internal static int TryGetDirectoryAttributes(string normalizedPath, out FileAttributes attributes)
{
int errorCode = TryGetFileAttributes(normalizedPath, out attributes);
if (!LongPathDirectory.IsDirectory(attributes))
{
errorCode = NativeMethods.ERROR_DIRECTORY;
}
return(errorCode);
}
/// <summary>
/// Creates the specified directory.
/// </summary>
/// <param name="path">
/// A <see cref="String"/> containing the path of the directory to create.
/// </param>
/// <exception cref="ArgumentNullException">
/// <paramref name="path"/> is <see langword="null"/>.
/// </exception>
/// <exception cref="ArgumentException">
/// <paramref name="path"/> is an empty string (""), contains only white
/// space, or contains one or more invalid characters as defined in
/// <see cref="Path.GetInvalidPathChars()"/>.
/// <para>
/// -or-
/// </para>
/// <paramref name="path"/> contains one or more components that exceed
/// the drive-defined maximum length. For example, on Windows-based
/// platforms, components must not exceed 255 characters.
/// </exception>
/// <exception cref="PathTooLongException">
/// <paramref name="path"/> exceeds the system-defined maximum length.
/// For example, on Windows-based platforms, paths must not exceed
/// 32,000 characters.
/// </exception>
/// <exception cref="DirectoryNotFoundException">
/// <paramref name="path"/> contains one or more directories that could not be
/// found.
/// </exception>
/// <exception cref="UnauthorizedAccessException">
/// The caller does not have the required access permissions.
/// </exception>
/// <exception cref="IOException">
/// <paramref name="path"/> is a file.
/// <para>
/// -or-
/// </para>
/// <paramref name="path"/> specifies a device that is not ready.
/// </exception>
/// <remarks>
/// Note: Unlike <see cref="Directory.CreateDirectory(System.String)"/>, this method only creates
/// the last directory in <paramref name="path"/>.
/// </remarks>
public static void Create(string path)
{
string normalizedPath = LongPathCommon.NormalizeLongPath(path);
if (!NativeMethods.CreateDirectory(normalizedPath, IntPtr.Zero))
{
// To mimic Directory.CreateDirectory, we don't throw if the directory (not a file) already exists
int errorCode = Marshal.GetLastWin32Error();
if (errorCode != NativeMethods.ERROR_ALREADY_EXISTS || !LongPathDirectory.Exists(path))
{
throw LongPathCommon.GetExceptionFromWin32Error(errorCode);
}
}
}
internal static bool Exists(string path, out bool isDirectory)
{
string normalizedPath;
if (TryNormalizeLongPath(path, out normalizedPath))
{
FileAttributes attributes;
int errorCode = TryGetFileAttributes(normalizedPath, out attributes);
if (errorCode == 0)
{
isDirectory = LongPathDirectory.IsDirectory(attributes);
return(true);
}
}
isDirectory = false;
return(false);
}