packages/antlion/libs/ota/ota_tools/update_device_ota_tool.py

#!/usr/bin/env python3
#
# Copyright 2022 The Fuchsia Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import logging
import os
import shutil
import tempfile

from antlion import utils
from antlion.libs.ota.ota_tools import ota_tool
from antlion.libs.proc import job

# OTA Packages can be upwards of 1 GB. This may take some time to transfer over
# USB 2.0. A/B devices must also complete the update in the background.
UPDATE_TIMEOUT = 60 * 60
UPDATE_LOCATION = "/data/ota_package/update.zip"


class UpdateDeviceOtaTool(ota_tool.OtaTool):
    """Runs an OTA Update with system/update_engine/scripts/update_device.py."""

    def __init__(self, command):
        super(UpdateDeviceOtaTool, self).__init__(command)

        self.unzip_path = tempfile.mkdtemp()
        utils.unzip_maintain_permissions(self.command, self.unzip_path)

        self.command = os.path.join(self.unzip_path, "update_device.py")

    def update(self, ota_runner):
        logging.info("Forcing adb to be in root mode.")
        ota_runner.android_device.root_adb()
        update_command = "python3 %s -s %s %s" % (
            self.command,
            ota_runner.serial,
            ota_runner.get_ota_package(),
        )
        logging.info(f"Running {update_command}")
        result = job.run(update_command, timeout_sec=UPDATE_TIMEOUT)
        logging.info(f"Output: {result.stdout}")

        logging.info("Rebooting device for update to go live.")
        ota_runner.android_device.reboot(stop_at_lock_screen=True)
        logging.info("Reboot sent.")

    def __del__(self):
        """Delete the unzipped update_device folder before ACTS exits."""
        shutil.rmtree(self.unzip_path)