Scope pragma warning disables to specific locations and mark classes as obsolete as requested

Co-authored-by: BrennanConroy <[email protected]>

Author: Copilot

src/DefaultBuilder/src/ConfigureWebHostBuilder.cs

@@ -1,8 +1,6 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-#pragma warning disable CS0618 // Type or member is obsolete
-
 using System.Diagnostics.CodeAnalysis;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Hosting.Infrastructure;
@@ -15,6 +13,7 @@ namespace Microsoft.AspNetCore.Builder;
 /// A non-buildable <see cref="IWebHostBuilder"/> for <see cref="WebApplicationBuilder"/>.
 /// Use <see cref="WebApplicationBuilder.Build"/> to build the <see cref="WebApplicationBuilder"/>.
 /// </summary>
+#pragma warning disable CS0618 // Type or member is obsolete
 public sealed class ConfigureWebHostBuilder : IWebHostBuilder, ISupportsStartup
 {
     private readonly IWebHostEnvironment _environment;
@@ -185,3 +184,4 @@ IWebHostBuilder ISupportsStartup.UseStartup([DynamicallyAccessedMembers(StartupL
         throw new NotSupportedException("UseStartup() is not supported by WebApplicationBuilder.WebHost. Use the WebApplication returned by WebApplicationBuilder.Build() instead.");
     }
 }
+#pragma warning restore CS0618 // Type or member is obsolete

src/Hosting/Abstractions/src/HostingAbstractionsWebHostBuilderExtensions.cs

@@ -1,8 +1,6 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-#pragma warning disable CS0618 // Type or member is obsolete
-
 using System.Diagnostics.CodeAnalysis;
 using System.Globalization;
 using System.Linq;
@@ -15,6 +13,7 @@ namespace Microsoft.AspNetCore.Hosting;
 /// <summary>
 /// Contains extension methods for configuring the <see cref="IWebHostBuilder" />.
 /// </summary>
+#pragma warning disable CS0618 // Type or member is obsolete
 public static class HostingAbstractionsWebHostBuilderExtensions
 {
     /// <summary>
@@ -178,3 +177,4 @@ public static IWebHost Start(this IWebHostBuilder hostBuilder, [StringSyntax(Str
         return host;
     }
 }
+#pragma warning restore CS0618 // Type or member is obsolete

src/Hosting/Abstractions/src/IWebHostBuilder.cs

@@ -1,8 +1,6 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-#pragma warning disable CS0618 // Type or member is obsolete
-
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
@@ -12,6 +10,7 @@ namespace Microsoft.AspNetCore.Hosting;
 /// <summary>
 /// A builder for <see cref="IWebHost"/>.
 /// </summary>
+#pragma warning disable CS0618 // Type or member is obsolete
 public interface IWebHostBuilder
 {
     /// <summary>
@@ -61,3 +60,4 @@ public interface IWebHostBuilder
     /// <returns>The <see cref="IWebHostBuilder"/>.</returns>
     IWebHostBuilder UseSetting(string key, string? value);
 }
+#pragma warning restore CS0618 // Type or member is obsolete

src/Hosting/Hosting/src/GenericHost/HostingStartupWebHostBuilder.cs

@@ -1,8 +1,6 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-#pragma warning disable CS0618 // Type or member is obsolete
-
 using System.Diagnostics.CodeAnalysis;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting.Infrastructure;
@@ -14,6 +12,7 @@ namespace Microsoft.AspNetCore.Hosting;
 
 // We use this type to capture calls to the IWebHostBuilder so the we can properly order calls to
 // to GenericHostWebHostBuilder.
+#pragma warning disable CS0618 // Type or member is obsolete
 internal sealed class HostingStartupWebHostBuilder : IWebHostBuilder, ISupportsStartup, ISupportsUseDefaultServiceProvider
 {
     private readonly GenericWebHostBuilder _builder;
@@ -92,3 +91,4 @@ public IWebHostBuilder UseStartup([DynamicallyAccessedMembers(StartupLinkerOptio
         return _builder.UseStartup(startupFactory);
     }
 }
+#pragma warning restore CS0618 // Type or member is obsolete

src/Hosting/Hosting/src/GenericHost/WebHostBuilderBase.cs

@@ -1,14 +1,13 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-#pragma warning disable CS0618 // Type or member is obsolete
-
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 
 namespace Microsoft.AspNetCore.Hosting;
 
