Update build pipeline to publish source-build packages

.azure/pipelines/ci.yml

@@ -754,7 +754,7 @@ stages:
       platform:
         name: 'Managed'
         container: 'mcr.microsoft.com/dotnet-buildtools/prereqs:centos-7-f39df28-20191023143754'
-        buildScript: './eng/build.sh'
+        buildScript: './eng/build.sh $(_PublishArgs)'
         skipPublishValidation: true
 
   # Publish to the BAR

eng/Publishing.props

@@ -32,7 +32,8 @@
         Condition=" '$(PublishInstallerBaseVersion)' == 'true' " />
     <_InstallersToPublish Include="$(ArtifactsDir)installers\**\*.wixlib" UploadPathSegment="Runtime" />
     <_InstallersToPublish Include="$(ArtifactsDir)installers\**\*.zip" UploadPathSegment="Runtime" />
-    <_ChecksumsToPublish Include="$(ArtifactsDir)**\*.sha512" />
+    <_ChecksumsToPublish Include="$(ArtifactsDir)packages\**\*.sha512" />
+    <_ChecksumsToPublish Include="$(ArtifactsDir)installers\**\*.sha512" />
   </ItemGroup>
 
   <Target