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#!/usr/bin/env python
# DistInfo.py - simple parser for a xml-based metainfo file
#
# Copyright (c) 2005 Gustavo Noronha Silva
#
# Author: Gustavo Noronha Silva <kov@debian.org>
#
# 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 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
import os
import gettext
from os import getenv
import ConfigParser
import string
_ = gettext.gettext
class Suite:
def __init__(self):
self.name = None
self.child = False
self.match_name = None
self.description = None
self.base_uri = None
self.type = None
self.components = {}
self.children = []
self.match_uri = None
self.valid_mirrors = []
self.distribution = None
self.available = True
class Component:
def __init__(self):
self.name = ""
self.description = ""
self.description_long = ""
class DistInfo:
def __init__(self,
dist = None,
base_dir = "/usr/share/update-manager/channels"):
self.metarelease_uri = ''
self.suites = []
if not dist:
pipe = os.popen("lsb_release -i -s")
dist = pipe.read().strip()
pipe.close()
del pipe
self.dist = dist
dist_fname = "%s/%s.info" % (base_dir, dist)
dist_file = open (dist_fname)
if not dist_file:
return
suite = None
component = None
for line in dist_file:
tokens = line.split (':', 1)
if len (tokens) < 2:
continue
field = tokens[0].strip ()
value = tokens[1].strip ()
if field == 'ChangelogURI':
self.changelogs_uri = _(value)
elif field == 'MetaReleaseURI':
self.metarelease_uri = value
elif field == 'Suite':
if suite:
if component:
suite.components["%s" % component.name] = \
(component.description,
component.description_long)
component = None
self.suites.append (suite)
suite = Suite ()
suite.name = value
suite.distribution = dist
suite.match_name = "^%s$" % value
elif field == 'MatchName':
suite.match_name = value
elif field == 'ParentSuite':
suite.child = True
for nanny in self.suites:
if nanny.name == value:
nanny.children.append(suite)
# reuse some properties of the parent suite
if suite.match_uri == None:
suite.match_uri = nanny.match_uri
if suite.valid_mirrors == None:
suite.valid_mirrors = nanny.valid_mirrors
if suite.base_uri == None:
suite.base_uri = nanny.base_uri
elif field == 'Available':
suite.available = value
elif field == 'RepositoryType':
suite.type = value
elif field == 'BaseURI':
suite.base_uri = value
suite.match_uri = value
elif field == 'MatchURI':
suite.match_uri = value
elif field == 'MirrorsFile':
if os.path.exists(value):
suite.valid_mirrors = filter(lambda s:
((s != "") and
(not s.startswith("#"))),
map(string.strip,
open(value)))
else:
print "WARNING: can't read '%s'" % value
elif field == 'Description':
suite.description = _(value)
elif field == 'Component':
if component:
suite.components["%s" % component.name] = \
(component.description,
component.description_long)
component = Component ()
component.name = value
elif field == 'CompDescription':
component.description = _(value)
elif field == 'CompDescriptionLong':
component.description_long = _(value)
if suite:
if component:
suite.components["%s" % component.name] = \
(component.description,
component.description_long)
component = None
self.suites.append (suite)
suite = None
if __name__ == "__main__":
d = DistInfo ("Ubuntu", "../../data/channels")
print d.changelogs_uri
for suite in d.suites:
print "\nSuite: %s" % suite.name
print "Desc: %s" % suite.description
print "BaseURI: %s" % suite.base_uri
print "MatchURI: %s" % suite.match_uri
print "Mirrors: %s" % suite.valid_mirrors
for component in suite.components:
print " %s - %s - %s - %s" % (component,
suite.components[component][0],
suite.components[component][1])
for child in suite.children:
print " %s" % child.description
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