Add a flag to enable NuGet.org README.md display (Azure#21157)

Author: pakrym

CONTRIBUTING.md

@@ -9,7 +9,7 @@
 - Install VS 2019 (Community or higher) and make sure you have the latest updates (https://www.visualstudio.com/).
   - Need at least .NET Framework 4.6.1 and 4.7 development tools
 - Install the **.NET Core cross-platform development** workloads in VisualStudio
-- Install **.NET Core 5.0.200 SDK** for your specific platform. (or a higher version within the 5.0.*** band)  (https://dotnet.microsoft.com/download/dotnet-core/5.0)
+- Install **.NET Core 5.0.301 SDK** for your specific platform. (or a higher version within the 5.0.*** band)  (https://dotnet.microsoft.com/download/dotnet-core/5.0)
 - Install the latest version of git (https://git-scm.com/downloads)
 - Install [PowerShell](https://docs.microsoft.com/powershell/scripting/install/installing-powershell), version 6 or higher, if you plan to make public API changes or are working with generated code snippets.
 - Install [NodeJS](https://nodejs.org/) (14.x.x) if you plan to use [C# code generation](https://github.com/Azure/autorest.csharp).

eng/Directory.Build.Common.targets

@@ -1,4 +1,7 @@
 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+  <Import Project="Versioning.targets" />
+
   <Target Name="ValidateTargetFrameworks" BeforeTargets="Build">
     <ItemGroup>
       <RequiredTargetFrameworks Include="$(RequiredTargetFrameworks)" />
@@ -43,6 +46,32 @@
     <Exec ConsoleToMSBuild="true" Command="$(PowerShellExe) -NoProfile -NonInteractive -executionpolicy Unrestricted -File $(CodeChecksScriptPath) -ProjectDirectory $(MSBuildProjectDirectory)"/>
   </Target>
 
+  <PropertyGroup>
+    <OriginalReadmeMdPath>$([MSBuild]::NormalizeDirectory($(MSBuildProjectDirectory)/../))README.md</OriginalReadmeMdPath>
+    <ProcessedReadmeMdPath>$(IntermediateOutputPath)README.md</ProcessedReadmeMdPath>
+    <EnableNuGetReadmeMd Condition="'$(HasReleaseVersion)' == 'false' and Exists('$(OriginalReadmeMdPath)')">true</EnableNuGetReadmeMd>
+    <PackageReadmeFile Condition="'$(EnableNuGetReadmeMd)' == 'true'">README.md</PackageReadmeFile>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Condition="'$(EnableNuGetReadmeMd)' != 'true' and Exists('$(OriginalReadmeMdPath)')" Include="$(OriginalReadmeMdPath)" Pack="true" PackagePath="/"/>
+    <None Condition="'$(EnableNuGetReadmeMd)' == 'true'" Include="$(ProcessedReadmeMdPath)" Pack="true" PackagePath="/"/>
+  </ItemGroup>
+
+  <!-- Process and pack README.md  -->
+  <Target Name="ProcessReadmeMd" BeforeTargets="GenerateNuspec" Condition="'$(EnableNuGetReadmeMd)' == 'true'" >
+    <PropertyGroup>
+      <_ReadmeMdLines>$([System.IO.File]::ReadAllText($(OriginalReadmeMdPath)))</_ReadmeMdLines>
+
+      <!-- remove comments https://github.com/NuGet/NuGetGallery/issues/8627 -->
+      <_ReadmeMdLines><![CDATA[$([System.Text.RegularExpressions.Regex]::Replace('$(_ReadmeMdLines)', '\<\!--.*?-->', ''))]]></_ReadmeMdLines>
+      <!-- remove impressions image -->
+      <_ReadmeMdLines><![CDATA[$([System.Text.RegularExpressions.Regex]::Replace('$(_ReadmeMdLines)', '\!\[Impressions\]\(.*?\)', ''))]]></_ReadmeMdLines>
+    </PropertyGroup>
+
+    <WriteLinesToFile File="$(ProcessedReadmeMdPath)" Lines="$(_ReadmeMdLines)" Overwrite="true" WriteOnlyWhenDifferent="true" />
+  </Target>
+
   <!-- This allows us to build .NET Framework targets on non-windows
     TODO: Move the NETFramework reference assemblies to a feed other then the roslyn feed.
   -->
@@ -68,7 +97,6 @@
   <ItemGroup Condition="'$(IsTestProject)' != 'true'">
     <None Include="$(PackageIconPath)" Pack="true" PackagePath=""/>
     <None Condition="Exists('$(MSBuildProjectDirectory)/../CHANGELOG.md')" Include="$(MSBuildProjectDirectory)/../CHANGELOG.md" Pack="true" PackagePath=""/>
-    <None Condition="Exists('$(MSBuildProjectDirectory)/../README.md')" Include="$(MSBuildProjectDirectory)/../README.md" Pack="true" PackagePath=""/>
   </ItemGroup>
 
   <!-- Add App.config to enable server GC in net461 perf and stress projects -->
@@ -103,8 +131,6 @@
 
   <Import Project="$(DefaultReferenceTargets)" Condition="Exists('$(DefaultReferenceTargets)') And '$(ImportDefaultReferences)'=='true'" />
 
-  <Import Project="Versioning.targets" />
-
   <Import Project="ApiListing.targets" />
 
   <Import Project="CodeCoverage.targets" />

global.json

@@ -3,7 +3,7 @@
     "Microsoft.Build.Traversal": "1.0.45"
   },
   "sdk": {
-    "version": "5.0.200",
+    "version": "5.0.301",
     "rollForward": "feature"
   }
 }

sdk/template/Azure.Template/CHANGELOG.md

@@ -1,5 +1,8 @@
 # Release History
 
+## 1.0.3-beta.19 (2020-09-24)
+- Test Submit-PR
+
 ## 1.0.3-beta.18 (2020-09-24)
 - Test Submit-PR