[Unreal] Fix for Shipping Builds (#112)

* Changes to allow plugin to work in Shipping Builds

* Add files via upload

SourceTree is case-insensitive on Windows, fixin

* Remove duplicated directory

* Platform whitelist, mac support, compilation fix.

* Finalization steps

* Mac fix

* Tabs/Spaces consistency.

* Updated build.py
#89

* .gitignore (headers)

* Renamed folder to lowercase

* Removed duplicates

* Revert to lowercase

build.py

@@ -101,18 +101,18 @@ def unreal(ctx):
 
     click.echo('--- Copying libs and header into unreal example')
 
-    UNREAL_PROJECT_PATH = os.path.join(SCRIPT_PATH, 'examples', 'unrealstatus', 'plugins', 'discordrpc')
+    UNREAL_PROJECT_PATH = os.path.join(SCRIPT_PATH, 'examples', 'unrealstatus', 'Plugins', 'discordrpc')
     BUILD_BASE_PATH = os.path.join(SCRIPT_PATH, 'builds', 'win64-dynamic', 'src', 'Release')
 
-    UNREAL_DLL_PATH = os.path.join(UNREAL_PROJECT_PATH, 'Binaries', 'ThirdParty', 'discordrpcLibrary', 'Win64')
+    UNREAL_DLL_PATH = os.path.join(UNREAL_PROJECT_PATH, 'Source', 'ThirdParty', 'DiscordRpcLibrary', 'Win64')
     mkdir_p(UNREAL_DLL_PATH)
     shutil.copy(os.path.join(BUILD_BASE_PATH, 'discord-rpc.dll'), UNREAL_DLL_PATH)
 
-    UNREAL_INCLUDE_PATH = os.path.join(UNREAL_PROJECT_PATH, 'Source', 'ThirdParty', 'discordrpcLibrary', 'Include')
+    UNREAL_INCLUDE_PATH = os.path.join(UNREAL_PROJECT_PATH, 'Source', 'ThirdParty', 'DiscordRpcLibrary', 'Include')
     mkdir_p(UNREAL_INCLUDE_PATH)
     shutil.copy(os.path.join(SCRIPT_PATH, 'include', 'discord-rpc.h'), UNREAL_INCLUDE_PATH)
 
-    UNREAL_LIB_PATH = os.path.join(UNREAL_PROJECT_PATH, 'Source', 'ThirdParty', 'discordrpcLibrary', 'x64', 'Release')
+    UNREAL_LIB_PATH = os.path.join(UNREAL_PROJECT_PATH, 'Source', 'ThirdParty', 'DiscordRpcLibrary', 'Win64')
     mkdir_p(UNREAL_LIB_PATH)
     shutil.copy(os.path.join(BUILD_BASE_PATH, 'discord-rpc.lib'), UNREAL_LIB_PATH)
 

examples/unrealstatus/.gitignore

@@ -73,3 +73,6 @@ Intermediate/
 
 # Cache files for the editor to use
 DerivedDataCache/
+
+# Library headers must be copied automatically by the build script (build.py unreal)
+Plugins/DiscordRpc/Source/ThirdParty/DiscordRpcLibrary/Include

examples/unrealstatus/Plugins/discordrpc/discordrpc.uplugin → examples/unrealstatus/Plugins/discordrpc/DiscordRpc.uplugin

@@ -15,9 +15,15 @@
 	"Installed": false,
 	"Modules": [
 		{
-			"Name": "discordrpc",
-			"Type": "Developer",
-			"LoadingPhase": "Default"
+			"Name": "DiscordRpc",
+			"Type": "Runtime",
+			"LoadingPhase": "PreDefault",
+			"WhitelistPlatforms" :
+			[
+				"Win64",
+				"Linux",
+				"Mac"
+			]
 		}
 	]
 }

examples/unrealstatus/Plugins/discordrpc/Source/DiscordRpc/DiscordRpc.Build.cs

@@ -0,0 +1,57 @@
+// Copyright 1998-2017 Epic Games, Inc. All Rights Reserved.
+
+using UnrealBuildTool;
+using System.IO;
+
+public class DiscordRpc : ModuleRules
+{
+#if WITH_FORWARDED_MODULE_RULES_CTOR
+    public DiscordRpc(ReadOnlyTargetRules Target) : base(Target)
+#else
+    public DiscordRpc(TargetInfo Target)
+#endif
+    {
+        Definitions.Add("DISCORD_DYNAMIC_LIB=1");
+
+        PublicIncludePaths.AddRange(
+            new string[] {
+                "DiscordRpc/Public"
+            }
+            );
+
+        PrivateIncludePaths.AddRange(
+            new string[] {
+                "DiscordRpc/Private"
+            }
+            );
+
+        PublicDependencyModuleNames.AddRange(
+            new string[]
+            {
+                "Core",
+                "DiscordRpcLibrary"
+            }
+            );
+
+        PrivateDependencyModuleNames.AddRange(
+            new string[]
+            {
+                "CoreUObject",
+                "Engine",
+                "Slate",
+                "SlateCore",
+                "Projects"
+            }
+            );
+
+        DynamicallyLoadedModuleNames.AddRange(
+            new string[]
+            {
+                // ... add any modules that your module loads dynamically here ...
+            }
+            );
+
+        string BaseDirectory = Path.GetFullPath(Path.Combine(ModuleDirectory, "..", "..", "Source", "ThirdParty", "DiscordRpcLibrary"));
+        PublicIncludePaths.Add(Path.Combine(BaseDirectory, "Include"));
+    }
+}

