Log flatpak+appimage configuration

AM2RLauncher/AM2RLauncher.Gtk/Program.cs

@@ -62,6 +62,14 @@ internal static class MainClass
         else
             log.Error("Couldn't determine the currently running distro!");
 
+        if (OS.IsThisRunningFromFlatpak)
+            log.Info("Running from Flatpak!");
+        
+        #if NOAPPIMAGE
+        log.Info("On \"No AppImage\" configuration.");
+        #else
+        log.Info("On AppImage configuration.");
+        #endif
 
         try
         {

AM2RLauncher/AM2RLauncherLib/OS.cs

@@ -1,4 +1,5 @@
-using System.Runtime.InteropServices;
+using System.IO;
+using System.Runtime.InteropServices;
 
 namespace AM2RLauncherLib;
 
@@ -52,6 +53,11 @@ public static class OS
     /// </summary>
     public static readonly bool IsThisRunningFromWine = CheckIfRunFromWINE();
 
+    /// <summary>
+    /// Checks if this is run via Flatpak.
+    /// </summary>
+    public static readonly bool IsThisRunningFromFlatpak = CheckIfRunFromFlatpak();
+
     /// <summary>
     /// Checks if the Launcher is ran from WINE.
     /// </summary>
@@ -65,4 +71,18 @@ public static class OS
 
         return false;
     }
+
+    /// <summary>
+    /// Checks if the Launcher is ran from a Flatpak.
+    /// </summary>
+    /// <returns>see langword="true"/> if run from a Flatpak, <see langword="false"/> if not.</returns>
+    private static bool CheckIfRunFromFlatpak()
+    {
+        if (!IsLinux) return false;
+        
+        // This file is present in all flatpaks
+        if (File.Exists("/.flatpak-info"))
+            return true;
+        return false;
+    }
 }