Add authentication policy (Azure#47136)

Author: live1206

eng/Packages.Data.props

@@ -252,7 +252,7 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(IsGeneratorLibrary)' == 'true'">
-    <PackageReference Update="Microsoft.Generator.CSharp.ClientModel" Version="1.0.0-alpha.20241111.4" />
+    <PackageReference Update="Microsoft.Generator.CSharp.ClientModel" Version="1.0.0-alpha.20241113.8" />
   </ItemGroup>
 
   <!--

eng/packages/http-client-csharp/ci.yml

@@ -38,6 +38,8 @@ variables:
 extends:
   template: /eng/common/pipelines/templates/archetype-typespec-emitter.yml
   parameters:
+    SparseCheckoutPaths:
+      - /sdk/core/Azure.Core/src/Shared
     BuildPrereleaseVersion: ${{ parameters.BuildPrereleaseVersion }}
     UseTypeSpecNext: ${{ parameters.UseTypeSpecNext }}
     ${{ if eq(variables['System.TeamProject'], 'internal') }}:

eng/packages/http-client-csharp/generator/Azure.Generator/src/Azure.Generator.csproj

@@ -21,5 +21,10 @@
 		</ItemGroup>
 		<Copy SourceFiles="@(SourceDir)" DestinationFolder="$(MSBuildThisFileDirectory)..\..\..\dist\generator\%(RecursiveDir)" />
 	</Target>
+
+	<!-- Include shared code from Azure.Core -->
+	<ItemGroup>
+		<Compile Include="$(MSBuildThisFileDirectory)..\..\..\..\..\..\sdk\core\Azure.Core\src\Shared\AzureKeyCredentialPolicy.cs" LinkBase="Shared/Core" />
+	</ItemGroup>
 
 </Project>

eng/packages/http-client-csharp/generator/Azure.Generator/src/AzureTypeFactory.cs

@@ -15,6 +15,9 @@ namespace Azure.Generator
     /// <inheritdoc/>
     public class AzureTypeFactory : ScmTypeFactory
     {
+        /// <inheritdoc/>
+        public override CSharpType KeyCredentialType => typeof(AzureKeyCredential);
+
         /// <inheritdoc/>
         public override CSharpType ClientUriBuilderBaseType => typeof(RequestUriBuilder);
 

eng/packages/http-client-csharp/generator/Azure.Generator/src/Providers/Abstraction/HttpPipelineProvider.cs

@@ -38,8 +38,8 @@ public override ValueExpression CreateMessage(HttpRequestOptionsApi requestOptio
         public override ClientPipelineApi FromExpression(ValueExpression expression)
             => new HttpPipelineProvider(expression);
 
-        public override ValueExpression PerRetryPolicy(params ValueExpression[] arguments)
-            => Empty; // TODO: implement with default retry policy for Azure
+        public override ValueExpression AuthorizationPolicy(params ValueExpression[] arguments)
+            => New.Instance(typeof(AzureKeyCredentialPolicy), arguments);
 
         public override ClientPipelineApi ToExpression() => this;
 

eng/packages/http-client-csharp/generator/TestProjects/Local/Basic-TypeSpec/src/BasicTypeSpec.csproj

@@ -14,4 +14,9 @@
     <PackageReference Include="System.Text.Json" Version="8.0.5" />
     <PackageReference Include="Azure.Core" Version="1.43.0" />
   </ItemGroup>
+
+	<!-- Include shared code from Azure.Core -->
+	<ItemGroup>
+		<Compile Include="$(MSBuildThisFileDirectory)..\..\..\..\..\..\..\..\sdk\core\Azure.Core\src\Shared\AzureKeyCredentialPolicy.cs" LinkBase="Shared/Core" />
+	</ItemGroup>
 </Project>