0=normal; <0
91
# is quiet; >0 is verbose.
94
# File-like object where mutter/debug output is currently sent. Can be
95
# changed by _push_log_file etc. This is directly manipulated by some
96
# external code; maybe there should be functions to do that more precisely
97
# than push/pop_log_file.
74
_stderr_handler = None
100
# Absolute path for ~/.bzr.log. Not changed even if the log/trace output is
101
# redirected elsewhere. Used to show the location in --version.
102
_bzr_log_filename = None
104
# The time the first message was written to the trace file, so that we can
105
# show relative times since startup.
106
_bzr_log_start_time = bzrlib._start_time
109
# held in a global for quick reference
82
# configure convenient aliases for output routines
110
84
_bzr_logger = logging.getLogger('bzr')
113
86
def note(*args, **kwargs):
114
"""Output a note to the user.
116
Takes the same parameters as logging.info.
120
87
# FIXME note always emits utf-8, regardless of the terminal encoding
122
# FIXME: clearing the ui and then going through the abstract logging
123
# framework is whack; we should probably have a logging Handler that
124
# deals with terminal output if needed.
126
89
bzrlib.ui.ui_factory.clear_term()
127
90
_bzr_logger.info(*args, **kwargs)
130
92
def warning(*args, **kwargs):
132
94
bzrlib.ui.ui_factory.clear_term()
133
95
_bzr_logger.warning(*args, **kwargs)
136
@deprecated_function(deprecated_in((2, 1, 0)))
137
def info(*args, **kwargs):
138
"""Deprecated: use trace.note instead."""
139
note(*args, **kwargs)
142
@deprecated_function(deprecated_in((2, 1, 0)))
143
def log_error(*args, **kwargs):
144
"""Deprecated: use bzrlib.trace.show_error instead"""
145
_bzr_logger.error(*args, **kwargs)
148
@deprecated_function(deprecated_in((2, 1, 0)))
149
def error(*args, **kwargs):
150
"""Deprecated: use bzrlib.trace.show_error instead"""
151
_bzr_logger.error(*args, **kwargs)
154
def show_error(*args, **kwargs):
155
"""Show an error message to the user.
157
Don't use this for exceptions, use report_exception instead.
159
_bzr_logger.error(*args, **kwargs)
98
log_error = _bzr_logger.error
99
error = _bzr_logger.error
162
102
def mutter(fmt, *args):
163
103
if _trace_file is None:
165
# XXX: Don't check this every time; instead anyone who closes the file
166
# ought to deregister it. We can tolerate None.
167
105
if (getattr(_trace_file, 'closed', None) is not None) and _trace_file.closed:
215
133
if size <= 4 << 20:
217
135
old_fname = trace_fname + '.old'
218
osutils.rename(trace_fname, old_fname)
136
from osutils import rename
137
rename(trace_fname, old_fname)
223
def _get_bzr_log_filename():
224
bzr_log = os.environ.get('BZR_LOG')
227
home = os.environ.get('BZR_HOME')
229
if sys.platform == 'win32':
230
from bzrlib import win32utils
231
home = win32utils.get_home_location()
233
home = os.path.expanduser('~')
234
return os.path.join(home, '.bzr.log')
238
"""Open the .bzr.log trace file.
240
If the log is more than a particular length, the old file is renamed to
241
.bzr.log.old and a new file is started. Otherwise, we append to the
244
This sets the global _bzr_log_filename.
246
global _bzr_log_filename
248
def _open_or_create_log_file(filename):
249
"""Open existing log file, or create with ownership and permissions
251
It inherits the ownership and permissions (masked by umask) from
252
the containing directory to cope better with being run under sudo
253
with $HOME still set to the user's homedir.
