[wasm] Remove runtimeconfig.template.json from templates and provide it by default (#102818)

Author: maraf

src/mono/nuget/Microsoft.NET.Runtime.WebAssembly.Wasi.Sdk/Microsoft.NET.Runtime.WebAssembly.Wasi.Sdk.pkgproj

@@ -19,6 +19,8 @@
     <PackageFile Include="$(WasmProjectRoot)build\WasmApp.Common.targets" TargetPath="Sdk" />
 
     <PackageFile Include="$(WasiProjectRoot)build\WasiSdk.Defaults.props" TargetPath="Sdk" />
+    
+    <PackageFile Include="$(WasiProjectRoot)build\wasiconsole.runtimeconfig.template.json" TargetPath="Sdk" />
   </ItemGroup>
 
   <Target Name="_PrepareForPack" BeforeTargets="GetPackageFiles">

src/mono/nuget/Microsoft.NET.Sdk.WebAssembly.Pack/Microsoft.NET.Sdk.WebAssembly.Pack.pkgproj

@@ -8,7 +8,7 @@
   <ItemGroup>
     <ProjectReference Include="$(RepoTasksDir)Microsoft.NET.Sdk.WebAssembly.Pack.Tasks\Microsoft.NET.Sdk.WebAssembly.Pack.Tasks.csproj" />
     <ProjectReference Include="$(WasmProjectRoot)host\WasmAppHost.csproj" />
-    <PackageFile Include="build\*.props;build\*.targets;build\*.web.config" TargetPath="build" />
+    <PackageFile Include="build\*.props;build\*.targets;build\*.web.config;build\*.json" TargetPath="build" />
   </ItemGroup>
 
   <Target Name="_PrepareForPack" BeforeTargets="GetPackageFiles">

src/mono/nuget/Microsoft.NET.Sdk.WebAssembly.Pack/build/Microsoft.NET.Sdk.WebAssembly.Browser.targets

@@ -410,6 +410,12 @@ Copyright (c) .NET Foundation. All rights reserved.
 
   </Target>
 
+  <Target Name="ProvideDefaultUserRuntimeConfig" BeforeTargets="_GenerateRuntimeConfigurationFilesInputCache" Condition="'$(GenerateRuntimeConfigurationFiles)' == 'true'">
+    <PropertyGroup Condition="!Exists('$(UserRuntimeConfig)')">
+      <UserRuntimeConfig>$(MSBuildThisFileDirectory)browser.runtimeconfig.template.json</UserRuntimeConfig>
+    </PropertyGroup>
+  </Target>
+
   <!-- Publish starts here -->
 
   <!-- Make sure that ResolveAssemblyReferences runs early enough to ensure satellite assemblies are populated in the ResolvedFilesToPublish -->

src/mono/wasm/templates/templates/browser/runtimeconfig.template.json renamed to src/mono/nuget/Microsoft.NET.Sdk.WebAssembly.Pack/build/browser.runtimeconfig.template.json

@@ -455,5 +455,11 @@ wasi.start(instance);
     <Exec Condition="'$(OS)' != 'Windows_NT'" Command="chmod a+x &quot;$(_WasmNodeScriptPath)&quot;" />
   </Target>
 
+  <Target Name="ProvideDefaultUserRuntimeConfig" BeforeTargets="_GenerateRuntimeConfigurationFilesInputCache" Condition="'$(GenerateRuntimeConfigurationFiles)' == 'true'">
+    <PropertyGroup Condition="!Exists('$(UserRuntimeConfig)')">
+      <UserRuntimeConfig>$(MSBuildThisFileDirectory)wasiconsole.runtimeconfig.template.json</UserRuntimeConfig>
+    </PropertyGroup>
+  </Target>
+
   <!--<Target Name="_WasmCalculateInitialHeapSize" />-->
 </Project>