146
196
if size <= 4 << 20:
148
198
old_fname = trace_fname + '.old'
149
from osutils import rename
150
rename(trace_fname, old_fname)
199
osutils.rename(trace_fname, old_fname)
155
def open_tracefile(tracefilename=None):
156
# Messages are always written to here, so that we have some
157
# information if something goes wrong. In a future version this
158
# file will be removed on successful completion.
159
global _file_handler, _bzr_log_file, _bzr_log_filename
162
if tracefilename is None:
204
def _get_bzr_log_filename():
205
bzr_log = os.environ.get('BZR_LOG')
208
home = os.environ.get('BZR_HOME')
163
210
if sys.platform == 'win32':
164
211
from bzrlib import win32utils
165
212
home = win32utils.get_home_location()
167
214
home = os.path.expanduser('~')
168
_bzr_log_filename = os.path.join(home, '.bzr.log')
170
_bzr_log_filename = tracefilename
172
_bzr_log_filename = os.path.expanduser(_bzr_log_filename)
215
return os.path.join(home, '.bzr.log')
219
"""Open the .bzr.log trace file.
221
If the log is more than a particular length, the old file is renamed to
222
.bzr.log.old and a new file is started. Otherwise, we append to the
225
This sets the global _bzr_log_filename.
227
global _bzr_log_filename
228
_bzr_log_filename = _get_bzr_log_filename()
173
229
_rollover_trace_maybe(_bzr_log_filename)
176
#tf = codecs.open(trace_fname, 'at', 'utf8', buffering=LINE_BUFFERED)
177
tf = open(_bzr_log_filename, 'at', LINE_BUFFERED)
179
# tf.tell() on windows always return 0 until some writing done
182
tf.write("this is a debug log for diagnosing/reporting problems in bzr\n")
183
tf.write("you can delete or truncate this file, or include sections in\n")
184
tf.write("bug reports to bazaar@lists.canonical.com\n\n")
185
_file_handler = logging.StreamHandler(tf)
186
fmt = r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s'
187
datefmt = r'%a %H:%M:%S'
188
_file_handler.setFormatter(logging.Formatter(fmt, datefmt))
189
_file_handler.setLevel(logging.DEBUG)
190
logging.getLogger('').addHandler(_file_handler)
231
bzr_log_file = open(_bzr_log_filename, 'at', 1) # line buffered
232
# bzr_log_file.tell() on windows always return 0 until some writing done
233
bzr_log_file.write('\n')
234
if bzr_log_file.tell() <= 2:
235
bzr_log_file.write("this is a debug log for diagnosing/reporting problems in bzr\n")
236
bzr_log_file.write("you can delete or truncate this file, or include sections in\n")
237
bzr_log_file.write("bug reports to https://bugs.launchpad.net/bzr/+filebug\n\n")
191
239
except IOError, e:
192
240
warning("failed to open trace file: %s" % (e))
241
# TODO: What should happen if we fail to open the trace file? Maybe the
242
# objects should be pointed at /dev/null or the equivalent? Currently
243
# returns None which will cause failures later.
247
def enable_default_logging():
248
"""Configure default logging: messages to stderr and debug to .bzr.log
250
This should only be called once per process.
252
Non-command-line programs embedding bzrlib do not need to call this. They
253
can instead either pass a file to _push_log_file, or act directly on
254
logging.getLogger("bzr").
256
Output can be redirected away by calling _push_log_file.
258
# Do this before we open the log file, so we prevent
259
# get_terminal_encoding() from mutter()ing multiple times
260
term_encoding = osutils.get_terminal_encoding()
261
start_time = osutils.format_local_date(_bzr_log_start_time,
263
# create encoded wrapper around stderr
264
bzr_log_file = _open_bzr_log()
265
if bzr_log_file is not None:
266
bzr_log_file.write(start_time.encode('utf-8') + '\n')
267
push_log_file(bzr_log_file,
268
r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s',
269
r'%Y-%m-%d %H:%M:%S')
270
# after hooking output into bzr_log, we also need to attach a stderr
271
# handler, writing only at level info and with encoding
272
writer_factory = codecs.getwriter(term_encoding)
273
encoded_stderr = writer_factory(sys.stderr, errors='replace')
274
stderr_handler = logging.StreamHandler(encoded_stderr)
275
stderr_handler.setLevel(logging.INFO)
276
logging.getLogger('bzr').addHandler(stderr_handler)
279
def push_log_file(to_file, log_format=None, date_format=None):
280
"""Intercept log and trace messages and send them to a file.
282
:param to_file: A file-like object to which messages will be sent.
