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/*
* Copyright (C) 2019 The Android 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.
*/
#pragma once
#include "adb_unique_fd.h"
#include "fastdeploy/proto/ApkEntry.pb.h"
/**
* Helper class that mirrors the PatchUtils from deploy agent.
*/
class PatchUtils {
public:
/**
* This function takes the dump of Central Directly and builds the APKMetaData required by the
* patching algorithm. The if this function has an error a string is printed to the terminal and
* exit(1) is called.
*/
static com::android::fastdeploy::APKMetaData GetDeviceAPKMetaData(
const com::android::fastdeploy::APKDump& apk_dump);
/**
* This function takes a local APK file and builds the APKMetaData required by the patching
* algorithm. The if this function has an error a string is printed to the terminal and exit(1)
* is called.
*/
static com::android::fastdeploy::APKMetaData GetHostAPKMetaData(const char* file);
/**
* Writes a fixed signature string to the header of the patch.
*/
static void WriteSignature(android::base::borrowed_fd output);
/**
* Writes an int64 to the |output| reversing the bytes.
*/
static void WriteLong(int64_t value, android::base::borrowed_fd output);
/**
* Writes string to the |output|.
*/
static void WriteString(const std::string& value, android::base::borrowed_fd output);
/**
* Copy |amount| of data from |input| to |output|.
*/
static void Pipe(android::base::borrowed_fd input, android::base::borrowed_fd output,
size_t amount);
};
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