Re-enable support for deterministic pack

Make NuGet pack more determinisitic, by default.

This makes `Deterministic` property (default = `true`) work again for
nuget pack via msbuild.

It adds support for `DeterministicTimestamp` property (default = `true`)
too.

For more details about the properties and the design goals, see:

- NuGet/Home#14785
- https://github.com/NuGet/Home/main/accepted/2026/deterministic-pack-revisited.md

Fixes: NuGet/Home#8601

Author: omajid

src/NuGet.Clients/NuGet.CommandLine/Commands/PackCommand.cs

@@ -103,6 +103,12 @@ public Dictionary<string, string> Properties
         [Option(typeof(NuGetCommand), "PackageCommandConfigFile")]
         public new string ConfigFile { get; set; }
 
+        [Option(typeof(NuGetCommand), "PackageCommandDeterministic")]
+        public bool Deterministic { get; set; }
+
+        [Option(typeof(NuGetCommand), "PackageCommandDeterministicTimestamp")]
+        public string DeterministicTimestamp { get; set; }
+
         public override void ExecuteCommand()
         {
             var packArgs = new PackArgs();
@@ -111,6 +117,8 @@ public override void ExecuteCommand()
             packArgs.OutputDirectory = OutputDirectory;
             packArgs.BasePath = BasePath;
             packArgs.MsBuildDirectory = new Lazy<string>(() => MsBuildUtility.GetMsBuildDirectoryFromMsBuildPath(MSBuildPath, MSBuildVersion, Console).Value.Path);
+            packArgs.Deterministic = Deterministic;
+            packArgs.DeterministicTimestamp = DeterministicTimestamp;
 
             if (!string.IsNullOrEmpty(PackagesDirectory))
             {

src/NuGet.Clients/NuGet.CommandLine/Commands/ProjectFactory.cs

@@ -51,6 +51,9 @@ public class ProjectFactory : IProjectFactory, CoreV2.NuGet.IPropertyProvider, I
 
         private readonly MSBuildAssemblyResolver _msbuildAssemblyResolver;
 
+        private readonly bool _deterministic;
+        private readonly string _deterministicTimestamp;
+
         // Packaging folders
         private const string ContentFolder = "content";
 
@@ -66,13 +69,16 @@ public class ProjectFactory : IProjectFactory, CoreV2.NuGet.IPropertyProvider, I
         private const string ReferenceOutputAssembly = "ReferenceOutputAssembly";
         private const string TransformFileExtension = ".transform";
 
+
         [Import]
         public IMachineWideSettings MachineWideSettings { get; set; }
 
         public static IProjectFactory ProjectCreator(PackArgs packArgs, string path)
         {
             return new ProjectFactory(packArgs.MsBuildDirectory.Value, path, packArgs.Properties)
             {
+                _deterministic = packArgs.Deterministic,
+                _deterministicTimestamp = packArgs.DeterministicTimestamp,
                 IsTool = packArgs.Tool,
                 LogLevel = packArgs.LogLevel,
                 Logger = packArgs.Logger,
@@ -236,7 +242,11 @@ public PackageBuilder CreateBuilder(string basePath, NuGetVersion version, strin
                 }
             }
 
-            builder = new PackageBuilder(false, Logger);
+            // TODO is deterministic-ness tied in here?
+            builder = new PackageBuilder(_deterministic, Logger)
+            {
+                DeterministicTimestamp = _deterministicTimestamp,
+            };
 
             try
             {
@@ -705,6 +715,7 @@ private PackageDependency CreateDependencyFromProject(dynamic project, Dictionar
                 projectFactory.ProjectProperties = ProjectProperties;
                 projectFactory.SymbolPackageFormat = SymbolPackageFormat;
                 projectFactory.BuildProject();
+                // TODO: does deterministicness matter here?
                 var builder = new PackageBuilder();
 
                 projectFactory.ExtractMetadata(builder);

src/NuGet.Clients/NuGet.CommandLine/NuGetCommand.Designer.cs

@@ -844,6 +844,9 @@ nuget trusted-signers Remove -Name TrustedRepo</value>
   <data name="PackageCommandDeterministic" xml:space="preserve">
     <value>Specify if the command should create a deterministic package. Multiple invocations of the pack command will create the exact same package.</value>
   </data>
+  <data name="PackageCommandDeterministicTimestamp" xml:space="preserve">
+    <value>Specify the timestamp this command should use when creating a deterministic package. Multiple invocations of the pack command will create the exact same package.</value>
+  </data>
   <data name="ClientCertificatesCommandFilePathDescription" xml:space="preserve">
     <value>Path to certificate file.</value>
   </data>

src/NuGet.Clients/NuGet.CommandLine/NuGetCommand.resx

@@ -601,6 +601,11 @@ nuget pack foo.nuspec -Version 2.1.0</target>
         <target state="translated">Určete, jestli má příkaz vytvořit deterministický balíček. Vícenásobné vyvolání příkazu pack vytvoří úplně stejný balíček.</target>
         <note />
       </trans-unit>
+      <trans-unit id="PackageCommandDeterministicTimestamp">
+        <source>Specify the timestamp this command should use when creating a deterministic package. Multiple invocations of the pack command will create the exact same package.</source>
+        <target state="new">Specify the timestamp this command should use when creating a deterministic package. Multiple invocations of the pack command will create the exact same package.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PackageCommandExcludeDescription">
         <source>Specifies one or more wildcard patterns to exclude when creating a package.</source>
         <target state="translated">Určuje nejméně jeden vzor zástupných znaků, který se má vyloučit při vytváření balíčku.</target>

