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#!/usr/bin/python2.4
import pygtk
pygtk.require('2.0')
import gtk
import gtk.gdk
import gtk.glade
import apt
from UpdateManager.Common.SimpleGladeApp import SimpleGladeApp
from UpdateManager.GtkProgress import GtkOpProgress
from SoftwareProperties.aptsources import SourcesList, SourceEntry
from gettext import gettext as _
class DistUpgradeProgress(object):
pass
class DistUpgradeView(object):
" abstraction for the upgrade view "
def __init__(self):
pass
def getOpCacheProgress(self):
" return a OpProgress() subclass for the given graphic"
return apt.progress.OpProgress()
def updateStatus(self, msg):
""" update the current status of the distUpgrade based
on the current view
"""
pass
def askYesNoQuestion(self,msg):
pass
class GtkDistUpgradeView(DistUpgradeView,SimpleGladeApp):
" gtk frontend of the distUpgrade tool "
def __init__(self):
# FIXME: i18n must be somewhere relative do this dir
SimpleGladeApp.__init__(self, "DistUpgrade.glade",
None, domain="update-manager")
self._opCacheProgress = GtkOpProgress(self.progressbar_cache)
def getOpCacheProgress(self):
return self._opCacheProgress
def updateStatus(self, msg):
self.label_status = "<b>%s</b>" % msg
class DistUpgradeControler(object):
def __init__(self, distUpgradeView):
self._view = distUpgradeView
def sanityCheck(self):
pass
def updateSourcesList(self, fromDist, to):
sources = SourcesList()
sources.backup()
fromDists = [fromDist,
fromDist+"-security",
fromDist+"-updates",
fromDist+"-backports"
]
for entry in sources:
# check if it's a mirror (or offical site)
if sources.is_mirror("http://archive.ubuntu.com/ubuntu",entry.uri):
if entry.dist in fromDists:
entry.dist = to
else:
# disable all entries that are official but don't
# point to the "from" dist
entry.disabled = True
else:
# disable non-official entries that point to dist
if entry.dist == fromDist:
entry.disabled = True
sources.save()
def breezyUpgrade(self):
# sanity check (check for ubuntu-desktop, brokenCache etc)
self._view.updateStatus(_("Checking the system"))
self.sanityCheck()
# update sources.list
self._view.updateStatus(_("Updating repository information"))
self.updateSourcesList(fromDist="hoary",to="breezy")
# then update the package index files
# then open the cache
self._view.updateStatus(_("Reading cache"))
self._cache = apt.Cache(self._view.getOpCacheProgress())
# do pre-upgrade stuff
# calc the dist-upgrade and see if the removals are ok/expected
# do the dist-upgrade
# do post-upgrade stuff
# done, ask for reboot
def run(self):
self.breezyUpgrade()
if __name__ == "__main__":
view = GtkDistUpgradeView()
app = DistUpgradeControler(view)
app.run()
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