fix some issue mentioned by copilot

Author: GabrielDuf

src/UniGetUI.Core.LanguageEngine/Assets/Languages/lang_en.json

@@ -504,6 +504,7 @@
   "The Missing Package Manager for macOS (or Linux).<br>Contains: <b>Formulae, Casks</b>": "The Missing Package Manager for macOS (or Linux).<br>Contains: <b>Formulae, Casks</b>",
   "The default package manager for Debian/Ubuntu-based Linux distributions.<br>Contains: <b>Debian/Ubuntu packages</b>": "The default package manager for Debian/Ubuntu-based Linux distributions.<br>Contains: <b>Debian/Ubuntu packages</b>",
   "The default package manager for RHEL/Fedora-based Linux distributions.<br>Contains: <b>RPM packages</b>": "The default package manager for RHEL/Fedora-based Linux distributions.<br>Contains: <b>RPM packages</b>",
+  "The default package manager for Arch Linux and its derivatives.<br>Contains: <b>Arch Linux packages</b>": "The default package manager for Arch Linux and its derivatives.<br>Contains: <b>Arch Linux packages</b>",
   "Node JS's package manager. Full of libraries and other utilities that orbit the javascript world<br>Contains: <b>Node javascript libraries and other related utilities</b>": "Node JS's package manager. Full of libraries and other utilities that orbit the javascript world<br>Contains: <b>Node javascript libraries and other related utilities</b>",
   "Python's library manager. Full of python libraries and other python-related utilities<br>Contains: <b>Python libraries and related utilities</b>": "Python's library manager. Full of python libraries and other python-related utilities<br>Contains: <b>Python libraries and related utilities</b>",
   "PowerShell's package manager. Find libraries and scripts to expand PowerShell capabilities<br>Contains: <b>Modules, Scripts, Cmdlets</b>": "PowerShell's package manager. Find libraries and scripts to expand PowerShell capabilities<br>Contains: <b>Modules, Scripts, Cmdlets</b>",

src/UniGetUI.Core.Tools/Tools.cs

@@ -506,11 +506,20 @@ public static async Task CacheUACForCurrentProcess()
                 _isCaching = true;
                 Logger.Info("Caching admin rights for process id " + Environment.ProcessId);
 
-                // When using sudo on Linux, "-Av" validates/extends the timestamp via the
-                // askpass helper — prompts once then caches for the sudo timeout (~15 min).
-                // For gsudo on Windows (or pkexec fallback) use the gsudo cache protocol.
-                string cacheArgs = Path.GetFileName(CoreData.ElevatorPath) == "sudo"
-                    ? "-Av"
+                var elevatorName = Path.GetFileName(CoreData.ElevatorPath);
+
+                // pkexec prompts on every invocation and has no caching protocol.
+                if (elevatorName == "pkexec")
+                {
+                    _isCaching = false;
+                    return;
+                }
+
+                // sudo: -v validates/extends the cached timestamp.
+                // Prepend -A only when the SUDO_ASKPASS helper is configured.
+                // gsudo / UniGetUI Elevator.exe: use the gsudo cache protocol.
+                string cacheArgs = elevatorName == "sudo"
+                    ? (CoreData.ElevatorArgs.Contains("-A") ? "-Av" : "-v")
                     : "cache on --pid " + Environment.ProcessId + " -d 1";
 
                 using Process p = new()
@@ -555,9 +564,17 @@ public static async Task ResetUACForCurrentProcess()
                 "Resetting administrator rights cache for process id " + Environment.ProcessId
             );
 
-            // When using sudo on Linux, "-K" removes all cached timestamps.
-            // For gsudo on Windows (or pkexec fallback) use the gsudo cache protocol.
-            string resetArgs = Path.GetFileName(CoreData.ElevatorPath) == "sudo"
+            var elevatorName = Path.GetFileName(CoreData.ElevatorPath);
+
+            // pkexec prompts on every invocation and has no caching protocol.
+            if (elevatorName == "pkexec")
+            {
+                return;
+            }
+
+            // sudo: -K removes all cached timestamps.
+            // gsudo / UniGetUI Elevator.exe: use the gsudo cache protocol.
+            string resetArgs = elevatorName == "sudo"
                 ? "-K"
                 : "cache off --pid " + Environment.ProcessId;
 

src/UniGetUI.PackageEngine.Managers.Apt/Helpers/AptPkgDetailsHelper.cs

@@ -1,6 +1,7 @@
 using System.Diagnostics;
 using UniGetUI.Core.IconEngine;
 using UniGetUI.PackageEngine.Classes.Manager.BaseProviders;
+using UniGetUI.PackageEngine.Enums;
 using UniGetUI.PackageEngine.Interfaces;
 using UniGetUI.PackageEngine.ManagerClasses.Classes;
 
