Files
UnrealEngine/Engine/Source/Programs/UnrealBuildTool/System/ModuleDescriptor.cs
2025-05-18 13:04:45 +08:00

722 lines
25 KiB
C#

// Copyright Epic Games, Inc. All Rights Reserved.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using EpicGames.Core;
using JsonExtensions;
namespace UnrealBuildTool
{
/// <summary>
/// The type of host that can load a module
/// </summary>
public enum ModuleHostType
{
/// <summary>
///
/// </summary>
Default,
/// <summary>
/// Any target using the UE runtime
/// </summary>
Runtime,
/// <summary>
/// Any target except for commandlet
/// </summary>
RuntimeNoCommandlet,
/// <summary>
/// Any target or program
/// </summary>
RuntimeAndProgram,
/// <summary>
/// Loaded only in cooked builds
/// </summary>
CookedOnly,
/// <summary>
/// Loaded only in uncooked builds
/// </summary>
UncookedOnly,
/// <summary>
/// Loaded only when the engine has support for developer tools enabled
/// </summary>
Developer,
/// <summary>
/// Loads on any targets where bBuildDeveloperTools is enabled
/// </summary>
DeveloperTool,
/// <summary>
/// Loaded only by the editor
/// </summary>
Editor,
/// <summary>
/// Loaded only by the editor, except when running commandlets
/// </summary>
EditorNoCommandlet,
/// <summary>
/// Loaded by the editor or program targets
/// </summary>
EditorAndProgram,
/// <summary>
/// Loaded only by programs
/// </summary>
Program,
/// <summary>
/// Loaded only by servers
/// </summary>
ServerOnly,
/// <summary>
/// Loaded only by clients, and commandlets, and editor....
/// </summary>
ClientOnly,
/// <summary>
/// Loaded only by clients and editor (editor can run PIE which is kinda a commandlet)
/// </summary>
ClientOnlyNoCommandlet,
/// <summary>
/// External module, should never be loaded automatically only referenced
/// </summary>
External,
}
/// <summary>
/// Indicates when the engine should attempt to load this module
/// </summary>
public enum ModuleLoadingPhase
{
/// <summary>
/// Loaded at the default loading point during startup (during engine init, after game modules are loaded.)
/// </summary>
Default,
/// <summary>
/// Right after the default phase
/// </summary>
PostDefault,
/// <summary>
/// Right before the default phase
/// </summary>
PreDefault,
/// <summary>
/// Loaded as soon as plugins can possibly be loaded (need GConfig)
/// </summary>
EarliestPossible,
/// <summary>
/// Loaded before the engine is fully initialized, immediately after the config system has been initialized. Necessary only for very low-level hooks
/// </summary>
PostConfigInit,
/// <summary>
/// The first screen to be rendered after system splash screen
/// </summary>
PostSplashScreen,
/// <summary>
/// After PostConfigInit and before coreUobject initialized. used for early boot loading screens before the uobjects are initialized
/// </summary>
PreEarlyLoadingScreen,
/// <summary>
/// Loaded before the engine is fully initialized for modules that need to hook into the loading screen before it triggers
/// </summary>
PreLoadingScreen,
/// <summary>
/// After the engine has been initialized
/// </summary>
PostEngineInit,
/// <summary>
/// Do not automatically load this module
/// </summary>
None,
}
/// <summary>
/// Class containing information about a code module
/// </summary>
[DebuggerDisplay("Name={Name}")]
public class ModuleDescriptor
{
/// <summary>
/// Name of this module
/// </summary>
public readonly string Name;
/// <summary>
/// Usage type of module
/// </summary>
public ModuleHostType Type;
/// <summary>
/// When should the module be loaded during the startup sequence? This is sort of an advanced setting.
