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58 lines
2.1 KiB
58 lines
2.1 KiB
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include "adb_unique_fd.h"
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#include "fastdeploy/proto/ApkEntry.pb.h"
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/**
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* Helper class that mirrors the PatchUtils from deploy agent.
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*/
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class PatchUtils {
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public:
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/**
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* This function takes the dump of Central Directly and builds the APKMetaData required by the
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* patching algorithm. The if this function has an error a string is printed to the terminal and
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* exit(1) is called.
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*/
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static com::android::fastdeploy::APKMetaData GetDeviceAPKMetaData(
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const com::android::fastdeploy::APKDump& apk_dump);
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/**
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* This function takes a local APK file and builds the APKMetaData required by the patching
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* algorithm. The if this function has an error a string is printed to the terminal and exit(1)
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* is called.
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*/
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static com::android::fastdeploy::APKMetaData GetHostAPKMetaData(const char* file);
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/**
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* Writes a fixed signature string to the header of the patch.
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*/
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static void WriteSignature(android::base::borrowed_fd output);
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/**
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* Writes an int64 to the |output| reversing the bytes.
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*/
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static void WriteLong(int64_t value, android::base::borrowed_fd output);
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/**
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* Writes string to the |output|.
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*/
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static void WriteString(const std::string& value, android::base::borrowed_fd output);
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/**
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* Copy |amount| of data from |input| to |output|.
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*/
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static void Pipe(android::base::borrowed_fd input, android::base::borrowed_fd output,
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size_t amount);
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};
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