Add trimmable analysis to build

Author: josephdecock

build/Program.cs

@@ -21,6 +21,7 @@ private static class Targets
             public const string Pack = "pack";
             public const string SignBinary = "sign-binary";
             public const string SignPackage = "sign-package";
+            public const string TrimmableAnalysis = "trimmable-analysis";
         }
 
         static async Task Main(string[] args)
@@ -65,9 +66,14 @@ static async Task Main(string[] args)
                 SignNuGet();
             });
 
-            Target("default", DependsOn(Targets.Test, Targets.Pack));
+            Target(Targets.TrimmableAnalysis, () =>
+            {
+                Run("dotnet", "publish test/TrimmableAnalysis -c Release -r win-x64");
+            });
+
+            Target("default", DependsOn(Targets.Test, Targets.Pack, Targets.TrimmableAnalysis));
 
-            Target("sign", DependsOn(Targets.Test, Targets.SignPackage));
+            Target("sign", DependsOn(Targets.Test, Targets.SignPackage, Targets.TrimmableAnalysis));
 
             await RunTargetsAndExitAsync(args, ex => ex is SimpleExec.ExitCodeException || ex.Message.EndsWith(envVarMissing));
         }

test/TrimmableAnalysis/README.md

@@ -0,0 +1,3 @@
+This project exists to facilitate analysis of trimmable warnings. 
+
+See https://learn.microsoft.com/en-us/dotnet/core/deploying/trimming/prepare-libraries-for-trimming