Dynamically acquire branch info, remove branchinfo.props

.vsts-ci.yml

@@ -301,4 +301,5 @@ stages:
                   /p:DotNetPublishSdkAssetsBlobFeedKey=$(dotnetcli-storage-key)
                   /p:DotnetPublishChecksumsBlobFeedUrl=https://dotnetclichecksums.blob.core.windows.net/dotnet/index.json
                   /p:DotNetPublishChecksumsBlobFeedKey=$(dotnetclichecksums-storage-key)
+                  /p:SourceBranch=$(BUILD.SOURCEBRANCH)
           displayName: Copy to latest

src/CopyToLatest/CopyToLatest.csproj

@@ -3,12 +3,12 @@
     <TargetFramework>$(CoreSdkTargetFramework)</TargetFramework>
     <GenerateRuntimeConfigurationFiles>true</GenerateRuntimeConfigurationFiles>
     <CopyBuildOutputToPublishDirectory>false</CopyBuildOutputToPublishDirectory>
+    <Channel>$(SourceBranch.Replace('refs/heads/', '').Replace('internal/', ''))</Channel>
   </PropertyGroup>
 
-  <Import Project="targets\BranchInfo.props" />
   <Import Project="..\redist\targets\BuildCoreSdkTasks.targets" />
   <Import Project="..\redist\targets\GetRuntimeInformation.targets" />
   <Import Project="..\redist\targets\Versions.targets" />
   
   <Import Project="targets\FinishBuild.targets" />
-</Project>
+</Project>

src/CopyToLatest/targets/BranchInfo.props

@@ -1,5 +0,0 @@
-<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <PropertyGroup>
-    <Channel>master</Channel>
-  </PropertyGroup>
-</Project>