pcsx2/tools/GSDumpGUI/Forms/Helper/FolderWithFallBackFinder.cs

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/*
* Copyright (C) 2009-2019 PCSX2 Dev Team
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
using System;
using System.IO;
using System.Linq;
namespace GSDumpGUI.Forms.Helper
{
public class FolderWithFallBackFinder : IFolderWithFallBackFinder
{
public DirectoryInfo GetViaPatternWithFallback(string defaultDir, string filePattern, params string[] fallBackFolder)
{
if (!string.IsNullOrWhiteSpace(defaultDir))
return new DirectoryInfo(defaultDir);
DirectoryInfo gsdxDllDirectory;
if (TryGetExistingDirectory(fallBackFolder, filePattern, out gsdxDllDirectory))
return gsdxDllDirectory;
return new DirectoryInfo(AppDomain.CurrentDomain.BaseDirectory);
}
private static bool TryGetExistingDirectory(string[] relativePaths, string pattern, out DirectoryInfo validDirectory)
{
if (relativePaths == null)
throw new ArgumentNullException(nameof(relativePaths));
foreach (var relativePath in relativePaths)
{
var candidate = new DirectoryInfo(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, relativePath));
if (candidate.Exists && candidate.GetFiles(pattern).Any())
{
validDirectory = candidate;
return true;
}
}
validDirectory = null;
return false;
}
}
}