Title:

     Use -source instead of nuget.config

 Change Description:

     Use the -source argument to nuget.exe instead of nuget.config files.
     Added condition to add \\cpvsbuild source if it exists; this is to work around a bug in DNU that causes restore to fail if the share is unavailable.
     Cleaned up disable of -parallel option to match that of fxcore\open.

[tfs-changeset: 1498317]

Author: jhendrixMSFT

dir.props

@@ -43,11 +43,16 @@
     <ToolsDir Condition="'$(ToolsDir)'==''">$(PackagesDir)Microsoft.DotNet.BuildTools.$(BuildToolsVersion)/lib/</ToolsDir>
   </PropertyGroup>
 
+  <!-- list of nuget package sources passed to nuget.exe -->
+  <ItemGroup>
+    <NuGetSourceList Include="https://www.myget.org/F/dotnet-buildtools" />
+  </ItemGroup>
+
   <!-- Common nuget properties -->
   <PropertyGroup>
     <NuGetToolPath Condition="'$(NuGetToolPath)'==''">$(PackagesDir)NuGet.exe</NuGetToolPath>
-    <NuGetConfigFile Condition="'$(NuGetConfigFile)'==''">$(SourceDir)NuGet.Config</NuGetConfigFile>
-    <NuGetConfigCommandLine>-ConfigFile "$(NuGetConfigFile)"</NuGetConfigCommandLine>
+    <NuGetPackageSource>@(NuGetSourceList -> '-source %(Identity)', ' ')</NuGetPackageSource>
+    <NuGetConfigCommandLine>$(NuGetPackageSource)</NuGetConfigCommandLine>
 
     <NugetRestoreCommand>"$(NuGetToolPath)"</NugetRestoreCommand>
     <NugetRestoreCommand>$(NugetRestoreCommand) install</NugetRestoreCommand>