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# 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 version 2 or any later version.
'''expand expressions into changelog and summaries
This extension allows the use of a special syntax in summaries, which
will be automatically expanded into links or any other arbitrary
expression, much like InterWiki does.
A few example patterns (link to bug tracking, etc.) that may be used
in your hgrc::
[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>!
'''
import re
from mercurial.hgweb import hgweb_mod
from mercurial import templatefilters, extensions
from mercurial.i18n import _
interhg_table = []
def uisetup(ui):
orig_escape = templatefilters.filters["escape"]
def interhg_escape(x):
escstr = orig_escape(x)
for regexp, format in interhg_table:
escstr = regexp.sub(format, escstr)
return escstr
templatefilters.filters["escape"] = interhg_escape
def interhg_refresh(orig, self, *args, **kwargs):
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(self, *args, **kwargs)
extensions.wrapfunction(hgweb_mod.hgweb, 'refresh', interhg_refresh)
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