Skip to content

gh-90535: Fix support of interval>1 in logging.TimedRotatingFileHandler #116220

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 3 commits into from
Mar 16, 2024
Merged

gh-90535: Fix support of interval>1 in logging.TimedRotatingFileHandler #116220

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
c1feb41
gh-90535: Fix support of interval>1 in logging.TimedRotatingFileHandler
serhiy-storchaka Mar 1, 2024
31ffabc
Merge branch 'main' into logging-rotate-interwal
serhiy-storchaka Mar 15, 2024
b5548db
Merge ifs.
serhiy-storchaka Mar 15, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 4 additions & 1 deletion Lib/logging/handlers.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -340,7 +340,10 @@ def computeRollover(self, currentTime):
daysToWait = self.dayOfWeek - day
else:
daysToWait = 6 - day + self.dayOfWeek + 1
result += daysToWait * (60 * 60 * 24)
result += daysToWait * _MIDNIGHT
result += self.interval - _MIDNIGHT * 7
else:
result += self.interval - _MIDNIGHT
if not self.utc:
dstNow = t[-1]
dstAtRollover = time.localtime(result)[-1]
Expand Down
200 changes: 166 additions & 34 deletions Lib/test/test_logging.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -6573,6 +6573,129 @@ def test(current, expected):

fh.close()

# Run with US-style DST rules: DST begins 2 a.m. on second Sunday in
# March (M3.2.0) and ends 2 a.m. on first Sunday in November (M11.1.0).
@support.run_with_tz('EST+05EDT,M3.2.0,M11.1.0')
def test_compute_rollover_MIDNIGHT_local_interval(self):
# DST begins at 2012-3-11T02:00:00 and ends at 2012-11-4T02:00:00.
DT = datetime.datetime
def test(current, expected):
actual = fh.computeRollover(current.timestamp())
diff = actual - expected.timestamp()
if diff:
self.assertEqual(diff, 0, datetime.timedelta(seconds=diff))

fh = logging.handlers.TimedRotatingFileHandler(
self.fn, encoding="utf-8", when='MIDNIGHT', utc=False, interval=3)

test(DT(2012, 3, 8, 23, 59, 59), DT(2012, 3, 11, 0, 0))
test(DT(2012, 3, 9, 0, 0), DT(2012, 3, 12, 0, 0))
test(DT(2012, 3, 9, 1, 0), DT(2012, 3, 12, 0, 0))
test(DT(2012, 3, 10, 23, 59, 59), DT(2012, 3, 13, 0, 0))
test(DT(2012, 3, 11, 0, 0), DT(2012, 3, 14, 0, 0))
test(DT(2012, 3, 11, 1, 0), DT(2012, 3, 14, 0, 0))

test(DT(2012, 11, 1, 23, 59, 59), DT(2012, 11, 4, 0, 0))
test(DT(2012, 11, 2, 0, 0), DT(2012, 11, 5, 0, 0))
test(DT(2012, 11, 2, 1, 0), DT(2012, 11, 5, 0, 0))
test(DT(2012, 11, 3, 23, 59, 59), DT(2012, 11, 6, 0, 0))
test(DT(2012, 11, 4, 0, 0), DT(2012, 11, 7, 0, 0))
test(DT(2012, 11, 4, 1, 0), DT(2012, 11, 7, 0, 0))

fh.close()

fh = logging.handlers.TimedRotatingFileHandler(
self.fn, encoding="utf-8", when='MIDNIGHT', utc=False, interval=3,
atTime=datetime.time(12, 0, 0))

test(DT(2012, 3, 8, 11, 59, 59), DT(2012, 3, 10, 12, 0))
test(DT(2012, 3, 8, 12, 0), DT(2012, 3, 11, 12, 0))
test(DT(2012, 3, 8, 13, 0), DT(2012, 3, 11, 12, 0))
test(DT(2012, 3, 10, 11, 59, 59), DT(2012, 3, 12, 12, 0))
test(DT(2012, 3, 10, 12, 0), DT(2012, 3, 13, 12, 0))
test(DT(2012, 3, 10, 13, 0), DT(2012, 3, 13, 12, 0))

test(DT(2012, 11, 1, 11, 59, 59), DT(2012, 11, 3, 12, 0))
test(DT(2012, 11, 1, 12, 0), DT(2012, 11, 4, 12, 0))
test(DT(2012, 11, 1, 13, 0), DT(2012, 11, 4, 12, 0))
test(DT(2012, 11, 3, 11, 59, 59), DT(2012, 11, 5, 12, 0))
test(DT(2012, 11, 3, 12, 0), DT(2012, 11, 6, 12, 0))
test(DT(2012, 11, 3, 13, 0), DT(2012, 11, 6, 12, 0))

fh.close()

