releasetools.py

#
# Copyright (C) 2009 The Android Open Source Project
# Copyright (C) 2019 The Mokee Open Source Project
# Copyright (C) 2020-2021 The LineageOS Open Source Project
#
# 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 re

import common


def FullOTA_Assertions(info):
    AddBasebandAssertion(info, info.input_zip)
    return


def IncrementalOTA_Assertions(info):
    AddBasebandAssertion(info, info.input_zip)
    return


def FullOTA_InstallEnd(info):
    OTA_InstallEnd(info)
    return


def IncrementalOTA_InstallEnd(info):
    OTA_InstallEnd(info)
    return


def AddImage(info, basename, dest):
    name = basename
    path = 'IMAGES/' + name
    if path not in info.input_zip.namelist():
        return

    data = info.input_zip.read(path)
    common.ZipWriteStr(info.output_zip, name, data)
    info.script.Print(
        'Patching {} image unconditionally...'.format(dest.split('/')[-1])
    )
    info.script.AppendExtra('package_extract_file("%s", "%s");' % (name, dest))


def OTA_InstallEnd(info):
    AddImage(info, 'dtbo.img', '/dev/block/bootdevice/by-name/dtbo')
    AddImage(info, 'vbmeta.img', '/dev/block/bootdevice/by-name/vbmeta')
    AddImage(
        info, 'vbmeta_system.img', '/dev/block/bootdevice/by-name/vbmeta_system'
    )
    return


def AddBasebandAssertion(info, input_zip):
    android_info = input_zip.open('OTA/android-info.txt')
    for line in android_info.readlines():
        m = re.search(
            r'require\s+version-baseband\s*-\s*(.+)', line.decode('utf-8')
        )
        if m:
            hwc, modem_version, firmware_version = re.split(
                '[=,]', m.group(1).rstrip()
            )
            if len(hwc) and len(modem_version) and len(firmware_version):
                cmd = 'assert(getprop("ro.boot.hwc") == "{0}" && (xiaomi.verify_baseband("{1}") == "1" || abort("ERROR: This package requires firmware from MIUI {2} or newer. Please upgrade firmware and retry!");) || true);'
                info.script.AppendExtra(
                    cmd.format(hwc, modem_version, firmware_version)
                )
    return