TemporaryDirectory.cs

Go to the documentation of this file.

// Copyright (c) 2014 Silicon Studio Corp. (http://siliconstudio.co.jp)
// This file is distributed under GPL v3. See LICENSE.md for details.
#if SILICONSTUDIO_PLATFORM_WINDOWS_DESKTOP
using System;
using System.Diagnostics;
using System.IO;

namespace SiliconStudio.Core.IO
{
    public class TemporaryDirectory : IDisposable
    {
        private readonly string directoryPath;

        public TemporaryDirectory()
            : this(Guid.NewGuid().ToString().Substring(0, 8))
        {
        }

        public TemporaryDirectory(string path)
        {
            this.directoryPath = Path.GetFullPath(path);

            if (Directory.Exists(this.directoryPath))
            {
                throw new InvalidOperationException(string.Format("Directory {0} already exists.", path));
            }

            Directory.CreateDirectory(this.directoryPath);
        }

        public string DirectoryPath
        {
            get { return directoryPath; }
        }

        public void Dispose()
        {
            DeleteDirectory(directoryPath);
        }

        public static void DeleteDirectory(string directoryPath)
        {
            // From http://stackoverflow.com/questions/329355/cannot-delete-directory-with-directory-deletepath-true/329502#329502

            if (!Directory.Exists(directoryPath))
            {
                Trace.WriteLine(
                    string.Format("Directory '{0}' is missing and can't be removed.",
                        directoryPath));

                return;
            }

            string[] files = Directory.GetFiles(directoryPath);
            string[] dirs = Directory.GetDirectories(directoryPath);

            foreach (string file in files)
            {
                File.SetAttributes(file, FileAttributes.Normal);
                File.Delete(file);
            }

            foreach (string dir in dirs)
            {
                DeleteDirectory(dir);
            }

            try
            {
                File.SetAttributes(directoryPath, FileAttributes.Normal);
                Directory.Delete(directoryPath, false);
            }
            catch (IOException)
            {
                Trace.WriteLine(string.Format("{0}The directory '{1}' could not be deleted!" +
                                                    "{0}Most of the time, this is due to an external process accessing the files in the temporary repositories created during the test runs, and keeping a handle on the directory, thus preventing the deletion of those files." +
                                                    "{0}Known and common causes include:" +
                                                    "{0}- Windows Search Indexer (go to the Indexing Options, in the Windows Control Panel, and exclude the bin folder of LibGit2Sharp.Tests)" +
                                                    "{0}- Antivirus (exclude the bin folder of LibGit2Sharp.Tests from the paths scanned by your real-time antivirus){0}",
                    Environment.NewLine, Path.GetFullPath(directoryPath)));
            }
        }
    }
}
#endif