В Linux отключена попытка применить переменные

src/Sms.Environment.Linux/LinuxEnvironmentVariableStore.cs

@@ -1,4 +1,3 @@
-using System.Diagnostics;
 using Sms.Environment;
 
 namespace Sms.Environment.Linux;
@@ -6,7 +5,6 @@ namespace Sms.Environment.Linux;
 public sealed class LinuxEnvironmentVariableStore : IEnvironmentVariableStore
 {
     private const string ManagedFileName = "99-sms-task-two.conf";
-    private const int SystemctlBatchSize = 32;
 
     private readonly string _managedFilePath;
     private readonly string _environmentDirectory;
@@ -121,7 +119,6 @@ public sealed class LinuxEnvironmentVariableStore : IEnvironmentVariableStore
             }
 
             System.Environment.SetEnvironmentVariable(name, null);
-            TryRunSystemctl(["--user", "unset-environment", name], out _);
         }
         catch (Exception ex) when (ex is UnauthorizedAccessException or IOException)
         {
@@ -131,141 +128,14 @@ public sealed class LinuxEnvironmentVariableStore : IEnvironmentVariableStore
         }
     }
 
-    public EnvironmentReloadResult ReloadEnvironment()
-    {
-        var variables = GetUserPersistedEnvironment();
-        ApplyToCurrentProcess(variables);
-
-        if (variables.Count == 0)
+    public EnvironmentReloadResult ReloadEnvironment() =>
+        new()
         {
-            return new EnvironmentReloadResult
-            {
-                Success = true,
-                Message = "Пользовательских переменных для применения нет.",
-            };
-        }
-
-        var messages = new List<string>();
-        if (TryApplyViaSystemctl(variables, out var systemctlError))
-        {
-            messages.Add("systemd user manager обновлён (systemctl --user set-environment).");
-        }
-        else if (systemctlError is not null)
-        {
-            messages.Add($"systemctl: {systemctlError}");
-        }
-
-        if (TryApplyViaDbusUpdateEnvironment(variables, out var dbusError))
-        {
-            messages.Add("D-Bus session обновлён (dbus-update-environment).");
-        }
-        else if (dbusError is not null)
-        {
-            messages.Add($"dbus-update-environment: {dbusError}");
-        }
-
-        var processApplied = messages.Count > 0 || variables.Count > 0;
-        return new EnvironmentReloadResult
-        {
-            Success = processApplied,
-            Message = processApplied
-                ? $"Применено {variables.Count} переменных к текущему процессу. {string.Join(' ', messages)}"
-                : "Не удалось применить переменные к сессии.",
+            Success = false,
+            Message =
+                "Применение переменных к сессии в Linux не поддерживается. " +
+                "Значения сохраняются в ~/.config/environment.d/ и подхватываются после перезапуска login-сессии.",
         };
-    }
-
-    private static void ApplyToCurrentProcess(IReadOnlyDictionary<string, string> variables)
-    {
-        foreach (var pair in variables)
-        {
-            System.Environment.SetEnvironmentVariable(pair.Key, pair.Value);
-        }
-    }
-
-    private static bool TryApplyViaSystemctl(
-        IReadOnlyDictionary<string, string> variables,
-        out string? errorMessage)
-    {
-        errorMessage = null;
-        var pairs = variables.ToList();
-        for (var offset = 0; offset < pairs.Count; offset += SystemctlBatchSize)
-        {
-            var arguments = new List<string> { "--user", "set-environment" };
-            foreach (var pair in pairs.Skip(offset).Take(SystemctlBatchSize))
-            {
-                arguments.Add($"{pair.Key}={pair.Value}");
-            }
-
-            if (!TryRunSystemctl(arguments, out errorMessage))
-            {
-                return false;
-            }
-        }
-
-        return true;
-    }
-
-    private static bool TryApplyViaDbusUpdateEnvironment(
-        IReadOnlyDictionary<string, string> variables,
-        out string? errorMessage)
-    {
-        var arguments = new List<string>();
-        foreach (var pair in variables)
-        {
-            arguments.Add($"{pair.Key}={pair.Value}");
-        }
-
-        return TryRunCommand("dbus-update-environment", arguments, out errorMessage);
-    }
-
-    private static bool TryRunSystemctl(IReadOnlyList<string> arguments, out string? errorMessage) =>
-        TryRunCommand("systemctl", arguments, out errorMessage);
-
-    private static bool TryRunCommand(
-        string fileName,
-        IReadOnlyList<string> arguments,
-        out string? errorMessage)
-    {
-        errorMessage = null;
-        try
-        {
-            var startInfo = new ProcessStartInfo
-            {
-                FileName = fileName,
-                RedirectStandardError = true,
-                RedirectStandardOutput = true,
-                UseShellExecute = false,
-            };
-            foreach (var argument in arguments)
-            {
-                startInfo.ArgumentList.Add(argument);
-            }
-
-            using var process = Process.Start(startInfo);
-            if (process is null)
-            {
-                errorMessage = "не удалось запустить процесс";
-                return false;
-            }
-
-            var stderr = process.StandardError.ReadToEnd();
-            process.WaitForExit(5000);
-            if (process.ExitCode == 0)
-            {
-                return true;
-            }
-
-            errorMessage = string.IsNullOrWhiteSpace(stderr)
-                ? $"код выхода {process.ExitCode}"
-                : stderr.Trim();
-            return false;
-        }
-        catch (Exception ex)
-        {
-            errorMessage = ex.Message;
-            return false;
-        }
-    }
 
     private Dictionary<string, string> LoadManagedFile()
     {