src/NuGet.Clients/NuGet.CommandLine/xlf/NuGetCommand.cs.xlf

@@ -601,6 +601,11 @@ nuget pack foo.nuspec -Version 2.1.0</target>
         <target state="translated">Geben Sie an, ob der Befehl ein deterministisches Paket erstellen soll. Durch mehrere Aufrufe des Paketbefehls wird genau dasselbe Paket erstellt.</target>
         <note />
       </trans-unit>
+      <trans-unit id="PackageCommandDeterministicTimestamp">
+        <source>Specify the timestamp this command should use when creating a deterministic package. Multiple invocations of the pack command will create the exact same package.</source>
+        <target state="new">Specify the timestamp this command should use when creating a deterministic package. Multiple invocations of the pack command will create the exact same package.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PackageCommandExcludeDescription">
         <source>Specifies one or more wildcard patterns to exclude when creating a package.</source>
         <target state="translated">Gibt mindestens ein Platzhaltermuster an, das beim Erstellen eines Pakets ausgeschlossen werden soll.</target>

src/NuGet.Clients/NuGet.CommandLine/xlf/NuGetCommand.de.xlf

@@ -601,6 +601,11 @@ nuget pack foo.nuspec -Version 2.1.0</target>
         <target state="translated">Especifique si el comando debe crear un paquete determinista. Varias invocaciones del comando pack crearán exactamente el mismo paquete.</target>
         <note />
       </trans-unit>
+      <trans-unit id="PackageCommandDeterministicTimestamp">
+        <source>Specify the timestamp this command should use when creating a deterministic package. Multiple invocations of the pack command will create the exact same package.</source>
+        <target state="new">Specify the timestamp this command should use when creating a deterministic package. Multiple invocations of the pack command will create the exact same package.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PackageCommandExcludeDescription">
         <source>Specifies one or more wildcard patterns to exclude when creating a package.</source>
         <target state="translated">Especifica uno o varios patrones de comodines que se excluirán al crear un paquete.</target>

src/NuGet.Clients/NuGet.CommandLine/xlf/NuGetCommand.es.xlf

@@ -601,6 +601,11 @@ nuget pack foo.nuspec -Version 2.1.0</target>
         <target state="translated">Spécifiez si la commande doit créer un package déterministe. Plusieurs appels de la commande pack créent exactement le même package.</target>
         <note />
       </trans-unit>
+      <trans-unit id="PackageCommandDeterministicTimestamp">
+        <source>Specify the timestamp this command should use when creating a deterministic package. Multiple invocations of the pack command will create the exact same package.</source>
+        <target state="new">Specify the timestamp this command should use when creating a deterministic package. Multiple invocations of the pack command will create the exact same package.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PackageCommandExcludeDescription">
         <source>Specifies one or more wildcard patterns to exclude when creating a package.</source>
         <target state="translated">Spécifie un ou plusieurs modèles à caractère générique à exclure durant la création d'un package.</target>

src/NuGet.Clients/NuGet.CommandLine/xlf/NuGetCommand.fr.xlf

@@ -601,6 +601,11 @@ nuget pack foo.nuspec -Version 2.1.0</target>
         <target state="translated">Specificare se il comando deve creare un pacchetto deterministico. Le chiamate multiple del comando pack creeranno lo stesso pacchetto.</target>
         <note />
       </trans-unit>
+      <trans-unit id="PackageCommandDeterministicTimestamp">
+        <source>Specify the timestamp this command should use when creating a deterministic package. Multiple invocations of the pack command will create the exact same package.</source>
+        <target state="new">Specify the timestamp this command should use when creating a deterministic package. Multiple invocations of the pack command will create the exact same package.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PackageCommandExcludeDescription">
         <source>Specifies one or more wildcard patterns to exclude when creating a package.</source>
         <target state="translated">Specifica uno o più caratteri jolly da escludere durante la creazione di un pacchetto.</target>

src/NuGet.Clients/NuGet.CommandLine/xlf/NuGetCommand.it.xlf

@@ -601,6 +601,11 @@ nuget pack foo.nuspec -Version 2.1.0</target>
         <target state="translated">コマンドで決定論的パッケージを作成する必要があるかどうかを指定します。パック コマンドを複数回呼び出すと、まったく同じパッケージが作成されます。</target>
         <note />
       </trans-unit>
+      <trans-unit id="PackageCommandDeterministicTimestamp">
+        <source>Specify the timestamp this command should use when creating a deterministic package. Multiple invocations of the pack command will create the exact same package.</source>
+        <target state="new">Specify the timestamp this command should use when creating a deterministic package. Multiple invocations of the pack command will create the exact same package.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PackageCommandExcludeDescription">
         <source>Specifies one or more wildcard patterns to exclude when creating a package.</source>
         <target state="translated">パッケージの作成時に除外する 1 つまたは複数のワイルドカード パターンを指定します。</target>