Added --azure-credential-type option that can be used to specify the credential type for Azure authentication.

src/Sign.Cli/AzureCredentialOptions.cs

@@ -13,6 +13,11 @@ namespace Sign.Cli
 {
     internal sealed class AzureCredentialOptions
     {
+        internal Option<string?> CredentialTypeOption = new Option<string?>(["--azure-credential-type", "-act"], Resources.CredentialTypeOptionDescription).FromAmong(
+            AzureCredentialType.AzureCli,
+            AzureCredentialType.AzurePowerShell,
+            AzureCredentialType.ManagedIdentity,
+            AzureCredentialType.WorkloadIdentity);
         internal Option<string?> ManagedIdentityClientIdOption = new(["--managed-identity-client-id", "-mici"], Resources.ManagedIdentityClientIdOptionDescription);
         internal Option<string?> ManagedIdentityResourceIdOption = new(["--managed-identity-resource-id", "-miri"], Resources.ManagedIdentityResourceIdOptionDescription);
         internal Option<bool?> ObsoleteManagedIdentityOption { get; } = new(["--azure-key-vault-managed-identity", "-kvm"], Resources.ManagedIdentityOptionDescription) { IsHidden = true };
@@ -22,6 +27,7 @@ internal sealed class AzureCredentialOptions
 
         internal void AddOptionsToCommand(Command command)
         {
+            command.AddOption(CredentialTypeOption);
             command.AddOption(ManagedIdentityClientIdOption);
             command.AddOption(ManagedIdentityResourceIdOption);
             command.AddOption(ObsoleteManagedIdentityOption);
@@ -70,10 +76,38 @@ internal DefaultAzureCredentialOptions CreateDefaultAzureCredentialOptions(Parse
                 return new ClientSecretCredential(tenantId, clientId, secret);
             }
 
-            DefaultAzureCredentialOptions options = CreateDefaultAzureCredentialOptions(context.ParseResult);
+            switch (context.ParseResult.GetValueForOption(CredentialTypeOption))
+            {
+                case AzureCredentialType.AzureCli:
+                    return new AzureCliCredential();
+
+                case AzureCredentialType.AzurePowerShell:
+                    return new AzurePowerShellCredential();
+
+                case AzureCredentialType.ManagedIdentity:
+                    string? managedIdentityClientId = context.ParseResult.GetValueForOption(ManagedIdentityClientIdOption);
+                    if (managedIdentityClientId is not null)
+                    {
+                        return new ManagedIdentityCredential(managedIdentityClientId);
+                    }
+
+                    string? managedIdentityResourceId = context.ParseResult.GetValueForOption(ManagedIdentityResourceIdOption);
+                    if (managedIdentityResourceId is not null)
+                    {
+                        return new ManagedIdentityCredential(new ResourceIdentifier(managedIdentityResourceId));
+                    }
 
-            // CodeQL [SM05137] Sign CLI is not a production service.
-            return new DefaultAzureCredential(options);
+                    return new ManagedIdentityCredential();
+
+                case AzureCredentialType.WorkloadIdentity:
+                    return new WorkloadIdentityCredential();
+
+                default:
+                    DefaultAzureCredentialOptions options = CreateDefaultAzureCredentialOptions(context.ParseResult);
+
+                    // CodeQL [SM05137] Sign CLI is not a production service.
+                    return new DefaultAzureCredential(options);
+            }
         }
     }
 }

src/Sign.Cli/AzureCredentialType.cs

@@ -0,0 +1,14 @@
+// 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.txt file in the project root for more information.
+
+namespace Sign.Cli
+{
+    internal static class AzureCredentialType
+    {
+        public const string AzureCli = "azure-cli";
+        public const string AzurePowerShell = "azure-powershell";
+        public const string ManagedIdentity = "managed-identity";
+        public const string WorkloadIdentity = "workload-identity";
+    }
+}

src/Sign.Cli/Resources.resx

@@ -234,4 +234,7 @@
     <value>Warning:  The Microsoft Visual C++ 14 runtime is required but was not detected on your system.  Download and install from https://aka.ms/vs/17/release/vc_redist.x64.exe</value>
     <comment>{Locked="https://aka.ms/vs/17/release/vc_redist.x64.exe"} is a URL.</comment>
   </data>
+  <data name="CredentialTypeOptionDescription" xml:space="preserve">
+    <value>Azure credential type that will be used. This defaults to DefaultAzureCredential.</value>
+  </data>
 </root>

