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Lidarr/NzbDrone.Common/DiskProvider.cs

173 lines
5.2 KiB

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using NLog;
namespace NzbDrone.Common
{
public class DiskProvider
{
enum TransferAction
{
Copy,
Move
}
[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Auto)]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool GetDiskFreeSpaceEx(string lpDirectoryName,
out ulong lpFreeBytesAvailable,
out ulong lpTotalNumberOfBytes,
out ulong lpTotalNumberOfFreeBytes);
private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
public virtual bool FolderExists(string path)
{
return Directory.Exists(path);
}
public virtual bool FileExists(string path)
{
return File.Exists(path);
}
public virtual IEnumerable<string> GetDirectories(string path)
{
return Directory.EnumerateDirectories(path);
}
public virtual IEnumerable<string> GetFiles(string path, SearchOption searchOption)
{
return Directory.EnumerateFiles(path, "*.*", searchOption);
}
public virtual long GetDirectorySize(string path)
{
return GetFiles(path, SearchOption.AllDirectories).Sum(e => new FileInfo(e).Length);
}
public virtual long GetSize(string path)
{
var fi = new FileInfo(path);
return fi.Length;
//return new FileInfo(path).Length;
}
public virtual String CreateDirectory(string path)
{
return Directory.CreateDirectory(path).FullName;
}
public virtual void CopyDirectory(string source, string target)
{
TransferDirectory(source, target, TransferAction.Copy);
}
public virtual void MoveDirectory(string source, string destination)
{
try
{
TransferDirectory(source, destination, TransferAction.Move);
Directory.Delete(source, true);
}
catch (Exception e)
{
e.Data.Add("Source", source);
e.Data.Add("Destination", destination);
throw;
}
}
private void TransferDirectory(string source, string target, TransferAction transferAction)
{
Logger.Trace("{0} {1} -> {2}", transferAction, source, target);
var sourceFolder = new DirectoryInfo(source);
var targetFolder = new DirectoryInfo(target);
if (!targetFolder.Exists)
{
targetFolder.Create();
}
foreach (var subDir in sourceFolder.GetDirectories())
{
TransferDirectory(subDir.FullName, Path.Combine(target, subDir.Name), transferAction);
}
foreach (var sourceFile in sourceFolder.GetFiles("*.*", SearchOption.TopDirectoryOnly))
{
var destFile = Path.Combine(target, sourceFile.Name);
switch (transferAction)
{
case TransferAction.Copy:
{
sourceFile.CopyTo(destFile, true);
break;
}
case TransferAction.Move:
{
MoveFile(sourceFile.FullName, destFile);
break;
}
}
}
}
public virtual void DeleteFile(string path)
{
File.Delete(path);
}
public virtual void MoveFile(string sourcePath, string destinationPath)
{
if (FileExists(destinationPath))
{
DeleteFile(destinationPath);
}
File.Move(sourcePath, destinationPath);
}
public virtual void DeleteFolder(string path, bool recursive)
{
Directory.Delete(path, recursive);
}
public virtual DateTime DirectoryDateCreated(string path)
{
return Directory.GetCreationTime(path);
}
public virtual IEnumerable<FileInfo> GetFileInfos(string path, string pattern, SearchOption searchOption)
{
return new DirectoryInfo(path).EnumerateFiles(pattern, searchOption);
}
public virtual void InheritFolderPermissions(string filename)
{
var fs = File.GetAccessControl(filename);
fs.SetAccessRuleProtection(false, false);
File.SetAccessControl(filename, fs);
}
public virtual ulong FreeDiskSpace(DirectoryInfo directoryInfo)
{
ulong freeBytesAvailable;
ulong totalNumberOfBytes;
ulong totalNumberOfFreeBytes;
bool success = GetDiskFreeSpaceEx(directoryInfo.FullName, out freeBytesAvailable, out totalNumberOfBytes,
out totalNumberOfFreeBytes);
if (!success)
throw new System.ComponentModel.Win32Exception();
return freeBytesAvailable;
}
}
}