examples/unrealstatus/Plugins/discordrpc/Source/DiscordRpc/Private/DiscordRpc.cpp

@@ -0,0 +1,71 @@
+// Copyright 1998-2017 Epic Games, Inc. All Rights Reserved.
+
+#include "DiscordRpcPrivatePCH.h"
+#include "IPluginManager.h"
+#include "ModuleManager.h"
+
+#define LOCTEXT_NAMESPACE "FDiscordRpcModule"
+
+void FDiscordRpcModule::StartupModule()
+{
+#if !PLATFORM_LINUX
+#if defined(DISCORD_DYNAMIC_LIB)
+    // Get the base directory of this plugin
+    FString BaseDir = IPluginManager::Get().FindPlugin("DiscordRpc")->GetBaseDir();
+    const FString SDKDir = FPaths::Combine(*BaseDir, TEXT("Source"), TEXT("ThirdParty"), TEXT("DiscordRpcLibrary"));
+#if PLATFORM_WINDOWS
+    const FString LibName = TEXT("discord-rpc");
+    const FString LibDir = FPaths::Combine(*SDKDir, TEXT("Win64"));
+    if (!LoadDependency(LibDir, LibName, DiscordRpcLibraryHandle)) {
+        FMessageDialog::Open(EAppMsgType::Ok, LOCTEXT(LOCTEXT_NAMESPACE, "Failed to load DiscordRpc plugin. Plug-in will not be functional."));
+        FreeDependency(DiscordRpcLibraryHandle);
+    }
+#elif PLATFORM_MAC
+    const FString LibName = TEXT("libdiscord-rpc");
+    const FString LibDir = FPaths::Combine(*SDKDir, TEXT("Mac"));
+    if (!LoadDependency(LibDir, LibName, DiscordRpcLibraryHandle)) {
+        FMessageDialog::Open(EAppMsgType::Ok, LOCTEXT(LOCTEXT_NAMESPACE, "Failed to load DiscordRpc plugin. Plug-in will not be functional."));
+        FreeDependency(DiscordRpcLibraryHandle);
+    }
+#endif
+#endif
+#endif
+}
+
+void FDiscordRpcModule::ShutdownModule()
+{
+    // Free the dll handle
+#if !PLATFORM_LINUX
+#if defined(DISCORD_DYNAMIC_LIB)
+    FreeDependency(DiscordRpcLibraryHandle);
+#endif
+#endif
+}
+
+bool FDiscordRpcModule::LoadDependency(const FString& Dir, const FString& Name, void*& Handle)
+{
+    FString Lib = Name + TEXT(".") + FPlatformProcess::GetModuleExtension();
+    FString Path = Dir.IsEmpty() ? *Lib : FPaths::Combine(*Dir, *Lib);
+
+    Handle = FPlatformProcess::GetDllHandle(*Path);
+
+    if (Handle == nullptr)
+    {
+        return false;
+    }
+
+    return true;
+}
+
+void FDiscordRpcModule::FreeDependency(void*& Handle)
+{
+    if (Handle != nullptr)
+    {
+        FPlatformProcess::FreeDllHandle(Handle);
+        Handle = nullptr;
+    }
+}
+
+#undef LOCTEXT_NAMESPACE
+
+IMPLEMENT_MODULE(FDiscordRpcModule, DiscordRpc)

examples/unrealstatus/Plugins/discordrpc/Source/discordrpc/Private/DiscordRpcBlueprint.cpp → examples/unrealstatus/Plugins/discordrpc/Source/DiscordRpc/Private/DiscordRpcBlueprint.cpp

@@ -1,7 +1,5 @@
-
-
+#include "DiscordRpcPrivatePCH.h"
 #include "DiscordRpcBlueprint.h"
-
 #include "discord-rpc.h"
 
