Add 'EnableIncrementalGeneration'

Author: Sergio0694

src/Tasks/Microsoft.NET.Build.Tasks/RunCsWinRTGenerator.cs

@@ -76,6 +76,11 @@ public sealed class RunCsWinRTGenerator : ToolTask
     /// </summary>
     public bool ValidateWinRTRuntimeDllVersion2References { get; set; } = true;
 
+    /// <summary>
+    /// Gets whether to enable incremental generation (i.e. with a cache file on disk saving the full set of types to generate).
+    /// </summary>
+    public bool EnableIncrementalGeneration { get; set; } = true;
+
     /// <summary>
     /// Gets whether to treat warnings coming from 'cswinrtgen' as errors (regardless of the global 'TreatWarningsAsErrors' setting).
     /// </summary>
@@ -216,6 +221,7 @@ protected override string GenerateResponseFileCommands()
         AppendResponseFileCommand(args, "--use-windows-ui-xaml-projections", UseWindowsUIXamlProjections.ToString());
         AppendResponseFileCommand(args, "--validate-winrt-runtime-assembly-version", ValidateWinRTRuntimeAssemblyVersion.ToString());
         AppendResponseFileCommand(args, "--validate-winrt-runtime-dll-version-2-references", ValidateWinRTRuntimeDllVersion2References.ToString());
+        AppendResponseFileCommand(args, "--enable-incremental-generation", EnableIncrementalGeneration.ToString());
         AppendResponseFileCommand(args, "--treat-warnings-as-errors", TreatWarningsAsErrors.ToString());
         AppendResponseFileCommand(args, "--max-degrees-of-parallelism", MaxDegreesOfParallelism.ToString());
 

src/Tasks/Microsoft.NET.Build.Tasks/targets/Microsoft.NET.Windows.targets

@@ -185,6 +185,7 @@ Copyright (c) .NET Foundation. All rights reserved.
     <CsWinRTGeneratorInteropAssemblyDirectory Condition="'$(CsWinRTGeneratorInteropAssemblyDirectory)' == ''">$(IntermediateOutputPath)</CsWinRTGeneratorInteropAssemblyDirectory>
     <CsWinRTGeneratorValidateWinRTRuntimeAssemblyVersion Condition="'$(CsWinRTGeneratorValidateWinRTRuntimeAssemblyVersion)' == ''">true</CsWinRTGeneratorValidateWinRTRuntimeAssemblyVersion>
     <CsWinRTGeneratorValidateWinRTRuntimeDllVersion2References Condition="'$(CsWinRTGeneratorValidateWinRTRuntimeDllVersion2References)' == ''">true</CsWinRTGeneratorValidateWinRTRuntimeDllVersion2References>
+    <CsWinRTGeneratorEnableIncrementalGeneration Condition="'$(CsWinRTGeneratorEnableIncrementalGeneration)' == ''">true</CsWinRTGeneratorEnableIncrementalGeneration>
     <CsWinRTGeneratorTreatWarningsAsErrors Condition="'$(CsWinRTGeneratorTreatWarningsAsErrors)' == ''">false</CsWinRTGeneratorTreatWarningsAsErrors>
     <CsWinRTGeneratorMaxDegreesOfParallelism Condition="'$(CsWinRTGeneratorMaxDegreesOfParallelism)' == ''">-1</CsWinRTGeneratorMaxDegreesOfParallelism>
     <CsWinRTGeneratorStandardOutputImportance Condition="'$(CsWinRTGeneratorStandardOutputImportance)' == ''">High</CsWinRTGeneratorStandardOutputImportance>
@@ -248,6 +249,7 @@ Copyright (c) .NET Foundation. All rights reserved.
       <_RunCsWinRTGeneratorInputsCacheToHash Include="$(CsWinRTUseWindowsUIXamlProjections)" />
       <_RunCsWinRTGeneratorInputsCacheToHash Include="$(CsWinRTGeneratorValidateWinRTRuntimeAssemblyVersion)" />
       <_RunCsWinRTGeneratorInputsCacheToHash Include="$(CsWinRTGeneratorValidateWinRTRuntimeDllVersion2References)" />
+      <_RunCsWinRTGeneratorInputsCacheToHash Include="$(CsWinRTGeneratorEnableIncrementalGeneration)" />
       <_RunCsWinRTGeneratorInputsCacheToHash Include="$(CsWinRTGeneratorTreatWarningsAsErrors)" />
       <_RunCsWinRTGeneratorInputsCacheToHash Include="$(CsWinRTGeneratorMaxDegreesOfParallelism)" />
       <_RunCsWinRTGeneratorInputsCacheToHash Include="$(CsWinRTGeneratorLogStandardErrorAsError)" />
@@ -294,6 +296,7 @@ Copyright (c) .NET Foundation. All rights reserved.
       UseWindowsUIXamlProjections="$(CsWinRTUseWindowsUIXamlProjections)"
       ValidateWinRTRuntimeAssemblyVersion="$(CsWinRTGeneratorValidateWinRTRuntimeAssemblyVersion)"
       ValidateWinRTRuntimeDllVersion2References="$(CsWinRTGeneratorValidateWinRTRuntimeDllVersion2References)"
+      EnableIncrementalGeneration="$(CsWinRTGeneratorEnableIncrementalGeneration)"
       TreatWarningsAsErrors="$(CsWinRTGeneratorTreatWarningsAsErrors)"
       MaxDegreesOfParallelism="$(CsWinRTGeneratorMaxDegreesOfParallelism)"
       AdditionalArguments="@(CsWinRTGeneratorAdditionalArgument)"