/// </summary>
public ModuleLoadingPhase LoadingPhase = ModuleLoadingPhase.Default;
/// <summary>
/// List of allowed platforms
/// </summary>
public List<UnrealTargetPlatform>? PlatformAllowList;
/// <summary>
/// List of disallowed platforms
/// </summary>
public List<UnrealTargetPlatform>? PlatformDenyList;
/// <summary>
/// List of allowed targets
/// </summary>
public TargetType[]? TargetAllowList;
/// <summary>
/// List of disallowed targets
/// </summary>
public TargetType[]? TargetDenyList;
/// <summary>
/// List of allowed target configurations
/// </summary>
public UnrealTargetConfiguration[]? TargetConfigurationAllowList;
/// <summary>
/// List of disallowed target configurations
/// </summary>
public UnrealTargetConfiguration[]? TargetConfigurationDenyList;
/// <summary>
/// List of allowed programs
/// </summary>
public string[]? ProgramAllowList;
/// <summary>
/// List of disallowed programs
/// </summary>
public string[]? ProgramDenyList;
/// <summary>
/// List of allowed game targets
/// </summary>
public string[]? GameTargetAllowList;
/// <summary>
/// List of disallowed game targets
/// </summary>
public string[]? GameTargetDenyList;
/// <summary>
/// List of additional dependencies for building this module.
/// </summary>
public string[]? AdditionalDependencies;
/// <summary>
/// When true, an empty PlatformAllowList is interpreted as 'no platforms' with the expectation that explicit platforms will be added in plugin extensions */
/// </summary>
public bool bHasExplicitPlatforms;
/// <summary>
/// Constructor
/// </summary>
/// <param name="InName">Name of the module</param>
/// <param name="InType">Type of target that can host this module</param>
public ModuleDescriptor(string InName, ModuleHostType InType)
{
Name = InName;
Type = InType;
}
/// <summary>
/// Constructs a ModuleDescriptor from a Json object
/// </summary>
/// <param name="InObject"></param>
/// <param name="JsonFilePath"></param>
/// <returns>The new module descriptor</returns>
public static ModuleDescriptor FromJsonObject(JsonObject InObject, FileReference JsonFilePath)
{
ModuleDescriptor Module = new ModuleDescriptor(InObject.GetStringField("Name"), InObject.GetEnumField<ModuleHostType>("Type"));
ModuleLoadingPhase LoadingPhase;
if (InObject.TryGetEnumField<ModuleLoadingPhase>("LoadingPhase", out LoadingPhase))
{
Module.LoadingPhase = LoadingPhase;
}
try
{
string[]? PlatformAllowList;
// it's important we default to null, and don't have an empty allow list by default, because that will indicate that no
// platforms should be compiled (see IsCompiledInConfiguration(), it only checks for null, not length)
Module.PlatformAllowList = null;
if (InObject.TryGetStringArrayFieldWithDeprecatedFallback("PlatformAllowList", "WhitelistPlatforms", out PlatformAllowList))
{
Module.PlatformAllowList = new List<UnrealTargetPlatform>();
foreach (string TargetPlatformName in PlatformAllowList)
{
UnrealTargetPlatform Platform;
if (UnrealTargetPlatform.TryParse(TargetPlatformName, out Platform))
{
Module.PlatformAllowList.Add(Platform);
}
else if ( !PluginDescriptor.IsAllowableMissingPlatform(TargetPlatformName, JsonFilePath.Directory) )
{
Log.TraceWarningTask(JsonFilePath, $"Unknown platform {TargetPlatformName} while parsing allow list for module descriptor {Module.Name}");
}
}
}
string[]? PlatformDenyList;
if (InObject.TryGetStringArrayFieldWithDeprecatedFallback("PlatformDenyList", "BlacklistPlatforms", out PlatformDenyList))
{
Module.PlatformDenyList = new List<UnrealTargetPlatform>();
foreach (string TargetPlatformName in PlatformDenyList)
{
UnrealTargetPlatform Platform;
if (UnrealTargetPlatform.TryParse(TargetPlatformName, out Platform))
{
