protected void AddPrerequisiteSourceFile(UEBuildTarget Target, IUEBuildPlatform BuildPlatform, CPPEnvironment CompileEnvironment, FileItem SourceFile, List <FileItem> PrerequisiteItems)
{
PrerequisiteItems.Add(SourceFile);
var RemoteThis = this as RemoteToolChain;
bool bAllowUploading = RemoteThis != null && BuildHostPlatform.Current.Platform != UnrealTargetPlatform.Mac; // Don't use remote features when compiling from a Mac
if (bAllowUploading)
{
RemoteThis.QueueFileForBatchUpload(SourceFile);
}
if (!BuildConfiguration.bUseExperimentalFastBuildIteration) // In fast build iteration mode, we'll gather includes later on
{
// @todo fastubt: What if one of the prerequisite files has become missing since it was updated in our cache? (usually, because a coder eliminated the source file)
// -> Two CASES:
// 1) NOT WORKING: Non-unity file went away (SourceFile in this context). That seems like an existing old use case. Compile params or Response file should have changed?
// 2) WORKING: Indirect file went away (unity'd original source file or include). This would return a file that no longer exists and adds to the prerequiteitems list
var IncludedFileList = CPPEnvironment.FindAndCacheAllIncludedFiles(Target, SourceFile, BuildPlatform, CompileEnvironment.Config.CPPIncludeInfo, bOnlyCachedDependencies: BuildConfiguration.bUseExperimentalFastDependencyScan);
foreach (FileItem IncludedFile in IncludedFileList)
{
PrerequisiteItems.Add(IncludedFile);
if (bAllowUploading &&
!BuildConfiguration.bUseExperimentalFastDependencyScan) // With fast dependency scanning, we will not have an exhaustive list of dependencies here. We rely on PostCodeGeneration() to upload these files.
{
RemoteThis.QueueFileForBatchUpload(IncludedFile);
}
}
}
}
public static List <FileItem> FindAndCacheAllIncludedFiles(UEBuildTarget Target, FileItem SourceFile, UEBuildPlatform BuildPlatform, CPPIncludeInfo CPPIncludeInfo, bool bOnlyCachedDependencies)
{
List <FileItem> Result = null;
if (CPPIncludeInfo.IncludeFileSearchDictionary == null)
{
CPPIncludeInfo.IncludeFileSearchDictionary = new Dictionary <string, FileItem>();
}
bool bUseFlatCPPIncludeDependencyCache = BuildConfiguration.bUseUBTMakefiles && UnrealBuildTool.IsAssemblingBuild;
if (bOnlyCachedDependencies && bUseFlatCPPIncludeDependencyCache)
{
Result = FlatCPPIncludeDependencyCache[Target].GetDependenciesForFile(SourceFile.Reference);
if (Result == null)
{
// Nothing cached for this file! It is new to us. This is the expected flow when our CPPIncludeDepencencyCache is missing.
}
}
else
{
// @todo ubtmake: HeaderParser.h is missing from the include set for Module.UnrealHeaderTool.cpp (failed to find include using: FileItem DirectIncludeResolvedFile = CPPEnvironment.FindIncludedFile(DirectInclude.IncludeName, !BuildConfiguration.bCheckExternalHeadersForModification, IncludePathsToSearch, IncludeFileSearchDictionary );)
// If we're doing an exhaustive include scan, make sure that we have our include dependency cache loaded and ready
if (!bOnlyCachedDependencies)
{
if (!IncludeDependencyCache.ContainsKey(Target))
{
IncludeDependencyCache.Add(Target, DependencyCache.Create(DependencyCache.GetDependencyCachePathForTarget(Target)));
}
}
Result = new List <FileItem>();
IncludedFilesSet IncludedFileList = new IncludedFilesSet();
CPPEnvironment.FindAndCacheAllIncludedFiles(Target, SourceFile, BuildPlatform, CPPIncludeInfo, ref IncludedFileList, bOnlyCachedDependencies: bOnlyCachedDependencies);
foreach (FileItem IncludedFile in IncludedFileList)
{
Result.Add(IncludedFile);
}
// Update cache
if (bUseFlatCPPIncludeDependencyCache && !bOnlyCachedDependencies)
{
List <FileReference> Dependencies = new List <FileReference>();
foreach (FileItem IncludedFile in Result)
{
Dependencies.Add(IncludedFile.Reference);
}
FileReference PCHName = SourceFile.PrecompiledHeaderIncludeFilename;
FlatCPPIncludeDependencyCache[Target].SetDependenciesForFile(SourceFile.Reference, PCHName, Dependencies);
}
}
return(Result);
}
public static List <FileItem> FindAndCacheAllIncludedFiles(UEBuildTarget Target, FileItem SourceFile, IUEBuildPlatform BuildPlatform, CPPIncludeInfo CPPIncludeInfo, bool bOnlyCachedDependencies)
{
var Result = new List <FileItem>();
if (CPPIncludeInfo.IncludeFileSearchDictionary == null)
{
CPPIncludeInfo.IncludeFileSearchDictionary = new Dictionary <string, FileItem>();
}
bool bUseFlatCPPIncludeDependencyCache =
(BuildConfiguration.bUseExperimentalFastDependencyScan &&
(!BuildConfiguration.bUseExperimentalFastBuildIteration || UnrealBuildTool.IsAssemblingBuild));
if (bUseFlatCPPIncludeDependencyCache && bOnlyCachedDependencies)
{
var Dependencies = FlatCPPIncludeDependencyCache[Target].GetDependenciesForFile(SourceFile.AbsolutePath);
if (Dependencies != null)
{
foreach (string Dependency in Dependencies)
{
Result.Add(FileItem.GetItemByFullPath(Dependency)); // @todo fastubt: Make sure this is as fast as possible (convert to FileItem)
}
}
else
{
// Nothing cached for this file! It is new to us. This is the expected flow when our CPPIncludeDepencencyCache is missing.
}
}
else
{
// @todo fastubt: HeaderParser.h is missing from the include set for Module.UnrealHeaderTool.cpp (failed to find include using: FileItem DirectIncludeResolvedFile = CPPEnvironment.FindIncludedFile(DirectInclude.IncludeName, !BuildConfiguration.bCheckExternalHeadersForModification, IncludePathsToSearch, IncludeFileSearchDictionary );)
var IncludedFileList = new IncludedFilesSet();
CPPEnvironment.FindAndCacheAllIncludedFiles(Target, SourceFile, BuildPlatform, CPPIncludeInfo, ref IncludedFileList, bOnlyCachedDependencies: bOnlyCachedDependencies);
foreach (FileItem IncludedFile in IncludedFileList)
{
Result.Add(IncludedFile);
}
// Update cache
if (bUseFlatCPPIncludeDependencyCache && !bOnlyCachedDependencies)
{
var Dependencies = new List <string>();
foreach (var IncludedFile in Result)
{
Dependencies.Add(IncludedFile.AbsolutePath);
}
string PCHName = SourceFile.PrecompiledHeaderIncludeFilename;
FlatCPPIncludeDependencyCache[Target].SetDependenciesForFile(SourceFile.AbsolutePath, PCHName, Dependencies);
}
}
return(Result);
}