255
flags = os.O_WRONLY | os.O_APPEND | osutils.O_TEXT
258
fd = os.open(filename, flags)
261
if e.errno != errno.ENOENT:
264
fd = os.open(filename, flags | os.O_CREAT | os.O_EXCL, 0666)
266
if e.errno != errno.EEXIST:
269
osutils.copy_ownership_from_path(filename)
271
return os.fdopen(fd, 'at', 0) # unbuffered
274
_bzr_log_filename = _get_bzr_log_filename()
275
_rollover_trace_maybe(_bzr_log_filename)
142
def open_tracefile(tracefilename='~/.bzr.log'):
143
# Messages are always written to here, so that we have some
144
# information if something goes wrong. In a future version this
145
# file will be removed on successful completion.
146
global _file_handler, _bzr_log_file
149
trace_fname = os.path.join(os.path.expanduser(tracefilename))
150
_rollover_trace_maybe(trace_fname)
277
bzr_log_file = _open_or_create_log_file(_bzr_log_filename)
278
bzr_log_file.write('\n')
279
if bzr_log_file.tell() <= 2:
280
bzr_log_file.write("this is a debug log for diagnosing/reporting problems in bzr\n")
281
bzr_log_file.write("you can delete or truncate this file, or include sections in\n")
282
bzr_log_file.write("bug reports to https://bugs.launchpad.net/bzr/+filebug\n\n")
286
except EnvironmentError, e:
287
# If we are failing to open the log, then most likely logging has not
288
# been set up yet. So we just write to stderr rather than using
289
# 'warning()'. If we using warning(), users get the unhelpful 'no
290
# handlers registered for "bzr"' when something goes wrong on the
291
# server. (bug #503886)
292
sys.stderr.write("failed to open trace file: %s\n" % (e,))
293
# TODO: What should happen if we fail to open the trace file? Maybe the
294
# objects should be pointed at /dev/null or the equivalent? Currently
295
# returns None which will cause failures later.
299
def enable_default_logging():
300
"""Configure default logging: messages to stderr and debug to .bzr.log
302
This should only be called once per process.
304
Non-command-line programs embedding bzrlib do not need to call this. They
305
can instead either pass a file to _push_log_file, or act directly on
306
logging.getLogger("bzr").
308
Output can be redirected away by calling _push_log_file.
310
# Do this before we open the log file, so we prevent
311
# get_terminal_encoding() from mutter()ing multiple times
312
term_encoding = osutils.get_terminal_encoding()
313
start_time = osutils.format_local_date(_bzr_log_start_time,
315
# create encoded wrapper around stderr
316
bzr_log_file = _open_bzr_log()
317
if bzr_log_file is not None:
318
bzr_log_file.write(start_time.encode('utf-8') + '\n')
319
push_log_file(bzr_log_file,
320
r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s',
321
r'%Y-%m-%d %H:%M:%S')
322
# after hooking output into bzr_log, we also need to attach a stderr
323
# handler, writing only at level info and with encoding
324
writer_factory = codecs.getwriter(term_encoding)
325
encoded_stderr = writer_factory(sys.stderr, errors='replace')
326
stderr_handler = logging.StreamHandler(encoded_stderr)
327
stderr_handler.setLevel(logging.INFO)
328
logging.getLogger('bzr').addHandler(stderr_handler)
331
def push_log_file(to_file, log_format=None, date_format=None):
332
"""Intercept log and trace messages and send them to a file.
334
:param to_file: A file-like object to which messages will be sent.
336
:returns: A memento that should be passed to _pop_log_file to restore the
337
previously active logging.
341
new_handler = logging.StreamHandler(to_file)
342
new_handler.setLevel(logging.DEBUG)
343
if log_format is None:
344
log_format = '%(levelname)8s %(message)s'
345
new_handler.setFormatter(logging.Formatter(log_format, date_format))
346
# save and remove any existing log handlers
347
bzr_logger = logging.getLogger('bzr')
348
old_handlers = bzr_logger.handlers[:]
349
del bzr_logger.handlers[:]
350
# set that as the default logger
351
bzr_logger.addHandler(new_handler)
352
bzr_logger.setLevel(logging.DEBUG)
353
# TODO: check if any changes are needed to the root logger
355
# TODO: also probably need to save and restore the level on bzr_logger.
356
# but maybe we can avoid setting the logger level altogether, and just set
357
# the level on the handler?
359
# save the old trace file
360
old_trace_file = _trace_file
361
# send traces to the new one
362
_trace_file = to_file
363
result = new_handler, _trace_file
364
return ('log_memento', old_handlers, new_handler, old_trace_file, to_file)
367
def pop_log_file((magic, old_handlers, new_handler, old_trace_file, new_trace_file)):
368
"""Undo changes to logging/tracing done by _push_log_file.
