make appendfile simpler so it does not break with revlogng on windows.
it used to cache open files. this made revlogng break because it wants
to rename files when splitting .i into .i/.d, but cannot rename or unlink
open files on windows.
new code is bit slower, but safe on linux and windows. proper fix for
too many open/close of changelog/manifest belongs in different place.
can get 10% speed improvement back.
# 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 i18n import gettext as _
from demandload import demandload
demandload(globals(), "os time util")
class changelog(revlog):
def __init__(self, opener, defversion=0):
revlog.__init__(self, opener, "00changelog.i", "00changelog.d",
defversion)
def extract(self, text):
if not text:
return (nullid, "", (0, 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 = float(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)