change current architecture as default platform

.github/workflows/ci.yml

@@ -43,16 +43,12 @@ jobs:
         include:
           - machine: windows-2022
             containers: none
-            platform: x64
           - machine: ubuntu-20.04
             containers: linux
-            platform: x64
           - machine: macos-11
             containers: none
-            platform: x64
           - machine: actuated-arm64
             containers: linux
-            platform: arm
     runs-on: ${{ matrix.machine }}
     steps:
       - name: Checkout
@@ -102,7 +98,7 @@ jobs:
               make
 
       - name: Run TestWorkflow
-        run: ./build.cmd --skip NativeTests --target TestWorkflow --platform ${{ matrix.platform }} --test-target-framework ${{ matrix.test-tfm }} --containers ${{ matrix.containers }}
+        run: ./build.cmd --skip NativeTests --target TestWorkflow --test-target-framework ${{ matrix.test-tfm }} --containers ${{ matrix.containers }}
 
       - name: Upload test logs
         if: always()

build/Build.Utils.cs

@@ -0,0 +1,27 @@
+using Nuke.Common.Tools.MSBuild;
+using System.Runtime.InteropServices;
+
+partial class Build
+{
+    private static string AndFilter(params string[] args)
+    {
+        return string.Join("&", args.Where(s => !string.IsNullOrEmpty(s)));
+    }
+
+    private static MSBuildTargetPlatform GetDefaultTargetPlatform()
+    {
+        if (RuntimeInformation.ProcessArchitecture == Architecture.Arm64)
+        {
+            return Arm64TargetPlatform;
+        }
+
+        if (RuntimeInformation.OSArchitecture == Architecture.X86)
+        {
+            return MSBuildTargetPlatform.x86;
+        }
+
+        return MSBuildTargetPlatform.x64;
+    }
+
+    private static MSBuildTargetPlatform Arm64TargetPlatform = (MSBuildTargetPlatform)"arm64";
+}

build/Build.cs

@@ -11,8 +11,8 @@ partial class Build : NukeBuild
     [Parameter("Configuration to build. Default is 'Release'")]
     readonly Configuration BuildConfiguration = Configuration.Release;
 
-    [Parameter("Platform to build - x86, x64, arm. Default is 'x64'")]
-    readonly MSBuildTargetPlatform Platform = MSBuildTargetPlatform.x64;
+    [Parameter("Platform to build - x86, x64, arm64. Default is current architecture.")]
+    readonly MSBuildTargetPlatform Platform = GetDefaultTargetPlatform();
 
     [Parameter($"Docker containers type to be used in tests. One of '{ContainersNone}', '{ContainersLinux}', '{ContainersWindows}', '{ContainersWindowsOnly}'. Default is '{ContainersLinux}'")]
     readonly string Containers = ContainersLinux;
@@ -167,9 +167,4 @@ string TestNameFilter()
 
         return "FullyQualifiedName~" + TestName;
     }
-
-    static string AndFilter(params string[] args)
-    {
-        return string.Join("&", args.Where(s => !string.IsNullOrEmpty(s)));
-    }
 }