Fixed issue with dump directory.

Author: gfraiteur

src/PostSharp.Engineering.BuildTools/Build/PrepareCommand.cs

@@ -6,6 +6,7 @@
 using PostSharp.Engineering.BuildTools.Build.Model;
 using PostSharp.Engineering.BuildTools.Dependencies.Model;
 using System.Diagnostics.CodeAnalysis;
+using System.IO;
 
 namespace PostSharp.Engineering.BuildTools.Build;
 
@@ -52,6 +53,11 @@ public static bool Execute(
         {
             return false;
         }
+        
+        // Create the dump directory because TeamCity does not like empty directories.
+        var dumpDirectory = Path.Combine( context.RepoDirectory, product.DumpDirectory );
+        Directory.CreateDirectory( dumpDirectory );
+        File.WriteAllText( Path.Combine( dumpDirectory, ".empty" ), "This file is intentionally empty." );
 
         // Execute the event.
         product.OnPrepareCompleted( new PrepareCompletedEventArgs( context, settings ) );

src/PostSharp.Engineering.BuildTools/Build/Testing/TestCommand.cs

@@ -109,17 +109,6 @@ public static bool Execute( BuildContext context, BuildSettings settings )
 
             File.WriteAllText( emptyFile, "This file is intentionally empty." );
         }
-        
-        var dumpDirectory = Path.Combine( context.RepoDirectory, product.DumpDirectory );
-    
-        if ( !Directory.GetFiles( dumpDirectory ).Any() )
-        {
-            // We have to create an empty file, otherwise TeamCity will complain that
-            // artifacts are missing.
-            var emptyFile = Path.Combine( dumpDirectory, ".empty" );
-
-            File.WriteAllText( emptyFile, "This file is intentionally empty." );
-        }
 
         // Raise the post-test event.
         var buildInfo = BuildArguments.Read( context, settings.BuildConfiguration );