370
This flushes, but does not close the trace file.
372
Takes the memento returned from _push_log_file."""
374
_trace_file = old_trace_file
375
bzr_logger = logging.getLogger('bzr')
376
bzr_logger.removeHandler(new_handler)
377
# must be closed, otherwise logging will try to close it atexit, and the
378
# file will likely already be closed underneath.
380
bzr_logger.handlers = old_handlers
381
new_trace_file.flush()
153
#tf = codecs.open(trace_fname, 'at', 'utf8', buffering=LINE_BUFFERED)
154
tf = open(trace_fname, 'at', LINE_BUFFERED)
157
tf.write("\nthis is a debug log for diagnosing/reporting problems in bzr\n")
158
tf.write("you can delete or truncate this file, or include sections in\n")
159
tf.write("bug reports to bazaar-ng@lists.canonical.com\n\n")
160
_file_handler = logging.StreamHandler(tf)
161
fmt = r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s'
162
datefmt = r'%a %H:%M:%S'
163
_file_handler.setFormatter(logging.Formatter(fmt, datefmt))
164
_file_handler.setLevel(logging.DEBUG)
165
logging.getLogger('').addHandler(_file_handler)
167
warning("failed to open trace file: %s" % (e))
170
@deprecated_function(zero_nine)
171
def log_exception(msg=None):
172
"""Log the last exception to stderr and the trace file.
174
The exception string representation is used as the error
175
summary, unless msg is given.
179
log_exception_quietly()
384
182
def log_exception_quietly():
385
183
"""Log the last exception to the trace file only.
387
Used for exceptions that occur internally and that may be
388
interesting to developers but not to users. For example,
185
Used for exceptions that occur internally and that may be
186
interesting to developers but not to users. For example,
389
187
errors loading plugins.
391
190
mutter(traceback.format_exc())
394
def set_verbosity_level(level):
395
"""Set the verbosity level.
397
:param level: -ve for quiet, 0 for normal, +ve for verbose
399
global _verbosity_level
400
_verbosity_level = level
401
_update_logging_level(level < 0)
402
ui.ui_factory.be_quiet(level < 0)
405
def get_verbosity_level():
406
"""Get the verbosity level.
408
See set_verbosity_level() for values.
410
return _verbosity_level
193
def enable_default_logging():
194
"""Configure default logging to stderr and .bzr.log"""
195
# FIXME: if this is run twice, things get confused
196
global _stderr_handler, _file_handler, _trace_file, _bzr_log_file
197
_stderr_handler = logging.StreamHandler()
198
logging.getLogger('').addHandler(_stderr_handler)
199
_stderr_handler.setLevel(logging.INFO)
200
if not _file_handler:
202
_trace_file = _bzr_log_file
204
_file_handler.setLevel(logging.DEBUG)
205
_bzr_logger.setLevel(logging.DEBUG)
413
208
def be_quiet(quiet=True):
415
set_verbosity_level(-1)
417
set_verbosity_level(0)
420
def _update_logging_level(quiet=True):
421
"""Hide INFO messages if quiet."""
423
_bzr_logger.setLevel(logging.WARNING)
425
_bzr_logger.setLevel(logging.INFO)
209
global _stderr_handler, _stderr_quiet
211
_stderr_quiet = quiet
213
_stderr_handler.setLevel(logging.WARNING)
215
_stderr_handler.setLevel(logging.INFO)
429
"""Is the verbosity level negative?"""
430
return _verbosity_level < 0
434
"""Is the verbosity level positive?"""
