Clean up date and timezone handling.
We used to pass changelog dates around as a "unixtime timezone" string
containing a pair of encoded ints. Now, they get passed around as a
(unixtime, timezone) tuple of numbers, which makes much more sense.
# changelog.py - changelog class for mercurial
#
# Copyright 2005 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.
from revlog import *
from demandload import demandload
demandload(globals(), "os time util")
class changelog(revlog):
def __init__(self, opener):
revlog.__init__(self, opener, "00changelog.i", "00changelog.d")
def extract(self, text):
if not text:
return (nullid, "", "0", [], "")
last = text.index("\n\n")
desc = text[last + 2:]
l = text[:last].splitlines()
manifest = bin(l[0])
user = l[1]
date = l[2].split(' ')
time = int(date.pop(0))
try:
# various tools did silly things with the time zone field.
timezone = int(date[0])
except:
timezone = 0
files = l[3:]
return (manifest, user, (time, timezone), files, desc)
def read(self, node):
return self.extract(self.revision(node))
def add(self, manifest, list, desc, transaction, p1=None, p2=None,
user=None, date=None):
if date:
# validate explicit (probably user-specified) date and
# time zone offset. values must fit in signed 32 bits for
# current 32-bit linux runtimes.
try:
when, offset = map(int, date.split(' '))
except ValueError:
raise ValueError('invalid date: %r' % date)
if abs(when) > 0x7fffffff:
raise ValueError('date exceeds 32 bits: %d' % when)
if abs(offset) >= 43200:
raise ValueError('impossible time zone offset: %d' % offset)
else:
date = "%d %d" % util.makedate()
list.sort()
l = [hex(manifest), user, date] + list + ["", desc]
text = "\n".join(l)
return self.addrevision(text, transaction, self.count(), p1, p2)