Rename to LegacyDirectoryArchiveReader

osu.Game/Database/ArchiveModelManager.cs

@@ -485,7 +485,7 @@ private ArchiveReader getReaderFrom(string path)
             if (ZipUtils.IsZipArchive(path))
                 return new ZipArchiveReader(File.Open(path, FileMode.Open, FileAccess.Read, FileShare.Read), Path.GetFileName(path));
             if (Directory.Exists(path))
-                return new LegacyFilesystemReader(path);
+                return new LegacyDirectoryArchiveReader(path);
             throw new InvalidFormatException($"{path} is not a valid archive");
         }
     }

osu.Game/IO/Archives/LegacyDirectoryArchiveReader.cs

@@ -8,13 +8,13 @@
 namespace osu.Game.IO.Archives
 {
     /// <summary>
-    /// Reads an extracted legacy beatmap from disk.
+    /// Reads an archive from a directory on disk.
     /// </summary>
-    public class LegacyFilesystemReader : ArchiveReader
+    public class LegacyDirectoryArchiveReader : ArchiveReader
     {
         private readonly string path;
 
-        public LegacyFilesystemReader(string path)
+        public LegacyDirectoryArchiveReader(string path)
             : base(Path.GetFileName(path))
         {
             // re-get full path to standardise with Directory.GetFiles return values below.