Mercurial > hg
view hgext/interhg.py @ 18604:a1141f04e368
manifest: use a size 3 LRU cache to store parsed manifests
Previously, the manifest cache would store the last manifest parsed. We could
run into situations with operations like update where we would try parsing the
manifest for a revision r1, then r2, then r1 again. This increases the cache
size to 3 to avoid that bit of performance fragility.
author | Siddharth Agarwal <sid0@fb.com> |
---|---|
date | Sat, 09 Feb 2013 15:43:02 +0000 |
parents | 38caf405d010 |
children |
line wrap: on
line source
# 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 _ testedwith = 'internal' 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)