Add alias for dotnet workload list command

src/Cake.Common.Tests/Fixtures/Tools/DotNet/Workload/List/DotNetWorkloadListerFixture.cs

@@ -0,0 +1,45 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Collections.Generic;
+using Cake.Common.Tools.DotNet.Workload.List;
+
+namespace Cake.Common.Tests.Fixtures.Tools.DotNet.Workload.List
+{
+    internal sealed class DotNetWorkloadListerFixture : DotNetFixture<DotNetWorkloadListSettings>
+    {
+        public IEnumerable<DotNetWorkloadListItem> Workloads { get; set; }
+
+        public void GivenInstalledWorkloadsResult()
+        {
+            ProcessRunner.Process.SetStandardOutput(new string[]
+            {
+                "Installed Workload Ids      Manifest Version      Installation Source",
+                "--------------------------------------------------------------------------------------",
+                "maui-ios                    6.0.312/6.0.300       VS 17.3.32804.467, VS 17.4.32804.182",
+                "maui-windows                6.0.312/6.0.300       VS 17.3.32804.467, VS 17.4.32804.182",
+                "android                     32.0.301/6.0.300      VS 17.3.32804.467, VS 17.4.32804.182",
+                "",
+                "Use `dotnet workload search` to find additional workloads to install."
+            });
+        }
+
+        public void GivenEmptyInstalledWorkloadsResult()
+        {
+            ProcessRunner.Process.SetStandardOutput(new string[]
+            {
+                "Installed Workload Ids      Manifest Version      Installation Source",
+                "---------------------------------------------------------------------",
+                "",
+                "Use `dotnet workload search` to find additional workloads to install."
+            });
+        }
+
+        protected override void RunTool()
+        {
+            var tool = new DotNetWorkloadLister(FileSystem, Environment, ProcessRunner, Tools);
+            Workloads = tool.List(Settings);
+        }
+    }
+}

src/Cake.Common.Tests/Unit/Tools/DotNet/Workload/List/DotNetWorkloadListTests.cs

@@ -0,0 +1,119 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using Cake.Common.Tests.Fixtures.Tools.DotNet.Workload.List;
+using Cake.Testing;
+using Xunit;
+
+namespace Cake.Common.Tests.Unit.Tools.DotNet.Workload.List
+{
+    public sealed class DotNetWorkloadListTests
+    {
+        public sealed class TheWorkloadListMethod
+        {
+            [Fact]
+            public void Should_Throw_If_Process_Was_Not_Started()
+            {
+                // Given
+                var fixture = new DotNetWorkloadListerFixture();
+                fixture.GivenProcessCannotStart();
+
+                // When
+                var result = Record.Exception(() => fixture.Run());
+
+                // Then
+                AssertEx.IsCakeException(result, ".NET CLI: Process was not started.");
+            }
+
+            [Fact]
+            public void Should_Throw_If_Process_Has_A_Non_Zero_Exit_Code()
+            {
+                // Given
+                var fixture = new DotNetWorkloadListerFixture();
+                fixture.GivenProcessExitsWithCode(1);
+
+                // When
+                var result = Record.Exception(() => fixture.Run());
+
+                // Then
+                AssertEx.IsCakeException(result, ".NET CLI: Process returned an error (exit code 1).");
+            }
+
+            [Fact]
+            public void Should_Throw_If_Settings_Are_Null()
+            {
+                // Given
+                var fixture = new DotNetWorkloadListerFixture();
+                fixture.Settings = null;
+                fixture.GivenDefaultToolDoNotExist();
+
+                // When
+                var result = Record.Exception(() => fixture.Run());
+
+                // Then
+                AssertEx.IsArgumentNullException(result, "settings");
+            }
+
+            [Fact]
+            public void Should_Add_Verbosity_Argument()
+            {
+                // Given
+                var fixture = new DotNetWorkloadListerFixture();
+                fixture.Settings.Verbosity = Common.Tools.DotNet.DotNetVerbosity.Normal;
+
+                // When
+                var result = fixture.Run();
+
+                // Then
+                Assert.Equal("workload list --verbosity normal", result.Args);
+            }
+
+            [Fact]
+            public void Should_Return_Correct_List_Of_Workloads()
+            {
+                // Given
+                var fixture = new DotNetWorkloadListerFixture();
+                fixture.GivenInstalledWorkloadsResult();
+
+                // When
+                var result = fixture.Run();
+
+                // Then
+                Assert.Collection(fixture.Workloads,
+                    item =>
+                    {
+                        Assert.Equal(item.Id, "maui-ios");
+                        Assert.Equal(item.ManifestVersion, "6.0.312/6.0.300");
+                        Assert.Equal(item.InstallationSource, "VS 17.3.32804.467, VS 17.4.32804.182");
+                    },
+                    item =>
+                    {
+                        Assert.Equal(item.Id, "maui-windows");
+                        Assert.Equal(item.ManifestVersion, "6.0.312/6.0.300");
+                        Assert.Equal(item.InstallationSource, "VS 17.3.32804.467, VS 17.4.32804.182");
+                    },
+                    item =>
+                    {
+                        Assert.Equal(item.Id, "android");
+                        Assert.Equal(item.ManifestVersion, "32.0.301/6.0.300");
+                        Assert.Equal(item.InstallationSource, "VS 17.3.32804.467, VS 17.4.32804.182");
+                    });
+            }
+
+            [Fact]
+            public void Should_Return_Empty_List_Of_Workloads()
+            {
+                // Given
+                var fixture = new DotNetWorkloadListerFixture();
+                fixture.GivenEmptyInstalledWorkloadsResult();
+
+                // When
+                var result = fixture.Run();
+
+                // Then
+                Assert.Empty(fixture.Workloads);
+            }
+        }
+    }
+}

