Update Autorest C#

eng/CodeGeneration.targets

@@ -1,13 +1,12 @@
 <Project>
 
   <PropertyGroup>
-    <_AutoRestVersion>https://github.com/Azure/autorest/releases/download/autorest-3.0.6207/autorest-3.0.6207.tgz</_AutoRestVersion>
-    <_AutoRestCoreVersion>3.0.6257</_AutoRestCoreVersion>
-    <_AutoRestCSharpVersion>https://github.com/Azure/autorest.csharp/releases/download/3.0.0-dev.20200402.6/autorest-csharp-v3-3.0.0-dev.20200402.6.tgz</_AutoRestCSharpVersion>
+    <_AutoRestVersion>https://github.com/Azure/autorest/releases/download/autorest-3.0.6221/autorest-3.0.6221.tgz</_AutoRestVersion>
+    <_AutoRestCoreVersion>3.0.6280</_AutoRestCoreVersion>
+    <_AutoRestCSharpVersion>https://github.com/Azure/autorest.csharp/releases/download/3.0.0-dev.20200414.2/autorest-csharp-v3-3.0.0-dev.20200414.2.tgz</_AutoRestCSharpVersion>
     <_SupportsCodeGeneration Condition="'$(IsClientLibrary)' == 'true'">true</_SupportsCodeGeneration>
     <_DefaultInputName Condition="Exists('$(MSBuildProjectDirectory)/autorest.md')">$(MSBuildProjectDirectory)/autorest.md</_DefaultInputName>
     <AutorestInput Condition="'$(AutorestInput)' == ''">$(_DefaultInputName)</AutorestInput>
-    <AutorestConfiguration Condition="'$(AutorestConfiguration)' == '' AND '$(AutorestInput)' != '$(_DefaultInputName)'">$(_DefaultInputName)</AutorestConfiguration>
     <!--
       Allows passing additional AutoRest command line arguments, for example to run in interactive mode 
       use the following command line (remove the space between minus minus): dotnet msbuild /t:GenerateCode /p:AutorestAdditionalParameters="- -interactive"
@@ -21,11 +20,8 @@
   </PropertyGroup>
 
   <Target Name="GenerateCode" Condition="'$(_GenerateCode)' == 'true'" >
-    <PropertyGroup>
-      <_RequireConfigurationArgument Condition="'$(AutorestConfiguration)' != ''">--require=$(AutorestConfiguration)</_RequireConfigurationArgument>
-    </PropertyGroup>
     <RemoveDir Directories="$(MSBuildProjectDirectory)/Generated"/>
-    <Exec Command="npx autorest@$(_AutoRestVersion) --version=$(_AutoRestCoreVersion) $(AutorestInput) $(_RequireConfigurationArgument) $(AutorestAdditionalParameters) --use=$(_AutoRestCSharpVersion) --output-folder=$(MSBuildProjectDirectory) --title=$(RootNamespace) --namespace=$(RootNamespace) --shared-source-folder=$(_SharedCodeDirectory) --verbose" />
+    <Exec Command="npx autorest@$(_AutoRestVersion) --version=$(_AutoRestCoreVersion) $(AutorestInput) $(AutorestAdditionalParameters) --use=$(_AutoRestCSharpVersion) --output-folder=$(MSBuildProjectDirectory) --title=$(RootNamespace) --namespace=$(RootNamespace) --shared-source-folder=$(_SharedCodeDirectory) --verbose" />
   </Target>
 
   <ItemGroup Condition="'$(_GenerateCode)' == 'true'">

sdk/core/Azure.Core/src/Shared/Autorest/CodeGenMemberAttribute.cs

@@ -1,14 +1,31 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
+#nullable enable
+
 using System;
 
 namespace Azure.Core
 {
     [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field)]
     internal class CodeGenMemberAttribute : Attribute
     {
-        public string OriginalName { get; }
+        public string? OriginalName { get; }
+
+        /// <summary>
+        /// For collection properties. When set to true empty collection would be treated as undefined and not serialized.
+        /// </summary>
+        public bool EmptyAsUndefined { get; set; }
+
+        /// <summary>
+        /// For collection and model properties. Whether the property would always be initialized on creation/deserialization.
+        /// Requires a parameterless constructor for implementation type.
+        /// </summary>
+        public bool Initialize { get; set; }
+
+        public CodeGenMemberAttribute()
+        {
+        }
 
         public CodeGenMemberAttribute(string originalName)
         {

sdk/core/Azure.Core/src/Shared/Autorest/CodeGenSuppressAttribute.cs

@@ -5,7 +5,7 @@
 
 namespace Azure.Core
 {
-    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Enum | AttributeTargets.Struct)]
+    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Enum | AttributeTargets.Struct, AllowMultiple = true)]
     internal class CodeGenSuppressAttribute : Attribute
     {
         public string Member { get; }

sdk/core/Azure.Core/src/Shared/Autorest/JsonElementExtensions.cs

@@ -73,6 +73,7 @@ internal static class JsonElementExtensions
         public static TimeSpan GetTimeSpan(in this JsonElement element, string format) => format switch
         {
             "P" => XmlConvert.ToTimeSpan(element.GetString()),
+            "T" => TimeSpan.ParseExact(element.GetString(), "T", CultureInfo.InvariantCulture),
             _ => throw new ArgumentException($"Format is not supported: '{format}'", nameof(format))
         };
 

sdk/core/Azure.Core/src/Shared/Autorest/ManagementPipelineBuilder.cs

@@ -0,0 +1,22 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+#nullable enable
+
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Text.Json;
+using System.Xml;
+using Azure.Core.Pipeline;
+
+namespace Azure.Core
+{
+    internal static class ManagementPipelineBuilder
+    {
+        public static HttpPipeline Build(TokenCredential credential, ClientOptions options)
+        {
+            return HttpPipelineBuilder.Build(options, new BearerTokenAuthenticationPolicy(credential, "https://management.azure.com//.default"));
+        }
+    }
+}

sdk/core/Azure.Core/src/Shared/Autorest/TypeFormatters.cs

@@ -28,6 +28,7 @@ internal class TypeFormatters
         public static string ToString(TimeSpan value, string format) => format switch
         {
             "P" => XmlConvert.ToString(value),
+            "T" => value.ToString("T", CultureInfo.InvariantCulture),
             _ => throw new ArgumentException($"Format is not supported: '{format}'", nameof(format))
         };