[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
https://github.com/discordapp/discord-rpc/issues/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

@@ -15,9 +15,15 @@
 	"Installed": false,
 	"Modules": [
 		{
-			"Name": "discordrpc",
+			"Name": "DiscordRpc",
-			"Type": "Developer",
+			"Type": "Runtime",
-			"LoadingPhase": "Default"
+			"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

@@ -1,7 +1,5 @@
-
+#include "DiscordRpcPrivatePCH.h"
-
 #include "DiscordRpcBlueprint.h"
-
 #include "discord-rpc.h"
 
 DEFINE_LOG_CATEGORY(Discord)

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

@@ -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")));
+        }
+    }
+}

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

@@ -1,27 +0,0 @@
-// Fill out your copyright notice in the Description page of Project Settings.
-
-using System.IO;
-using UnrealBuildTool;
-
-public class discordrpcLibrary : ModuleRules
-{
-	public discordrpcLibrary(ReadOnlyTargetRules Target) : base(Target)
-	{
-		Type = ModuleType.External;
-
-		if (Target.Platform == UnrealTargetPlatform.Win64)
-		{
-			// Add the import library
-			PublicIncludePaths.Add(Path.Combine(ModuleDirectory, "Include"));
-			PublicLibraryPaths.Add(Path.Combine(ModuleDirectory, "x64", "Release"));
-			PublicAdditionalLibraries.Add("discord-rpc.lib");
-
-			// Delay-load the DLL, so we can load it from the right place first
-			PublicDelayLoadDLLs.Add("discord-rpc.dll");
-		}
-        else if (Target.Platform == UnrealTargetPlatform.Mac)
-        {
-            PublicDelayLoadDLLs.Add(Path.Combine(ModuleDirectory, "Mac", "Release", "libdiscord-rpc.dylib"));
-        }
-	}
-}

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

@@ -1,50 +0,0 @@
-// Copyright 1998-2017 Epic Games, Inc. All Rights Reserved.
-
-#include "discordrpc.h"
-#include "Core.h"
-#include "IPluginManager.h"
-#include "ModuleManager.h"
-
-#define LOCTEXT_NAMESPACE "FdiscordrpcModule"
-
-void FdiscordrpcModule::StartupModule()
-{
-    // This code will execute after your module is loaded into memory; the exact timing is specified
-    // in the .uplugin file per-module
-
-    // Get the base directory of this plugin
-    FString BaseDir = IPluginManager::Get().FindPlugin("discordrpc")->GetBaseDir();
-
-    // Add on the relative location of the third party dll and load it
-    FString LibraryPath;
-#if PLATFORM_WINDOWS
-    LibraryPath = FPaths::Combine(
-      *BaseDir, TEXT("Binaries/ThirdParty/discordrpcLibrary/Win64/discord-rpc.dll"));
-#elif PLATFORM_MAC
-    LibraryPath = FPaths::Combine(
-      *BaseDir, TEXT("Source/ThirdParty/discordrpcLibrary/Mac/Release/libdiscord-rpc.dylib"));
-#endif // PLATFORM_WINDOWS
-
-    DiscordLibraryHandle =
-      !LibraryPath.IsEmpty() ? FPlatformProcess::GetDllHandle(*LibraryPath) : nullptr;
-
-    if (!DiscordLibraryHandle) {
-        FMessageDialog::Open(
-          EAppMsgType::Ok, LOCTEXT("ThirdPartyLibraryError", "Failed to load discord-rpc library"));
-    }
-}
-
-void FdiscordrpcModule::ShutdownModule()
-{
-    // This function may be called during shutdown to clean up your module.  For modules that
-    // support dynamic reloading,
-    // we call this function before unloading the module.
-
-    // Free the dll handle
-    FPlatformProcess::FreeDllHandle(DiscordLibraryHandle);
-    DiscordLibraryHandle = nullptr;
-}
-
-#undef LOCTEXT_NAMESPACE
-
-IMPLEMENT_MODULE(FdiscordrpcModule, discordrpc)

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

@@ -1,16 +0,0 @@
-// 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* DiscordLibraryHandle;
-};

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

@@ -1,65 +0,0 @@
-// Copyright 1998-2017 Epic Games, Inc. All Rights Reserved.
-
-using UnrealBuildTool;
-
-public class discordrpc : ModuleRules
-{
-	public discordrpc(ReadOnlyTargetRules Target) : base(Target)
-	{
-        Definitions.Add("DISCORD_DYNAMIC_LIB=1");
-        PCHUsage = ModuleRules.PCHUsageMode.UseExplicitOrSharedPCHs;
-
-		PublicIncludePaths.AddRange(
-			new string[] {
-				"discordrpc/Public"
-				// ... add public include paths required here ...
-			}
-			);
-				
-		
-		PrivateIncludePaths.AddRange(
-			new string[] {
-				"discordrpc/Private",
-                "../../../../../include"
-				// ... add other private include paths required here ...
-			}
-			);
-
-        PublicLibraryPaths.AddRange(
-            new string[] {
-                System.IO.Path.Combine(ModuleDirectory, "../../Binaries/ThirdParty/discordrpcLibrary/", Target.Platform.ToString()),
-			}
-            );
-
-
-        PublicDependencyModuleNames.AddRange(
-			new string[]
-			{
-                "CoreUObject",
-                "Engine",
-                "Slate",
-                "SlateCore",
-                "Core",
-				"discordrpcLibrary",
-				"Projects"
-				// ... add other public dependencies that you statically link with here ...
-			}
-			);
-			
-		
-		PrivateDependencyModuleNames.AddRange(
-			new string[]
-			{
-				// ... add private dependencies that you statically link with here ...	
-			}
-			);
-		
-		
-		DynamicallyLoadedModuleNames.AddRange(
-			new string[]
-			{
-				// ... add any modules that your module loads dynamically here ...
-			}
-			);
-	}
-}