private IEnumerable <string> EnumerateEntriesInDirectory([NotNull] DirectoryEntry directory, [NotNull] PathPattern pattern,
[NotNull] AbsolutePath directoryPath, SearchOption searchOption, EnumerationFilter filter)
{
PathPattern subPattern = pattern.SubPattern;
if (subPattern == null)
{
Container.ChangeTracker.NotifyContentsAccessed(directory.PathFormatter, FileAccessKinds.Read);
foreach (BaseEntry entry in directory.EnumerateEntries(filter).Where(x => pattern.IsMatch(x.Name))
.OrderBy(x => x.Name))
{
string basePath = directoryPath.GetText();
yield return(Path.Combine(basePath, entry.Name));
}
if (searchOption == SearchOption.AllDirectories)
{
foreach (DirectoryEntry subdirectory in directory.Directories)
{
AbsolutePath subdirectoryPath = directoryPath.Append(subdirectory.Name);
foreach (string nextPath in EnumerateEntriesInDirectory(subdirectory, pattern, subdirectoryPath,
searchOption, filter))
{
yield return(nextPath);
}
}
}
}
else
{
foreach (DirectoryEntry subdirectory in directory.Directories)
{
if (pattern.IsMatch(subdirectory.Name))
{
AbsolutePath subdirectoryPath = directoryPath.Append(subdirectory.Name);
foreach (string nextPath in EnumerateEntriesInDirectory(subdirectory, subPattern, subdirectoryPath,
searchOption, filter))
{
yield return(nextPath);
}
}
}
}
}
private static void AssertIsNotReadOnly([NotNull] DirectoryEntry directory, [NotNull] AbsolutePath directoryPath)
{
if (directory.Attributes.HasFlag(FileAttributes.ReadOnly))
{
throw ErrorFactory.System.AccessDenied(directoryPath.GetText());
}
foreach (FileEntry file in directory.Files.Values)
{
AssertFileIsNotReadOnly(file);
}
foreach (DirectoryEntry subdirectory in directory.Directories.Values)
{
AbsolutePath subdirectoryPath = directoryPath.Append(subdirectory.Name);
AssertIsNotReadOnly(subdirectory, subdirectoryPath);
}
}
private static AbsolutePath GetTempFilePath([NotNull] FileEntry file)
{
AbsolutePath directoryPath = file.Parent.PathFormatter.GetPath();
return(directoryPath.Append("EFS0.TMP"));
}
