/// <summary>
/// Read config settings for the given object
/// </summary>
/// <param name="ProjectDir">Path to the project directory</param>
/// <param name="Platform">The platform being built</param>
/// <param name="TargetObject">Object to receive the settings</param>
public static void ReadSettings(DirectoryReference ProjectDir, UnrealTargetPlatform Platform, object TargetObject)
{
List <ConfigField> Fields = FindConfigFieldsForType(TargetObject.GetType());
foreach (ConfigField Field in Fields)
{
// Read the hierarchy listed
ConfigHierarchy Hierarchy = ReadHierarchy(Field.Attribute.ConfigType, ProjectDir, Platform);
// Parse the values from the config files and update the target object
if (Field.AddElement == null)
{
string Text;
if (Hierarchy.TryGetValue(Field.Attribute.SectionName, Field.Attribute.KeyName ?? Field.FieldInfo.Name, out Text))
{
object Value;
if (TryParseValue(Text, Field.FieldInfo.FieldType, out Value))
{
Field.FieldInfo.SetValue(TargetObject, Value);
}
}
}
else
{
IEnumerable <string> Items;
if (Hierarchy.TryGetValues(Field.Attribute.SectionName, Field.Attribute.KeyName ?? Field.FieldInfo.Name, out Items))
{
foreach (string Item in Items)
{
object Value;
if (TryParseValue(Item, Field.ElementType, out Value))
{
Field.AddElement(TargetObject, Value);
}
}
}
}
}
}
/// <summary>
/// Checks if the editor is currently running and this is a hot-reload
/// </summary>
public static bool ShouldDoHotReloadFromIDE(BuildConfiguration BuildConfiguration, TargetDescriptor TargetDesc)
{
// Check if Hot-reload is disabled globally for this project
ConfigHierarchy Hierarchy = ConfigCache.ReadHierarchy(ConfigHierarchyType.Engine, DirectoryReference.FromFile(TargetDesc.ProjectFile), TargetDesc.Platform);
bool bAllowHotReloadFromIDE;
if (Hierarchy.TryGetValue("BuildConfiguration", "bAllowHotReloadFromIDE", out bAllowHotReloadFromIDE) && !bAllowHotReloadFromIDE)
{
return(false);
}
if (!BuildConfiguration.bAllowHotReloadFromIDE)
{
return(false);
}
// Check if we're using LiveCode instead
ConfigHierarchy EditorPerProjectHierarchy = ConfigCache.ReadHierarchy(ConfigHierarchyType.EditorPerProjectUserSettings, DirectoryReference.FromFile(TargetDesc.ProjectFile), TargetDesc.Platform);
bool bEnableLiveCode;
if (EditorPerProjectHierarchy.GetBool("/Script/LiveCoding.LiveCodingSettings", "bEnabled", out bEnableLiveCode) && bEnableLiveCode)
{
return(false);
}
bool bIsRunning = false;
// @todo ubtmake: Kind of cheating here to figure out if an editor target. At this point we don't have access to the actual target description, and
// this code must be able to execute before we create or load module rules DLLs so that hot reload can work with bUseUBTMakefiles
if (TargetDesc.Name.EndsWith("Editor", StringComparison.OrdinalIgnoreCase))
{
string EditorBaseFileName = "UE4Editor";
if (TargetDesc.Configuration != UnrealTargetConfiguration.Development)
{
EditorBaseFileName = String.Format("{0}-{1}-{2}", EditorBaseFileName, TargetDesc.Platform, TargetDesc.Configuration);
}
FileReference EditorLocation;
if (TargetDesc.Platform == UnrealTargetPlatform.Win64)
{
EditorLocation = FileReference.Combine(UnrealBuildTool.EngineDirectory, "Binaries", "Win64", String.Format("{0}.exe", EditorBaseFileName));
}
else if (TargetDesc.Platform == UnrealTargetPlatform.Mac)
{
EditorLocation = FileReference.Combine(UnrealBuildTool.EngineDirectory, "Binaries", "Mac", String.Format("{0}.app/Contents/MacOS/{0}", EditorBaseFileName));
}
else if (TargetDesc.Platform == UnrealTargetPlatform.Linux)
{
EditorLocation = FileReference.Combine(UnrealBuildTool.EngineDirectory, "Binaries", "Linux", EditorBaseFileName);
}
else
{
throw new BuildException("Unknown editor filename for this platform");
}
using (Timeline.ScopeEvent("Finding editor processes for hot-reload"))
{
DirectoryReference EditorRunsDir = DirectoryReference.Combine(UnrealBuildTool.EngineDirectory, "Intermediate", "EditorRuns");
if (!DirectoryReference.Exists(EditorRunsDir))
{
return(false);
}
if (BuildHostPlatform.Current.Platform == UnrealTargetPlatform.Win64)
{
foreach (FileReference EditorInstanceFile in DirectoryReference.EnumerateFiles(EditorRunsDir))
{
int ProcessId;
if (!Int32.TryParse(EditorInstanceFile.GetFileName(), out ProcessId))
{
FileReference.Delete(EditorInstanceFile);
continue;
}
Process RunningProcess;
try
{
RunningProcess = Process.GetProcessById(ProcessId);
}
catch
{
RunningProcess = null;
}
if (RunningProcess == null)
{
FileReference.Delete(EditorInstanceFile);
continue;
}
FileReference MainModuleFile;
try
{
MainModuleFile = new FileReference(RunningProcess.MainModule.FileName);
}
catch
{
MainModuleFile = null;
}
if (!bIsRunning && EditorLocation == MainModuleFile)
{
bIsRunning = true;
}
}
}
else
{
FileInfo[] EditorRunsFiles = new DirectoryInfo(EditorRunsDir.FullName).GetFiles();
BuildHostPlatform.ProcessInfo[] Processes = BuildHostPlatform.Current.GetProcesses();
foreach (FileInfo File in EditorRunsFiles)
{
int PID;
BuildHostPlatform.ProcessInfo Proc = null;
if (!Int32.TryParse(File.Name, out PID) || (Proc = Processes.FirstOrDefault(P => P.PID == PID)) == default(BuildHostPlatform.ProcessInfo))
{
// Delete stale files (it may happen if editor crashes).
File.Delete();
continue;
}
// Don't break here to allow clean-up of other stale files.
if (!bIsRunning)
{
// Otherwise check if the path matches.
bIsRunning = new FileReference(Proc.Filename) == EditorLocation;
}
}
}
}
}
return(bIsRunning);
}
