Show app startup time in logs

StabilityMatrix.Avalonia/Program.cs

@@ -38,12 +38,16 @@ public class Program
 
     public static bool IsDebugBuild { get; private set; }
 
+    public static Stopwatch StartupTimer { get; } = new();
+
     // Initialization code. Don't use any Avalonia, third-party APIs or any
     // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
     // yet and stuff might break.
     [STAThread]
     public static void Main(string[] args)
     {
+        StartupTimer.Start();
+
         Args.DebugExceptionDialog = args.Contains("--debug-exception-dialog");
         Args.DebugSentry = args.Contains("--debug-sentry");
         Args.DebugOneClickInstall = args.Contains("--debug-one-click-install");

StabilityMatrix.Avalonia/ViewModels/MainWindowViewModel.cs

@@ -103,6 +103,11 @@ public partial class MainWindowViewModel : ViewModelBase
         Task.Run(() => settingsManager.IndexCheckpoints()).SafeFireAndForget();
 
         PreloadPages();
+
+        Program.StartupTimer.Stop();
+        var startupTime = CodeTimer.FormatTime(Program.StartupTimer.Elapsed);
+        Logger.Info($"App started ({startupTime})");
+
         if (Program.Args.DebugOneClickInstall || !settingsManager.Settings.InstalledPackages.Any())
         {
             var viewModel = dialogFactory.Get<OneClickInstallViewModel>();

StabilityMatrix.Core/Helper/CodeTimer.cs

@@ -52,7 +52,7 @@ public class CodeTimer : IDisposable
     /// <summary>
     /// Formats a TimeSpan into a string. Chooses the most appropriate unit of time.
     /// </summary>
-    private static string FormatTime(TimeSpan duration)
+    public static string FormatTime(TimeSpan duration)
     {
         if (duration.TotalSeconds < 1)
         {