Add version output to code generator (#904)

* Added version information on code generation

* Fixed warnings

* Fixed comments

src/HassModel/NetDaemon.HassModel.CodeGenerator/CodeGeneration/Generator.cs

@@ -35,14 +35,13 @@ public static CompilationUnitSyntax BuildCompilationUnit(string namespaceName, p
             .NormalizeWhitespace();
     }
 
-    private static readonly string GeneratorVersion = Assembly.GetAssembly(typeof(Generator))!.GetName().Version!.ToString();
 
     private static SyntaxTrivia[] GetFileHeader()
     {
         string headerText = @$"
         //------------------------------------------------------------------------------
         // <auto-generated>
-        // Generated using NetDaemon CodeGenerator nd-codegen v{GeneratorVersion}
+        // Generated using NetDaemon CodeGenerator nd-codegen v{VersionHelper.GeneratorVersion}
         //   At: {DateTime.Now:O}
         //
         // *** Make sure the version of the codegen tool and your nugets Joysoftware.NetDaemon.* have the same version.***

src/HassModel/NetDaemon.HassModel.CodeGenerator/Helpers/VersionHelper.cs

@@ -0,0 +1,28 @@
+using System.Reflection;
+
+namespace NetDaemon.HassModel.CodeGenerator.Helpers;
+
+#pragma warning disable CA1303
+
+/// <summary>
+/// Helper class for managing NetDaemon version tasks
+/// </summary>
+public static class VersionHelper
+{
+    /// <summary>
+    /// Returns current version of NetDaemon
+    /// </summary>
+    public static string GeneratorVersion { get; } =
+        Assembly.GetAssembly(typeof(Generator))!.GetName().Version!.ToString();
+
+    /// <summary>
+    /// Pretty prints version information to console
+    /// </summary>
+    public static void PrintVersion()
+    {
+        Console.Write("Codegen version: ");
+        Console.ForegroundColor = ConsoleColor.Green;
+        Console.WriteLine(GeneratorVersion);
+        Console.ResetColor();
+    }
+}

src/HassModel/NetDaemon.HassModel.CodeGenerator/Program.cs

@@ -18,6 +18,7 @@
 generationSettings.GenerateOneFilePerEntity = args.Any(arg => arg.ToLower(CultureInfo.InvariantCulture) == "-fpe");
 
 var controller = new Controller(generationSettings, haSettings);
+VersionHelper.PrintVersion();
 await controller.RunAsync().ConfigureAwait(false);
 
 Console.WriteLine();