Module.PlatformDenyList.Add(Platform);
}
else if ( !PluginDescriptor.IsAllowableMissingPlatform(TargetPlatformName, JsonFilePath.Directory) )
{
Log.TraceWarningTask(JsonFilePath, $"Unknown platform {TargetPlatformName} while parsing deny list for module descriptor {Module.Name}");
}
}
}
}
catch (BuildException Ex)
{
ExceptionUtils.AddContext(Ex, "while parsing module descriptor '{0}'", Module.Name);
throw;
}
TargetType[]? TargetAllowList;
if (InObject.TryGetEnumArrayFieldWithDeprecatedFallback<TargetType>("TargetAllowList", "WhitelistTargets", out TargetAllowList))
{
Module.TargetAllowList = TargetAllowList;
}
TargetType[]? TargetDenyList;
if (InObject.TryGetEnumArrayFieldWithDeprecatedFallback<TargetType>("TargetDenyList", "BlacklistTargets", out TargetDenyList))
{
Module.TargetDenyList = TargetDenyList;
}
UnrealTargetConfiguration[]? TargetConfigurationAllowList;
if (InObject.TryGetEnumArrayFieldWithDeprecatedFallback<UnrealTargetConfiguration>("TargetConfigurationAllowList", "WhitelistTargetConfigurations", out TargetConfigurationAllowList))
{
Module.TargetConfigurationAllowList = TargetConfigurationAllowList;
}
UnrealTargetConfiguration[]? TargetConfigurationDenyList;
if (InObject.TryGetEnumArrayFieldWithDeprecatedFallback<UnrealTargetConfiguration>("TargetConfigurationDenyList", "BlacklistTargetConfigurations", out TargetConfigurationDenyList))
{
Module.TargetConfigurationDenyList = TargetConfigurationDenyList;
}
string[]? ProgramAllowList;
if (InObject.TryGetStringArrayFieldWithDeprecatedFallback("ProgramAllowList", "WhitelistPrograms", out ProgramAllowList))
{
Module.ProgramAllowList = ProgramAllowList;
}
string[]? ProgramDenyList;
if (InObject.TryGetStringArrayFieldWithDeprecatedFallback("ProgramDenyList", "BlacklistPrograms", out ProgramDenyList))
{
Module.ProgramDenyList = ProgramDenyList;
}
string[]? GameTargetAllowList;
if (InObject.TryGetStringArrayField("GameTargetAllowList", out GameTargetAllowList))
{
Module.GameTargetAllowList = GameTargetAllowList;
}
string[]? GameTargetDenyList;
if (InObject.TryGetStringArrayField("GameTargetDenyList", out GameTargetDenyList))
{
Module.GameTargetDenyList = GameTargetDenyList;
}
string[]? AdditionalDependencies;
if (InObject.TryGetStringArrayField("AdditionalDependencies", out AdditionalDependencies))
{
Module.AdditionalDependencies = AdditionalDependencies;
}
bool bHasExplicitPlatforms;
if (InObject.TryGetBoolField("HasExplicitPlatforms", out bHasExplicitPlatforms))
{
Module.bHasExplicitPlatforms = bHasExplicitPlatforms;
}
return Module;
}
/// <summary>
/// Write this module to a JsonWriter
/// </summary>
/// <param name="Writer">Writer to output to</param>
void Write(JsonWriter Writer)
{
Writer.WriteObjectStart();
Writer.WriteValue("Name", Name);
Writer.WriteValue("Type", Type.ToString());
Writer.WriteValue("LoadingPhase", LoadingPhase.ToString());
// important note: we don't check the length of the platform allow list, because if an unknown platform was read in, but was not valid, the
// list will exist but be empty. We don't want to remove the allow list completely, because that would allow this module on all platforms,
// which will not be the desired effect
if (PlatformAllowList != null)
{
Writer.WriteArrayStart("PlatformAllowList");
foreach (UnrealTargetPlatform Platform in PlatformAllowList)
{
Writer.WriteValue(Platform.ToString());
}
Writer.WriteArrayEnd();
}
if (PlatformDenyList != null && PlatformDenyList.Count > 0)
{
Writer.WriteArrayStart("PlatformDenyList");
foreach (UnrealTargetPlatform Platform in PlatformDenyList)
{
Writer.WriteValue(Platform.ToString());
}
Writer.WriteArrayEnd();
}
if (TargetAllowList != null && TargetAllowList.Length > 0)
{
Writer.WriteArrayStart("TargetAllowList");
