private void AddToTable(Table table, IFileSystemInformation info)
{
table.AddRow
(
info.LastWriteTime.ToString(DefaultTimeFormat),
(info is IDirectoryInformation) ? "<DIR>" : "",
(info is IFileInformation) ? ((IFileInformation)info).Length.ToString(DefaultNumberFormat) : "",
info.Name
);
}
private void AddToTable(Table table, IFileSystemInformation info)
{
table.AddRow
(
info.LastWriteTime.ToString(DefaultTimeFormat),
(info is IDirectoryInformation) ? "<DIR>" : "",
(info is IFileInformation) ? ((IFileInformation)info).Length.ToString(DefaultNumberFormat) : "",
info.Name
);
}
/// <summary>
/// Walk directories in the current directory. Allows filtering by attributes. Folders with the given attributes will be skipped as well.
/// </summary>
/// <param name="fileSystemInformation">If the information is not a directory, returns an empty enumerable.</param>
public static IEnumerable <IDirectoryInformation> EnumerateDirectories(
this IFileSystemInformation fileSystemInformation,
string searchPattern = "*",
SearchOption searchOption = SearchOption.TopDirectoryOnly,
FileAttributes excludeAttributes = FileAttributes.Hidden | FileAttributes.System | FileAttributes.ReparsePoint)
{
var directoryInfo = fileSystemInformation as IDirectoryInformation;
if (directoryInfo == null)
{
return(Enumerable.Empty <IDirectoryInformation>());
}
return(directoryInfo.EnumerateChildren(ChildType.Directory, searchPattern, searchOption, excludeAttributes).OfType <IDirectoryInformation>());
}
internal static IEnumerable <IFileSystemInformation> EnumerateChildrenInternal(
string directory,
ChildType childType,
string searchPattern,
System.IO.SearchOption searchOption,
System.IO.FileAttributes excludeAttributes,
IFileService fileService)
{
var firstFile = NativeMethods.FileManagement.FindFirstFile(Paths.Combine(directory, searchPattern));
var findInfo = firstFile;
if (firstFile != null)
{
// Look for specified file/directories
do
{
bool isDirectory = findInfo.Attributes.HasFlag(System.IO.FileAttributes.Directory);
if ((findInfo.Attributes & excludeAttributes) == 0 &&
findInfo.FileName != "." &&
findInfo.FileName != ".." &&
((isDirectory && childType == ChildType.Directory) ||
(!isDirectory && childType == ChildType.File)))
{
yield return(FileSystemInformation.Create(findInfo, fileService));
}
findInfo = NativeMethods.FileManagement.FindNextFile(firstFile);
} while (findInfo != null);
firstFile.FindHandle.Close();
}
if (searchOption != System.IO.SearchOption.AllDirectories)
{
yield break;
}
// Need to recurse to find additional matches
firstFile = NativeMethods.FileManagement.FindFirstFile(Paths.Combine(directory, "*"), directoriesOnly: true);
if (firstFile == null)
{
yield break;
}
findInfo = firstFile;
do
{
if ((findInfo.Attributes & excludeAttributes) == 0 &&
findInfo.Attributes.HasFlag(System.IO.FileAttributes.Directory) &&
findInfo.FileName != "." &&
findInfo.FileName != "..")
{
IFileSystemInformation childDirectory = DirectoryInformation.Create(findInfo, fileService);
foreach (var child in EnumerateChildrenInternal(childDirectory.Path, childType, searchPattern, searchOption, excludeAttributes, fileService))
{
yield return(child);
}
}
findInfo = NativeMethods.FileManagement.FindNextFile(firstFile);
} while (findInfo != null);
firstFile.FindHandle.Close();
}
