/// <summary>
/// Enumerates local files in the WoW directory
/// </summary>
/// <param name="searchPattern"></param>
/// <returns></returns>
public IEnumerable <IFormat> Enumerate(string searchPattern, bool useParallelization = true)
{
searchPattern = Utils.CorrectSearchPattern(searchPattern);
var fileReader = new FileReader(_build, _options);
var files = Directory.EnumerateFiles(_directory, searchPattern, SearchOption.AllDirectories);
bool includeFileInfo = _options.ParseMode.HasFlag(ParseMode.FileInfo);
string localDir = _directory + Path.DirectorySeparatorChar;
ConcurrentBag <IFormat> resultSet = new ConcurrentBag <IFormat>();
ParallelOptions options = new ParallelOptions()
{
MaxDegreeOfParallelism = useParallelization ? -1 : 1
};
Parallel.ForEach(files, options, file =>
{
string filename = file.Replace(localDir, "", _comparison).WoWNormalize();
// validate search criteria
if (Utils.IsInvalidFile(filename, _options))
{
return;
}
using var md5 = MD5.Create();
using var stream = File.OpenRead(file);
using var bs = new BufferedStream(stream);
Structures.Meta.FileInfo entry = new Structures.Meta.FileInfo()
{
Build = _build.Build,
Name = filename
};
if (includeFileInfo)
{
entry.Checksum = md5.ComputeHash(stream).ToChecksum();
entry.Created = Utils.GetLocalFileCreated(filename);
entry.Size = (uint)stream.Length;
}
resultSet.Add(fileReader.Read(bs, entry));
});
return(resultSet);
}
/// <summary>
/// Parses the archive file.
/// </summary>
/// <param name="mpq"></param>
/// <param name="filename"></param>
/// <param name="overridename">Alpha MPQ filename override.</param>
/// <returns></returns>
private IFormat ReadFileImpl(MpqArchive mpq, string filename, string overridename = null)
{
using var md5 = MD5.Create();
using var stream = mpq.OpenFile(overridename ?? filename);
if (stream == null || !stream.CanRead || stream.Length <= 1)
{
return(null);
}
// validate filesize limit
if (_options.MaxFileSize > 0 && stream.Length > _options.MaxFileSize)
{
return(null);
}
Structures.Meta.FileInfo entry = new Structures.Meta.FileInfo()
{
Build = _build.Build,
Name = filename.WoWNormalize()
};
if (_options.ParseMode.HasFlag(ParseMode.FileInfo))
{
entry.Checksum = stream.GetMd5Hash();
if (string.IsNullOrWhiteSpace(entry.Checksum) || entry.Checksum == EMPTY_CHECKSUM)
{
entry.Checksum = md5.ComputeHash(stream).ToChecksum();
}
entry.Created = stream.CreatedDate;
entry.Size = (uint)stream.Length;
}
stream.FileName = filename;
using var bs = new BufferedStream(stream);
return(_fileReader.Read(bs, entry));
}
