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util: Brian's horrible hack to figure out how much localtime and utctime differ. Now we'll see if it works on Windows.

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This commit is contained in:
Zooko O'Whielacronx 2009-06-12 13:45:56 -07:00
parent 4a30c5899c
commit 45928315f6
2 changed files with 13 additions and 14 deletions
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2
src/allmydata/test/test_util.py
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@ -792,6 +792,7 @@ class TimeFormat(unittest.TestCase):
time.tzset()
def _help_test_epoch(self):
origtzname = time.tzname
s = time_format.iso_utc_time_to_seconds("1970-01-01T00:00:01")
self.failUnlessEqual(s, 1.0)
s = time_format.iso_utc_time_to_seconds("1970-01-01_00:00:01")
@ -822,6 +823,7 @@ class TimeFormat(unittest.TestCase):
# Look for daylight-savings-related errors.
thatmomentinmarch = time_format.iso_utc_time_to_seconds("2009-03-20 21:49:02.226536")
self.failUnlessEqual(thatmomentinmarch, 1237585742.226536)
self.failUnlessEqual(origtzname, time.tzname)
class CacheDir(unittest.TestCase):
def test_basic(self):

25
src/allmydata/util/time_format.py
View File

@ -7,7 +7,7 @@
# ISO-8601:
# http://www.cl.cam.ac.uk/~mgk25/iso-time.html
import datetime, os, re, time
import datetime, re, time
def iso_utc_date(now=None, t=time.time):
if now is None:
@ -42,19 +42,16 @@ def iso_utc_time_to_seconds(isotime, _conversion_re=re.compile(r"(?P<year>\d{4})
else:
subsecfloat = 0
origtz = os.environ.get('TZ')
os.environ['TZ'] = "UTC"
if hasattr(time, 'tzset'):
time.tzset()
try:
return time.mktime( (year, month, day, hour, minute, second, 0, 1, 0) ) + subsecfloat
finally:
if origtz is None:
del os.environ['TZ']
else:
os.environ['TZ'] = origtz
if hasattr(time, 'tzset'):
time.tzset()
# Brian's hack to figure out the offset from localtime to UTC.
localseconds = time.mktime( (year, month, day, hour, minute, second, 0, 1, 0) )
asifutcstr = iso_utc(localseconds)
asifm = _conversion_re.match(asifutcstr)
asifyear, asifmonth, asifday = int(asifm.group('year')), int(asifm.group('month')), int(asifm.group('day'))
asifhour, asifminute, asifsecond = int(asifm.group('hour')), int(asifm.group('minute')), int(asifm.group('second'))
asifutcsecs = time.mktime( (asifyear, asifmonth, asifday, asifhour, asifminute, asifsecond, 0, 1, 0) )
offset = asifutcsecs - localseconds
return localseconds - offset + subsecfloat
def parse_duration(s):
orig = s