foreach (TargetType Target in TargetAllowList)
{
Writer.WriteValue(Target.ToString());
}
Writer.WriteArrayEnd();
}
if (TargetDenyList != null && TargetDenyList.Length > 0)
{
Writer.WriteArrayStart("TargetDenyList");
foreach (TargetType Target in TargetDenyList)
{
Writer.WriteValue(Target.ToString());
}
Writer.WriteArrayEnd();
}
if (TargetConfigurationAllowList != null && TargetConfigurationAllowList.Length > 0)
{
Writer.WriteArrayStart("TargetConfigurationAllowList");
foreach (UnrealTargetConfiguration Config in TargetConfigurationAllowList)
{
Writer.WriteValue(Config.ToString());
}
Writer.WriteArrayEnd();
}
if (TargetConfigurationDenyList != null && TargetConfigurationDenyList.Length > 0)
{
Writer.WriteArrayStart("TargetConfigurationDenyList");
foreach (UnrealTargetConfiguration Config in TargetConfigurationDenyList)
{
Writer.WriteValue(Config.ToString());
}
Writer.WriteArrayEnd();
}
if (ProgramAllowList != null && ProgramAllowList.Length > 0)
{
Writer.WriteStringArrayField("ProgramAllowList", ProgramAllowList);
}
if (ProgramDenyList != null && ProgramDenyList.Length > 0)
{
Writer.WriteStringArrayField("ProgramDenyList", ProgramDenyList);
}
if (GameTargetAllowList != null && GameTargetAllowList.Length > 0)
{
Writer.WriteStringArrayField("GameTargetAllowList", GameTargetAllowList);
}
if (GameTargetDenyList != null && GameTargetDenyList.Length > 0)
{
Writer.WriteStringArrayField("GameTargetDenyList", GameTargetDenyList);
}
if (AdditionalDependencies != null && AdditionalDependencies.Length > 0)
{
Writer.WriteArrayStart("AdditionalDependencies");
foreach (string AdditionalDependency in AdditionalDependencies)
{
Writer.WriteValue(AdditionalDependency);
}
Writer.WriteArrayEnd();
}
if (bHasExplicitPlatforms)
{
Writer.WriteValue("HasExplicitPlatforms", bHasExplicitPlatforms);
}
Writer.WriteObjectEnd();
}
JsonObject ToJsonObject()
{
JsonObject ModuleObject = new JsonObject();
ModuleObject.AddOrSetFieldValue("Name", Name);
ModuleObject.AddOrSetFieldValue("Type", Type.ToString());
ModuleObject.AddOrSetFieldValue("LoadingPhase", LoadingPhase.ToString());
// important note: we don't check the length of the platform allow list, because if an unknown platform was read in, but was not valid, the
// list will exist but be empty. We don't want to remove the allow list completely, because that would allow this module on all platforms,
// which will not be the desired effect
if (PlatformAllowList != null)
{
string[] PlatformAllowListStringArray = PlatformAllowList.Select(X => X.ToString()).ToArray();
ModuleObject.AddOrSetFieldValue("PlatformAllowList", PlatformAllowListStringArray);
}
if (PlatformDenyList != null && PlatformDenyList.Count > 0)
{
string[] PlatformDenyListStringArray = PlatformDenyList.Select(X => X.ToString()).ToArray();
ModuleObject.AddOrSetFieldValue("PlatformDenyList", PlatformDenyListStringArray);
}
if (TargetAllowList != null && TargetAllowList.Length > 0)
{
string[] TargetAllowListStringArray = TargetAllowList.Select(X => X.ToString()).ToArray();
ModuleObject.AddOrSetFieldValue("TargetAllowList", TargetAllowListStringArray);
}
if (TargetDenyList != null && TargetDenyList.Length > 0)
{
string[] TargetDenyListStringArray = TargetDenyList.Select(X => X.ToString()).ToArray();
ModuleObject.AddOrSetFieldValue("TargetDenyList", TargetDenyListStringArray);
}
if (TargetConfigurationAllowList != null && TargetConfigurationAllowList.Length > 0)
{
string[] TargetConfigurationAllowListStringArray = TargetConfigurationAllowList.Select(X => X.ToString()).ToArray();
ModuleObject.AddOrSetFieldValue("TargetConfigurationAllowList", TargetConfigurationAllowListStringArray);
}
if (TargetConfigurationDenyList != null && TargetConfigurationDenyList.Length > 0)
{
string[] TargetConfigurationDenyListStringArray = TargetConfigurationDenyList.Select(X => X.ToString()).ToArray();
ModuleObject.AddOrSetFieldValue("TargetConfigurationDenyList", TargetConfigurationDenyListStringArray);
}
if (ProgramAllowList != null && ProgramAllowList.Length > 0)
{
ModuleObject.AddOrSetFieldValue("ProgramAllowList", ProgramAllowList);
}
if (ProgramDenyList != null && ProgramDenyList.Length > 0)
{
ModuleObject.AddOrSetFieldValue("ProgramDenyList", ProgramDenyList);
}
if (AdditionalDependencies != null && AdditionalDependencies.Length > 0)
{
ModuleObject.AddOrSetFieldValue("AdditionalDependencies", AdditionalDependencies);
}
if (bHasExplicitPlatforms)
{
ModuleObject.AddOrSetFieldValue("HasExplicitPlatforms", bHasExplicitPlatforms);
}
return ModuleObject;
}
/// <summary>
/// Write an array of module descriptors
/// </summary>
/// <param name="Writer">The Json writer to output to</param>
/// <param name="Name">Name of the array</param>
/// <param name="Modules">Array of modules</param>
public static void WriteArray(JsonWriter Writer, string Name, ModuleDescriptor[]? Modules)
{
if (Modules != null && Modules.Length > 0)
{
Writer.WriteArrayStart(Name);
foreach (ModuleDescriptor Module in Modules)
{
Module.Write(Writer);
}
Writer.WriteArrayEnd();
}
}
/// <summary>
/// Updates a JsonObject with an array of module descriptors
/// </summary>
/// <param name="InObject">The JsonObject to update.</param>
/// <param name="Name">Name of the array</param>
/// <param name="Modules">Array of modules</param>
public static void UpdateJson(JsonObject InObject, string Name, ModuleDescriptor[]? Modules)
{
if (Modules != null && Modules.Length > 0)
{
JsonObject[] JsonObjects = Modules.Select(X => X.ToJsonObject()).ToArray();
InObject.AddOrSetFieldValue(Name, JsonObjects);
}
}
/// <summary>
/// Produces any warnings and errors for the module settings
/// </summary>
/// <param name="File">File containing the module declaration</param>
public void Validate(FileReference File)
{
if (Type == ModuleHostType.Developer)
{
Log.TraceWarningOnce("The 'Developer' module type has been deprecated in 4.24. Use 'DeveloperTool' for modules that can be loaded by game/client/server targets in non-shipping configurations, or 'UncookedOnly' for modules that should only be loaded by uncooked editor and program targets (eg. modules containing blueprint nodes)");
Log.TraceWarningOnce(File, "The 'Developer' module type has been deprecated in 4.24.");
}
}
/// <summary>
/// Determines whether the given plugin module is part of the current build.
/// </summary>
/// <param name="Platform">The platform being compiled for</param>
/// <param name="Configuration">The target configuration being compiled for</param>
/// <param name="TargetName">Name of the target being built</param>
/// <param name="TargetType">The type of the target being compiled</param>
/// <param name="bBuildDeveloperTools">Whether the configuration includes developer tools (typically UEBuildConfiguration.bBuildDeveloperTools for UBT callers)</param>
/// <param name="bBuildRequiresCookedData">Whether the configuration requires cooked content (typically UEBuildConfiguration.bBuildRequiresCookedData for UBT callers)</param>
public bool IsCompiledInConfiguration(UnrealTargetPlatform Platform, UnrealTargetConfiguration Configuration, string TargetName, TargetType TargetType, bool bBuildDeveloperTools, bool bBuildRequiresCookedData)
{
return IsCompiledInConfiguration(Platform, Configuration, TargetName, TargetType, bBuildDeveloperTools, bBuildRequiresCookedData, out string? _);
}
/// <summary>
/// Determines whether the given plugin module is part of the current build.
/// </summary>
/// <param name="Platform">The platform being compiled for</param>
/// <param name="Configuration">The target configuration being compiled for</param>
/// <param name="TargetName">Name of the target being built</param>
/// <param name="TargetType">The type of the target being compiled</param>
/// <param name="bBuildDeveloperTools">Whether the configuration includes developer tools (typically UEBuildConfiguration.bBuildDeveloperTools for UBT callers)</param>
/// <param name="bBuildRequiresCookedData">Whether the configuration requires cooked content (typically UEBuildConfiguration.bBuildRequiresCookedData for UBT callers)</param>
/// <param name="invalidReason">Out parameter, reason why this plugin module is invalid</param>
public bool IsCompiledInConfiguration(UnrealTargetPlatform Platform, UnrealTargetConfiguration Configuration, string TargetName, TargetType TargetType, bool bBuildDeveloperTools, bool bBuildRequiresCookedData, [NotNullWhen(false)] out string? invalidReason)
{
// Check the platform is allowed
// important note: we don't check the length of the platform allow list, because if an unknown platform was read in, but was not valid, the
// list will exist but be empty. In this case, we need to disallow all platforms from building, otherwise, build errors will occur when
// it starts compiling for _all_ platforms. This means we don't need to check bHasExplicitPlatforms either
if (PlatformAllowList != null && !PlatformAllowList.Contains(Platform))
{
invalidReason = $"PlatformAllowList does not include {Platform}";
return false;
}
// Check the platform is not denied
if (PlatformDenyList != null && PlatformDenyList.Contains(Platform))
{
invalidReason = $"PlatformDenyList includes {Platform}";
return false;
}
// Check the target is allowed
if (TargetAllowList != null && TargetAllowList.Length > 0 && !TargetAllowList.Contains(TargetType))
{
invalidReason = $"TargetAllowList does not include {TargetType}";
return false;
}
// Check the target is not denied
if (TargetDenyList != null && TargetDenyList.Contains(TargetType))
{
invalidReason = $"PlatformDenyList includes {TargetType}";
return false;
}
// Check the target configuration is allowed
if (TargetConfigurationAllowList != null && TargetConfigurationAllowList.Length > 0 && !TargetConfigurationAllowList.Contains(Configuration))
{
invalidReason = $"TargetConfigurationAllowList does not include {Configuration}";
return false;
}
// Check the target configuration is not denied
if (TargetConfigurationDenyList != null && TargetConfigurationDenyList.Contains(Configuration))
{
invalidReason = $"TargetConfigurationDenyList includes {Configuration}";
return false;
}
if (TargetType == TargetType.Program)
{
// Check the program name is on the allow list. Note that this behavior is slightly different to other allow/deny checks; we will allow a module of any type if it's explicitly allowed for this program.
if (ProgramAllowList != null && ProgramAllowList.Length > 0)
{
if (!ProgramAllowList.Contains(TargetName))
{
invalidReason = $"ProgramAllowList does not include {TargetName}";
return false;
}
invalidReason = null;
return true;
}
// Check the program name is not denied
if (ProgramDenyList != null && ProgramDenyList.Contains(TargetName))
{
invalidReason = $"ProgramDenyList includes {TargetName}";
return false;
}
}
else
{
// Check that the TargetName is allowed
if (GameTargetAllowList != null && GameTargetAllowList.Length > 0 && !GameTargetAllowList.Contains(TargetName))
{
invalidReason = $"GameTargetAllowList does not include {TargetName}";
return false;
}
// Check that the TargetName is not denied
if (GameTargetDenyList != null && GameTargetDenyList.Contains(TargetName))
{
invalidReason = $"GameTargetDenyList includes {TargetName}";
return false;
}
}
// Check the module is compatible with this target.
invalidReason = $"Module Type {Type} not supported for Target Type {TargetType}";
switch (Type)
{
case ModuleHostType.Runtime:
case ModuleHostType.RuntimeNoCommandlet:
return TargetType != TargetType.Program;
case ModuleHostType.RuntimeAndProgram:
return true;
case ModuleHostType.CookedOnly:
return bBuildRequiresCookedData;
case ModuleHostType.UncookedOnly:
return !bBuildRequiresCookedData;
case ModuleHostType.Developer:
return TargetType == TargetType.Editor || TargetType == TargetType.Program;
case ModuleHostType.DeveloperTool:
return bBuildDeveloperTools;
case ModuleHostType.Editor:
case ModuleHostType.EditorNoCommandlet:
return TargetType == TargetType.Editor;
case ModuleHostType.EditorAndProgram:
return TargetType == TargetType.Editor || TargetType == TargetType.Program;
case ModuleHostType.Program:
return TargetType == TargetType.Program;
case ModuleHostType.ServerOnly:
return TargetType != TargetType.Program && TargetType != TargetType.Client;
case ModuleHostType.ClientOnly:
case ModuleHostType.ClientOnlyNoCommandlet:
return TargetType != TargetType.Program && TargetType != TargetType.Server;
}
return false;
}
}
}