hgext/interhg.py
author Dirkjan Ochtman <dirkjan@ochtman.nl>
Sun, 21 Jun 2009 17:35:04 +0200
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permissions -rw-r--r--
extensions: remove now-useless pathdirs() function
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# interhg.py - interhg
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#
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# Copyright 2007 OHASHI Hideya <ohachige@gmail.com>
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#
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# Contributor(s):
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#   Edward Lee <edward.lee@engineering.uiuc.edu>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2, incorporated herein by reference.
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'''expand expressions into changelog and summaries
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This extension allows the use of a special syntax in summaries,
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which will be automatically expanded into links or any other
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arbitrary expression, much like InterWiki does.
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A few example patterns (link to bug tracking, etc.) that may
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be used in your hgrc:
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  [interhg]
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  issues = s!issue(\d+)!<a href="http://bts/issue\1">issue\1<\/a>!
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  bugzilla = s!((?:bug|b=|(?=#?\d{4,}))(?:\s*#?)(\d+))!<a..=\2">\1</a>!i
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  boldify = s/(^|\s)#(\d+)\b/ <b>#\2<\/b>/
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'''
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import re
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from mercurial.hgweb import hgweb_mod
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from mercurial import templatefilters, extensions
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from mercurial.i18n import _
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orig_escape = templatefilters.filters["escape"]
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interhg_table = []
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def interhg_escape(x):
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    escstr = orig_escape(x)
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    for regexp, format in interhg_table:
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        escstr = regexp.sub(format, escstr)
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    return escstr
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templatefilters.filters["escape"] = interhg_escape
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def interhg_refresh(orig, self):
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    interhg_table[:] = []
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    for key, pattern in self.repo.ui.configitems('interhg'):
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        # grab the delimiter from the character after the "s"
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        unesc = pattern[1]
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        delim = re.escape(unesc)
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        # identify portions of the pattern, taking care to avoid escaped
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        # delimiters. the replace format and flags are optional, but delimiters
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        # are required.
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        match = re.match(r'^s%s(.+)(?:(?<=\\\\)|(?<!\\))%s(.*)%s([ilmsux])*$'
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                         % (delim, delim, delim), pattern)
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        if not match:
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            self.repo.ui.warn(_("interhg: invalid pattern for %s: %s\n")
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                              % (key, pattern))
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            continue
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        # we need to unescape the delimiter for regexp and format
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        delim_re = re.compile(r'(?<!\\)\\%s' % delim)
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        regexp = delim_re.sub(unesc, match.group(1))
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        format = delim_re.sub(unesc, match.group(2))
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        # the pattern allows for 6 regexp flags, so set them if necessary
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        flagin = match.group(3)
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        flags = 0
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        if flagin:
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            for flag in flagin.upper():
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                flags |= re.__dict__[flag]
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        try:
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            regexp = re.compile(regexp, flags)
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            interhg_table.append((regexp, format))
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        except re.error:
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            self.repo.ui.warn(_("interhg: invalid regexp for %s: %s\n")
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                              % (key, regexp))
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    return orig(self)
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extensions.wrapfunction(hgweb_mod.hgweb, 'refresh', interhg_refresh)