48
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# FIXME: Unfortunately it turns out that python's logging module
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# is quite expensive, even when the message is not printed by any handlers.
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# We should perhaps change back to just simply doing it here.
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# On the other hand, as of 1.2 we generally only call the mutter() statement
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# if (according to debug_flags) we actually intend to write it. So the
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# increased cost of logging.py is not so bad, and we could standardize on
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57
from bzrlib.lazy_import import lazy_import
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58
lazy_import(globals(), """
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59
from cStringIO import StringIO
73
from bzrlib.symbol_versioning import (
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68
lazy_import(globals(), """
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69
from bzrlib import (
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# global verbosity for bzrlib; controls the log level for stderr; 0=normal; <0
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# is quiet; >0 is verbose.
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_stderr_handler = None
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_verbosity_level = 0
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# File-like object where mutter/debug output is currently sent. Can be
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# changed by _push_log_file etc. This is directly manipulated by some
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# external code; maybe there should be functions to do that more precisely
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# than push/pop_log_file.
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# Absolute path for ~/.bzr.log. Not changed even if the log/trace output is
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# redirected elsewhere. Used to show the location in --version.
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_bzr_log_filename = None
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# The time the first message was written to the trace file, so that we can
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# show relative times since startup.
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_bzr_log_start_time = bzrlib._start_time
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# held in a global for quick reference
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# configure convenient aliases for output routines
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_bzr_logger = logging.getLogger('bzr')
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def note(*args, **kwargs):
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# FIXME note always emits utf-8, regardless of the terminal encoding
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# FIXME: clearing the ui and then going through the abstract logging
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# framework is whack; we should probably have a logging Handler that
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# deals with terminal output if needed.
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bzrlib.ui.ui_factory.clear_term()
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_bzr_logger.info(*args, **kwargs)
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def warning(*args, **kwargs):
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98
bzrlib.ui.ui_factory.clear_term()
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_bzr_logger.warning(*args, **kwargs)
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@deprecated_function(deprecated_in((2, 1, 0)))
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def info(*args, **kwargs):
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"""Deprecated: use trace.note instead."""
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note(*args, **kwargs)
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@deprecated_function(deprecated_in((2, 1, 0)))
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def log_error(*args, **kwargs):
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"""Deprecated: use bzrlib.trace.show_error instead"""
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_bzr_logger.error(*args, **kwargs)
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@deprecated_function(deprecated_in((2, 1, 0)))
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def error(*args, **kwargs):
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"""Deprecated: use bzrlib.trace.show_error instead"""
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_bzr_logger.error(*args, **kwargs)
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def show_error(*args, **kwargs):
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"""Show an error message to the user.
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Don't use this for exceptions, use report_exception instead.
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_bzr_logger.error(*args, **kwargs)
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log_error = _bzr_logger.error
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error = _bzr_logger.error
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106
def mutter(fmt, *args):
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107
if _trace_file is None:
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# XXX: Don't check this every time; instead anyone who closes the file
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# ought to deregister it. We can tolerate None.
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if (getattr(_trace_file, 'closed', None) is not None) and _trace_file.closed:
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def _get_bzr_log_filename():
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bzr_log = os.environ.get('BZR_LOG')
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home = os.environ.get('BZR_HOME')
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def open_tracefile(tracefilename=None):
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# Messages are always written to here, so that we have some
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# information if something goes wrong. In a future version this
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# file will be removed on successful completion.
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global _file_handler, _bzr_log_file, _bzr_log_filename
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if tracefilename is None:
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if sys.platform == 'win32':
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from bzrlib import win32utils
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home = win32utils.get_home_location()
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home = os.path.expanduser('~')
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return os.path.join(home, '.bzr.log')
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"""Open the .bzr.log trace file.
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If the log is more than a particular length, the old file is renamed to
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.bzr.log.old and a new file is started. Otherwise, we append to the
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This sets the global _bzr_log_filename.
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global _bzr_log_filename
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def _open_or_create_log_file(filename):
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"""Open existing log file, or create with ownership and permissions
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It inherits the ownership and permissions (masked by umask) from
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the containing directory to cope better with being run under sudo
247
with $HOME still set to the user's homedir.
249
flags = os.O_WRONLY | os.O_APPEND | osutils.O_TEXT
252
fd = os.open(filename, flags)
255
if e.errno != errno.ENOENT:
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fd = os.open(filename, flags | os.O_CREAT | os.O_EXCL, 0666)
260
if e.errno != errno.EEXIST:
263
osutils.copy_ownership_from_path(filename)
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return os.fdopen(fd, 'at', 0) # unbuffered
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_bzr_log_filename = _get_bzr_log_filename()
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_bzr_log_filename = os.path.join(home, '.bzr.log')
175
_bzr_log_filename = tracefilename
177
_bzr_log_filename = os.path.expanduser(_bzr_log_filename)
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_rollover_trace_maybe(_bzr_log_filename)
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bzr_log_file = _open_or_create_log_file(_bzr_log_filename)
272
bzr_log_file.write('\n')
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if bzr_log_file.tell() <= 2:
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bzr_log_file.write("this is a debug log for diagnosing/reporting problems in bzr\n")
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bzr_log_file.write("you can delete or truncate this file, or include sections in\n")
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bzr_log_file.write("bug reports to https://bugs.launchpad.net/bzr/+filebug\n\n")
280
except EnvironmentError, e:
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# If we are failing to open the log, then most likely logging has not
282
# been set up yet. So we just write to stderr rather than using
283
# 'warning()'. If we using warning(), users get the unhelpful 'no
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# handlers registered for "bzr"' when something goes wrong on the
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# server. (bug #503886)
286
sys.stderr.write("failed to open trace file: %s\n" % (e,))
