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This is a binary patching and incremental downloading tool, similar to rsync or zsync. It aims to improve the large binary download processes that previously were served by robocopy (i.e. full packages produced by the build farm). The original code can be found in `//depot/usr/yuriy.odonnell/unsync`. This commit is a branch from the original location to preserve history. While the codebase is designed to be self-contained and does not depend on any engine libraries, it mostly follows the UE coding guidelines and can be built with UBT. Currently only Windows is supported, however the tool is expected to also work on Mac and Linux in the future. #rb Martin.Ridgers #preflight skip [CL 18993571 by Yuriy ODonnell in ue5-main branch]
104 lines
3.1 KiB
C++
104 lines
3.1 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "UnsyncCmdSync.h"
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#include "UnsyncFile.h"
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#include "UnsyncProxy.h"
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namespace unsync {
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int32 // TODO: return a TResult
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CmdSync(const FCmdSyncOptions& Options)
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{
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std::error_code ErrorCode = {};
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fs::path ResolvedSource = Options.Filter ? Options.Filter->Resolve(Options.Source) : Options.Source;
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UNSYNC_VERBOSE(L"Sync source: '%ls'", Options.Source.wstring().c_str());
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UNSYNC_VERBOSE(L"-- resolved: '%ls'", ResolvedSource.wstring().c_str());
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UNSYNC_VERBOSE(L"Sync target: '%ls'", Options.Target.wstring().c_str());
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const bool bSourcePathExists = fs::exists(ResolvedSource, ErrorCode);
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const bool bSourceIsDirectory = bSourcePathExists && unsync::bDirectory(ResolvedSource);
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const bool bSourceIsManifestHash = !bSourcePathExists && LooksLikeHash160(Options.Source.native());
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bool bSourceFileSystemRequired = !bSourceIsManifestHash;
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if (!Options.SourceManifestOverride.empty())
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{
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UNSYNC_VERBOSE(L"Manifest override: %ls", Options.SourceManifestOverride.wstring().c_str());
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if (Options.Remote.IsValid() && Options.bQuickSourceValidation)
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{
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bSourceFileSystemRequired = false;
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}
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}
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UNSYNC_VERBOSE(L"Source directory access is %ls", bSourceFileSystemRequired ? L"required" : L"NOT required");
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if (bSourcePathExists || !bSourceFileSystemRequired)
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{
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if (!bSourceFileSystemRequired || bSourceIsDirectory)
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{
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if (bSourceIsDirectory)
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{
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UNSYNC_VERBOSE(L"'%ls' is a directory", Options.Source.wstring().c_str());
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}
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else
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{
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UNSYNC_VERBOSE(L"Assuming '%ls' is a directory", Options.Source.wstring().c_str());
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}
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FSyncDirectoryOptions SyncOptions;
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if (bSourceIsManifestHash || !bSourceFileSystemRequired)
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{
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SyncOptions.SourceType = ESyncSourceType::Server;
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}
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else
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{
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SyncOptions.SourceType = ESyncSourceType::FileSystem;
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}
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SyncOptions.Source = Options.Source;
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SyncOptions.Base = Options.Target; // read base data from existing target
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SyncOptions.Target = Options.Target;
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SyncOptions.SourceManifestOverride = Options.SourceManifestOverride;
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SyncOptions.Remote = &Options.Remote;
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SyncOptions.SyncFilter = Options.Filter;
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SyncOptions.bCleanup = Options.bCleanup;
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SyncOptions.bValidateSourceFiles = !Options.bQuickSourceValidation;
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SyncOptions.bQuickDifference = Options.bQuickDifference;
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SyncOptions.bValidateTargetFiles = Options.bValidateTargetFiles;
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return SyncDirectory(SyncOptions) ? 0 : 1;
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}
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else
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{
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UNSYNC_VERBOSE(L"'%ls' is a file", Options.Source.wstring().c_str());
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FSyncFileOptions SyncFileOptions;
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SyncFileOptions.Algorithm = Options.Algorithm;
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SyncFileOptions.BlockSize = Options.BlockSize;
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SyncFileOptions.bValidateTargetFiles = Options.bValidateTargetFiles;
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return SyncFile(Options.Source, Options.Target, Options.Target, SyncFileOptions).Succeeded() ? 0 : 1;
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}
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}
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else
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{
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if (ErrorCode)
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{
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UNSYNC_ERROR(L"System error code %d: %hs", ErrorCode.value(), ErrorCode.message().c_str());
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return ErrorCode.value();
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}
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else
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{
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UNSYNC_ERROR(L"Source path does not exist");
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return 1;
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}
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}
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return 0;
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}
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} // namespace unsync
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