From 71bb93253cfdcdd52b2f7f90abaa918640ab0d28 Mon Sep 17 00:00:00 2001
From: Luis Michaelis <me@lmichaelis.de>
Date: Sun, 12 Nov 2023 10:27:29 +0100
Subject: [PATCH] build(platform): copy native libraries base on
 `RuntimeIdentifier`

Also updates the README with instructions on how to install and configure your own project with ZenKitCS.
---
 README.md                                 | 31 +++++++++++++++++++++
 ZenKit/NativeLoader/NativePathResolver.cs |  8 ++++++
 ZenKit/ZenKit.csproj                      | 34 +++++++++++++++++++++--
 ZenKit/ZenKit.targets                     | 16 +++++++----
 4 files changed, 81 insertions(+), 8 deletions(-)

diff --git a/README.md b/README.md
index da82c56..05f33a2 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,37 @@ A C#-library wrapping the [ZenKit](https://github.com/GothicKit/ZenKit) library
 [PiranhaBytes'](https://www.piranha-bytes.com/) early 2000's games [Gothic](https://en.wikipedia.org/wiki/Gothic_(video_game))
 and [Gothic II](https://en.wikipedia.org/wiki/Gothic_II).
 
+## Using
+
+You can install `ZenKitCS` from the [NuGet Package Gallery](https://www.nuget.org/packages/ZenKit). Simply add the
+following snippet to your `.csproj` file, replacing the version with the approprite version identifier from NuGet.
+
+```
+<ItemGroup>
+  <PackageReference Include="ZenKit" Version="x.x.x" />
+</ItemGroup>
+```
+
+To build your project then, you will need to add a `RuntimeIdentifiers` property to your `.csproj`. You can simply
+use this once and copy it the topmost `<PropertyGroup>` in your `.csproj` like this:
+
+```xml
+<PropertyGroup>
+    <!-- ... -->
+    
+    <RuntimeIdentifiers>linux-x64;win-x64;osx-x64;android-arm64</RuntimeIdentifiers>
+
+    <!-- ... -->
+</PropertyGroup>
+```
+
+You can now also build your project for those runtimes by supplying the runtime identifier in `dotnet build` using the
+`-r` parameter. This is how you would build your project for Android:
+
+```
+dotnet build -r android-arm64 -c Release --self-contained
+```
+
 ## Building
 
 You will need:
diff --git a/ZenKit/NativeLoader/NativePathResolver.cs b/ZenKit/NativeLoader/NativePathResolver.cs
index d986af8..5976a18 100644
--- a/ZenKit/NativeLoader/NativePathResolver.cs
+++ b/ZenKit/NativeLoader/NativePathResolver.cs
@@ -12,17 +12,25 @@ public override IEnumerable<string> EnumeratePossibleLibraryLoadTargets(string n
 		{
 			if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
 			{
+				yield return Path.Combine(AppContext.BaseDirectory, $"{name}.dll");
 				yield return Path.Combine(AppContext.BaseDirectory, $"runtimes\\win-x64\\native\\{name}.dll");
 			}
 			else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
 			{
 				if (RuntimeInformation.ProcessArchitecture == Architecture.X64)
+				{
+					yield return Path.Combine(AppContext.BaseDirectory, $"lib{name}.so");
 					yield return Path.Combine(AppContext.BaseDirectory, $"runtimes/linux-x64/native/lib{name}.so");
+				}
 				else if (RuntimeInformation.ProcessArchitecture == Architecture.Arm64)
+				{
+					yield return Path.Combine(AppContext.BaseDirectory, $"lib{name}.so");
 					yield return Path.Combine(AppContext.BaseDirectory, $"runtimes/android-arm64/native/lib{name}.so");
+				}
 			}
 			else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
 			{
+				yield return Path.Combine(AppContext.BaseDirectory, $"lib{name}.dylib");
 				yield return Path.Combine(AppContext.BaseDirectory, $"runtimes/osx-x64/native/lib{name}.dylib");
 			}
 		}
diff --git a/ZenKit/ZenKit.csproj b/ZenKit/ZenKit.csproj
index c71fd27..fbe643b 100644
--- a/ZenKit/ZenKit.csproj
+++ b/ZenKit/ZenKit.csproj
@@ -6,7 +6,7 @@
         <RootNamespace>ZenKit</RootNamespace>
         <PackRelease>true</PackRelease>
         <PackageId>ZenKit</PackageId>
-        <Version>0.1.7</Version>
+        <Version>0.1.9</Version>
         <Authors>Luis Michaelis</Authors>
         <Company>GothicKit</Company>
         <Copyright>© 2023. GothicKit Contributors</Copyright>
@@ -16,19 +16,47 @@
         <PackageReadmeFile>README.md</PackageReadmeFile>
         <RepositoryUrl>https://github.com/GothicKit/ZenKitCS</RepositoryUrl>
         <Description>C#-bindings for ZenKit, the ZenGin asset parser.</Description>
+        
+        <RuntimeIdentifier Condition="$([MSBuild]::IsOSPlatform('Android'))">android-arm64</RuntimeIdentifier>
+        <RuntimeIdentifier Condition="$([MSBuild]::IsOSPlatform('Linux'))">linux-x64</RuntimeIdentifier>
+        <RuntimeIdentifier Condition="$([MSBuild]::IsOSPlatform('macOS'))">osx-x64</RuntimeIdentifier>
+        <RuntimeIdentifier Condition="$([MSBuild]::IsOSPlatform('Windows'))">win-x64</RuntimeIdentifier>
     </PropertyGroup>
 
