Limnoria/plugins/Debian.py

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#!/usr/bin/env python
###
# Copyright (c) 2002, Jeremiah Fincher
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
# this list of conditions, and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions, and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the author of this software nor the name of
# contributors to this software may be used to endorse or promote products
# derived from this software without specific prior written consent.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
###
"""
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This is a module to contain Debian-specific commands.
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"""
from baseplugin import *
import re
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import gzip
import popen2
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import random
import os.path
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import urllib2
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from itertools import imap, ifilter
import conf
import utils
import privmsgs
import callbacks
def configure(onStart, afterConnect, advanced):
# This will be called by setup.py to configure this module. onStart and
# afterConnect are both lists. Append to onStart the commands you would
# like to be run when the bot is started; append to afterConnect the
# commands you would like to be run when the bot has finished connecting.
from questions import expect, anything, something, yn
onStart.append('load Debian')
if not utils.findBinaryInPath('zegrep'):
if not advanced:
print 'I can\'t find zegrep in your path. This is necessary '
print 'to run the debfile command. I\'ll disable this command '
print 'now. When you get zegrep in your path, use the command '
print '"enable debfile" to re-enable the command.'
onStart.append('disable debfile')
else:
print 'I can\'t find zegrep in your path. If you want to run the '
print 'debfile command with any sort of expediency, you\'ll need '
print 'it. You can use a python equivalent, but it\'s about two '
print 'orders of magnitude slower. THIS MEANS IT WILL TAKE AGES '
print 'TO RUN THIS COMMAND. Don\'t do this.'
if yn('Do you want to use a Python equivalent of zegrep?') == 'y':
onStart.append('usepythonzegrep')
else:
print 'I\'ll disable debfile now.'
onStart.append('disable debfile')
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example = utils.wrapLines("""
<jemfinch> @list Debian
<supybot> debfile, debversion, usepythonzegrep
<jemfinch> @debversion python
<supybot> Total matches: 3, shown: 3. python 2.1.3-3.2 (stable), python 2.2.3-3 (testing), python 2.3-4 (unstable)
<jemfinch> @debfile /usr/bin/python
<supybot> python/python, devel/crystalspace-dev, python/python1.5, python/python2.1, python/python2.1-popy, python/python2.2, python/python2.2-popy, python/python2.3, python/python2.3-popy, devel/sloccount, graphics/pythoncad, mail/pms
""")
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class Debian(callbacks.Privmsg, PeriodicFileDownloader):
threaded = True
periodicFiles = {
'Contents-i386.gz': ('ftp://ftp.us.debian.org/'
'debian/dists/unstable/Contents-i386.gz',
86400, None)
}
contents = os.path.join(conf.dataDir, 'Contents-i386.gz')
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def __init__(self):
callbacks.Privmsg.__init__(self)
PeriodicFileDownloader.__init__(self)
self.usePythonZegrep = False
def usepythonzegrep(self, irc, msg, args):
"""takes no arguments"""
self.usePythonZegrep = not self.usePythonZegrep
irc.reply(msg, conf.replySuccess)
def debfile(self, irc, msg, args):
self.getFile('Contents-i386.gz')
# Make sure it's anchored, make sure it doesn't have a leading slash
# (the filenames don't have leading slashes, and people may not know
# that).
regexp = privmsgs.getArgs(args).lstrip('^/')
regexp = '^' + regexp
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try:
r = re.compile(regexp, re.I)
except re.error, e:
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irc.error(msg, e)
return
if self.usePythonZegrep:
fd = gzip.open(self.contents)
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fd = ifilter(imap(lambda line: r.search(line), fd))
(fd, _) = popen2.popen2(['zegrep', regexp, self.contents])
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packages = []
for line in fd:
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try:
(filename, package) = line[:-1].split()
if filename == 'FILE':
# This is the last line before the actual files.
continue
except ValueError: # Unpack list of wrong size.
continue # We've not gotten to the files yet.
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if r.search(filename):
packages.extend(package.split(','))
if len(packages) > 40:
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irc.error(msg, 'More than 40 results returned, ' \
'please be more specific.')
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return
if len(packages) == 0:
irc.reply(msg, 'I found no packages with that file.')
else:
irc.reply(msg, ircutils.privmsgPayload(packages, ', '))
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_debreflags = re.DOTALL | re.IGNORECASE
_debpkgre = re.compile(r'<a.*>(.*?)</a>', _debreflags)
_debbrre = re.compile(r'<td align="center">(\S+)\s*</?td>', _debreflags)
_debtablere = re.compile(r'<table\s*[^>]*>(.*?)</table>', _debreflags)
_debnumpkgsre = re.compile(r'out of total of (\d+)', _debreflags)
_debBranches = ('stable', 'testing', 'unstable', 'experimental')
def debversion(self, irc, msg, args):
"""<package name> [stable|testing|unstable|experimental]
Returns the current version(s) of a Debian package in the given branch
(if any, otherwise all available ones are displayed).
"""
if args and args[-1] in self._debBranches:
branch = args.pop()
else:
branch = 'all'
if not args:
irc.error(msg, 'You must give a package name.')
responses = []
numberOfPackages = 0
for package in args:
fd = urllib2.urlopen('http://packages.debian.org/cgi-bin/' \
'search_packages.pl?' \
'keywords=%s&searchon=names&' \
'version=%s&release=all' % \
(package, branch))
html = fd.read()
fd.close()
m = self._debnumpkgsre.search(html)
if m:
numberOfPackages = m.group(1)
m = self._debtablere.search(html)
if m is None:
responses.append('No package found for: %s (%s)' % \
(package, branch))
else:
tableData = m.group(1)
rows = tableData.split('</TR>')
for row in rows:
pkgMatch = self._debpkgre.search(row)
brMatch = self._debbrre.search(row)
if pkgMatch and brMatch:
s = '%s (%s)' % (pkgMatch.group(1), brMatch.group(1))
responses.append(s)
random.shuffle(responses)
ircutils.shrinkList(responses, ', ', 400)
s = 'Total matches: %s, shown: %s. %s' % \
(numberOfPackages, len(responses), ', '.join(responses))
irc.reply(msg, s)
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Class = Debian
# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78: