feat: specify custom runtime library path

Author: zaucy

Source/Ecsact/Public/EcsactUnreal/Ecsact.cpp

@@ -36,10 +36,8 @@ auto FEcsactModule::Abort() -> void {
 }
 
 auto FEcsactModule::LoadEcsactRuntime() -> void {
-	auto ecsact_runtime_path = FPaths::Combine(
-		FPaths::ProjectDir(),
-		TEXT("Binaries/Win64/EcsactRuntime.dll")
-	);
+	const auto* settings = GetDefault<UEcsactSettings>();
+	auto        ecsact_runtime_path = settings->GetEcsactRuntimeLibraryPath();
 	UE_LOG(Ecsact, Log, TEXT("Loading ecsact runtime %s"), *ecsact_runtime_path);
 
 	EcsactRuntimeHandle = FPlatformProcess::GetDllHandle(*ecsact_runtime_path);

Source/Ecsact/Public/EcsactUnreal/EcsactSettings.cpp

@@ -1,8 +1,34 @@
 #include "EcsactUnreal/EcsactSettings.h"
+#include "Misc/Paths.h"
 
 UEcsactSettings::UEcsactSettings() {
 }
 
+auto UEcsactSettings::GetEcsactRuntimeLibraryPath() const -> FString {
+#if WITH_EDITORONLY_DATA
+	if(bEnableBuild) {
+		return FPaths::Combine(
+			FPaths::ProjectDir(),
+			TEXT("Binaries/Win64/EcsactRuntime.dll")
+		);
+	} else {
+		if(!FPaths::IsRelative(CustomEcsactRuntimeLibraryPath)) {
+			return CustomEcsactRuntimeLibraryPath;
+		} else {
+			return FPaths::Combine(
+				FPaths::ProjectDir(),
+				CustomEcsactRuntimeLibraryPath
+			);
+		}
+	}
+#else
+	return FPaths::Combine(
+		FPaths::ProjectDir(),
+		TEXT("Binaries/Win64/EcsactRuntime.dll")
+	);
+#endif
+}
+
 #if WITH_EDITORONLY_DATA
 auto UEcsactSettings::GetValidRecipes() const -> TArray<FString> {
 	return Recipes.FilterByPredicate([](const FString& recipe) -> bool {

Source/Ecsact/Public/EcsactUnreal/EcsactSettings.h

@@ -32,12 +32,49 @@ class ECSACT_API UEcsactSettings : public UObject {
 	UEcsactSettings();
 
 #if WITH_EDITORONLY_DATA
+
 	UPROPERTY(EditAnywhere, Config, Category = "Build")
+	bool bEnableBuild = false;
+
+	/**
+	 * This path is used when not using the built-in ecsact recipe build system.
+	 * (i.e. bEnableBuild is false)
+	 */
+	UPROPERTY(
+		EditAnywhere,
+		Config,
+		Category = "Build",
+		Meta = ( //
+			EditCondition = "!bEnableBuild",
+			EditConditionHides
+		)
+	)
+	FString CustomEcsactRuntimeLibraryPath;
+
+	UPROPERTY(
+		EditAnywhere,
+		Config,
+		Category = "Build",
+		Meta = ( //
+			EditCondition = "bEnableBuild",
+			EditConditionHides
+		)
+	)
 	EEcsactBuildReportFilter BuildReportFilter;
 
-	UPROPERTY(EditAnywhere, Config, Category = "Build")
+	UPROPERTY(
+		EditAnywhere,
+		Config,
+		Category = "Build",
+		Meta = ( //
+			EditCondition = "bEnableBuild",
+			EditConditionHides
+		)
+	)
 	TArray<FString> Recipes;
 
+	auto GetEcsactRuntimeLibraryPath() const -> FString;
+
 	auto GetValidRecipes() const -> TArray<FString>;
 
 #endif

Source/EcsactEditor/Private/EcsactEditor.cpp

@@ -406,10 +406,11 @@ auto FEcsactEditorModule::RunCodegen() -> void {
 auto FEcsactEditorModule::RunBuild() -> void {
 	const auto* settings = GetDefault<UEcsactSettings>();
 
-	auto ecsact_runtime_path = FPaths::Combine(
-		FPaths::ProjectDir(),
-		TEXT("Binaries/Win64/EcsactRuntime.dll")
-	);
+	if(!settings->bEnableBuild) {
+		return;
+	}
+
+	auto ecsact_runtime_path = settings->GetEcsactRuntimeLibraryPath();
 	auto temp_dir = FPaths::ConvertRelativePathToFull(FPaths::Combine(
 		FPaths::ProjectIntermediateDir(),
 		"Temp",