Adds a cvar for server rules (#8365)

Co-authored-by: Veritius <veritiusgaming@gmail.com>
Co-authored-by: ike709 <ike709@github.com>

Content.Client/Info/RulesAndInfoWindow.cs

@@ -1,7 +1,9 @@
 using Content.Client.EscapeMenu.UI;
+using Content.Shared.CCVar;
 using Robust.Client.ResourceManagement;
 using Robust.Client.UserInterface.Controls;
 using Robust.Client.UserInterface.CustomControls;
+using Robust.Shared.Configuration;
 
 namespace Content.Client.Info
 {
@@ -9,6 +11,7 @@ namespace Content.Client.Info
     {
         [Dependency] private readonly RulesManager _rulesManager = default!;
         [Dependency] private readonly IResourceCache _resourceManager = default!;
+        [Dependency] private readonly IConfigurationManager _cfgManager = default!;
 
         private OptionsMenu optionsMenu;
 
@@ -41,7 +44,7 @@ namespace Content.Client.Info
 
         private void PopulateRules(Info rulesList)
         {
-            AddSection(rulesList, Loc.GetString("ui-rules-header"), "Rules.txt", true);
+            AddSection(rulesList, Loc.GetString("ui-rules-header"), _cfgManager.GetCVar(CCVars.RulesFile), true);
         }
 
         private void PopulateTutorial(Info tutorialList)

Content.Client/Info/RulesControl.xaml.cs

@@ -1,9 +1,10 @@
-using Robust.Client.AutoGenerated;
+using System.IO;
+using Content.Shared.CCVar;
+using Robust.Client.AutoGenerated;
 using Robust.Client.ResourceManagement;
 using Robust.Client.UserInterface.Controls;
 using Robust.Client.UserInterface.XAML;
-using Robust.Shared.IoC;
-using Robust.Shared.Localization;
+using Robust.Shared.Configuration;
 
 namespace Content.Client.Info;
 
@@ -11,13 +12,16 @@ namespace Content.Client.Info;
 public sealed partial class RulesControl : BoxContainer
 {
     [Dependency] private readonly IResourceCache _resourceManager = default!;
+    [Dependency] private readonly IConfigurationManager _cfgManager = default!;
 
     public RulesControl()
     {
         RobustXamlLoader.Load(this);
         IoCManager.InjectDependencies(this);
 
+        var path = "Server Info/" + _cfgManager.GetCVar(CCVars.RulesFile);
+
         AddChild(new InfoSection(Loc.GetString("ui-rules-header"),
-            _resourceManager.ContentFileReadAllText($"/Server Info/Rules.txt"), true));
+            _resourceManager.ContentFileReadAllText(path), true));
     }
 }

Content.Shared/CCVar/CCVars.cs

@@ -17,6 +17,12 @@ namespace Content.Shared.CCVar
         public static readonly CVarDef<string> ServerId =
             CVarDef.Create("server.id", "unknown_server_id", CVar.REPLICATED | CVar.SERVER);
 
+        /// <summary>
+        ///     Name of the rules txt file in the "Resources/Server Info" dir. Include the extension.
+        /// </summary>
+        public static readonly CVarDef<string> RulesFile =
+            CVarDef.Create("server.rules_file", "Rules.txt", CVar.REPLICATED | CVar.SERVER);
+
         /*
          * Ambience
          */