435
return _verbosity_level > 0
438
def debug_memory(message='', short=True):
439
"""Write out a memory dump."""
440
if sys.platform == 'win32':
441
from bzrlib import win32utils
442
win32utils.debug_memory_win32api(message=message, short=short)
444
_debug_memory_proc(message=message, short=short)
447
_short_fields = ('VmPeak', 'VmSize', 'VmRSS')
449
def _debug_memory_proc(message='', short=True):
451
status_file = file('/proc/%s/status' % os.getpid(), 'rb')
455
status = status_file.read()
460
for line in status.splitlines():
464
for field in _short_fields:
465
if line.startswith(field):
223
def disable_default_logging():
224
"""Turn off default log handlers.
226
This is intended to be used by the test framework, which doesn't
227
want leakage from the code-under-test into the main logs.
230
l = logging.getLogger('')
231
l.removeHandler(_stderr_handler)
233
l.removeHandler(_file_handler)
237
def enable_test_log(to_file):
238
"""Redirect logging to a temporary file for a test
240
returns an opaque reference that should be passed to disable_test_log
241
after the test completes.
243
disable_default_logging()
246
hdlr = logging.StreamHandler(to_file)
247
hdlr.setLevel(logging.DEBUG)
248
hdlr.setFormatter(logging.Formatter('%(levelname)8s %(message)s'))
249
_bzr_logger.addHandler(hdlr)
250
_bzr_logger.setLevel(logging.DEBUG)
251
result = hdlr, _trace_file, _trace_depth
252
_trace_file = to_file
257
def disable_test_log((test_log_hdlr, old_trace_file, old_trace_depth)):
258
_bzr_logger.removeHandler(test_log_hdlr)
259
test_log_hdlr.close()
262
_trace_file = old_trace_file
263
_trace_depth = old_trace_depth
265
enable_default_logging()
470
268
def report_exception(exc_info, err_file):
471
"""Report an exception to err_file (typically stderr) and to .bzr.log.
473
This will show either a full traceback or a short message as appropriate.
475
:return: The appropriate exit code for this error.
269
exc_type, exc_object, exc_tb = exc_info
477
270
# Log the full traceback to ~/.bzr.log
478
271
log_exception_quietly()
479
if 'error' in debug.debug_flags:
480
print_exception(exc_info, err_file)
481
return errors.EXIT_ERROR
482
exc_type, exc_object, exc_tb = exc_info
483
272
if (isinstance(exc_object, IOError)
484
273
and getattr(exc_object, 'errno', None) == errno.EPIPE):
485
err_file.write("bzr: broken pipe\n")
486
return errors.EXIT_ERROR
274
print >>err_file, "bzr: broken pipe"
487
275
elif isinstance(exc_object, KeyboardInterrupt):
488
err_file.write("bzr: interrupted\n")
489
return errors.EXIT_ERROR
490
elif isinstance(exc_object, MemoryError):
491
err_file.write("bzr: out of memory\n")
492
return errors.EXIT_ERROR
493
elif isinstance(exc_object, ImportError) \
494
and str(exc_object).startswith("No module named "):
495
report_user_error(exc_info, err_file,
496
'You may need to install this Python library separately.')
497
return errors.EXIT_ERROR
276
print >>err_file, "bzr: interrupted"
498
277
elif not getattr(exc_object, 'internal_error', True):
499
278
report_user_error(exc_info, err_file)
500
return errors.EXIT_ERROR
501
279
elif isinstance(exc_object, (OSError, IOError)):
502
280
# Might be nice to catch all of these and show them as something more
503
281
# specific, but there are too many cases at the moment.
504
282
report_user_error(exc_info, err_file)
505
return errors.EXIT_ERROR
507
report_bug(exc_info, err_file)
508
return errors.EXIT_INTERNAL_ERROR
511
def print_exception(exc_info, err_file):
512
exc_type, exc_object, exc_tb = exc_info
513
err_file.write("bzr: ERROR: %s.%s: %s\n" % (
514
exc_type.__module__, exc_type.__name__, exc_object))
516
traceback.print_exception(exc_type, exc_object, exc_tb, file=err_file)
284
return report_bug(exc_info, err_file)
519
287
# TODO: Should these be specially encoding the output?
520
def report_user_error(exc_info, err_file, advice=None):
288
def report_user_error(exc_info, err_file):
521
289
"""Report to err_file an error that's not an internal error.
