Create image migration code

.env.example

@@ -6,6 +6,8 @@
 
 # Library root can either be an absolute path or a relative path to your docker-compose.yml file.
 LIBRARY_ROOT=./video
+# You should set this to a path where kyoo can write large amount of data, this is used as a cache by the transcoder.
+# It will automatically be cleaned up on kyoo's startup/shutdown/runtime.
 CACHE_ROOT=/tmp/kyoo_cache
 LIBRARY_LANGUAGES=en
 # A pattern (regex) to ignore video files.
@@ -61,8 +63,6 @@ OIDC_SERVICE_SCOPE="the list of scopes space separeted like email identity"
 
 # To debug the front end, you can set the following to an external backend
 KYOO_URL=
-# The library root inside the container.
-KYOO_LIBRARY_ROOT=/video
 
 # Database things
 POSTGRES_USER=KyooUser

back/src/Kyoo.Core/Controllers/ThumbnailsManager.cs

@@ -179,8 +179,8 @@ public class ThumbnailsManager(
 		string directory = item switch
 		{
 			IResource res
-				=> Path.Combine("./metadata", item.GetType().Name.ToLowerInvariant(), res.Slug),
-			_ => Path.Combine("./metadata", typeof(T).Name.ToLowerInvariant())
+				=> Path.Combine("/metadata", item.GetType().Name.ToLowerInvariant(), res.Slug),
+			_ => Path.Combine("/metadata", typeof(T).Name.ToLowerInvariant())
 		};
 		Directory.CreateDirectory(directory);
 		return Path.Combine(directory, image);

back/src/Kyoo.Core/Program.cs

@@ -27,7 +27,6 @@ using Kyoo.RabbitMq;
 using Kyoo.Swagger;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
-using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Serilog;
 using Serilog.Events;
@@ -94,12 +93,41 @@ app.UseRouting();
 app.UseAuthentication();
 app.MapControllers();
 
-// Set current directory, used by thumbnails for example.
-string path = Path.GetFullPath(builder.Configuration.GetValue("DATADIR", "/kyoo")!);
-if (!Directory.Exists(path))
-	Directory.CreateDirectory(path);
-Environment.CurrentDirectory = path;
-Log.Information("Data directory: {DataDirectory}", Environment.CurrentDirectory);
+// TODO: wait 4.5.0 and delete this
+static void MoveAll(DirectoryInfo source, DirectoryInfo target)
+{
+	if (source.FullName == target.FullName)
+		return;
+
+	Directory.CreateDirectory(target.FullName);
+
+	foreach (FileInfo fi in source.GetFiles())
+		fi.MoveTo(Path.Combine(target.ToString(), fi.Name), true);
+
+	foreach (DirectoryInfo diSourceSubDir in source.GetDirectories())
+	{
+		DirectoryInfo nextTargetSubDir = target.CreateSubdirectory(diSourceSubDir.Name);
+		MoveAll(diSourceSubDir, nextTargetSubDir);
+	}
+	Directory.Delete(source.FullName);
+}
+
+try
+{
+	string oldDir = "/kyoo/metadata";
+	if (Path.Exists(oldDir))
+	{
+		MoveAll(new DirectoryInfo(oldDir), new DirectoryInfo("/metadata"));
+		Log.Information("Old metadata directory migrated.");
+	}
+}
+catch (Exception ex)
+{
+	Log.Fatal(
+		ex,
+		"Unhandled error while trying to migrate old metadata images to new directory. Giving up and continuing normal startup."
+	);
+}
 
 // Activate services that always run in the background
 app.Services.GetRequiredService<MeiliSync>();

back/src/Kyoo.Core/Views/Helper/CrudThumbsApi.cs

@@ -34,27 +34,10 @@ namespace Kyoo.Core.Api;
 /// </summary>
 /// <typeparam name="T">The type of resource to make CRUD and thumbnails apis for.</typeparam>
 [ApiController]
-public class CrudThumbsApi<T> : CrudApi<T>
+public class CrudThumbsApi<T>(IRepository<T> repository, IThumbnailsManager thumbs)
+	: CrudApi<T>(repository)
 	where T : class, IResource, IThumbnails, IQuery
 {
-	/// <summary>
-	/// The thumbnail manager used to retrieve images paths.
-	/// </summary>
-	private readonly IThumbnailsManager _thumbs;
-
-	/// <summary>
-	/// Create a new <see cref="CrudThumbsApi{T}"/> that handles crud requests and thumbnails.
-	/// </summary>
-	/// <param name="repository">
-	/// The repository to use as a baking store for the type <typeparamref name="T"/>.
-	/// </param>
-	/// <param name="thumbs">The thumbnail manager used to retrieve images paths.</param>
-	public CrudThumbsApi(IRepository<T> repository, IThumbnailsManager thumbs)
-		: base(repository)
-	{
-		_thumbs = thumbs;
-	}
-
 	private async Task<IActionResult> _GetImage(
 		Identifier identifier,
 		string image,
@@ -67,7 +50,7 @@ public class CrudThumbsApi<T> : CrudApi<T>
 		);
 		if (resource == null)
 			return NotFound();
-		string path = _thumbs.GetImagePath(resource, image, quality ?? ImageQuality.High);
+		string path = thumbs.GetImagePath(resource, image, quality ?? ImageQuality.High);
 		if (!System.IO.File.Exists(path))
 			return NotFound();