# Run with US-style DST rules: DST begins 2 a.m. on second Sunday in
# March (M3.2.0) and ends 2 a.m. on first Sunday in November (M11.1.0).
@support.run_with_tz('EST+05EDT,M3.2.0,M11.1.0')
def test_compute_rollover_W6_local_interval(self):
# DST begins at 2012-3-11T02:00:00 and ends at 2012-11-4T02:00:00.
DT = datetime.datetime
def test(current, expected):
actual = fh.computeRollover(current.timestamp())
diff = actual - expected.timestamp()
if diff:
self.assertEqual(diff, 0, datetime.timedelta(seconds=diff))

fh = logging.handlers.TimedRotatingFileHandler(
self.fn, encoding="utf-8", when='W6', utc=False, interval=3)

test(DT(2012, 2, 19, 23, 59, 59), DT(2012, 3, 5, 0, 0))
test(DT(2012, 2, 20, 0, 0), DT(2012, 3, 12, 0, 0))
test(DT(2012, 2, 20, 1, 0), DT(2012, 3, 12, 0, 0))
test(DT(2012, 3, 4, 23, 59, 59), DT(2012, 3, 19, 0, 0))
test(DT(2012, 3, 5, 0, 0), DT(2012, 3, 26, 0, 0))
test(DT(2012, 3, 5, 1, 0), DT(2012, 3, 26, 0, 0))

test(DT(2012, 10, 14, 23, 59, 59), DT(2012, 10, 29, 0, 0))
test(DT(2012, 10, 15, 0, 0), DT(2012, 11, 5, 0, 0))
test(DT(2012, 10, 15, 1, 0), DT(2012, 11, 5, 0, 0))
test(DT(2012, 10, 28, 23, 59, 59), DT(2012, 11, 12, 0, 0))
test(DT(2012, 10, 29, 0, 0), DT(2012, 11, 19, 0, 0))
test(DT(2012, 10, 29, 1, 0), DT(2012, 11, 19, 0, 0))

fh.close()

fh = logging.handlers.TimedRotatingFileHandler(
self.fn, encoding="utf-8", when='W6', utc=False, interval=3,
atTime=datetime.time(0, 0, 0))

test(DT(2012, 2, 25, 23, 59, 59), DT(2012, 3, 11, 0, 0))
test(DT(2012, 2, 26, 0, 0), DT(2012, 3, 18, 0, 0))
test(DT(2012, 2, 26, 1, 0), DT(2012, 3, 18, 0, 0))
test(DT(2012, 3, 10, 23, 59, 59), DT(2012, 3, 25, 0, 0))
test(DT(2012, 3, 11, 0, 0), DT(2012, 4, 1, 0, 0))
test(DT(2012, 3, 11, 1, 0), DT(2012, 4, 1, 0, 0))

test(DT(2012, 10, 20, 23, 59, 59), DT(2012, 11, 4, 0, 0))
test(DT(2012, 10, 21, 0, 0), DT(2012, 11, 11, 0, 0))
test(DT(2012, 10, 21, 1, 0), DT(2012, 11, 11, 0, 0))
test(DT(2012, 11, 3, 23, 59, 59), DT(2012, 11, 18, 0, 0))
test(DT(2012, 11, 4, 0, 0), DT(2012, 11, 25, 0, 0))
test(DT(2012, 11, 4, 1, 0), DT(2012, 11, 25, 0, 0))

fh.close()

fh = logging.handlers.TimedRotatingFileHandler(
self.fn, encoding="utf-8", when='W6', utc=False, interval=3,
atTime=datetime.time(12, 0, 0))

test(DT(2012, 2, 18, 11, 59, 59), DT(2012, 3, 4, 12, 0))
test(DT(2012, 2, 19, 12, 0), DT(2012, 3, 11, 12, 0))
test(DT(2012, 2, 19, 13, 0), DT(2012, 3, 11, 12, 0))
test(DT(2012, 3, 4, 11, 59, 59), DT(2012, 3, 18, 12, 0))
test(DT(2012, 3, 4, 12, 0), DT(2012, 3, 25, 12, 0))
test(DT(2012, 3, 4, 13, 0), DT(2012, 3, 25, 12, 0))

test(DT(2012, 10, 14, 11, 59, 59), DT(2012, 10, 28, 12, 0))
test(DT(2012, 10, 14, 12, 0), DT(2012, 11, 4, 12, 0))
test(DT(2012, 10, 14, 13, 0), DT(2012, 11, 4, 12, 0))
test(DT(2012, 10, 28, 11, 59, 59), DT(2012, 11, 11, 12, 0))
test(DT(2012, 10, 28, 12, 0), DT(2012, 11, 18, 12, 0))
test(DT(2012, 10, 28, 13, 0), DT(2012, 11, 18, 12, 0))

fh.close()


def secs(**kw):
return datetime.timedelta(**kw) // datetime.timedelta(seconds=1)

