revlog: fix revlogio.packentry corner case
We want to store version information about the revlog in the first
entry of its index. The code in packentry was using some heuristics
to detect whether this was the first entry, but these heuristics could
fail in some cases (e.g. rev 0 was empty; rev 1 descends directly from
the nullid and is stored as a delta).
We now give the revision number to packentry to avoid heuristics.
# interhg.py - interhg
#
# Copyright 2007 OHASHI Hideya <ohachige@gmail.com>
#
# Contributor(s):
# Edward Lee <edward.lee@engineering.uiuc.edu>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.
#
# The `interhg' Mercurial extension allows you to change changelog and
# summary text just like InterWiki way.
#
# To enable this extension:
#
# [extensions]
# interhg =
#
# These are some example patterns (link to bug tracking, etc.)
#
# [interhg]
# issues = s!issue(\d+)!<a href="http://bts/issue\1">issue\1<\/a>!
# bugzilla = s!((?:bug|b=|(?=#?\d{4,}))(?:\s*#?)(\d+))!<a..=\2">\1</a>!i
# boldify = s/(^|\s)#(\d+)\b/ <b>#\2<\/b>/
#
# Add any number of names and patterns to match
import re
from mercurial.hgweb import hgweb_mod
from mercurial import templater
orig_escape = templater.common_filters["escape"]
interhg_table = []
def interhg_escape(x):
escstr = orig_escape(x)
for regexp, format in interhg_table:
escstr = regexp.sub(format, escstr)
return escstr
templater.common_filters["escape"] = interhg_escape
orig_refresh = hgweb_mod.hgweb.refresh
def interhg_refresh(self):
interhg_table[:] = []
for key, pattern in self.repo.ui.configitems('interhg'):
# grab the delimiter from the character after the "s"
unesc = pattern[1]
delim = re.escape(unesc)
# identify portions of the pattern, taking care to avoid escaped
# delimiters. the replace format and flags are optional, but delimiters
# are required.
match = re.match(r'^s%s(.+)(?:(?<=\\\\)|(?<!\\))%s(.*)%s([ilmsux])*$'
% (delim, delim, delim), pattern)
if not match:
self.repo.ui.warn("interhg: invalid pattern for %s: %s\n"
% (key, pattern))
continue
# we need to unescape the delimiter for regexp and format
delim_re = re.compile(r'(?<!\\)\\%s' % delim)
regexp = delim_re.sub(unesc, match.group(1))
format = delim_re.sub(unesc, match.group(2))
# the pattern allows for 6 regexp flags, so set them if necessary
flagin = match.group(3)
flags = 0
if flagin:
for flag in flagin.upper():
flags |= re.__dict__[flag]
try:
regexp = re.compile(regexp, flags)
interhg_table.append((regexp, format))
except re.error:
self.repo.ui.warn("interhg: invalid regexp for %s: %s\n"
% (key, regexp))
return orig_refresh(self)
hgweb_mod.hgweb.refresh = interhg_refresh