mirror of https://github.com/ppy/osu
92 lines
3.3 KiB
C#
92 lines
3.3 KiB
C#
// 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.IO;
|
|
using osu.Framework.Platform;
|
|
|
|
namespace osu.Game.IO
|
|
{
|
|
/// <summary>
|
|
/// A storage which wraps another storage and delegates implementation, potentially mutating the lookup path.
|
|
/// </summary>
|
|
public class WrappedStorage : Storage
|
|
{
|
|
protected Storage UnderlyingStorage { get; private set; }
|
|
|
|
private readonly string subPath;
|
|
|
|
public WrappedStorage(Storage underlyingStorage, string subPath = null)
|
|
: base(string.Empty)
|
|
{
|
|
ChangeTargetStorage(underlyingStorage);
|
|
|
|
this.subPath = subPath;
|
|
}
|
|
|
|
protected virtual string MutatePath(string path)
|
|
{
|
|
if (path == null)
|
|
return null;
|
|
|
|
return !string.IsNullOrEmpty(subPath) ? Path.Combine(subPath, path) : path;
|
|
}
|
|
|
|
protected virtual void ChangeTargetStorage(Storage newStorage)
|
|
{
|
|
UnderlyingStorage = newStorage;
|
|
}
|
|
|
|
public override string GetFullPath(string path, bool createIfNotExisting = false) =>
|
|
UnderlyingStorage.GetFullPath(MutatePath(path), createIfNotExisting);
|
|
|
|
public override bool Exists(string path) =>
|
|
UnderlyingStorage.Exists(MutatePath(path));
|
|
|
|
public override bool ExistsDirectory(string path) =>
|
|
UnderlyingStorage.ExistsDirectory(MutatePath(path));
|
|
|
|
public override void DeleteDirectory(string path) =>
|
|
UnderlyingStorage.DeleteDirectory(MutatePath(path));
|
|
|
|
public override void Delete(string path) =>
|
|
UnderlyingStorage.Delete(MutatePath(path));
|
|
|
|
public override IEnumerable<string> GetDirectories(string path) =>
|
|
ToLocalRelative(UnderlyingStorage.GetDirectories(MutatePath(path)));
|
|
|
|
public IEnumerable<string> ToLocalRelative(IEnumerable<string> paths)
|
|
{
|
|
string localRoot = GetFullPath(string.Empty);
|
|
|
|
foreach (string path in paths)
|
|
yield return Path.GetRelativePath(localRoot, UnderlyingStorage.GetFullPath(path));
|
|
}
|
|
|
|
public override IEnumerable<string> GetFiles(string path, string pattern = "*") =>
|
|
ToLocalRelative(UnderlyingStorage.GetFiles(MutatePath(path), pattern));
|
|
|
|
public override Stream GetStream(string path, FileAccess access = FileAccess.Read, FileMode mode = FileMode.OpenOrCreate) =>
|
|
UnderlyingStorage.GetStream(MutatePath(path), access, mode);
|
|
|
|
public override bool OpenFileExternally(string filename) => UnderlyingStorage.OpenFileExternally(MutatePath(filename));
|
|
|
|
public override bool PresentFileExternally(string filename) => UnderlyingStorage.PresentFileExternally(MutatePath(filename));
|
|
|
|
public override Storage GetStorageForDirectory(string path)
|
|
{
|
|
if (string.IsNullOrEmpty(path))
|
|
throw new ArgumentException("Must be non-null and not empty string", nameof(path));
|
|
|
|
if (!path.EndsWith(Path.DirectorySeparatorChar))
|
|
path += Path.DirectorySeparatorChar;
|
|
|
|
// create non-existing path.
|
|
GetFullPath(path, true);
|
|
|
|
return new WrappedStorage(this, path);
|
|
}
|
|
}
|
|
}
|