/// <summary>
/// Main entry point
/// </summary>
/// <param name="Arguments">Command-line arguments</param>
/// <returns>One of the values of ECompilationResult</returns>
public override int Execute(CommandLineArguments Arguments)
{
Arguments.ApplyTo(this);
// Create the build configuration object, and read the settings
BuildConfiguration BuildConfiguration = new BuildConfiguration();
XmlConfig.ApplyTo(BuildConfiguration);
Arguments.ApplyTo(BuildConfiguration);
// Parse all the targets being built
List <TargetDescriptor> TargetDescriptors = TargetDescriptor.ParseCommandLine(Arguments, BuildConfiguration.bUsePrecompiled, bSkipRulesCompile);
if (TargetDescriptors.Count == 0)
{
throw new BuildException("No targets specified to clean");
}
// Also add implicit descriptors for cleaning UnrealBuildTool
if (!BuildConfiguration.bDoNotBuildUHT)
{
const string UnrealHeaderToolTarget = "UnrealHeaderTool";
// Get a list of project files to clean UHT for
List <FileReference> ProjectFiles = new List <FileReference>();
foreach (TargetDescriptor TargetDesc in TargetDescriptors)
{
if (TargetDesc.Name != UnrealHeaderToolTarget && !RemoteMac.HandlesTargetPlatform(TargetDesc.Platform))
{
if (ProjectFiles.Count == 0)
{
ProjectFiles.Add(null);
}
if (TargetDesc.ProjectFile != null && !ProjectFiles.Contains(TargetDesc.ProjectFile))
{
ProjectFiles.Add(TargetDesc.ProjectFile);
}
}
}
// Add descriptors for cleaning UHT with all these projects
if (ProjectFiles.Count > 0)
{
UnrealTargetConfiguration Configuration = BuildConfiguration.bForceDebugUnrealHeaderTool ? UnrealTargetConfiguration.Debug : UnrealTargetConfiguration.Development;
string Architecture = UEBuildPlatform.GetBuildPlatform(BuildHostPlatform.Current.Platform).GetDefaultArchitecture(null);
foreach (FileReference ProjectFile in ProjectFiles)
{
TargetDescriptors.Add(new TargetDescriptor(ProjectFile, UnrealHeaderToolTarget, BuildHostPlatform.Current.Platform, Configuration, Architecture, null));
}
}
}
// Output the list of targets that we're cleaning
Log.TraceInformation("Cleaning {0} binaries...", StringUtils.FormatList(TargetDescriptors.Select(x => x.Name).Distinct()));
// Loop through all the targets, and clean them all
HashSet <FileReference> FilesToDelete = new HashSet <FileReference>();
HashSet <DirectoryReference> DirectoriesToDelete = new HashSet <DirectoryReference>();
foreach (TargetDescriptor TargetDescriptor in TargetDescriptors)
{
// Create the rules assembly
RulesAssembly RulesAssembly = RulesCompiler.CreateTargetRulesAssembly(TargetDescriptor.ProjectFile, TargetDescriptor.Name, bSkipRulesCompile, BuildConfiguration.bUsePrecompiled, TargetDescriptor.ForeignPlugin);
// Create the rules object
ReadOnlyTargetRules Target = new ReadOnlyTargetRules(RulesAssembly.CreateTargetRules(TargetDescriptor.Name, TargetDescriptor.Platform, TargetDescriptor.Configuration, TargetDescriptor.Architecture, TargetDescriptor.ProjectFile, TargetDescriptor.AdditionalArguments));
// Find the base folders that can contain binaries
List <DirectoryReference> BaseDirs = new List <DirectoryReference>();
BaseDirs.Add(UnrealBuildTool.EngineDirectory);
BaseDirs.Add(UnrealBuildTool.EnterpriseDirectory);
foreach (FileReference Plugin in Plugins.EnumeratePlugins(Target.ProjectFile))
{
BaseDirs.Add(Plugin.Directory);
}
if (Target.ProjectFile != null)
{
BaseDirs.Add(Target.ProjectFile.Directory);
}
// If we're running a precompiled build, remove anything under the engine folder
BaseDirs.RemoveAll(x => RulesAssembly.IsReadOnly(x));
// Get all the names which can prefix build products
List <string> NamePrefixes = new List <string>();
if (Target.Type != TargetType.Program)
{
NamePrefixes.Add(UEBuildTarget.GetAppNameForTargetType(Target.Type));
}
NamePrefixes.Add(Target.Name);
// Get the suffixes for this configuration
List <string> NameSuffixes = new List <string>();
