def install_ind_package(progress, package):
status = UpdaterStatus.get_instance()
# install an independent package.
previous_state = status.state
# Allow installing only if the updater is in certain safe states.
if status.state not in [UpdaterStatus.NO_UPDATES,
UpdaterStatus.UPDATES_AVAILABLE,
UpdaterStatus.UPDATES_INSTALLED]:
msg = "The install is already running"
logger.warn(msg)
progress.abort(msg)
return False
if package not in status.updatable_independent_packages:
msg = "tried to install non-independent package {} using update_ind_pkg".format(package)
logger.warn(msg)
progress.abort(msg)
return False
status.state = UpdaterStatus.INSTALLING_INDEPENDENT
status.save()
update_sources_phase = 'updating-sources'
installing_idp_phase = 'installing-idp-package'
progress.split(
Phase(
update_sources_phase,
_("Updating apt sources"),
10
),
Phase(
installing_idp_phase,
_("Installing independent package"),
90
)
)
progress.start(update_sources_phase)
apt_handle.update(progress)
progress.start(installing_idp_phase)
apt_handle.upgrade(package, progress)
status.state = previous_state
status.last_update = int(time.time())
# always check independent packages as NONE as urgent updates to
# these packages are dealt with by the main updater
status.updatable_independent_packages = get_ind_packages(Priority.NONE)
status.is_scheduled = False
status.save()
progress.finish(_("Update completed"))
return True
def install_ind_package(progress, package):
status = UpdaterStatus.get_instance()
# install an independent package.
previous_state = status.state
# Allow installing only if the updater is in certain safe states.
if status.state not in [
UpdaterStatus.NO_UPDATES, UpdaterStatus.UPDATES_AVAILABLE,
UpdaterStatus.UPDATES_INSTALLED
]:
msg = "The install is already running"
logger.warn(msg)
progress.abort(msg)
return False
if package not in status.updatable_independent_packages:
msg = "tried to install non-independent package {} using update_ind_pkg".format(
package)
logger.warn(msg)
progress.abort(msg)
return False
status.state = UpdaterStatus.INSTALLING_INDEPENDENT
status.save()
update_sources_phase = 'updating-sources'
installing_idp_phase = 'installing-idp-package'
progress.split(
Phase(update_sources_phase, _("Updating apt sources"), 10),
Phase(installing_idp_phase, _("Installing independent package"), 90))
progress.start(update_sources_phase)
apt_handle.update(progress)
progress.start(installing_idp_phase)
apt_handle.upgrade(package, progress)
status.state = previous_state
status.last_update = int(time.time())
# always check independent packages as NONE as urgent updates to
# these packages are dealt with by the main updater
status.updatable_independent_packages = get_ind_packages(Priority.NONE)
status.is_scheduled = False
status.save()
progress.finish(_("Update completed"))
return True
def do_install(progress, status):
status.state = UpdaterStatus.INSTALLING_UPDATES
status.save()
progress.split(
Phase('init', _('Starting Update'), 10, is_main=True),
Phase('updating-itself', _('Updating Itself'), 10, is_main=True),
Phase('preupdate',
_('Running The Preupdate Scripts'),
10,
is_main=True),
Phase('updating-pip-packages',
_('Updating Pip Packages'),
15,
is_main=True),
Phase('updating-deb-packages',
_('Updating Deb Packages'),
15,
is_main=True),
Phase('postupdate',
_('Running The Postupdate Scripts'),
10,
is_main=True),
Phase('aux-tasks', 'Performing auxiliary tasks', 10, is_main=True))
progress.start('init')
apt_handle.clear_cache()
apt_handle.fix_broken(progress)
# determine the versions (from and to)
system_version = OSVersion.from_version_file(SYSTEM_VERSION_FILE)
msg = "Upgrading from {} to {}".format(system_version, TARGET_VERSION)
logger.info(msg)
# set up the scenarios and check whether they cover updating
# from this version
preup = PreUpdate(system_version)
postup = PostUpdate(system_version)
if not (preup.covers_update() and postup.covers_update()):
title = _('Unfortunately, your version of Kano OS is too old '
'to be updated through the updater.')
description = _('You will need to download the image of the '
'OS and reflash your SD card.')