src/Sign.Cli/xlf/Resources.cs.xlf

@@ -37,6 +37,11 @@
         <target state="translated">Podepisovat binární soubory a kontejnery.</target>
         <note />
       </trans-unit>
+      <trans-unit id="CredentialTypeOptionDescription">
+        <source>Azure credential type that will be used. This defaults to DefaultAzureCredential.</source>
+        <target state="new">Azure credential type that will be used. This defaults to DefaultAzureCredential.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DescriptionOptionDescription">
         <source>Description of the signing certificate.</source>
         <target state="translated">Popis podpisového certifikátu.</target>

src/Sign.Cli/xlf/Resources.de.xlf

@@ -37,6 +37,11 @@
         <target state="translated">Signieren Sie Binärdateien und Container.</target>
         <note />
       </trans-unit>
+      <trans-unit id="CredentialTypeOptionDescription">
+        <source>Azure credential type that will be used. This defaults to DefaultAzureCredential.</source>
+        <target state="new">Azure credential type that will be used. This defaults to DefaultAzureCredential.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DescriptionOptionDescription">
         <source>Description of the signing certificate.</source>
         <target state="translated">Beschreibung des Signaturzertifikats.</target>

src/Sign.Cli/xlf/Resources.es.xlf

@@ -37,6 +37,11 @@
         <target state="translated">Firmar archivos binarios y contenedores.</target>
         <note />
       </trans-unit>
+      <trans-unit id="CredentialTypeOptionDescription">
+        <source>Azure credential type that will be used. This defaults to DefaultAzureCredential.</source>
+        <target state="new">Azure credential type that will be used. This defaults to DefaultAzureCredential.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DescriptionOptionDescription">
         <source>Description of the signing certificate.</source>
         <target state="translated">Descripción del certificado de firma.</target>

src/Sign.Cli/xlf/Resources.fr.xlf

@@ -37,6 +37,11 @@
         <target state="translated">Signer les fichiers binaires et les conteneurs.</target>
         <note />
       </trans-unit>
+      <trans-unit id="CredentialTypeOptionDescription">
+        <source>Azure credential type that will be used. This defaults to DefaultAzureCredential.</source>
+        <target state="new">Azure credential type that will be used. This defaults to DefaultAzureCredential.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DescriptionOptionDescription">
         <source>Description of the signing certificate.</source>
         <target state="translated">Description du certificat de signature.</target>

src/Sign.Cli/xlf/Resources.it.xlf

@@ -37,6 +37,11 @@
         <target state="translated">Consente di firmare file binari e contenitori.</target>
         <note />
       </trans-unit>
+      <trans-unit id="CredentialTypeOptionDescription">
+        <source>Azure credential type that will be used. This defaults to DefaultAzureCredential.</source>
+        <target state="new">Azure credential type that will be used. This defaults to DefaultAzureCredential.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DescriptionOptionDescription">
         <source>Description of the signing certificate.</source>
         <target state="translated">Descrizione del certificato di firma.</target>

src/Sign.Cli/xlf/Resources.ja.xlf

@@ -37,6 +37,11 @@
         <target state="translated">バイナリとコンテナーに署名します。</target>
         <note />
       </trans-unit>
+      <trans-unit id="CredentialTypeOptionDescription">
+        <source>Azure credential type that will be used. This defaults to DefaultAzureCredential.</source>
+        <target state="new">Azure credential type that will be used. This defaults to DefaultAzureCredential.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DescriptionOptionDescription">
         <source>Description of the signing certificate.</source>
         <target state="translated">署名証明書の説明。</target>

src/Sign.Cli/xlf/Resources.ko.xlf

@@ -37,6 +37,11 @@
         <target state="translated">이진 파일 및 컨테이너에 서명합니다.</target>
         <note />
       </trans-unit>
+      <trans-unit id="CredentialTypeOptionDescription">
+        <source>Azure credential type that will be used. This defaults to DefaultAzureCredential.</source>
+        <target state="new">Azure credential type that will be used. This defaults to DefaultAzureCredential.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DescriptionOptionDescription">
         <source>Description of the signing certificate.</source>
         <target state="translated">서명 인증서에 대한 설명입니다.</target>

