enable disabling of Arcade via DisableArcade MSBuild property

Author: jonsequitur

Directory.Build.props

@@ -1,6 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project>
-  <Import Project="Sdk.props" Sdk="Microsoft.DotNet.Arcade.Sdk" />
+  <Import Project="Sdk.props" 
+          Sdk="Microsoft.DotNet.Arcade.Sdk" 
+          Condition="'$(DisableArcade)' != '1'" />
 
   <PropertyGroup>
     <NoWarn>$(NoWarn);NU5125</NoWarn>

Directory.Build.targets

@@ -1,4 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project>
-  <Import Project="Sdk.targets" Sdk="Microsoft.DotNet.Arcade.Sdk" />
+  <Import Project="Sdk.targets" 
+          Sdk="Microsoft.DotNet.Arcade.Sdk"
+          Condition="'$(DisableArcade)' != '1'"  />
 </Project>

src/System.CommandLine.DragonFruit.Tests/System.CommandLine.DragonFruit.Tests.csproj

@@ -19,7 +19,15 @@
   <ItemGroup>
     <PackageReference Include="FluentAssertions" Version="5.3.0" />
     <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
-   </ItemGroup>
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(DisableArcade)' == '1'" >
+    <PackageReference Include="xunit" Version="2.4.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" >
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
 
   <ItemGroup>
     <ProjectReference Include="..\System.CommandLine.DragonFruit\System.CommandLine.DragonFruit.csproj" />

src/System.CommandLine.Rendering.Tests/System.CommandLine.Rendering.Tests.csproj

@@ -22,4 +22,12 @@
     <ProjectReference Include="..\System.CommandLine\System.CommandLine.csproj" />
   </ItemGroup>
 
+  <ItemGroup Condition="'$(DisableArcade)' == '1'" >
+    <PackageReference Include="xunit" Version="2.4.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" >
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
 </Project>

src/System.CommandLine.Suggest.Tests/dotnet-suggest.Tests.csproj

@@ -18,6 +18,14 @@
   <ItemGroup>
     <PackageReference Include="FluentAssertions" Version="5.3.0" />
   </ItemGroup>
+  
+  <ItemGroup Condition="'$(DisableArcade)' == '1'" >
+    <PackageReference Include="xunit" Version="2.4.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" >
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
 
   <ItemGroup>
     <ProjectReference Include="..\System.CommandLine.Suggest\dotnet-suggest.csproj" />