+#pragma warning disable CS0618 // Type or member is obsolete
 internal abstract class WebHostBuilderBase : IWebHostBuilder, ISupportsUseDefaultServiceProvider
 {
     private protected readonly IHostBuilder _builder;
@@ -107,3 +106,4 @@ public IWebHostBuilder UseSetting(string key, string? value)
         return this;
     }
 }
+#pragma warning restore CS0618 // Type or member is obsolete

src/Hosting/Hosting/src/Internal/WebHost.cs

@@ -1,8 +1,6 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-#pragma warning disable CS0618 // Type or member is obsolete
-
 using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
 using System.Linq;
@@ -21,6 +19,7 @@
 
 namespace Microsoft.AspNetCore.Hosting;
 
+[Obsolete("WebHost is obsolete. Use Host.CreateDefaultBuilder or WebApplication.CreateBuilder instead.")]
 internal sealed partial class WebHost : IWebHost, IAsyncDisposable
 {
     private const string DeprecatedServerUrlsKey = "server.urls";

src/Hosting/Hosting/src/WebHostExtensions.cs

@@ -3,8 +3,6 @@
 
 #nullable enable
 
-#pragma warning disable CS0618 // Type or member is obsolete
-
 using Microsoft.AspNetCore.Hosting.Server.Features;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
@@ -14,6 +12,7 @@ namespace Microsoft.AspNetCore.Hosting;
 /// <summary>
 /// Contains extensions for managing the lifecycle of an <see cref="IWebHost"/>.
 /// </summary>
+[Obsolete("WebHostExtensions is obsolete. Use Host.CreateDefaultBuilder or WebApplication.CreateBuilder instead.")]
 public static class WebHostExtensions
 {
     /// <summary>

src/Hosting/TestHost/src/TestServer.cs

@@ -1,8 +1,6 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-#pragma warning disable CS0618 // Type or member is obsolete
-
 using System.Net.Http;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Hosting.Server;
@@ -18,6 +16,7 @@ namespace Microsoft.AspNetCore.TestHost;
 /// </summary>
 public class TestServer : IServer
 {
+#pragma warning disable CS0618 // Type or member is obsolete
     private readonly IWebHost? _hostInstance;
     private bool _disposed;
     private ApplicationWrapper? _application;
@@ -119,6 +118,7 @@ public IWebHost Host
                 ?? throw new InvalidOperationException("The TestServer constructor was not called with a IWebHostBuilder so IWebHost is not available.");
         }
     }
+#pragma warning restore CS0618 // Type or member is obsolete
 
     /// <summary>
     /// Gets the service provider associated with the test server.

src/Hosting/TestHost/src/WebHostBuilderExtensions.cs

@@ -1,8 +1,6 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-#pragma warning disable CS0618 // Type or member is obsolete
-
 using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Net.Http;
@@ -16,6 +14,7 @@ namespace Microsoft.AspNetCore.TestHost;
 /// <summary>
 /// Contains extensions for configuring the <see cref="IWebHostBuilder" /> instance.
 /// </summary>
+#pragma warning disable CS0618 // Type or member is obsolete
 public static class WebHostBuilderExtensions
 {
     /// <summary>
@@ -210,3 +209,4 @@ public Action<TContainer> ConfigureContainer(Action<TContainer> next) =>
             };
     }
 }
+#pragma warning restore CS0618 // Type or member is obsolete

src/Hosting/WindowsServices/src/WebHostService.cs

@@ -1,8 +1,6 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-#pragma warning disable CS0618 // Type or member is obsolete
-
 using System.ComponentModel;
 using System.ServiceProcess;
 using Microsoft.Extensions.DependencyInjection;
@@ -14,6 +12,7 @@ namespace Microsoft.AspNetCore.Hosting.WindowsServices;
 ///     Provides an implementation of a Windows service that hosts ASP.NET Core.
 /// </summary>
 [DesignerCategory("Code")]
+[Obsolete("Use UseWindowsService and AddHostedService instead.")]
 public class WebHostService : ServiceBase
 {
     private readonly IWebHost _host;