def __init__(self, old_version):
self._scenarios = {}
if isinstance(old_version, OSVersion):
self._old_version = old_version
else:
self._old_version = OSVersion.from_version_string(old_version)
self._mapping()
def __init__(self, old_version):
self._scenarios = {}
if isinstance(old_version, OSVersion):
self._old_version = old_version
else:
self._old_version = OSVersion.from_version_string(old_version)
self._mapping()
def check_disk_space(priority):
'''
Check for available disk space before updating
'''
apt_handle = AptWrapper.get_instance()
mb_free = get_free_space()
required_space = apt_handle.get_required_upgrade_space() + SPACE_BUFFER
# Allowance for installing extra packages in the postupdate scenarios
# during the update to 3.8.0
system_version = get_system_version()
if system_version < OSVersion.from_version_string("Kanux-Beta-3.8.0"):
required_space += UPGRADE_3_8_0_SPACE
required_space = max(required_space, MIN_REQ_SPACE)
if mb_free < required_space:
err_msg = N_("Only {}MB free, at least {}MB is needed.").format(
mb_free, required_space)
return False, err_msg
return True, None
def add_scenario(self, from_version, to_version, func):
from_version = OSVersion.from_version_string(from_version)
to_version = OSVersion.from_version_string(to_version)
self._scenarios[(from_version, to_version)] = func
def add_scenario(self, from_version, to_version, func):
from_version = OSVersion.from_version_string(from_version)
to_version = OSVersion.from_version_string(to_version)
self._scenarios[(from_version, to_version)] = func
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
#
# version.py
#
# Copyright (C) 2018-2019 Kano Computing Ltd.
# License: http://www.gnu.org/licenses/gpl-2.0.txt GNU GPL v2
#
# Fixtures for acertaining the system version
#
import pytest
from kano_updater.os_version import OSVersion
VERSIONS = [
OSVersion(devstage='Beta', version='1.0.3'),
OSVersion(devstage='Beta', version='1.1.0'),
OSVersion(devstage='Beta', version='1.1.1'),
OSVersion(devstage='Beta', version='1.2.0'),
OSVersion(devstage='Beta', version='1.2.1'),
OSVersion(devstage='Beta', version='1.2.2'),
OSVersion(devstage='Beta', version='1.2.3'),
OSVersion(devstage='Beta', version='1.2.4'),
OSVersion(devstage='Beta', version='1.2.5'),
OSVersion(devstage='Beta', version='1.3.1'),
OSVersion(devstage='Beta', version='1.3.2'),
OSVersion(devstage='Beta', version='1.3.3'),
OSVersion(devstage='Beta', version='1.3.4'),
OSVersion(devstage='Beta', version='2.0.0'),
OSVersion(devstage='Beta', version='2.0.1'),
OSVersion(devstage='Beta', version='2.1.0'),
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)
