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Mini Shell
import os
from typing import Tuple, Type, Union
from uaclient import api, messages, system
from uaclient.apt import APT_KEYS_DIR, DEB822_REPO_FILE_CONTENT, KEYRINGS_DIR
from uaclient.defaults import ESM_APT_ROOTDIR
from uaclient.entitlements import repo
from uaclient.entitlements.base import UAEntitlement
from uaclient.entitlements.entitlement_status import CanDisableFailure
from uaclient.util import set_filename_extension
class ESMBaseEntitlement(repo.RepoEntitlement):
help_doc_url = messages.urls.ESM_HOME_PAGE
@property
def dependent_services(self) -> Tuple[Type[UAEntitlement], ...]:
from uaclient.entitlements.ros import (
ROSEntitlement,
ROSUpdatesEntitlement,
)
return (ROSUpdatesEntitlement, ROSEntitlement)
def _perform_enable(self, progress: api.ProgressWrapper) -> bool:
from uaclient.timer.update_messaging import update_motd_messages
enable_performed = super()._perform_enable(progress)
if enable_performed:
update_motd_messages(self.cfg)
self.disable_local_esm_repo()
return enable_performed
def setup_local_esm_repo(self) -> None:
series = system.get_release_info().series
# Ugly? Yes, but so is python < 3.8 without removeprefix
assert self.name.startswith("esm-")
esm_name = self.name[len("esm-") :]
sources_repo_filename = set_filename_extension(
os.path.normpath(
ESM_APT_ROOTDIR + self.repo_file,
),
"sources",
)
list_repo_filename = set_filename_extension(
os.path.normpath(
ESM_APT_ROOTDIR + self.repo_file,
),
"list",
)
# No need to create if any format already present
if os.path.exists(sources_repo_filename) or os.path.exists(
list_repo_filename
):
return
esm_url = "https://esm.ubuntu.com/{name}/ubuntu".format(name=esm_name)
suites = "{series}-{name}-security {series}-{name}-updates".format(
series=series, name=esm_name
)
# When writing, use the sources format by default
system.write_file(
sources_repo_filename,
DEB822_REPO_FILE_CONTENT.format(
url=esm_url,
suites=suites,
keyrings_dir=KEYRINGS_DIR,
keyring_file=self.repo_key_file,
deb_src="",
),
)
def disable_local_esm_repo(self) -> None:
keyring_file = os.path.normpath(
ESM_APT_ROOTDIR + APT_KEYS_DIR + self.repo_key_file
)
system.ensure_file_absent(keyring_file)
repo_filename = os.path.normpath(
ESM_APT_ROOTDIR + self.repo_file,
)
# Remove any instance of the file present in the folder
system.ensure_file_absent(
set_filename_extension(repo_filename, "sources")
)
system.ensure_file_absent(
set_filename_extension(repo_filename, "list")
)
class ESMAppsEntitlement(ESMBaseEntitlement):
origin = "UbuntuESMApps"
name = "esm-apps"
title = messages.ESM_APPS_TITLE
description = messages.ESM_APPS_DESCRIPTION
help_text = messages.ESM_APPS_HELP_TEXT
repo_key_file = "ubuntu-pro-esm-apps.gpg"
def disable(
self, progress: api.ProgressWrapper
) -> Tuple[bool, Union[None, CanDisableFailure]]:
from uaclient.timer.update_messaging import update_motd_messages
disable_performed, fail = super().disable(progress)
if disable_performed:
update_motd_messages(self.cfg)
if system.is_current_series_lts():
self.setup_local_esm_repo()
return disable_performed, fail
class ESMInfraEntitlement(ESMBaseEntitlement):
name = "esm-infra"
origin = "UbuntuESM"
title = messages.ESM_INFRA_TITLE
description = messages.ESM_INFRA_DESCRIPTION
help_text = messages.ESM_INFRA_HELP_TEXT
repo_key_file = "ubuntu-pro-esm-infra.gpg"
def disable(
self, progress: api.ProgressWrapper
) -> Tuple[bool, Union[None, CanDisableFailure]]:
from uaclient.timer.update_messaging import update_motd_messages
disable_performed, fail = super().disable(progress)
if disable_performed:
update_motd_messages(self.cfg)
if system.is_current_series_active_esm():
self.setup_local_esm_repo()
return disable_performed, fail
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