Create a prototype of Microsoft.AspNetCore.App.RefOnly

pkg/.gitignore

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+feed/
+publish/
+obj/
+ref/
+.dotnet/

pkg/Microsoft.AspNetCore.App.RefOnly/Microsoft.AspNetCore.App.RefOnly.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>netcoreapp2.1</TargetFramework>
+        <_AspNetCoreAppSharedFxIsEnabled>false</_AspNetCoreAppSharedFxIsEnabled>
+        <RestoreSources>https://api.nuget.org/v3/index.json</RestoreSources>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Microsoft.AspNetCore.App" Version="2.1.0" />
+    </ItemGroup>
+</Project>

pkg/Microsoft.AspNetCore.App.RefOnly/Microsoft.AspNetCore.App.RefOnly.nuspec

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+<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2013/05/nuspec.xsd">
+  <metadata>
+    <id>Microsoft.AspNetCore.App.RefOnly</id>
+    <version>2.1.0</version>
+    <authors>Microsoft</authors>
+    <owners>Microsoft</owners>
+    <requireLicenseAcceptance>true</requireLicenseAcceptance>
+    <licenseUrl>https://raw.githubusercontent.com/aspnet/Home/2.0.0/LICENSE.txt</licenseUrl>
+    <projectUrl>https://asp.net/</projectUrl>
+    <iconUrl>https://go.microsoft.com/fwlink/?LinkID=288859</iconUrl>
+    <description>Microsoft.AspNetCore.App</description>
+    <copyright>© Microsoft Corporation. All rights reserved.</copyright>
+    <tags>aspnetcore</tags>
+    <serviceable>true</serviceable>
+    <repository type="git" url="https://github.com/aspnet/Universe"/>
+    <dependencies>
+      <group targetFramework=".NETCoreApp2.1">
+      </group>
+    </dependencies>
+  </metadata>
+  <files>
+    <file src="build\**\*" target="build" />
+    <file src="ref\**\*" target="ref" />
+    <file src="lib\**\*" target="lib" />
+  </files>
+</package>

pkg/Microsoft.AspNetCore.App.RefOnly/build/netcoreapp2.1/Microsoft.AspNetCore.App.RefOnly.targets

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+<Project>
+  <PropertyGroup>
+    <MicrosoftNETPlatformLibrary>Microsoft.AspNetCore.App.RefOnly</MicrosoftNETPlatformLibrary>
+  </PropertyGroup>
+
+  <Target Name="EnsureTFMCompatibility" BeforeTargets="_CheckForInvalidConfigurationAndPlatform">
+    <Error
+      Text="This version of Microsoft.AspNetCore.App is only compatible with the netcoreapp2.1 target framework. Please target netcoreapp2.1 or choose a version of Microsoft.AspNetCore.App compatible with $(TargetFramework)."
+      Condition="'$(TargetFramework)' != 'netcoreapp2.1'"/>
+  </Target>
+</Project>

pkg/build.ps1

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+$ErrorActionPreference = 'stop'
+
+mkdir -p "$PSScriptRoot/obj" -ea ignore | out-null
+
+function Invoke-Block ([scriptblock] $_cmd) {
+    & $_cmd
+    if ((-not $?) -or ($LASTEXITCODE -ne 0)) {
+        throw "command failed"
+    }
+}
+
+$nuget = "$PSScriptRoot/obj/nuget.exe"
+if (-not (Test-Path $nuget)) {
+    iwr -o $nuget https://dist.nuget.org/win-x86-commandline/latest/nuget.exe
+}
+
+$dotnet = "$PSScriptRoot/.dotnet/dotnet"
+$dotnetInstall = "$PSScriptRoot/obj/dotnet-install.ps1"
+if (-not (Test-Path $dotnetInstall)) {
+    iwr -o $dotnetInstall https://raw.githubusercontent.com/dotnet/cli/release/2.1.3xx/scripts/obtain/dotnet-install.ps1
+}
+& $dotnetInstall -installdir "$PSScriptRoot/.dotnet" -version 2.1.300
+Copy-Item -Recurse "$PSScriptRoot/.dotnet/shared/Microsoft.AspNetCore.App" "$PSScriptRoot/.dotnet/shared/Microsoft.AspNetCore.App.RefOnly"
+mv "$PSScriptRoot/.dotnet/shared/Microsoft.AspNetCore.App.RefOnly/2.1.0/Microsoft.AspNetCore.App.deps.json" "$PSScriptRoot/.dotnet/shared/Microsoft.AspNetCore.App.RefOnly/2.1.0/Microsoft.AspNetCore.App.RefOnly.deps.json"
+mv "$PSScriptRoot/.dotnet/shared/Microsoft.AspNetCore.App.RefOnly/2.1.0/Microsoft.AspNetCore.App.runtimeconfig.json" "$PSScriptRoot/.dotnet/shared/Microsoft.AspNetCore.App.RefOnly/2.1.0/Microsoft.AspNetCore.App.RefOnly.runtimeconfig.json"
+$refsPublish = "$PSScriptRoot/Microsoft.AspNetCore.App.RefOnly/ref/netcoreapp2.1"
+Invoke-Block { & $dotnet publish Microsoft.AspNetCore.App.RefOnly/Microsoft.AspNetCore.App.RefOnly.csproj --output $refsPublish }
+rm "$refsPublish/Microsoft.AspNetCore.App.RefOnly.dll"
+rm "$refsPublish/runtimes/" -Recurse
+rm "$refsPublish/*.json"
+Invoke-Block { & $nuget pack "$PSScriptRoot/Microsoft.AspNetCore.App.RefOnly/Microsoft.AspNetCore.App.RefOnly.nuspec" -OutputDirectory "$PSScriptRoot/feed" }
+
+rm $env:USERPROFILE/.nuget/packages/Microsoft.AspNetCore.App.RefOnly -Recurse -ea ignore
+Invoke-Block { & $dotnet publish test/test.csproj -o "$(pwd)/publish/" }
+
+pushd publish
+try {
+    Invoke-Block { & $dotnet test.dll }
+}
+finally {
+    popd
+}

pkg/global.json

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+{
+  "sdk": {
+    "version": "2.1.300"
+  }
+}

pkg/test/Program.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Logging;
+
+namespace test
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            CreateWebHostBuilder(args).Build().Run();
+        }
+
+        public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
+            WebHost.CreateDefaultBuilder(args)
+                .UseStartup<Startup>();
+    }
+}

pkg/test/Startup.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace test
+{
+    public class Startup
+    {
+        // This method gets called by the runtime. Use this method to add services to the container.
+        // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
+        public void ConfigureServices(IServiceCollection services)
+        {
+        }
+
+        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
+        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
+        {
+            if (env.IsDevelopment())
+            {
+                app.UseDeveloperExceptionPage();
+            }
+
+            app.Run(async (context) =>
+            {
+                await context.Response.WriteAsync("Hello World!");
+            });
+        }
+    }
+}

pkg/test/test.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <RestoreSources>https://api.nuget.org/v3/index.json;$(MSBuildProjectDirectory)\..\feed\</RestoreSources>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.App.RefOnly" Version="2.1.0" />
+  </ItemGroup>
+
+</Project>