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
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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
64
58
lazy_import(globals(), """
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59
from cStringIO import StringIO
73
from bzrlib.symbol_versioning import (
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67
lazy_import(globals(), """
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68
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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80
_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
83
# 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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"""Output a note to the user.
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Takes the same parameters as logging.info.
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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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90
bzrlib.ui.ui_factory.clear_term()
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91
_bzr_logger.info(*args, **kwargs)
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93
def warning(*args, **kwargs):
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95
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)
99
log_error = _bzr_logger.error
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error = _bzr_logger.error
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def mutter(fmt, *args):
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104
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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149
if size <= 4 << 20:
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old_fname = trace_fname + '.old'
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osutils.rename(trace_fname, old_fname)
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from osutils import rename
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rename(trace_fname, old_fname)
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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
160
# information if something goes wrong. In a future version this
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# file will be removed on successful completion.
162
global _file_handler, _bzr_log_file, _bzr_log_filename
165
if tracefilename is None:
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166
if sys.platform == 'win32':
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167
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
244
This sets the global _bzr_log_filename.
246
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
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)
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return os.fdopen(fd, 'at', 0) # unbuffered
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_bzr_log_filename = _get_bzr_log_filename()
171
_bzr_log_filename = os.path.join(home, '.bzr.log')
173
_bzr_log_filename = tracefilename
175
_bzr_log_filename = os.path.expanduser(_bzr_log_filename)
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_rollover_trace_maybe(_bzr_log_filename)
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:
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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")
282
bzr_log_file.write("bug reports to https://bugs.launchpad.net/bzr/+filebug\n\n")
286
except EnvironmentError, e:
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# 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
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# 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
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can instead either pass a file to _push_log_file, or act directly on
306
logging.getLogger("bzr").
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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,
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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
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)
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def push_log_file(to_file, log_format=None, date_format=None):
332
"""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.
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()
179
#tf = codecs.open(trace_fname, 'at', 'utf8', buffering=LINE_BUFFERED)
180
tf = open(_bzr_log_filename, 'at', LINE_BUFFERED)
182
# tf.tell() on windows always return 0 until some writing done
185
tf.write("this is a debug log for diagnosing/reporting problems in bzr\n")
186
tf.write("you can delete or truncate this file, or include sections in\n")
187
tf.write("bug reports to bazaar@lists.canonical.com\n\n")
188
_file_handler = logging.StreamHandler(tf)
189
fmt = r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s'
190
datefmt = r'%a %H:%M:%S'
191
_file_handler.setFormatter(logging.Formatter(fmt, datefmt))
192
_file_handler.setLevel(logging.DEBUG)
193
logging.getLogger('').addHandler(_file_handler)
195
warning("failed to open trace file: %s" % (e))
384
198
def log_exception_quietly():
385
199
"""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,
201
Used for exceptions that occur internally and that may be
202
interesting to developers but not to users. For example,
389
203
errors loading plugins.
391
206
mutter(traceback.format_exc())
209
def enable_default_logging():
210
"""Configure default logging to stderr and .bzr.log"""
211
# FIXME: if this is run twice, things get confused
212
global _stderr_handler, _file_handler, _trace_file, _bzr_log_file
213
_stderr_handler = logging.StreamHandler()
214
logging.getLogger('').addHandler(_stderr_handler)
215
_stderr_handler.setLevel(logging.INFO)
216
if not _file_handler:
218
_trace_file = _bzr_log_file
220
_file_handler.setLevel(logging.DEBUG)
221
_bzr_logger.setLevel(logging.DEBUG)
394
224
def set_verbosity_level(level):
395
225
"""Set the verbosity level.
435
265
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):
268
def disable_default_logging():
269
"""Turn off default log handlers.
271
This is intended to be used by the test framework, which doesn't
272
want leakage from the code-under-test into the main logs.
275
l = logging.getLogger('')
276
l.removeHandler(_stderr_handler)
278
l.removeHandler(_file_handler)
282
def enable_test_log(to_file):
283
"""Redirect logging to a temporary file for a test
285
returns an opaque reference that should be passed to disable_test_log
286
after the test completes.
288
disable_default_logging()
291
hdlr = logging.StreamHandler(to_file)
292
hdlr.setLevel(logging.DEBUG)
293
hdlr.setFormatter(logging.Formatter('%(levelname)8s %(message)s'))
294
_bzr_logger.addHandler(hdlr)
295
_bzr_logger.setLevel(logging.DEBUG)
296
result = hdlr, _trace_file, _trace_depth
297
_trace_file = to_file
302
def disable_test_log((test_log_hdlr, old_trace_file, old_trace_depth)):
303
_bzr_logger.removeHandler(test_log_hdlr)
304
test_log_hdlr.close()
307
_trace_file = old_trace_file
308
_trace_depth = old_trace_depth
310
enable_default_logging()
470
313
def report_exception(exc_info, err_file):
508
340
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)
519
343
# TODO: Should these be specially encoding the output?
520
def report_user_error(exc_info, err_file, advice=None):
344
def report_user_error(exc_info, err_file):
521
345
"""Report to err_file an error that's not an internal error.
523
347
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,))
349
if 'error' in debug.debug_flags:
350
report_bug(exc_info, err_file)
352
print >>err_file, "bzr: ERROR:", str(exc_info[1])
534
355
def report_bug(exc_info, err_file):
535
356
"""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
358
exc_type, exc_object, exc_tb = exc_info
359
print >>err_file, "bzr: ERROR: %s.%s: %s" % (
360
exc_type.__module__, exc_type.__name__, exc_object)
362
traceback.print_exception(exc_type, exc_object, exc_tb, file=err_file)
364
print >>err_file, 'bzr %s on python %s (%s)' % \
366
'.'.join(map(str, sys.version_info)),
368
print >>err_file, 'arguments: %r' % sys.argv
370
print >>err_file, "** please send this report to bazaar@lists.ubuntu.com"