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#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 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 Library General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
#
# Parser library for One Click Install metadata XML
#
# @author Izhar Firdaus <izhar@fedoraproject.com>
from xml.etree.ElementTree import ElementTree,Element
import re
from chitin.utils import attrsfilter,get_child_value
from chitin import ocins
class Metapackage:
"""
Parser class for Chitin Metapackage XML.
"""
def __init__(self,xmlfile,distversion):
"""
@param xmlfile One Click Install XML file
@param distversion A string containing '$distro $release'
@return None
"""
self.element = ElementTree(Element('metapackage'),open(xmlfile))
self.distversion = distversion
def getGroup(self):
"""
Function to get Group element from Chitin Metadata
@return 'group' Element of the current distversion
"""
for group in self.element.getiterator('{%s}%s' % (ocins,'group')):
if group.attrib['distversion'].lower() == self.distversion.lower():
return group
def getRepositories(self,*args,**kwargs):
"""
Function to get 'repository' elements from the current distversion group
@kwargs Keyword arguments for filtering results
@return A list containing a filtered list of 'repository' Elements
"""
repos = self.getGroup().getiterator('{%s}%s' % (ocins,'repository'))
return attrsfilter(repos,kwargs)
def getProducts(self,*args,**kwargs):
"""
Function to get 'product' elements from the current distversion group
@kwargs Keyword arguments for filtering results
@return A list containing a filtered list of 'product' Elements
"""
products = self.getGroup().getiterator('{%s}%s' % (ocins,'product'))
return attrsfilter(products,kwargs)
def getRepoURL(self,reponame,type=None):
"""
Function to get 'url' values from current distversion group, and requested reponame
@param reponame The repository name
@return A list of URLs from the requested repository, sorted higher score first
"""
repos = self.getRepositories()
urls = []
for r in repos:
if get_child_value(r,'name').lower() == reponame.lower():
for url in r.getiterator('{%s}%s' % (ocins,'url')):
priority = 0
if type:
if not url.attrib.has_key('type'): continue
if not url.attrib['type'].lower() == type.lower(): continue
if url.attrib.has_key('score'): priority = int(url.attrib['score'])
urls.append((url.text.strip(),priority))
def sorturl(x,y):
if x[1] <= y[1]:
return +1
else:
return -1
urls.sort(sorturl)
return [ url[0] for url in urls ]
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