if (Target.Configuration == Target.UndecoratedConfiguration)
{
NameSuffixes.Add("");
}
NameSuffixes.Add(String.Format("-{0}-{1}", Target.Platform.ToString(), Target.Configuration.ToString()));
if (!String.IsNullOrEmpty(Target.Architecture))
{
NameSuffixes.AddRange(NameSuffixes.ToArray().Select(x => x + Target.Architecture));
}
// Add all the makefiles and caches to be deleted
FilesToDelete.Add(TargetMakefile.GetLocation(Target.ProjectFile, Target.Name, Target.Platform, Target.Configuration));
FilesToDelete.UnionWith(SourceFileMetadataCache.GetFilesToClean(Target.ProjectFile));
FilesToDelete.UnionWith(ActionHistory.GetFilesToClean(Target.ProjectFile, Target.Name, Target.Platform, Target.Type));
// Add all the intermediate folders to be deleted
foreach (DirectoryReference BaseDir in BaseDirs)
{
foreach (string NamePrefix in NamePrefixes)
{
DirectoryReference GeneratedCodeDir = DirectoryReference.Combine(BaseDir, "Intermediate", "Build", Target.Platform.ToString(), NamePrefix, "Inc");
if (DirectoryReference.Exists(GeneratedCodeDir))
{
DirectoriesToDelete.Add(GeneratedCodeDir);
}
DirectoryReference IntermediateDir = DirectoryReference.Combine(BaseDir, "Intermediate", "Build", Target.Platform.ToString(), NamePrefix, Target.Configuration.ToString());
if (DirectoryReference.Exists(IntermediateDir))
{
DirectoriesToDelete.Add(IntermediateDir);
}
}
}
// List of additional files and directories to clean, specified by the target platform
List <FileReference> AdditionalFilesToDelete = new List <FileReference>();
List <DirectoryReference> AdditionalDirectoriesToDelete = new List <DirectoryReference>();
// Add all the build products from this target
string[] NamePrefixesArray = NamePrefixes.Distinct().ToArray();
string[] NameSuffixesArray = NameSuffixes.Distinct().ToArray();
foreach (DirectoryReference BaseDir in BaseDirs)
{
DirectoryReference BinariesDir = DirectoryReference.Combine(BaseDir, "Binaries", Target.Platform.ToString());
if (DirectoryReference.Exists(BinariesDir))
{
UEBuildPlatform.GetBuildPlatform(Target.Platform).FindBuildProductsToClean(BinariesDir, NamePrefixesArray, NameSuffixesArray, AdditionalFilesToDelete, AdditionalDirectoriesToDelete);
}
}
// Get all the additional intermediate folders created by this platform
UEBuildPlatform.GetBuildPlatform(Target.Platform).FindAdditionalBuildProductsToClean(Target, AdditionalFilesToDelete, AdditionalDirectoriesToDelete);
// Add the platform's files and directories to the main list
FilesToDelete.UnionWith(AdditionalFilesToDelete);
DirectoriesToDelete.UnionWith(AdditionalDirectoriesToDelete);
}
// Delete all the directories, then all the files. By sorting the list of directories before we delete them, we avoid spamming the log if a parent directory is deleted first.
foreach (DirectoryReference DirectoryToDelete in DirectoriesToDelete.OrderBy(x => x.FullName))
{
if (DirectoryReference.Exists(DirectoryToDelete))
{
Log.TraceVerbose(" Deleting {0}{1}...", DirectoryToDelete, Path.DirectorySeparatorChar);
try
{
DirectoryReference.Delete(DirectoryToDelete, true);
}
catch (Exception Ex)
{
throw new BuildException(Ex, "Unable to delete {0} ({1})", DirectoryToDelete, Ex.Message.TrimEnd());
}
}
}
foreach (FileReference FileToDelete in FilesToDelete.OrderBy(x => x.FullName))
{
if (FileReference.Exists(FileToDelete))
{
Log.TraceVerbose(" Deleting " + FileToDelete);
try
{
FileReference.Delete(FileToDelete);
}
catch (Exception Ex)
{
throw new BuildException(Ex, "Unable to delete {0} ({1})", FileToDelete, Ex.Message.TrimEnd());
}
}
}
// Also clean all the remote targets
for (int Idx = 0; Idx < TargetDescriptors.Count; Idx++)
{
TargetDescriptor TargetDescriptor = TargetDescriptors[Idx];
if (RemoteMac.HandlesTargetPlatform(TargetDescriptor.Platform))
{
RemoteMac RemoteMac = new RemoteMac(TargetDescriptor.ProjectFile);
RemoteMac.Clean(TargetDescriptor);
}
}
return(0);
}