src/Cake.Common/Tools/DotNet/DotNetAliases.cs

@@ -23,6 +23,7 @@
 using Cake.Common.Tools.DotNet.Tool;
 using Cake.Common.Tools.DotNet.VSTest;
 using Cake.Common.Tools.DotNet.Workload.Install;
+using Cake.Common.Tools.DotNet.Workload.List;
 using Cake.Common.Tools.DotNet.Workload.Search;
 using Cake.Common.Tools.DotNet.Workload.Uninstall;
 using Cake.Common.Tools.DotNetCore.Build;
@@ -182,7 +183,7 @@ public static void DotNetRestore(this ICakeContext context, string root)
         ///     Sources = new[] {"https://www.example.com/nugetfeed", "https://www.example.com/nugetfeed2"},
         ///     FallbackSources = new[] {"https://www.example.com/fallbacknugetfeed"},
         ///     PackagesDirectory = "./packages",
-        ///     Verbosity = Information,
+        ///     DotNetVerbosity.Information,
         ///     DisableParallel = true,
         ///     InferRuntimes = new[] {"runtime1", "runtime2"}
         /// };
@@ -211,7 +212,7 @@ public static void DotNetRestore(this ICakeContext context, DotNetRestoreSetting
         ///     Sources = new[] {"https://www.example.com/nugetfeed", "https://www.example.com/nugetfeed2"},
         ///     FallbackSources = new[] {"https://www.example.com/fallbacknugetfeed"},
         ///     PackagesDirectory = "./packages",
-        ///     Verbosity = Information,
+        ///     DotNetVerbosity.Information,
         ///     DisableParallel = true,
         ///     InferRuntimes = new[] {"runtime1", "runtime2"}
         /// };
@@ -1907,7 +1908,7 @@ public static IEnumerable<DotNetWorkload> DotNetWorkloadSearch(this ICakeContext
         /// <code>
         /// var settings = new DotNetWorkloadSearchSettings
         /// {
-        ///     Verbosity = Detailed
+        ///     DotNetVerbosity.Detailed
         /// };
         ///
         /// var workloads = DotNetWorkloadSearch("maui", settings);
@@ -2075,5 +2076,68 @@ public static void DotNetWorkloadInstall(this ICakeContext context, IEnumerable<
             var installer = new DotNetWorkloadInstaller(context.FileSystem, context.Environment, context.ProcessRunner, context.Tools);
             installer.Install(workloadIds, settings);
         }
+
+        /// <summary>
+        /// Lists all installed workloads.
+        /// </summary>
+        /// <param name="context">The context.</param>
+        /// <returns>The list of installed workloads.</returns>
+        /// <example>
+        /// <code>
+        /// var workloadIds = DotNetWorkloadList();
+        ///
+        /// foreach (var workloadId in workloadIds)
+        /// {
+        ///      Information($"Installed Workload Id: {workloadId}");
+        /// }
+        /// </code>
+        /// </example>
+        [CakeMethodAlias]
+        [CakeAliasCategory("Workload")]
+        [CakeNamespaceImport("Cake.Common.Tools.DotNet.Workload.List")]
+        public static IEnumerable<DotNetWorkloadListItem> DotNetWorkloadList(this ICakeContext context)
+        {
+            return context.DotNetWorkloadList(null);
+        }
+
+        /// <summary>
+        /// Lists all installed workloads.
+        /// </summary>
+        /// <param name="context">The context.</param>
