Initial commit changing to on-demand child loading and validations

MediaBrowser.Controller/Resolvers/EntityResolutionHelper.cs

@@ -0,0 +1,68 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.IO;
+using MediaBrowser.Controller.IO;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Entities.TV;
+
+namespace MediaBrowser.Controller.Resolvers
+{
+    public static class EntityResolutionHelper
+    {
+        /// <summary>
+        /// Any folder named in this list will be ignored - can be added to at runtime for extensibility
+        /// </summary>
+        public static List<string> IgnoreFolders = new List<string>()
+        {
+            "trailers",
+            "metadata",
+            "bdmv",
+            "certificate",
+            "backup",
+            "video_ts",
+            "audio_ts",
+            "ps3_update",
+            "ps3_vprm"
+        };
+        /// <summary>
+        /// Determines whether a path should be resolved or ignored entirely - called before we even look at the contents
+        /// </summary>
+        /// <param name="path"></param>
+        /// <returns>false if the path should be ignored</returns>
+        public static bool ShouldResolvePath(WIN32_FIND_DATA path)
+        {
+            bool resolve = true;
+            // Ignore hidden files and folders
+            if (path.IsHidden || path.IsSystemFile)
+            {
+                resolve = false;
+            }
+
+            // Ignore any folders in our list
+            else if (path.IsDirectory && IgnoreFolders.Contains(Path.GetFileName(path.Path), StringComparer.OrdinalIgnoreCase))
+            {
+                resolve =  false;
+            }
+
+            return resolve;
+        }
+
+        /// <summary>
+        /// Determines whether a path should be ignored based on its contents - called after the contents have been read
+        /// </summary>
+        public static bool ShouldResolvePathContents(ItemResolveEventArgs args)
+        {
+            bool resolve = true;
+            if (args.ContainsFile(".ignore"))
+            {
+                // Ignore any folders containing a file called .ignore
+                resolve = false;
+            }
+
+            return resolve;
+        }
+    }
+}