From 602661db40328f5a75261175fa19a1b0567161b3 Mon Sep 17 00:00:00 2001
From: Zoe Roux <zoe.roux@sdg.moe>
Date: Thu, 7 May 2020 05:12:41 +0200
Subject: [PATCH] Handling directory errors on library scan

---
 Kyoo/Tasks/Crawler.cs | 30 +++++++++++++++++++++++++++---
 1 file changed, 27 insertions(+), 3 deletions(-)

diff --git a/Kyoo/Tasks/Crawler.cs b/Kyoo/Tasks/Crawler.cs
index 73cb25b2..4f6b734d 100644
--- a/Kyoo/Tasks/Crawler.cs
+++ b/Kyoo/Tasks/Crawler.cs
@@ -79,14 +79,38 @@ namespace Kyoo.Controllers
 			{
 				if (cancellationToken.IsCancellationRequested)
 					return;
-				
-				await Task.WhenAll(Directory.GetFiles(path, "*", SearchOption.AllDirectories).Select(file =>
+				string[] files;
+				try
+				{
+					files = Directory.GetFiles(path, "*", SearchOption.AllDirectories);
+				}
+				catch (DirectoryNotFoundException)
+				{
+					Console.Error.WriteLine($"The library's directory {path} could not be found (library slug: {library.Slug})");
+					continue;
+				}
+				catch (PathTooLongException)
+				{
+					Console.Error.WriteLine($"The library's directory {path} is too long for this system. (library slug: {library.Slug})");
+					continue;
+				}
+				catch (ArgumentException)
+				{
+					Console.Error.WriteLine($"The library's directory {path} is invalid. (library slug: {library.Slug})");
+					continue;
+				}
+				catch (UnauthorizedAccessException)
+				{
+					Console.Error.WriteLine($"Permission denied: can't access library's directory at {path}. (library slug: {library.Slug})");
+					continue;
+				}
+				await Task.WhenAll(files.Select(file =>
 				{
 					if (!IsVideo(file) || _libraryManager.GetEpisodes().Any(x => x.Path == file))
 						return null;
 					string relativePath = file.Substring(path.Length);
 					return RegisterFile(file, relativePath, library, cancellationToken);
-				}));
+				}).Where(x => x != null));
 			}
 		}