diff options
Diffstat (limited to 'DistUpgrade/DistUpgradeControler.py')
| -rw-r--r-- | DistUpgrade/DistUpgradeControler.py | 80 |
1 files changed, 66 insertions, 14 deletions
diff --git a/DistUpgrade/DistUpgradeControler.py b/DistUpgrade/DistUpgradeControler.py index c01b0f97..7dc6c1aa 100644 --- a/DistUpgrade/DistUpgradeControler.py +++ b/DistUpgrade/DistUpgradeControler.py @@ -37,21 +37,43 @@ from gettext import gettext as _ import gettext from DistUpgradeCache import MyCache +class AptCdrom(object): + def __init__(self, view, path): + self.view = view + self.cdrompath = path + + def restoreBackup(self, backup_ext): + " restore the backup copy of the cdroms.list file (*not* sources.list)! " + cdromstate = apt_pkg.Config.Find("Dir::State::cdroms") + if os.path.exists(os.path.join(cdromstate,backup_ext)): + shutil.copy(os.path.join(cdromstate,backup_ext),cdromstate) + # mvo: we don't have to care about restoring the sources.list here because + # aptsources will do this for us anyway + + def add(self, backup_ext=None): + " add a cdrom to apts database " + logging.debug("AptCdrom.add() called with '%s'", self.cdrompath) + # do backup (if needed) of the cdroms.list file + if backup_ext: + cdromstate = apt_pkg.Config.Find("Dir::State::cdroms") + shutl.copy(cdromstate, os.path.join(cdromstate,backup_ext)) + # do the actual work + apt_pkg.Config.Set("Acquire::cdrom::mount",self.cdrompath); + cdrom = apt_pkg.GetCdrom() + # FIXME: add cdrom progress here for the view + progress = CdromProgress() + res = cdrom.Add(progress) + logging.debug("AptCdrom.add() returned: %s" % res) + return res -class DistUpgradePolicy(object): - """ this is a abstract polciy object that allows to implement different upgrade - types (e.g. one for full net upgrades, one for only CDROM upgrades - """ - def __init__(self): - pass - - - + def __nonzero__(self): + """ helper to use this as 'if cdrom:' """ + return self.cdrompath is not None class DistUpgradeControler(object): """ this is the controler that does most of the work """ - def __init__(self, distUpgradeView): + def __init__(self, distUpgradeView, cdromPath=None): gettext.bindtextdomain("update-manager",os.path.join(os.getcwd(),"mo")) gettext.textdomain("update-manager") @@ -59,6 +81,11 @@ class DistUpgradeControler(object): self._view.updateStatus(_("Reading cache")) self.cache = None + # specific for the CDROM based upgrade + self.aptcdrom = AptCdrom(distUpgradeView, cdromPath) + self.useNetwork = True + + # the configuration self.config = DistUpgradeConfig() self.sources_backup_ext = "."+self.config.get("Files","BackupExt") @@ -80,6 +107,24 @@ class DistUpgradeControler(object): def openCache(self): self.cache = MyCache(self._view.getOpCacheProgress()) + def prepare(self): + """ initial cache opening, sanity checking, network checking """ + self.openCache() + if not self.cache.sanityCheck(self._view): + return False + # FIXME: we may try to find out a bit more about the network connection here and ask more + # inteligent questions + if self.aptcdrom: + res = self._view.askYesNoQuestion(_("Fetch data from the network for the upgrade?"), + _("The upgrade can use the network to check " + "the latest updates and to fetch packages that are not on the " + "current CD.\n" + "If you have inexpensive network access you should answer " + "'Yes' here. If networking is expensive for you choose 'No'.") + ) + self.useNetwork = res + logging.debug("useNetwork: '%s' (selected by user)" % res) + return True def rewriteSourcesList(self, mirror_check=True): logging.debug("rewriteSourcesList()") @@ -244,7 +289,7 @@ class DistUpgradeControler(object): logging.debug("Install: %s" % " ".join(inst)) logging.debug("Upgrade: %s" % " ".join(up)) - def doPreUpdate(self): + def doPreUpgrade(self): # FIXME: check out what packages are downloadable etc to # compare the list after the update again self.obsolete_pkgs = self.cache._getObsoletesPkgs() @@ -253,6 +298,9 @@ class DistUpgradeControler(object): logging.debug("Obsolete: %s" % " ".join(self.obsolete_pkgs)) def doUpdate(self): + if not self.useNetwork: + logging.debug("doUpdate() will not use the network because self.useNetwork==false") + return True self.cache._list.ReadMainList() progress = self._view.getFetchProgress() # FIXME: retry here too? just like the DoDistUpgrade? @@ -456,6 +504,7 @@ class DistUpgradeControler(object): def abort(self): """ abort the upgrade, cleanup (as much as possible) """ self.sources.restoreBackup(self.sources_backup_ext) + self.aptcdrom.restoreBackup(self.sources_backup_ext) # generate a new cache self._view.updateStatus(_("Restoring original system state")) self.openCache() @@ -468,16 +517,19 @@ class DistUpgradeControler(object): self._view.updateStatus(_("Checking package manager")) self._view.setStep(1) - self.openCache() - if not self.cache.sanityCheck(self._view): + if not self.prepare(): abort(1) + # add cdrom (if we have one) + if self.aptcdrom: + self.aptcdrom.add(self.sources_backup_ext) + # run a "apt-get update" now if not self.doUpdate(): sys.exit(1) # do pre-upgrade stuff (calc list of obsolete pkgs etc) - self.doPreUpdate() + self.doPreUpgrade() # update sources.list self._view.setStep(2) |