reduce memory usage from file system info

MediaBrowser.Controller/IO/FileData.cs

@@ -37,14 +37,16 @@ namespace MediaBrowser.Controller.IO
             {
                 var isDirectory = (entry.Attributes & FileAttributes.Directory) == FileAttributes.Directory;
 
-                if (resolveShortcuts && FileSystem.IsShortcut(entry.FullName))
+                var fullName = entry.FullName;
+
+                if (resolveShortcuts && FileSystem.IsShortcut(fullName))
                 {
-                    var newPath = FileSystem.ResolveShortcut(entry.FullName);
+                    var newPath = FileSystem.ResolveShortcut(fullName);
 
                     if (string.IsNullOrWhiteSpace(newPath))
                     {
                         //invalid shortcut - could be old or target could just be unavailable
-                        logger.Warn("Encountered invalid shortcut: " + entry.FullName);
+                        logger.Warn("Encountered invalid shortcut: " + fullName);
                         continue;
                     }
 
@@ -57,18 +59,18 @@ namespace MediaBrowser.Controller.IO
                         args.AddAdditionalLocation(newPath);
                     }
 
-                    dict[data.FullName] = data;
+                    dict[newPath] = data;
                 }
                 else if (flattenFolderDepth > 0 && isDirectory)
                 {
-                    foreach (var child in GetFilteredFileSystemEntries(entry.FullName, logger, flattenFolderDepth: flattenFolderDepth - 1, resolveShortcuts: resolveShortcuts))
+                    foreach (var child in GetFilteredFileSystemEntries(fullName, logger, flattenFolderDepth: flattenFolderDepth - 1, resolveShortcuts: resolveShortcuts))
                     {
                         dict[child.Key] = child.Value;
                     }
                 }
                 else
                 {
-                    dict[entry.FullName] = entry;
+                    dict[fullName] = entry;
                 }
             }
 

MediaBrowser.Controller/Library/ItemResolveArgs.cs

@@ -112,7 +112,7 @@ namespace MediaBrowser.Controller.Library
                     return false;
                 }
 
-                var parentDir = System.IO.Path.GetDirectoryName(FileInfo.FullName) ?? string.Empty;
+                var parentDir = System.IO.Path.GetDirectoryName(Path) ?? string.Empty;
 
                 return (parentDir.Length > _appPaths.RootFolderPath.Length
                     && parentDir.StartsWith(_appPaths.RootFolderPath, StringComparison.OrdinalIgnoreCase));

MediaBrowser.Controller/Library/TVUtils.cs

@@ -179,7 +179,7 @@ namespace MediaBrowser.Controller.Library
         private static bool IsSeasonFolder(string path)
         {
             // It's a season folder if it's named as such and does not contain any audio files, apart from theme.mp3
-            return GetSeasonNumberFromPath(path) != null && !new DirectoryInfo(path).EnumerateFiles().Any(i => EntityResolutionHelper.IsAudioFile(i.FullName) && !string.Equals(Path.GetFileNameWithoutExtension(i.Name), BaseItem.ThemeSongFilename));
+            return GetSeasonNumberFromPath(path) != null && !Directory.EnumerateFiles(path).Any(i => EntityResolutionHelper.IsAudioFile(i) && !string.Equals(Path.GetFileNameWithoutExtension(i), BaseItem.ThemeSongFilename));
         }
 
         /// <summary>
@@ -223,7 +223,9 @@ namespace MediaBrowser.Controller.Library
                 }
                 else
                 {
-                    if (EntityResolutionHelper.IsVideoFile(child.FullName) && GetEpisodeNumberFromFile(child.FullName, false).HasValue)
+                    var fullName = child.FullName;
+
+                    if (EntityResolutionHelper.IsVideoFile(fullName) && GetEpisodeNumberFromFile(fullName, false).HasValue)
                     {
                         return true;
                     }
@@ -275,7 +277,7 @@ namespace MediaBrowser.Controller.Library
         }
 
         private static readonly CultureInfo UsCulture = new CultureInfo("en-US");
-        
+
         private static int? ParseEpisodeNumber(string val)
         {
             int num;