Expand All @@ -6584,40 +6707,49 @@ def secs(**kw):
# current time (epoch start) is a Thursday, W0 means Monday
('W0', secs(days=4, hours=24)),
):
def test_compute_rollover(self, when=when, exp=exp):
rh = logging.handlers.TimedRotatingFileHandler(
self.fn, encoding="utf-8", when=when, interval=1, backupCount=0, utc=True)
currentTime = 0.0
actual = rh.computeRollover(currentTime)
if exp != actual:
# Failures occur on some systems for MIDNIGHT and W0.
# Print detailed calculation for MIDNIGHT so we can try to see
# what's going on
if when == 'MIDNIGHT':
try:
if rh.utc:
t = time.gmtime(currentTime)
else:
t = time.localtime(currentTime)
currentHour = t[3]
currentMinute = t[4]
currentSecond = t[5]
# r is the number of seconds left between now and midnight
r = logging.handlers._MIDNIGHT - ((currentHour * 60 +
currentMinute) * 60 +
currentSecond)
result = currentTime + r
print('t: %s (%s)' % (t, rh.utc), file=sys.stderr)
print('currentHour: %s' % currentHour, file=sys.stderr)
print('currentMinute: %s' % currentMinute, file=sys.stderr)
print('currentSecond: %s' % currentSecond, file=sys.stderr)
print('r: %s' % r, file=sys.stderr)
print('result: %s' % result, file=sys.stderr)
except Exception as e:
print('exception in diagnostic code: %s' % e, file=sys.stderr)
self.assertEqual(exp, actual)
rh.close()
setattr(TimedRotatingFileHandlerTest, "test_compute_rollover_%s" % when, test_compute_rollover)
for interval in 1, 3:
def test_compute_rollover(self, when=when, interval=interval, exp=exp):
rh = logging.handlers.TimedRotatingFileHandler(
self.fn, encoding="utf-8", when=when, interval=interval, backupCount=0, utc=True)
currentTime = 0.0
actual = rh.computeRollover(currentTime)
if when.startswith('W'):
exp += secs(days=7*(interval-1))
else:
exp *= interval
if exp != actual:
# Failures occur on some systems for MIDNIGHT and W0.
# Print detailed calculation for MIDNIGHT so we can try to see
# what's going on
if when == 'MIDNIGHT':
try:
if rh.utc:
t = time.gmtime(currentTime)
else:
t = time.localtime(currentTime)
currentHour = t[3]
currentMinute = t[4]
currentSecond = t[5]
# r is the number of seconds left between now and midnight
r = logging.handlers._MIDNIGHT - ((currentHour * 60 +
currentMinute) * 60 +
currentSecond)
result = currentTime + r
print('t: %s (%s)' % (t, rh.utc), file=sys.stderr)
print('currentHour: %s' % currentHour, file=sys.stderr)
print('currentMinute: %s' % currentMinute, file=sys.stderr)
print('currentSecond: %s' % currentSecond, file=sys.stderr)
print('r: %s' % r, file=sys.stderr)
print('result: %s' % result, file=sys.stderr)
except Exception as e:
print('exception in diagnostic code: %s' % e, file=sys.stderr)
self.assertEqual(exp, actual)
rh.close()
name = "test_compute_rollover_%s" % when
if interval > 1:
name += "_interval"
test_compute_rollover.__name__ = name
setattr(TimedRotatingFileHandlerTest, name, test_compute_rollover)


@unittest.skipUnless(win32evtlog, 'win32evtlog/win32evtlogutil/pywintypes required for this test.')
Expand Down
3 changes: 3 additions & 0 deletions Misc/NEWS.d/next/Library/2024-03-01-20-23-57.gh-issue-90535.wXm-jC.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
Fix support of *interval* values > 1 in
:class:`logging.TimedRotatingFileHandler` for ``when='MIDNIGHT'`` and
``when='Wx'``.