#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# create-versions-index.py
# ------------------------
#
# Copyright (C) 2008 Jeremie Dimino <jeremie@dimino.org>
#
# This file 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 file 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 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 Street #330, Boston, MA 02111-1307, USA.

'''Outil pour générer la liste des paquets avec leurs version pour le
plugin Rules de bcfg2.'''

__all__ = ["gen_rules"]

import apt, commands
from xml.dom.minidom import Document

def gen_rules(cache):
    '''Création des règles'''
    doc = Document()
    root = doc.createElement("Rule")
    root.setAttribute("priority", "20")
    group = doc.createElement("Group")
    group.setAttribute("name", commands.getoutput("uname -m"))

    for pkg in cache:
        if pkg.candidateVersion:
            pkginfo = doc.createElement("Package")
            pkginfo.setAttribute("name", pkg.name)
            pkginfo.setAttribute("version", pkg.candidateVersion)
            group.appendChild(pkginfo)

    root.appendChild(group)

    return root

if __name__ == "__main__":
    import sys, os, time

    print >>sys.stderr, "Chargement du cache..."
    cache = apt.Cache()
    print >>sys.stderr, "Génération du document XML..."
    print ("<!-- Fichier autogénéré le %s avec %s -->" %
           (time.ctime(), os.path.basename(sys.argv[0])))
    sys.stdout.write(gen_rules(cache).toprettyxml())