mirror of https://github.com/ppy/osu
71 lines
2.4 KiB
C#
71 lines
2.4 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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#nullable disable
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using System;
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using System.IO;
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using System.Linq;
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using osu.Framework.Platform;
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namespace osu.Game.IO
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{
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/// <summary>
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/// A storage pointing to an osu-stable installation.
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/// Provides methods for handling installations with a custom Song folder location.
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/// </summary>
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public class StableStorage : DesktopStorage
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{
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public const string STABLE_DEFAULT_SONGS_PATH = "Songs";
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private readonly DesktopGameHost host;
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private readonly Lazy<string> songsPath;
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public StableStorage(string path, DesktopGameHost host)
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: base(path, host)
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{
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this.host = host;
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songsPath = new Lazy<string>(locateSongsDirectory);
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}
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/// <summary>
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/// Returns a <see cref="Storage"/> pointing to the osu-stable Songs directory.
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/// </summary>
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public Storage GetSongStorage() => new DesktopStorage(songsPath.Value, host);
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private string locateSongsDirectory()
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{
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var configurationFiles = GetFiles(".", $"osu!.{Environment.UserName}.cfg");
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// GetFiles returns case insensitive results, so multiple files could exist.
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// Prefer a case-correct match, but fallback to any available.
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string usableConfigFile =
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configurationFiles.FirstOrDefault(f => f.Contains(Environment.UserName, StringComparison.Ordinal))
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?? configurationFiles.FirstOrDefault();
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if (usableConfigFile != null)
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{
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using (var stream = GetStream(usableConfigFile))
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using (var textReader = new StreamReader(stream))
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{
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string line;
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while ((line = textReader.ReadLine()) != null)
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{
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if (!line.StartsWith("BeatmapDirectory", StringComparison.OrdinalIgnoreCase)) continue;
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string customDirectory = line.Split('=').LastOrDefault()?.Trim();
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if (customDirectory != null && Path.IsPathFullyQualified(customDirectory))
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return customDirectory;
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break;
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}
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}
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}
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return GetFullPath(STABLE_DEFAULT_SONGS_PATH);
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}
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}
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}
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