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a903eb52c9
#rb Per.Larsson #jira UE-215823 #rnx - When the UVT needs to launch a child process we send it info on the command to run via a .input file and in turn the child process will write out a .output file to return info to the calling process. - This change will now attempt to delete these files after we are done with them. - If the delete fails we will raise a warning rather than an error as it is not essential that the files be deleted. [CL 33923415 by paul chipchase in ue5-main branch]
113 lines
3.2 KiB
C++
113 lines
3.2 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "Containers/Array.h"
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#include "Containers/UnrealString.h"
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#include "ProjectFiles.h"
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#include "Templates/UniquePtr.h"
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namespace UE::Virtualization
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{
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class FCommand;
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struct FCommandOutput;
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/** The mode of the application to run */
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enum class EMode :uint32
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{
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/** Error condition */
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Unknown = 0,
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// Legacy (should be phased out)
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/** Virtualize and submit a given changelist */
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Changelist,
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/** Virtualize a list of packages provided by text file */
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PackageList,
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/// New Style Commands
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/** Virtualize one or more packages */
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Virtualize,
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/** Rehydrate one or more packages */
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Rehydrate
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};
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/** The result of FUnrealVirtualizationToolApp initialization */
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enum class EInitResult
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{
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/** Initialization succeeded and the application should run. */
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Success = 0,
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/** No error was encountered but the application should early out and not run. */
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EarlyOut,
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/** Initialization failed with an error, we should not run and should display an error to the user */
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Error
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};
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class FUnrealVirtualizationToolApp
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{
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public:
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FUnrealVirtualizationToolApp();
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~FUnrealVirtualizationToolApp();
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EInitResult Initialize();
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bool Run();
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private:
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void PrintCmdLineHelp() const;
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bool ProcessProjects(TArray<TUniquePtr<FCommandOutput>>& OutputArray);
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bool TryLoadModules();
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bool TryInitEnginePlugins();
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EInitResult TryParseCmdLine();
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EInitResult TryParseGlobalOptions(const TCHAR* CmdLine);
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EInitResult CreateCommandFromString(const FString& CommandName, const TCHAR* Cmdline);
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bool TrySortFilesByProject(const TArray<FString>& Packages);
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bool TryFindProject(const FString& PackagePath, FString& ProjectFilePath, FString& PluginFilePath) const;
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FProject& FindOrAddProject(FString&& ProjectFilePath);
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bool IsChildProcess() const;
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void AddGlobalOption(FStringView Options);
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static bool TryReadChildProcessOutputFile(const FGuid& ChildProcessId, const FCommand& Command, TArray<TUniquePtr<FCommandOutput>>& OutputArray);
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static bool TryWriteChildProcessOutputFile(const FString& ChildProcessId, const TArray<TUniquePtr<FCommandOutput>>& OutputArray);
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/** Note not currently static due to dependencies */
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bool TryReadChildProcessInputFile(const FString& InputPath);
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static bool TryWriteChildProcessInputFile(const FGuid& ChildProcessId, const FCommand& Command, const FProject& Project, FStringBuilderBase& OutPath);
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static void CleanUpChildProcessFiles(const FGuid& ChildProcessId);
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static bool LaunchChildProcess(const FCommand& Command, const FProject& Project, FStringView GlobalOptions, TArray<TUniquePtr<FCommandOutput>>& OutputArray);
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private:
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/** Override used to suppress log messages */
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TUniquePtr<FFeedbackContext> OutputDeviceOverride;
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/** Stored the id of the child process. This is the base file name of the input file used to launch it */
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FString ChildProcessId;
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/** A string containing all global options that were found in the cmdline */
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FString GlobalCmdlineOptions;
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/** Data structure holding the files in the changelist sorted by project and then by plugin*/
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TArray<FProject> Projects;
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/** The mode for the application to run */
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EMode Mode = EMode::Unknown;
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/** The command being processed */
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TUniquePtr<FCommand> CurrentCommand;
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};
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} //namespace UE::Virtualization
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