284
:returns: A memento that should be passed to _pop_log_file to restore the
285
previously active logging.
289
new_handler = logging.StreamHandler(to_file)
290
new_handler.setLevel(logging.DEBUG)
291
if log_format is None:
292
log_format = '%(levelname)8s %(message)s'
293
new_handler.setFormatter(logging.Formatter(log_format, date_format))
294
# save and remove any existing log handlers
295
bzr_logger = logging.getLogger('bzr')
296
old_handlers = bzr_logger.handlers[:]
297
del bzr_logger.handlers[:]
298
# set that as the default logger
299
bzr_logger.addHandler(new_handler)
300
bzr_logger.setLevel(logging.DEBUG)
301
# TODO: check if any changes are needed to the root logger
303
# TODO: also probably need to save and restore the level on bzr_logger.
304
# but maybe we can avoid setting the logger level altogether, and just set
305
# the level on the handler?
307
# save the old trace file
308
old_trace_file = _trace_file
309
# send traces to the new one
310
_trace_file = to_file
311
result = new_handler, _trace_file
312
return ('log_memento', old_handlers, new_handler, old_trace_file, to_file)
315
def pop_log_file((magic, old_handlers, new_handler, old_trace_file, new_trace_file)):
316
"""Undo changes to logging/tracing done by _push_log_file.
318
This flushes, but does not close the trace file.
320
Takes the memento returned from _push_log_file."""
322
_trace_file = old_trace_file
323
bzr_logger = logging.getLogger('bzr')
324
bzr_logger.removeHandler(new_handler)
325
# must be closed, otherwise logging will try to close it atexit, and the
326
# file will likely already be closed underneath.
328
bzr_logger.handlers = old_handlers
329
new_trace_file.flush()
195
332
def log_exception_quietly():
196
333
"""Log the last exception to the trace file only.
198
Used for exceptions that occur internally and that may be
199
interesting to developers but not to users. For example,
335
Used for exceptions that occur internally and that may be
336
interesting to developers but not to users. For example,
200
337
errors loading plugins.
203
339
mutter(traceback.format_exc())
206
def enable_default_logging():
207
"""Configure default logging to stderr and .bzr.log"""
208
# FIXME: if this is run twice, things get confused
209
global _stderr_handler, _file_handler, _trace_file, _bzr_log_file
210
_stderr_handler = logging.StreamHandler()
211
logging.getLogger('').addHandler(_stderr_handler)
212
_stderr_handler.setLevel(logging.INFO)
213
if not _file_handler:
215
_trace_file = _bzr_log_file
217
_file_handler.setLevel(logging.DEBUG)
218
_bzr_logger.setLevel(logging.DEBUG)
342
def set_verbosity_level(level):
343
"""Set the verbosity level.
345
:param level: -ve for quiet, 0 for normal, +ve for verbose
347
global _verbosity_level
348
_verbosity_level = level
349
_update_logging_level(level < 0)
352
def get_verbosity_level():
353
"""Get the verbosity level.
355
See set_verbosity_level() for values.
357
return _verbosity_level
221
360
def be_quiet(quiet=True):
222
global _stderr_handler, _stderr_quiet
224
_stderr_quiet = quiet
226
_stderr_handler.setLevel(logging.WARNING)
228
_stderr_handler.setLevel(logging.INFO)
361
# Perhaps this could be deprecated now ...
363
set_verbosity_level(-1)
365
set_verbosity_level(0)
368
def _update_logging_level(quiet=True):
369
"""Hide INFO messages if quiet."""
371
_bzr_logger.setLevel(logging.WARNING)
373
_bzr_logger.setLevel(logging.INFO)
236
def disable_default_logging():
237
"""Turn off default log handlers.
239
This is intended to be used by the test framework, which doesn't
240
want leakage from the code-under-test into the main logs.
243
l = logging.getLogger('')
244
l.removeHandler(_stderr_handler)
246
l.removeHandler(_file_handler)
250
def enable_test_log(to_file):
251
"""Redirect logging to a temporary file for a test
253
returns an opaque reference that should be passed to disable_test_log
254
after the test completes.
256
disable_default_logging()
259
hdlr = logging.StreamHandler(to_file)
260
hdlr.setLevel(logging.DEBUG)
261
hdlr.setFormatter(logging.Formatter('%(levelname)8s %(message)s'))
262
_bzr_logger.addHandler(hdlr)
263
_bzr_logger.setLevel(logging.DEBUG)
264
result = hdlr, _trace_file, _trace_depth
265
_trace_file = to_file
270
def disable_test_log((test_log_hdlr, old_trace_file, old_trace_depth)):
271
_bzr_logger.removeHandler(test_log_hdlr)
272
test_log_hdlr.close()
275
_trace_file = old_trace_file
276
_trace_depth = old_trace_depth
278
enable_default_logging()
377
"""Is the verbosity level negative?"""