287
# TODO: What should happen if we fail to open the trace file? Maybe the
288
# objects should be pointed at /dev/null or the equivalent? Currently
289
# returns None which will cause failures later.
293
def enable_default_logging():
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"""Configure default logging: messages to stderr and debug to .bzr.log
296
This should only be called once per process.
298
Non-command-line programs embedding bzrlib do not need to call this. They
299
can instead either pass a file to _push_log_file, or act directly on
300
logging.getLogger("bzr").
302
Output can be redirected away by calling _push_log_file.
304
# Do this before we open the log file, so we prevent
305
# get_terminal_encoding() from mutter()ing multiple times
306
term_encoding = osutils.get_terminal_encoding()
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start_time = osutils.format_local_date(_bzr_log_start_time,
309
# create encoded wrapper around stderr
310
bzr_log_file = _open_bzr_log()
311
if bzr_log_file is not None:
312
bzr_log_file.write(start_time.encode('utf-8') + '\n')
313
push_log_file(bzr_log_file,
314
r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s',
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r'%Y-%m-%d %H:%M:%S')
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# after hooking output into bzr_log, we also need to attach a stderr
317
# handler, writing only at level info and with encoding
318
writer_factory = codecs.getwriter(term_encoding)
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encoded_stderr = writer_factory(sys.stderr, errors='replace')
320
stderr_handler = logging.StreamHandler(encoded_stderr)
321
stderr_handler.setLevel(logging.INFO)
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logging.getLogger('bzr').addHandler(stderr_handler)
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def push_log_file(to_file, log_format=None, date_format=None):
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"""Intercept log and trace messages and send them to a file.
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:param to_file: A file-like object to which messages will be sent.
330
:returns: A memento that should be passed to _pop_log_file to restore the
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previously active logging.
335
new_handler = logging.StreamHandler(to_file)
336
new_handler.setLevel(logging.DEBUG)
337
if log_format is None:
338
log_format = '%(levelname)8s %(message)s'
339
new_handler.setFormatter(logging.Formatter(log_format, date_format))
340
# save and remove any existing log handlers
341
bzr_logger = logging.getLogger('bzr')
342
old_handlers = bzr_logger.handlers[:]
343
del bzr_logger.handlers[:]
344
# set that as the default logger
345
bzr_logger.addHandler(new_handler)
346
bzr_logger.setLevel(logging.DEBUG)
347
# TODO: check if any changes are needed to the root logger
349
# TODO: also probably need to save and restore the level on bzr_logger.
350
# but maybe we can avoid setting the logger level altogether, and just set
351
# the level on the handler?
353
# save the old trace file
354
old_trace_file = _trace_file
355
# send traces to the new one
356
_trace_file = to_file
357
result = new_handler, _trace_file
358
return ('log_memento', old_handlers, new_handler, old_trace_file, to_file)
361
def pop_log_file((magic, old_handlers, new_handler, old_trace_file, new_trace_file)):
362
"""Undo changes to logging/tracing done by _push_log_file.
364
This flushes, but does not close the trace file.
366
Takes the memento returned from _push_log_file."""
368
_trace_file = old_trace_file
369
bzr_logger = logging.getLogger('bzr')
370
bzr_logger.removeHandler(new_handler)
371
# must be closed, otherwise logging will try to close it atexit, and the
372
# file will likely already be closed underneath.
374
bzr_logger.handlers = old_handlers
375
new_trace_file.flush()
181
#tf = codecs.open(trace_fname, 'at', 'utf8', buffering=LINE_BUFFERED)
182
tf = open(_bzr_log_filename, 'at', LINE_BUFFERED)
184
# tf.tell() on windows always return 0 until some writing done
187
tf.write("this is a debug log for diagnosing/reporting problems in bzr\n")
188
tf.write("you can delete or truncate this file, or include sections in\n")
189
tf.write("bug reports to bazaar@lists.canonical.com\n\n")
190
_file_handler = logging.StreamHandler(tf)
191
fmt = r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s'
192
datefmt = r'%a %H:%M:%S'
193
_file_handler.setFormatter(logging.Formatter(fmt, datefmt))
194
_file_handler.setLevel(logging.DEBUG)
195
logging.getLogger('').addHandler(_file_handler)
197
warning("failed to open trace file: %s" % (e))
378
200
def log_exception_quietly():
379
201
"""Log the last exception to the trace file only.
381
Used for exceptions that occur internally and that may be
382
interesting to developers but not to users. For example,
203
Used for exceptions that occur internally and that may be
204
interesting to developers but not to users. For example,
383
205
errors loading plugins.