+        /// <param name="settings">The settings.</param>
+        /// <returns>The list of installed workloads.</returns>
+        /// <example>
+        /// <code>
+        /// var settings = new DotNetWorkloadListSettings
+        /// {
+        ///     Verbosity = DotNetVerbosity.Detailed
+        /// };
+        ///
+        /// var workloads = DotNetWorkloadList(settings);
+        ///
+        /// foreach (var workload in workloads)
+        /// {
+        ///      Information($"Installed Workload Id: {workload.Id}\t Manifest Version: {workload.ManifestVersion}\t Installation Source: {workload.InstallationSource}");
+        /// }
+        /// </code>
+        /// </example>
+        [CakeMethodAlias]
+        [CakeAliasCategory("Workload")]
+        [CakeNamespaceImport("Cake.Common.Tools.DotNet.Workload.List")]
+        public static IEnumerable<DotNetWorkloadListItem> DotNetWorkloadList(this ICakeContext context, DotNetWorkloadListSettings settings)
+        {
+            if (context is null)
+            {
+                throw new ArgumentNullException(nameof(context));
+            }
+
+            if (settings == null)
+            {
+                settings = new DotNetWorkloadListSettings();
+            }
+
+            var lister = new DotNetWorkloadLister(context.FileSystem, context.Environment, context.ProcessRunner, context.Tools);
+            return lister.List(settings);
+        }
     }
 }

src/Cake.Common/Tools/DotNet/Workload/List/DotNetWorkloadListItem.cs

@@ -0,0 +1,40 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+namespace Cake.Common.Tools.DotNet.Workload.List
+{
+    /// <summary>
+    /// An item as returned by <see cref="DotNetWorkloadLister"/>.
+    /// </summary>
+    public sealed class DotNetWorkloadListItem
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DotNetWorkloadListItem" /> class.
+        /// </summary>
+        /// <param name="id">The workload Id.</param>
+        /// <param name="manifestVersion">The workload manifest version.</param>
+        /// <param name="installationSource">The workload installation source.</param>
+        public DotNetWorkloadListItem(string id, string manifestVersion, string installationSource)
+        {
+            Id = id;
+            ManifestVersion = manifestVersion;
+            InstallationSource = installationSource;
+        }
+
+        /// <summary>
+        /// Gets the workload ID.
+        /// </summary>
+        public string Id { get; }
+
+        /// <summary>
+        /// Gets the manifest version of the workload as string.
+        /// </summary>
+        public string ManifestVersion { get; }
+
+        /// <summary>
+        /// Gets the installation source of the workload as string.
+        /// </summary>
+        public string InstallationSource { get; }
+    }
+}

src/Cake.Common/Tools/DotNet/Workload/List/DotNetWorkloadListSettings.cs

@@ -0,0 +1,13 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+namespace Cake.Common.Tools.DotNet.Workload.List
+{
+    /// <summary>
+    /// Contains settings used by <see cref="DotNetWorkloadLister" />.
+    /// </summary>
+    public sealed class DotNetWorkloadListSettings : DotNetSettings
+    {
+    }
+}