src/Sign.Cli/xlf/Resources.pl.xlf

@@ -37,6 +37,11 @@
         <target state="translated">Podpisz pliki binarne i kontenery.</target>
         <note />
       </trans-unit>
+      <trans-unit id="CredentialTypeOptionDescription">
+        <source>Azure credential type that will be used. This defaults to DefaultAzureCredential.</source>
+        <target state="new">Azure credential type that will be used. This defaults to DefaultAzureCredential.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DescriptionOptionDescription">
         <source>Description of the signing certificate.</source>
         <target state="translated">Opis certyfikatu podpisywania.</target>

src/Sign.Cli/xlf/Resources.pt-BR.xlf

@@ -37,6 +37,11 @@
         <target state="translated">Autenticar contêineres e binários.</target>
         <note />
       </trans-unit>
+      <trans-unit id="CredentialTypeOptionDescription">
+        <source>Azure credential type that will be used. This defaults to DefaultAzureCredential.</source>
+        <target state="new">Azure credential type that will be used. This defaults to DefaultAzureCredential.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DescriptionOptionDescription">
         <source>Description of the signing certificate.</source>
         <target state="translated">Descrição do certificado de autenticação.</target>

src/Sign.Cli/xlf/Resources.ru.xlf

@@ -37,6 +37,11 @@
         <target state="translated">Подписывание двоичных файлов и контейнеров.</target>
         <note />
       </trans-unit>
+      <trans-unit id="CredentialTypeOptionDescription">
+        <source>Azure credential type that will be used. This defaults to DefaultAzureCredential.</source>
+        <target state="new">Azure credential type that will be used. This defaults to DefaultAzureCredential.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DescriptionOptionDescription">
         <source>Description of the signing certificate.</source>
         <target state="translated">Описание сертификата для подписи</target>

src/Sign.Cli/xlf/Resources.tr.xlf

@@ -37,6 +37,11 @@
         <target state="translated">İkili dosyaları ve kapsayıcıları imzalayın.</target>
         <note />
       </trans-unit>
+      <trans-unit id="CredentialTypeOptionDescription">
+        <source>Azure credential type that will be used. This defaults to DefaultAzureCredential.</source>
+        <target state="new">Azure credential type that will be used. This defaults to DefaultAzureCredential.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DescriptionOptionDescription">
         <source>Description of the signing certificate.</source>
         <target state="translated">İmzalama sertifikasının açıklaması.</target>

src/Sign.Cli/xlf/Resources.zh-Hans.xlf

@@ -37,6 +37,11 @@
         <target state="translated">对二进制文件和容器进行签名。</target>
         <note />
       </trans-unit>
+      <trans-unit id="CredentialTypeOptionDescription">
+        <source>Azure credential type that will be used. This defaults to DefaultAzureCredential.</source>
+        <target state="new">Azure credential type that will be used. This defaults to DefaultAzureCredential.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DescriptionOptionDescription">
         <source>Description of the signing certificate.</source>
         <target state="translated">签名证书的说明。</target>

src/Sign.Cli/xlf/Resources.zh-Hant.xlf

@@ -37,6 +37,11 @@
         <target state="translated">簽署二進位檔和容器。</target>
         <note />
       </trans-unit>
+      <trans-unit id="CredentialTypeOptionDescription">
+        <source>Azure credential type that will be used. This defaults to DefaultAzureCredential.</source>
+        <target state="new">Azure credential type that will be used. This defaults to DefaultAzureCredential.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DescriptionOptionDescription">
         <source>Description of the signing certificate.</source>
         <target state="translated">簽署憑證的描述。</target>

test/Sign.Cli.Test/AzureCredentialOptionsTests.cs

@@ -4,7 +4,10 @@
 
 using System.CommandLine;
 using System.CommandLine.Builder;
+using System.CommandLine.Completions;
+using System.CommandLine.Invocation;
 using System.CommandLine.Parsing;
+using Azure.Core;
 using Azure.Identity;
 using Moq;
 using Sign.Core;
@@ -24,6 +27,30 @@ public AzureCredentialOptionsTests()
             _options = _command.AzureCredentialOptions;
         }
 