523
291
These don't get a traceback unless -Derror was given.
525
:param exc_info: 3-tuple from sys.exc_info()
526
:param advice: Extra advice to the user to be printed following the
529
err_file.write("bzr: ERROR: %s\n" % (exc_info[1],))
531
err_file.write("%s\n" % (advice,))
293
if 'error' in debug.debug_flags:
294
report_bug(exc_info, err_file)
296
print >>err_file, "bzr: ERROR:", str(exc_info[1])
534
299
def report_bug(exc_info, err_file):
535
300
"""Report an exception that probably indicates a bug in bzr"""
536
from bzrlib.crash import report_bug
537
report_bug(exc_info, err_file)
540
def _flush_stdout_stderr():
541
# installed into an atexit hook by bzrlib.initialize()
547
if e.errno in [errno.EINVAL, errno.EPIPE]:
554
# run from atexit hook
301
# local import because its only needed here, and this is not a loop.
303
# local import because the other functions do it too.
305
# local import due to circular dependency
309
# detect apport presence.
311
import problem_report
313
# not present, dont use it.
316
# policy disabled, or not present, use the old ui.
317
return _old_report_bug(exc_info, err_file)
319
exc_type, exc_object, exc_tb = exc_info
321
"bzr: ERROR: %s.%s: %s\n" % (
322
exc_type.__module__, exc_type.__name__, exc_object)
324
report = problem_report.ProblemReport()
325
report_file, report_filename = tempfile.mkstemp(
326
suffix='.txt', prefix='bzr-crash-', dir='/tmp')
327
python_report_file = os.fdopen(report_file, 'w')
329
report['CommandLine'] = ' '.join(sys.argv)
330
# assume we are packaged as bzr.
331
apport_utils.report_add_package_info(report, 'bzr')
332
report['BzrPlugins'] = ' '.join(bzrlib.plugin.all_plugins())
334
traceback.print_exception(exc_type, exc_object, exc_tb, file=tb_file)
335
report['Traceback'] = tb_file.getvalue()
336
apport_utils.report_add_os_info(report)
337
report.write(python_report_file)
338
# give the user a pretty output.
341
'This is an unexpected error within bzr and we would appreciate a bug report.\n'
343
'bzr has written a crash report file that will assist our debugging of this\n'
346
'This is a plain text file, whose contents you can check if you have privacy\n'
347
'concerns. We gather the package data about bzr, your command line, plugins\n'
348
'And the backtrace from within bzr. If you had a password in the URL you\n'
349
'provided to bzr, you should edit that file to remove the password.\n'
351
'** To file a bug for this please visit our bugtracker at the URL \n'
352
'"https://launchpad.net/products/bzr/+filebug" and report a bug describing\n'
353
'what you were attempting and attach the bzr-crash file mentioned above.\n'
354
'Alternatively you can email bazaar-ng@lists.canonical.com with the same\n'
355
'description and attach the bzr-crash file to the email.\n' %
359
python_report_file.close()
360
return report, report_filename
362
def _old_report_bug(exc_info, err_file):
363
"""Write a synopsis of an exception that is probably a bug to err_file."""
365
exc_type, exc_object, exc_tb = exc_info
366
print >>err_file, "bzr: ERROR: %s.%s: %s" % (
367
exc_type.__module__, exc_type.__name__, exc_object)
369
traceback.print_exception(exc_type, exc_object, exc_tb, file=err_file)
371
print >>err_file, 'bzr %s on python %s (%s)' % \
373
'.'.join(map(str, sys.version_info)),
375
print >>err_file, 'arguments: %r' % sys.argv
377
print >>err_file, "** please send this report to bazaar-ng@lists.ubuntu.com"