1 files changed, 5 insertions, 9 deletions
diff --git a/Emby.Server.Implementations/IO/LibraryMonitor.cs b/Emby.Server.Implementations/IO/LibraryMonitor.cs
index 3a746ef60..607a4d333 100644
--- a/Emby.Server.Implementations/IO/LibraryMonitor.cs
+++ b/Emby.Server.Implementations/IO/LibraryMonitor.cs
@@ -11,7 +11,6 @@ using MediaBrowser.Controller.Plugins;
 using MediaBrowser.Model.IO;
 using MediaBrowser.Model.System;
 using MediaBrowser.Model.Tasks;
-using MediaBrowser.Model.Threading;
 using Microsoft.Extensions.Logging;
 
 namespace Emby.Server.Implementations.IO
@@ -35,7 +34,7 @@ namespace Emby.Server.Implementations.IO
         /// <summary>
         /// Any file name ending in any of these will be ignored by the watchers
         /// </summary>
-        private readonly string[] _alwaysIgnoreFiles = new string[]
+        private readonly HashSet<string> _alwaysIgnoreFiles = new HashSet<string>(StringComparer.OrdinalIgnoreCase)
         {
             "small.jpg",
             "albumart.jpg",
@@ -54,7 +53,7 @@ namespace Emby.Server.Implementations.IO
             ".actors"
         };
 
-        private readonly string[] _alwaysIgnoreExtensions = new string[]
+        private readonly HashSet<string> _alwaysIgnoreExtensions = new HashSet<string>(StringComparer.OrdinalIgnoreCase)
         {
             // thumbs.db
             ".db",
@@ -134,7 +133,6 @@ namespace Emby.Server.Implementations.IO
         private IServerConfigurationManager ConfigurationManager { get; set; }
 
         private readonly IFileSystem _fileSystem;
-        private readonly ITimerFactory _timerFactory;
         private readonly IEnvironmentInfo _environmentInfo;
 
         /// <summary>
@@ -146,7 +144,6 @@ namespace Emby.Server.Implementations.IO
             ILibraryManager libraryManager,
             IServerConfigurationManager configurationManager,
             IFileSystem fileSystem,
-            ITimerFactory timerFactory,
             IEnvironmentInfo environmentInfo)
         {
             if (taskManager == null)
@@ -159,7 +156,6 @@ namespace Emby.Server.Implementations.IO
             Logger = loggerFactory.CreateLogger(GetType().Name);
             ConfigurationManager = configurationManager;
             _fileSystem = fileSystem;
-            _timerFactory = timerFactory;
             _environmentInfo = environmentInfo;
         }
 
@@ -460,8 +456,8 @@ namespace Emby.Server.Implementations.IO
             var filename = Path.GetFileName(path);
 
             var monitorPath = !string.IsNullOrEmpty(filename) &&
-                !_alwaysIgnoreFiles.Contains(filename, StringComparer.OrdinalIgnoreCase) &&
-                !_alwaysIgnoreExtensions.Contains(Path.GetExtension(path) ?? string.Empty, StringComparer.OrdinalIgnoreCase) &&
+                !_alwaysIgnoreFiles.Contains(filename) &&
+                !_alwaysIgnoreExtensions.Contains(Path.GetExtension(path)) &&
                 _alwaysIgnoreSubstrings.All(i => path.IndexOf(i, StringComparison.OrdinalIgnoreCase) == -1);
 
             // Ignore certain files
@@ -545,7 +541,7 @@ namespace Emby.Server.Implementations.IO
                     }
                 }
 
-                var newRefresher = new FileRefresher(path, _fileSystem, ConfigurationManager, LibraryManager, TaskManager, Logger, _timerFactory, _environmentInfo, LibraryManager);
+                var newRefresher = new FileRefresher(path, _fileSystem, ConfigurationManager, LibraryManager, TaskManager, Logger, _environmentInfo, LibraryManager);
                 newRefresher.Completed += NewRefresher_Completed;
                 _activeRefreshers.Add(newRefresher);
             }