385
208
mutter(traceback.format_exc())
211
def enable_default_logging():
212
"""Configure default logging to stderr and .bzr.log"""
213
# FIXME: if this is run twice, things get confused
214
global _stderr_handler, _file_handler, _trace_file, _bzr_log_file
215
_stderr_handler = logging.StreamHandler()
216
logging.getLogger('').addHandler(_stderr_handler)
217
_stderr_handler.setLevel(logging.INFO)
218
if not _file_handler:
220
_trace_file = _bzr_log_file
222
_file_handler.setLevel(logging.DEBUG)
223
_bzr_logger.setLevel(logging.DEBUG)
388
226
def set_verbosity_level(level):
389
227
"""Set the verbosity level.
429
267
return _verbosity_level > 0
432
def debug_memory(message='', short=True):
433
"""Write out a memory dump."""
434
if sys.platform == 'win32':
435
from bzrlib import win32utils
436
win32utils.debug_memory_win32api(message=message, short=short)
438
_debug_memory_proc(message=message, short=short)
441
_short_fields = ('VmPeak', 'VmSize', 'VmRSS')
443
def _debug_memory_proc(message='', short=True):
445
status_file = file('/proc/%s/status' % os.getpid(), 'rb')
449
status = status_file.read()
454
for line in status.splitlines():
458
for field in _short_fields:
459
if line.startswith(field):
270
def disable_default_logging():
271
"""Turn off default log handlers.
273
This is intended to be used by the test framework, which doesn't
274
want leakage from the code-under-test into the main logs.
277
l = logging.getLogger('')
278
l.removeHandler(_stderr_handler)
280
l.removeHandler(_file_handler)
284
def enable_test_log(to_file):
285
"""Redirect logging to a temporary file for a test
287
returns an opaque reference that should be passed to disable_test_log
288
after the test completes.
290
disable_default_logging()
293
hdlr = logging.StreamHandler(to_file)
294
hdlr.setLevel(logging.DEBUG)
295
hdlr.setFormatter(logging.Formatter('%(levelname)8s %(message)s'))
296
_bzr_logger.addHandler(hdlr)
297
_bzr_logger.setLevel(logging.DEBUG)
298
result = hdlr, _trace_file, _trace_depth
299
_trace_file = to_file
304
def disable_test_log((test_log_hdlr, old_trace_file, old_trace_depth)):
305
_bzr_logger.removeHandler(test_log_hdlr)
306
test_log_hdlr.close()
309
_trace_file = old_trace_file
310
_trace_depth = old_trace_depth
312
enable_default_logging()
464
315
def report_exception(exc_info, err_file):
502
342
return errors.EXIT_INTERNAL_ERROR
505
def print_exception(exc_info, err_file):
506
exc_type, exc_object, exc_tb = exc_info
507
err_file.write("bzr: ERROR: %s.%s: %s\n" % (
508
exc_type.__module__, exc_type.__name__, exc_object))
510
traceback.print_exception(exc_type, exc_object, exc_tb, file=err_file)
513
345
# TODO: Should these be specially encoding the output?
514
def report_user_error(exc_info, err_file, advice=None):
346
def report_user_error(exc_info, err_file):
515
347
"""Report to err_file an error that's not an internal error.
517
349
These don't get a traceback unless -Derror was given.
519
:param exc_info: 3-tuple from sys.exc_info()
520
:param advice: Extra advice to the user to be printed following the
351
if 'error' in debug.debug_flags:
352
report_bug(exc_info, err_file)
523
354
err_file.write("bzr: ERROR: %s\n" % (exc_info[1],))
525
err_file.write("%s\n" % (advice,))
528
357
def report_bug(exc_info, err_file):
529
358
"""Report an exception that probably indicates a bug in bzr"""
530
from bzrlib.crash import report_bug
531
report_bug(exc_info, err_file)
534
def _flush_stdout_stderr():
535
# installed into an atexit hook by bzrlib.initialize()
541
if e.errno in [errno.EINVAL, errno.EPIPE]:
548
# run from atexit hook
360
exc_type, exc_object, exc_tb = exc_info
361
err_file.write("bzr: ERROR: %s.%s: %s\n" % (
362
exc_type.__module__, exc_type.__name__, exc_object))
364
traceback.print_exception(exc_type, exc_object, exc_tb, file=err_file)
366
err_file.write('bzr %s on python %s (%s)\n' % \
368
'.'.join(map(str, sys.version_info)),
370
err_file.write('arguments: %r\n' % sys.argv)
372
'encoding: %r, fsenc: %r, lang: %r\n' % (
373
osutils.get_user_encoding(), sys.getfilesystemencoding(),
374
os.environ.get('LANG')))
375
err_file.write("plugins:\n")
376
for name, a_plugin in sorted(plugin.plugins().items()):
377
err_file.write(" %-20s %s [%s]\n" %
378
(name, a_plugin.path(), a_plugin.__version__))
381
"** Please send this report to bazaar@lists.ubuntu.com\n"
382
" with a description of what you were doing when the\n"