     <ItemGroup>
         <None Include="..\README.md" Pack="true" PackagePath="/"/>
     </ItemGroup>
     
-    <ItemGroup Label="NativeLibraries">
+    <ItemGroup Label="Packaging">
         <None Include="ZenKit.targets" Pack="true" PackagePath="build" />
+
         <None Include="runtimes\**" Pack="true" PackagePath="runtimes">
-            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+            <CopyToOutputDirectory>Never</CopyToOutputDirectory>
             <PackageCopyToOutput>true</PackageCopyToOutput>
         </None>
     </ItemGroup>
+    
+    <ItemGroup Label="NativeLibraries">
+        <ContentWithTargetPath Include="runtimes\android-arm64\native\libzenkitcapi.so" Condition="'$(RuntimeIdentifier)' == 'android-arm64'">
+            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+            <TargetPath>libzenkitcapi.so</TargetPath>
+        </ContentWithTargetPath>
+
+        <ContentWithTargetPath Include="runtimes\linux-x64\native\libzenkitcapi.so" Condition="'$(RuntimeIdentifier)' == 'linux-x64'">
+            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+            <TargetPath>libzenkitcapi.so</TargetPath>
+        </ContentWithTargetPath>
+
+        <ContentWithTargetPath Include="runtimes\osx-x64\native\libzenkitcapi.dylib" Condition="'$(RuntimeIdentifier)' == 'osx-x64'">
+            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+            <TargetPath>libzenkitcapi.dylib</TargetPath>
+        </ContentWithTargetPath>
+
+        <ContentWithTargetPath Include="runtimes\win-x64\native\zenkitcapi.dll" Condition="'$(RuntimeIdentifier)' == 'win-x64'">
+            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+            <TargetPath>zenkitcapi.dll</TargetPath>
+        </ContentWithTargetPath>
+    </ItemGroup>
 
     <ItemGroup>
         <PackageReference Include="NativeLibraryLoader" Version="1.0.13"/>
diff --git a/ZenKit/ZenKit.targets b/ZenKit/ZenKit.targets
index e187863..f594a88 100644
--- a/ZenKit/ZenKit.targets
+++ b/ZenKit/ZenKit.targets
@@ -1,5 +1,11 @@
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-    <!-- Well, I hate this. -->
+    <PropertyGroup>
+        <RuntimeIdentifier Condition="$([MSBuild]::IsOSPlatform('Android'))">android-arm64</RuntimeIdentifier>
+        <RuntimeIdentifier Condition="$([MSBuild]::IsOSPlatform('Linux'))">linux-x64</RuntimeIdentifier>
+        <RuntimeIdentifier Condition="$([MSBuild]::IsOSPlatform('macOS'))">osx-x64</RuntimeIdentifier>
+        <RuntimeIdentifier Condition="$([MSBuild]::IsOSPlatform('Windows'))">win-x64</RuntimeIdentifier>
+    </PropertyGroup>
+    
     <ItemGroup>
         <NativeAndroid Include="$(MSBuildThisFileDirectory)..\runtimes\android-arm64\native\libzenkitcapi.so" />
         <NativeLinux   Include="$(MSBuildThisFileDirectory)..\runtimes\linux-x64\native\libzenkitcapi.so" />
@@ -7,9 +13,9 @@
         <NativeWindows Include="$(MSBuildThisFileDirectory)..\runtimes\win-x64\native\zenkitcapi.dll" />
     </ItemGroup>
     <Target Name="CopyNativeLibraries" BeforeTargets="Build">
-        <Copy SourceFiles="@(NativeAndroid)" DestinationFiles="$(TargetDir)\runtimes\android-arm64\native\libzenkitcapi.so" ContinueOnError="true" />
-        <Copy SourceFiles="@(NativeLinux)"   DestinationFiles="$(TargetDir)\runtimes\linux-x64\native\libzenkitcapi.so" ContinueOnError="true" />
-        <Copy SourceFiles="@(NativeOSX)"     DestinationFiles="$(TargetDir)\runtimes\osx-x64\native\libzenkitcapi.dylib" ContinueOnError="true" />
-        <Copy SourceFiles="@(NativeWindows)" DestinationFiles="$(TargetDir)\runtimes\win-x64\native\zenkitcapi.dll" ContinueOnError="true" />
+        <Copy SourceFiles="@(NativeAndroid)" Condition="'$(RuntimeIdentifier)' == 'android-arm64'" DestinationFiles="$(TargetDir)\libzenkitcapi.so" ContinueOnError="true" />
+        <Copy SourceFiles="@(NativeLinux)"   Condition="'$(RuntimeIdentifier)' == 'linux-x64'" DestinationFiles="$(TargetDir)\libzenkitcapi.so" ContinueOnError="true" />
+        <Copy SourceFiles="@(NativeOSX)"     Condition="'$(RuntimeIdentifier)' == 'osx-x64'" DestinationFiles="$(TargetDir)\libzenkitcapi.dylib" ContinueOnError="true" />
+        <Copy SourceFiles="@(NativeWindows)" Condition="'$(RuntimeIdentifier)' == 'win-x64'" DestinationFiles="$(TargetDir)\zenkitcapi.dll" ContinueOnError="true" />
     </Target>
 </Project>