378
return _verbosity_level < 0
382
"""Is the verbosity level positive?"""
383
return _verbosity_level > 0
386
def debug_memory(message='', short=True):
387
"""Write out a memory dump."""
388
if sys.platform == 'win32':
389
from bzrlib import win32utils
390
win32utils.debug_memory_win32api(message=message, short=short)
392
_debug_memory_proc(message=message, short=short)
395
_short_fields = ('VmPeak', 'VmSize', 'VmRSS')
397
def _debug_memory_proc(message='', short=True):
399
status_file = file('/proc/%s/status' % os.getpid(), 'rb')
403
status = status_file.read()
408
for line in status.splitlines():
412
for field in _short_fields:
413
if line.startswith(field):
281
418
def report_exception(exc_info, err_file):
419
"""Report an exception to err_file (typically stderr) and to .bzr.log.
421
This will show either a full traceback or a short message as appropriate.
423
:return: The appropriate exit code for this error.
282
425
exc_type, exc_object, exc_tb = exc_info
283
426
# Log the full traceback to ~/.bzr.log
284
427
log_exception_quietly()
285
428
if (isinstance(exc_object, IOError)
286
429
and getattr(exc_object, 'errno', None) == errno.EPIPE):
287
print >>err_file, "bzr: broken pipe"
430
err_file.write("bzr: broken pipe\n")
431
return errors.EXIT_ERROR
288
432
elif isinstance(exc_object, KeyboardInterrupt):
289
print >>err_file, "bzr: interrupted"
433
err_file.write("bzr: interrupted\n")
434
return errors.EXIT_ERROR
435
elif isinstance(exc_object, MemoryError):
436
err_file.write("bzr: out of memory\n")
437
return errors.EXIT_ERROR
438
elif isinstance(exc_object, ImportError) \
439
and str(exc_object).startswith("No module named "):
440
report_user_error(exc_info, err_file,
441
'You may need to install this Python library separately.')
442
return errors.EXIT_ERROR
290
443
elif not getattr(exc_object, 'internal_error', True):
291
444
report_user_error(exc_info, err_file)
445
return errors.EXIT_ERROR
292
446
elif isinstance(exc_object, (OSError, IOError)):
293
447
# Might be nice to catch all of these and show them as something more
294
448
# specific, but there are too many cases at the moment.
295
449
report_user_error(exc_info, err_file)
450
return errors.EXIT_ERROR
297
452
report_bug(exc_info, err_file)
453
return errors.EXIT_INTERNAL_ERROR
456
def print_exception(exc_info, err_file):
457
exc_type, exc_object, exc_tb = exc_info
458
err_file.write("bzr: ERROR: %s.%s: %s\n" % (
459
exc_type.__module__, exc_type.__name__, exc_object))
461
traceback.print_exception(exc_type, exc_object, exc_tb, file=err_file)
300
464
# TODO: Should these be specially encoding the output?
301
def report_user_error(exc_info, err_file):
465
def report_user_error(exc_info, err_file, advice=None):
302
466
"""Report to err_file an error that's not an internal error.
304
468
These don't get a traceback unless -Derror was given.
470
:param exc_info: 3-tuple from sys.exc_info()
471
:param advice: Extra advice to the user to be printed following the
306
474
if 'error' in debug.debug_flags:
307
report_bug(exc_info, err_file)
475
print_exception(exc_info, err_file)
309
print >>err_file, "bzr: ERROR:", str(exc_info[1])
477
err_file.write("bzr: ERROR: %s\n" % (exc_info[1],))
479
err_file.write("%s\n" % (advice,))
312
482
def report_bug(exc_info, err_file):
313
483
"""Report an exception that probably indicates a bug in bzr"""
315
exc_type, exc_object, exc_tb = exc_info
316
print >>err_file, "bzr: ERROR: %s.%s: %s" % (
317
exc_type.__module__, exc_type.__name__, exc_object)
319
traceback.print_exception(exc_type, exc_object, exc_tb, file=err_file)
321
print >>err_file, 'bzr %s on python %s (%s)' % \
323
'.'.join(map(str, sys.version_info)),
325
print >>err_file, 'arguments: %r' % sys.argv
327
print >>err_file, "** please send this report to bazaar@lists.ubuntu.com"
484
from bzrlib.crash import report_bug
485
report_bug(exc_info, err_file)