 DEFINE_LOG_CATEGORY(Discord)
@@ -68,8 +66,8 @@ static void JoinRequestHandler(const DiscordJoinRequest* request)
 }
 
 void UDiscordRpc::Initialize(const FString& applicationId,
-                             bool autoRegister,
-                             const FString& optionalSteamId)
+    bool autoRegister,
+    const FString& optionalSteamId)
 {
     self = this;
     IsConnected = false;
@@ -89,7 +87,7 @@ void UDiscordRpc::Initialize(const FString& applicationId,
     auto appId = StringCast<ANSICHAR>(*applicationId);
     auto steamId = StringCast<ANSICHAR>(*optionalSteamId);
     Discord_Initialize(
-      (const char*)appId.Get(), &handlers, autoRegister, (const char*)steamId.Get());
+        (const char*)appId.Get(), &handlers, autoRegister, (const char*)steamId.Get());
 }
 
 void UDiscordRpc::Shutdown()

examples/unrealstatus/Plugins/discordrpc/Source/DiscordRpc/Private/DiscordRpcPrivatePCH.h

@@ -0,0 +1,2 @@
+#include "Core.h"
+#include "DiscordRpc.h"

examples/unrealstatus/Plugins/discordrpc/Source/DiscordRpc/Public/DiscordRpc.h

@@ -0,0 +1,20 @@
+// Copyright 1998-2017 Epic Games, Inc. All Rights Reserved.
+
+#pragma once
+
+#include "ModuleManager.h"
+
+class FDiscordRpcModule : public IModuleInterface {
+public:
+    /** IModuleInterface implementation */
+    virtual void StartupModule() override;
+    virtual void ShutdownModule() override;
+
+private:
+    /** Handle to the test dll we will load */
+    void* DiscordRpcLibraryHandle;
+
+    /** StartupModule is covered with defines, these functions are the place to put breakpoints */
+    static bool LoadDependency(const FString& Dir, const FString& Name, void*& Handle);
+    static void FreeDependency(void*& Handle);
+};

examples/unrealstatus/Plugins/discordrpc/Source/discordrpc/Public/DiscordRpcBlueprint.h → examples/unrealstatus/Plugins/discordrpc/Source/DiscordRpc/Public/DiscordRpcBlueprint.h

@@ -1,5 +1,3 @@
-
-
 #pragma once
 
 #include "CoreMinimal.h"

examples/unrealstatus/Plugins/discordrpc/Source/ThirdParty/DiscordRpcLibrary/DiscordRpcLibrary.Build.cs

@@ -0,0 +1,59 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+using System.IO;
+using UnrealBuildTool;
+
+public class DiscordRpcLibrary : ModuleRules
+{
+#if WITH_FORWARDED_MODULE_RULES_CTOR
+    public DiscordRpcLibrary(ReadOnlyTargetRules Target) : base(Target)
+#else
+    public DiscordRpcLibrary(TargetInfo Target)
+#endif
+    {
+        Type = ModuleType.External;
+        Definitions.Add("DISCORD_DYNAMIC_LIB=1");
+
+        string BaseDirectory = Path.GetFullPath(Path.Combine(ModuleDirectory, "..", "..", "ThirdParty", "DiscordRpcLibrary"));
+
+        if (Target.Platform == UnrealTargetPlatform.Win64)
+        {
+            string lib = Path.Combine(BaseDirectory, "Win64");
+
+            // Include headers
+            PublicIncludePaths.Add(Path.Combine(BaseDirectory, "Include"));
+
+            // Add the import library
+            PublicLibraryPaths.Add(lib);
+            PublicAdditionalLibraries.Add(Path.Combine(lib, "discord-rpc.lib"));
+
+            // Dynamic
+            RuntimeDependencies.Add(new RuntimeDependency(Path.Combine(lib, "discord-rpc.dll")));
+            PublicDelayLoadDLLs.Add("discord-rpc.dll");
+        }
+        else if (Target.Platform == UnrealTargetPlatform.Linux)
+        {
+            string lib = Path.Combine(BaseDirectory, "Linux", "x86_64-unknown-linux-gnu");
+
+            // Include headers
+            PublicIncludePaths.Add(Path.Combine(BaseDirectory, "Include"));
+
+            // Add the import library
+            PublicLibraryPaths.Add(lib);
+            PublicAdditionalLibraries.Add(Path.Combine(lib, "libdiscord-rpc.so"));
+            RuntimeDependencies.Add(new RuntimeDependency(Path.Combine(lib, "libdiscord-rpc.so")));
+        }
+        else if (Target.Platform == UnrealTargetPlatform.Mac)
+        {
+            string lib = Path.Combine(BaseDirectory, "Mac");
+
+            // Include headers
+            PublicIncludePaths.Add(Path.Combine(BaseDirectory, "Include"));
+
+            // Add the import library
+            PublicLibraryPaths.Add(lib);
+            PublicAdditionalLibraries.Add(Path.Combine(lib, "libdiscord-rpc.dylib"));
+            RuntimeDependencies.Add(new RuntimeDependency(Path.Combine(lib, "libdiscord-rpc.dylib")));
+        }
+    }
+}