Dependency Uptake: download and import a package version props file.

build.proj

@@ -33,7 +33,8 @@
   <Target Name="RestoreDotnetCliBuildFramework"
           Inputs="$(DotnetCliBuildDirectory)/dotnet-cli-build.csproj"
           Outputs="@(RestoreDotnetCliBuildFrameworkOutputs)"
-          DependsOnTargets="WriteNugetConfigFile">
+          DependsOnTargets="DownloadPackageVersionsProps;
+                            WriteNugetConfigFile"/>
 
     <PropertyGroup>
       <ExtraRestoreArgs>$(ExtraRestoreArgs) /p:GeneratePropsFile=$(GeneratePropsFile)</ExtraRestoreArgs>
@@ -46,10 +47,11 @@
 
   <Target Name="BuildTheWholeCli" DependsOnTargets="$(CLITargets)" />
 
+  <Import Project="build/DownloadedPackageVersions.targets" />
+  <Import Project="build/NugetConfigFile.targets" />
   <Import Project="build/GitCommitInfo.targets" />
   <Import Project="build/HostInfo.targets" />
   <Import Project="build/BuildInfo.targets" />
-  <Import Project="build/NugetConfigFile.targets" />
   <Import Project="build/Prepare.targets" />
   <Import Project="build/Compile.targets" />
   <Import Project="build/Package.targets" />

build/DownloadedPackageVersions.targets

@@ -0,0 +1,11 @@
+<Project ToolsVersion="15.0">
+  <Target Name="DownloadPackageVersionsProps">
+    <PropertyGroup>
+      <PB_AssetRootAccessTokenSuffixParam Condition=" '$(PB_AssetRootAccessTokenSuffix)' != '' ">?$(PB_AssetRootAccessTokenSuffix)</PB_AssetRootAccessTokenSuffixParam>
+    </PropertyGroup>
+
+    <DownloadFile Uri="$(PB_PackageVersionPropsUrl)?$(PB_AssetRootAccessTokenSuffixParam)"
+                  DestinationPath="$(DownloadedPackageVersionsProps)"
+                  Condition=" '$(PB_PackageVersionPropsUrl)' != '' " />
+  </Target>
+</Project>

build/InitRepo.props

@@ -4,6 +4,7 @@
     <GitCommitInfoProps>$(GeneratedPropsDir)/GitCommitInfo.props</GitCommitInfoProps>
     <HostInfoProps>$(GeneratedPropsDir)/HostInfo.props</HostInfoProps>
     <BuildInfoProps>$(GeneratedPropsDir)/BuildInfo.props</BuildInfoProps>
+    <DownloadedPackageVersionsProps>$(GeneratedPropsDir)/DownloadedPackageVersions.props</DownloadedPackageVersionsProps>
     <GeneratedNuGetConfig>$(RepoRoot)/NuGet.Config</GeneratedNuGetConfig>
   </PropertyGroup>
 </Project>

build/InitRepo.targets

@@ -1,6 +1,7 @@
 <Project ToolsVersion="15.0">
   <Target Name="WriteDynamicPropsToStaticPropsFiles"
-          DependsOnTargets="WriteNugetConfigFile;
+          DependsOnTargets="DownloadPackageVersionsProps;
+                            WriteNugetConfigFile;
                             BuildDotnetCliBuildFramework;
                             EnsureGeneratedPropsDirectory;
                             WriteGitCommitInfoProps;

dir.props

@@ -25,6 +25,7 @@
   <Import Project="build/BundledSdks.props" />
   <Import Project="build/BundledTemplates.props" />
   <Import Project="build/DependencyVersions.props" />
+  <Import Condition=" Exists('$(DownloadedPackageVersionsProps)') " Project="$(DownloadedPackageVersionsProps)" />
   <Import Project="build/Version.props" />
   <Import Project="build/Branding.props" />