From f6b0196b0f8a7342d4b5fe5709568af9e3ede665 Mon Sep 17 00:00:00 2001
From: Eric Erhardt <eric.erhardt@microsoft.com>
Date: Wed, 25 Jan 2017 23:03:08 -0600
Subject: [PATCH] Turn off multi-proc building of the test .sln to work around
 "cannot access file becuase it is being used by another process" errors.

---
 build/Microsoft.DotNet.Cli.Test.targets        |  1 +
 build_projects/dotnet-cli-build/DotNetBuild.cs | 16 ++++++++++++++--
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/build/Microsoft.DotNet.Cli.Test.targets b/build/Microsoft.DotNet.Cli.Test.targets
index b968033cc..0941fa6c9 100644
--- a/build/Microsoft.DotNet.Cli.Test.targets
+++ b/build/Microsoft.DotNet.Cli.Test.targets
@@ -81,6 +81,7 @@
   <Target Name="BuildTests"
           DependsOnTargets="RestoreTests;">
     <DotNetBuild ToolPath="$(Stage0Directory)"
+                 MaxCpuCount="1"
                  ProjectPath="&quot;$(TestDirectory)/Microsoft.DotNet.Cli.Tests.sln&quot;" />
   </Target>
 
diff --git a/build_projects/dotnet-cli-build/DotNetBuild.cs b/build_projects/dotnet-cli-build/DotNetBuild.cs
index fbe0dcae4..f11ec52f4 100644
--- a/build_projects/dotnet-cli-build/DotNetBuild.cs
+++ b/build_projects/dotnet-cli-build/DotNetBuild.cs
@@ -12,7 +12,7 @@ namespace Microsoft.DotNet.Cli.Build
 
         protected override string Args
         {
-            get { return $"{GetProjectPath()} {GetConfiguration()} {GetFramework()} {GetRuntime()} {GetOutputPath()}"; }
+            get { return $"{GetProjectPath()} {GetConfiguration()} {GetFramework()} {GetRuntime()} {GetOutputPath()} {GetMaxCpuCount()}"; }
         }
 
         public string BuildBasePath { get; set; }
@@ -26,7 +26,9 @@ namespace Microsoft.DotNet.Cli.Build
         public string ProjectPath { get; set; }
 
         public string OutputPath { get; set; }
-        
+
+        public string MaxCpuCount { get; set; }
+
         private string GetOutputPath()
         {
             if (!string.IsNullOrEmpty(OutputPath))
@@ -76,5 +78,15 @@ namespace Microsoft.DotNet.Cli.Build
 
             return null;
         }
+
+        private string GetMaxCpuCount()
+        {
+            if (!string.IsNullOrEmpty(MaxCpuCount))
+            {
+                return $"/maxcpucount:{MaxCpuCount}";
+            }
+
+            return null;
+        }
     }
 }