@@ -27,7 +28,7 @@ protected override void GetDetails_UnSafe(IPackageDetails details)
         };
 
         IProcessTaskLogger logger = Manager.TaskLogger.CreateNew(
-            Enums.LoggableTaskType.LoadPackageDetails, p);
+            LoggableTaskType.LoadPackageDetails, p);
         p.Start();
 
         // apt-cache show outputs key: value pairs, one per line.
@@ -138,13 +139,22 @@ protected override IReadOnlyList<Uri> GetScreenshots_UnSafe(IPackage package)
             },
         };
         p.Start();
-        var firstPath = p.StandardOutput.ReadLine()?.Trim();
-        p.WaitForExit();
 
-        if (firstPath is not null && Directory.Exists(firstPath))
-            return firstPath;
+        // Must drain all stdout before WaitForExit — packages with many files
+        // will fill the pipe buffer and deadlock if we stop reading early.
+        string? result = null;
+        string? line;
+        while ((line = p.StandardOutput.ReadLine()) is not null)
+        {
+            if (result is not null) continue;
+            var path = line.Trim();
+            if (Directory.Exists(path))
+                result = path;
+        }
 
-        return null;
+        p.StandardError.ReadToEnd();
+        p.WaitForExit();
+        return result;
     }
 
     protected override IReadOnlyList<string> GetInstallableVersions_UnSafe(IPackage package)

src/UniGetUI.PackageEngine.Managers.Apt/Helpers/AptPkgOperationHelper.cs

@@ -1,4 +1,3 @@
-using UniGetUI.Core.Logging;
 using UniGetUI.PackageEngine.Classes.Manager.BaseProviders;
 using UniGetUI.PackageEngine.Enums;
 using UniGetUI.PackageEngine.Interfaces;
@@ -18,7 +17,6 @@ protected override IReadOnlyList<string> _getOperationParameters(
     {
         // apt always requires root — force elevation via InstallOptions (reference type, persists)
         options.RunAsAdministrator = true;
-        Logger.Warn($"[Apt] Set RunAsAdministrator=true on options for package {package.Id}");
 
         List<string> parameters =
         [

src/UniGetUI.PackageEngine.Managers.Dnf/Helpers/DnfPkgOperationHelper.cs

@@ -1,4 +1,3 @@
-using UniGetUI.Core.Logging;
 using UniGetUI.PackageEngine.Classes.Manager.BaseProviders;
 using UniGetUI.PackageEngine.Enums;
 using UniGetUI.PackageEngine.Interfaces;
@@ -18,7 +17,6 @@ protected override IReadOnlyList<string> _getOperationParameters(
     {
         // dnf always requires root — force elevation via InstallOptions (reference type, persists)
         options.RunAsAdministrator = true;
-        Logger.Warn($"[Dnf] Set RunAsAdministrator=true on options for package {package.Id}");
 
         List<string> parameters =
         [

src/UniGetUI.PackageEngine.Managers.Pacman/Helpers/PacmanPkgOperationHelper.cs

@@ -1,4 +1,3 @@
-using UniGetUI.Core.Logging;
 using UniGetUI.PackageEngine.Classes.Manager.BaseProviders;
 using UniGetUI.PackageEngine.Enums;
 using UniGetUI.PackageEngine.Interfaces;
@@ -18,7 +17,6 @@ protected override IReadOnlyList<string> _getOperationParameters(
     {
         // pacman always requires root — force elevation via InstallOptions (reference type, persists)
         options.RunAsAdministrator = true;
-        Logger.Warn($"[Pacman] Set RunAsAdministrator=true on options for package {package.Id}");
 
         List<string> parameters =
         [