+        [Fact]
+        public void CredentialTypeOption_Always_HasArityOfExactlyOne()
+        {
+            Assert.Equal(ArgumentArity.ExactlyOne, _options.CredentialTypeOption.Arity);
+        }
+
+        [Fact]
+        public void CredentialTypeOption_Always_IsNotRequired()
+        {
+            Assert.False(_options.CredentialTypeOption.IsRequired);
+        }
+
+        [Fact]
+        public void CredentialTypeOption_Always_HasCorrectCompletions()
+        {
+            CompletionItem[] completions = [.. _options.CredentialTypeOption.GetCompletions()];
+
+            Assert.Equal(4, completions.Length);
+            Assert.Equal("azure-cli", completions[0].Label);
+            Assert.Equal("azure-powershell", completions[1].Label);
+            Assert.Equal("managed-identity", completions[2].Label);
+            Assert.Equal("workload-identity", completions[3].Label);
+        }
+
         [Fact]
         public void ManagedIdentityClientIdOption_Always_HasArityOfExactlyOne()
         {
@@ -127,6 +154,7 @@ public void AddOptionsToCommand_Always_AddsAllOptionsToCommand()
 
             _options.AddOptionsToCommand(command);
 
+            Assert.Contains(_options.CredentialTypeOption, command.Options);
             Assert.Contains(_options.ManagedIdentityClientIdOption, command.Options);
             Assert.Contains(_options.ManagedIdentityResourceIdOption, command.Options);
             Assert.Contains(_options.ObsoleteManagedIdentityOption, command.Options);
@@ -172,5 +200,71 @@ public void CreateDefaultAzureCredentialOptions_WhenNoOptionsAreSpecified_Exclud
             Assert.False(credentialOptions.ExcludeVisualStudioCredential);
             Assert.False(credentialOptions.ExcludeWorkloadIdentityCredential);
         }
+
+        [Fact]
+        public void CreateTokenCredential_WhenClientSecretOptionsAreSet_ReturnsClientSecretCredential()
+        {
+            ParseResult result = _parser.Parse("azure-key-vault -kvu https://keyvault.test -kvc a -kvt b -kvi c -kvs d e");
+            InvocationContext invocationContext = new(result);
+
+            TokenCredential? tokenCredential = _options.CreateTokenCredential(invocationContext);
+
+            Assert.IsType<ClientSecretCredential>(tokenCredential);
+        }
+
+        [Fact]
+        public void CreateTokenCredential_WhenCredentialTypeIsAzureCli_ReturnsAzureCliCredential()
+        {
+            ParseResult result = _parser.Parse("azure-key-vault -kvu https://keyvault.test -kvc a -act azure-cli b");
+            InvocationContext invocationContext = new(result);
+
+            TokenCredential? tokenCredential = _options.CreateTokenCredential(invocationContext);
+
+            Assert.IsType<AzureCliCredential>(tokenCredential);
+        }
+
+        [Fact]
+        public void CreateTokenCredential_WhenCredentialTypeIsAzurePowerShell_ReturnsAzurePowerShellCredential()
+        {
+            ParseResult result = _parser.Parse("azure-key-vault -kvu https://keyvault.test -kvc a -act azure-powershell b");
+            InvocationContext invocationContext = new(result);
+
+            TokenCredential? tokenCredential = _options.CreateTokenCredential(invocationContext);
+
+            Assert.IsType<AzurePowerShellCredential>(tokenCredential);
+        }
+
+        [Fact]
+        public void CreateTokenCredential_WhenCredentialTypeIsManagedIdentity_ReturnsManagedIdentityCredential()
+        {
+            ParseResult result = _parser.Parse("azure-key-vault -kvu https://keyvault.test -kvc a -act managed-identity b");
+            InvocationContext invocationContext = new(result);
+
+            TokenCredential? tokenCredential = _options.CreateTokenCredential(invocationContext);
+
+            Assert.IsType<ManagedIdentityCredential>(tokenCredential);
+        }
+
+        [Fact]
+        public void CreateTokenCredential_WhenCredentialTypeIsWorkloadIdentity_ReturnsWorkloadIdentityCredential()
+        {
+            ParseResult result = _parser.Parse("azure-key-vault -kvu https://keyvault.test -kvc a -act workload-identity b");
+            InvocationContext invocationContext = new(result);
+
+            TokenCredential? tokenCredential = _options.CreateTokenCredential(invocationContext);
+
+            Assert.IsType<WorkloadIdentityCredential>(tokenCredential);
+        }
+
+        [Fact]
+        public void CreateTokenCredential_WhenCredentialTypeIsNotSet_ReturnsDefaultAzureCredential()
+        {
+            ParseResult result = _parser.Parse("azure-key-vault -kvu https://keyvault.test -kvc a b");
+            InvocationContext invocationContext = new(result);
+
+            TokenCredential? tokenCredential = _options.CreateTokenCredential(invocationContext);
+
+            Assert.IsType<DefaultAzureCredential>(tokenCredential);
+        }
     }
 }