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osu-lazer/osu.Game/Database/LegacyBeatmapImporter.cs

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2021-11-25 15:56:19 +08:00
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System;
using System.Collections.Generic;
using System.Linq;
using osu.Framework.Logging;
using osu.Framework.Platform;
using osu.Game.Beatmaps;
using osu.Game.IO;
namespace osu.Game.Database
{
public class LegacyBeatmapImporter : LegacyModelImporter<BeatmapSetInfo>
{
protected override string ImportFromStablePath => ".";
protected override Storage PrepareStableStorage(StableStorage stableStorage) => stableStorage.GetSongStorage();
protected override IEnumerable<string> GetStableImportPaths(Storage storage)
{
// make sure the directory exists
if (!storage.ExistsDirectory(string.Empty))
return Array.Empty<string>();
List<string> paths = new List<string>();
try
{
foreach (string directory in storage.GetDirectories(string.Empty))
{
var directoryStorage = storage.GetStorageForDirectory(directory);
try
{
if (!directoryStorage.GetFiles(string.Empty, "*.osu").Any())
{
// if a directory doesn't contain any beatmap files, look for further nested beatmap directories.
// this is a special behaviour in stable for beatmaps only, see https://github.com/ppy/osu/issues/18615.
foreach (string subDirectory in GetStableImportPaths(directoryStorage))
paths.Add(subDirectory);
}
else
paths.Add(storage.GetFullPath(directory));
}
catch (Exception e)
{
// Catch any errors when enumerating files
Logger.Log($"Error when enumerating files in {directoryStorage.GetFullPath(string.Empty)}: {e}");
}
}
}
catch (Exception e)
{
// Catch any errors when enumerating directories
Logger.Log($"Error when enumerating directories in {storage.GetFullPath(string.Empty)}: {e}");
}
return paths;
}
public LegacyBeatmapImporter(IModelImporter<BeatmapSetInfo> importer)
: base(importer)
{
}
}
}