13
16
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16
"""Messages and logging for bazaar-ng
18
Messages are sent out through the Python logging library.
20
They can be sent to two places: to stderr, and to ~/.bzr.log.
22
~/.bzr.log gets all messages, and tracebacks of all uncaught
25
Normally stderr only gets messages of level INFO and higher, and gets
26
only a summary of exceptions, not the traceback.
30
# TODO: in debug mode, stderr should get full tracebacks and also
31
# debug messages. (Is this really needed?)
33
# TODO: When running the test suites, we should add an additional
34
# logger that sends messages into the test log file.
44
_stderr_handler = None
47
class QuietFormatter(logging.Formatter):
48
"""Formatter that supresses the details of errors.
50
This is used by default on stderr so as not to scare the user.
52
# At first I tried overriding formatException to suppress the
53
# exception details, but that has global effect: no loggers
54
# can get the exception details is we suppress them here.
56
def format(self, record):
58
if record.levelno >= logging.WARNING:
59
s += record.levelname + ': '
61
s += record.getMessage()
64
##s = textwrap.fill(s)
67
# give just a summary of the exception, not the whole thing
68
exinfo = traceback.extract_tb(record.exc_info[2])
69
# the format of this string matches one of the REs
71
s += (' at %s line %d, in %s()\n' % exinfo[-1][:3])
72
s += ' see ~/.bzr.log for debug information'
80
# configure convenient aliases for output routines
82
_bzr_logger = logging.getLogger('bzr')
83
_bzr_logger.setLevel(logging.DEBUG)
85
info = note = _bzr_logger.info
86
warning = _bzr_logger.warning
87
log_error = _bzr_logger.error
88
error = _bzr_logger.error
89
mutter = _bzr_logger.debug
90
debug = _bzr_logger.debug
95
# we do the rollover using this code, rather than the default from python
96
# logging, because we only want to rollover at program startup, not on each
97
# message. maybe that's not a good enough reason.
99
def _rollover_trace_maybe(trace_fname):
102
size = os.stat(trace_fname)[stat.ST_SIZE]
105
old_fname = trace_fname + '.old'
107
from osutils import rename
108
rename(trace_fname, old_fname)
115
def open_tracefile(tracefilename='~/.bzr.log'):
19
__copyright__ = "Copyright (C) 2005 Canonical Ltd."
20
__author__ = "Martin Pool <mbp@canonical.com>"
23
import sys, os, time, socket, stat, codecs
26
######################################################################
27
# messages and logging
29
## TODO: If --verbose is given then write to both stderr and
30
## _tracefile; perhaps replace _tracefile with a tee thing.
32
global _tracefile, _starttime
35
# used to have % (os.environ['USER'], time.time(), os.getpid()), 'w')
38
# If false, notes also go to stdout; should replace this with --silent
43
# TODO: Somehow tie this to the --verbose option?
48
b = 'bzr: warning: ' + msg + '\n'
55
_tracefile.write('\n')
58
sys.stderr.write('- ' + msg + '\n')
62
b = '* ' + str(msg) + '\n'
76
def create_tracefile(argv):
77
# TODO: Also show contents of /etc/lsb-release, if it can be parsed.
78
# Perhaps that should eventually go into the platform library?
79
# TODO: If the file doesn't exist, add a note describing it.
116
81
# Messages are always written to here, so that we have some
117
82
# information if something goes wrong. In a future version this
118
83
# file will be removed on successful completion.
122
trace_fname = os.path.join(os.path.expanduser(tracefilename))
123
_rollover_trace_maybe(trace_fname)
125
# buffering=1 means line buffered
127
tf = codecs.open(trace_fname, 'at', 'utf8', buffering=1)
129
if os.fstat(tf.fileno())[stat.ST_SIZE] == 0:
130
tf.write("\nthis is a debug log for diagnosing/reporting problems in bzr\n")
131
tf.write("you can delete or truncate this file, or include sections in\n")
132
tf.write("bug reports to bazaar-ng@lists.canonical.com\n\n")
134
_file_handler = logging.StreamHandler(tf)
135
fmt = r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s'
136
datefmt = r'%a %H:%M:%S'
137
_file_handler.setFormatter(logging.Formatter(fmt, datefmt))
138
_file_handler.setLevel(logging.DEBUG)
139
logging.getLogger('').addHandler(_file_handler)
142
warning("failed to open trace file: %s" % (e))
145
def log_startup(argv):
148
debug('bzr %s invoked on python %s (%s)',
150
'.'.join(map(str, sys.version_info)),
153
debug(' arguments: %r', argv)
154
debug(' working dir: %s', os.getcwdu())
157
def log_exception(msg=None):
158
"""Log the last exception into the trace file.
160
The exception string representation is used as the error
161
summary, unless msg is given.
167
if msg and (msg[-1] == '\n'):
170
_bzr_logger.exception(msg)
174
def enable_default_logging():
175
"""Configure default logging to stderr and .bzr.log"""
176
global _stderr_handler, _file_handler
178
_stderr_handler = logging.StreamHandler()
179
_stderr_handler.setFormatter(QuietFormatter())
181
if not _file_handler:
184
if os.environ.get('BZR_DEBUG'):
185
level = logging.DEBUG
189
_stderr_handler.setLevel(logging.INFO)
190
_file_handler.setLevel(level)
192
logging.getLogger('').addHandler(_stderr_handler)
195
def disable_default_logging():
196
"""Turn off default log handlers.
198
This is intended to be used by the test framework, which doesn't
199
want leakage from the code-under-test into the main logs.
202
l = logging.getLogger('')
203
l.removeHandler(_stderr_handler)
205
l.removeHandler(_file_handler)
84
global _starttime, _tracefile
86
_starttime = os.times()[4]
88
# XXX: Is HOME always set on Windows?
89
trace_fname = os.path.join(os.environ['HOME'], '.bzr.log')
90
_tracefile = codecs.open(trace_fname, 'at', 'utf8')
93
if os.fstat(t.fileno())[stat.ST_SIZE] == 0:
94
t.write("\nthis is a debug log for diagnosing/reporting problems in bzr\n")
95
t.write("you can delete or truncate this file, or include sections in\n")
96
t.write("bug reports to bazaar-ng@lists.canonical.com\n\n")
98
# TODO: If we failed to create the file, perhaps give a warning
99
# but don't abort; send things to /dev/null instead?
102
t.write('-' * 60 + '\n')
103
t.write('bzr invoked at %s\n' % bzrlib.osutils.format_date(time.time()))
104
t.write(' version: %s\n' % bzrlib.__version__)
105
t.write(' by %s on %s\n' % (bzrlib.osutils.username(), socket.getfqdn()))
106
t.write(' arguments: %r\n' % argv)
107
t.write(' working dir: %s\n' % os.getcwdu())
109
t.write(' platform: %s\n' % sys.platform)
110
t.write(' python: %s\n' % (sys.version_info,))
113
atexit.register(_close_trace)
118
mutter("finished, %.3fu/%.3fs cpu, %.3fu/%.3fs cum, %.3f elapsed"
119
% (times[:4] + ((times[4] - _starttime),)))
added
removed
bzrlib/trace.py
