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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright (C) 2012+ Jordi Gutiérrez Hermoso <jordigh@octave.org>
# Copyright (C) 2012-2013+ James Shubin
# Written by James Shubin <james@shubin.ca>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# thanks to Jordi for fighting with the xml for me so that I didn't have to :)
# EXAMPLE:
# $ gluster volume --xml info <VOLNAME> | ./xml.py <KEY>
# <VALUE>
import sys
import lxml.etree as etree
if len(sys.argv) != 2:
sys.exit(1)
t = etree.parse(sys.stdin)
r = t.getroot()
v = [x.find('value').text for x in r.findall('.//option') if x.find('name').text == str(sys.argv[1])]
if len(v) == 1:
print v[0]
sys.exit(0)
else: # more than one value found
sys.exit(1)
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