add debug logging messages

MediaBrowser.Server.Implementations/Library/CoreResolutionIgnoreRule.cs

@@ -1,6 +1,7 @@
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.Resolvers;
+using MediaBrowser.Model.Logging;
 using System;
 using System.Collections.Generic;
 using System.IO;
@@ -13,6 +14,8 @@ namespace MediaBrowser.Server.Implementations.Library
     /// </summary>
     public class CoreResolutionIgnoreRule : IResolverIgnoreRule
     {
+        private readonly ILogger _logger;
+
         /// <summary>
         /// Any folder named in this list will be ignored - can be added to at runtime for extensibility
         /// </summary>
@@ -27,6 +30,11 @@ namespace MediaBrowser.Server.Implementations.Library
             "extrafanart"
         };
 
+        public CoreResolutionIgnoreRule(ILogger logger)
+        {
+            _logger = logger;
+        }
+
         /// <summary>
         /// Shoulds the ignore.
         /// </summary>
@@ -51,6 +59,8 @@ namespace MediaBrowser.Server.Implementations.Library
                     {
                         return false;
                     }
+
+                    _logger.Error("Operating system reports drive is not ready: {0}", args.Path);
                 }
 
                 return true;

MediaBrowser.Server.Implementations/Library/LibraryManager.cs

@@ -405,6 +405,7 @@ namespace MediaBrowser.Server.Implementations.Library
 
             if (!fileInfo.Exists)
             {
+                _logger.Error("Path in library does not exist or is unavailable: " + path);
                 return null;
             }
 
@@ -437,8 +438,10 @@ namespace MediaBrowser.Server.Implementations.Library
                 {
                     var paths = args.FileSystemDictionary.Keys.ToList();
 
-                    foreach (var subPath in paths.Where(subPath => paths.Any(i => subPath.StartsWith(i.TrimEnd(System.IO.Path.DirectorySeparatorChar) + System.IO.Path.DirectorySeparatorChar, StringComparison.OrdinalIgnoreCase))))
+                    foreach (var subPath in paths
+                        .Where(subPath => !subPath.EndsWith(":\\", StringComparison.OrdinalIgnoreCase) && paths.Any(i => subPath.StartsWith(i.TrimEnd(Path.DirectorySeparatorChar) + Path.DirectorySeparatorChar, StringComparison.OrdinalIgnoreCase))))
                     {
+                        _logger.Info("Ignoring duplicate path: {0}", subPath);
                         args.FileSystemDictionary.Remove(subPath);
                     }
                 }