msg = "{}: {}".format(title, description)
logger.error("Updating from a version that is no longer supported" + \
"()".format(system_version))
progress.error(msg)
raise InstallError(msg)
old_updater = apt_handle.get_package('kano-updater').installed.version
progress.start('updating-itself')
apt_handle.upgrade('kano-updater', progress)
# relaunch if the updater has changed
new_updater = apt_handle.get_package('kano-updater')
if old_updater != new_updater.installed.version:
# Remove the installation in progress status so it doesn't
# block the start of the new instance.
status.state = UpdaterStatus.UPDATES_DOWNLOADED
status.save()
logger.info(_('The updater has been updated, relaunching.'))
progress.relaunch()
return False
progress.start('preupdate')
try:
preup.run()
except Exception as e:
logger.error('The pre-update scenarios failed.')
logger.error(str(e))
progress.abort(_('The pre-update tasks failed.'))
raise
logger.debug('Updating pip packages')
progress.start('updating-pip-packages')
install_pip_packages(progress)
logger.debug('Updating deb packages')
progress.start('updating-deb-packages')
install_deb_packages(progress)
progress.start('postupdate')
try:
postup.run()
except Exception as e:
logger.error('The post-update scenarios failed.')
logger.error(str(e))
progress.abort(_('The post-update tasks failed.'))
raise
bump_system_version()
# We don't care too much when these fail
progress.start('aux-tasks')
run_aux_tasks(progress)
status.state = UpdaterStatus.UPDATES_INSTALLED
status.last_update = int(time.time())
status.save()
progress.finish('Update completed')
return True
def install_standard(progress, status):
progress.split(
Phase(
'init',
_("Starting Update"),
10,
is_main=True
),
Phase(
'updating-itself',
_("Updating Itself"),
10,
is_main=True
),
Phase(
'preupdate',
_("Running The Preupdate Scripts"),
10,
is_main=True
),
Phase(
'updating-pip-packages',
_("Updating Pip Packages"),
15,
is_main=True
),
Phase(
'updating-deb-packages',
_("Updating Deb Packages"),
15,
is_main=True
),
Phase(
'postupdate',
_("Running The Postupdate Scripts"),
10,
is_main=True
),
Phase(
'aux-tasks',
_("Performing auxiliary tasks"),
10,
is_main=True
)
)
progress.start('init')
apt_handle.clear_cache()
apt_handle.fix_broken(progress)
# determine the versions (from and to)
system_version = OSVersion.from_version_file(SYSTEM_VERSION_FILE)
msg = "Upgrading from {} to {}".format(system_version, TARGET_VERSION)
logger.info(msg)
# set up the scenarios and check whether they cover updating
# from this version
preup = PreUpdate(system_version)
postup = PostUpdate(system_version)
if not (preup.covers_update() and postup.covers_update()):
title = _("Unfortunately, your version of Kano OS is too old " \
"to be updated through the updater.")
description = _("You will need to download the image of the " \
"OS and reflash your SD card.")
msg = "{}: {}".format(title, description)
logger.error("Updating from a version that is no longer supported ({})"
.format(system_version))
progress.fail(msg)
raise InstallError(msg)
old_updater = apt_handle.get_package('kano-updater').installed.version
progress.start('updating-itself')
apt_handle.upgrade('kano-updater', progress)
# relaunch if the updater has changed
new_updater = apt_handle.get_package('kano-updater')
if old_updater != new_updater.installed.version:
# Remove the installation in progress status so it doesn't
# block the start of the new instance.
status.state = UpdaterStatus.UPDATES_DOWNLOADED
status.save()
logger.info("The updater has been updated, relaunching.")
progress.relaunch()
return False
progress.start('preupdate')
try:
preup.run()
except Exception as err:
logger.error("The pre-update scenarios failed.")
logger.error(err.encode('utf-8'))
progress.abort("The pre-update tasks failed.")
raise
logger.debug("Updating pip packages")
progress.start('updating-pip-packages')
install_pip_packages(progress)
logger.debug("Updating deb packages")
progress.start('updating-deb-packages')
install_deb_packages(progress)
progress.start('postupdate')
try:
postup.run()
except Exception as err:
logger.error("The post-update scenarios failed.")
logger.error(err.encode('utf-8'))
progress.abort("The post-update tasks failed.")
raise
bump_system_version()
# We don't care too much when these fail
progress.start('aux-tasks')
run_aux_tasks(progress)
