public void PreProcessImages(string setCodesStr, bool nonToken, bool token) { setupImageConversion(); FsPath smallDir = DevPaths.GathererOriginalDir; FsPath zoomDir = DevPaths.GathererPreprocessedDir; FsPath smallDirBak = BakDir.Join(smallDir.Basename()); FsPath zoomDirBak = BakDir.Join(zoomDir.Basename()); var setCodes = setCodesStr?.Split(',').ToHashSet(StringComparer.OrdinalIgnoreCase); IEnumerable <FsPath> getSetSubdirs(FsPath typeSubdir) { FsPath typeDir = smallDir.Join(typeSubdir); return(typeDir .EnumerateDirectories(_fromPng ? "*.png" : "*", SearchOption.TopDirectoryOnly) .Select(_ => new FsPath( Regex.Replace( _.Basename(), @"\.png$", string.Empty)))); } foreach ((_, FsPath typeSubdir, _) in getIsToken(nonToken, token)) { foreach (FsPath setSubdir in getSetSubdirs(typeSubdir)) { if (setCodes?.Contains(setSubdir.Value) == false) { continue; } FsPath smallJpgDir = smallDir.Join(typeSubdir, setSubdir); FsPath zoomJpgDir = zoomDir.Join(typeSubdir, setSubdir); if (!_fromPng) { if (!_createZoom) { return; } zoomJpgDir.CreateDirectory(); foreach (FsPath smallImg in smallJpgDir.EnumerateFiles()) { FsPath zoomImg = smallImg.ChangeDirectory(smallDir, zoomDir); if (_keepExisting && zoomImg.IsFile() && isZoomed(zoomImg)) { continue; } scale(smallImg, zoomImg); } } else { FsPath setPngSubdir = setSubdir.Concat(".png"); FsPath smallPngDir = smallDir.Join(typeSubdir, setPngSubdir); FsPath smallPngDirBak = smallDirBak.Join(typeSubdir, setPngSubdir); FsPath zoomPngDir = zoomDir.Join(typeSubdir, setPngSubdir); FsPath zoomPngDirBak = zoomDirBak.Join(typeSubdir, setPngSubdir); var dirs = new List <(FsPath pngDir, FsPath pngDirBak, FsPath jpgDir, bool isZoom)>(); if (_createZoom) { zoomPngDir.CreateDirectory(); foreach (FsPath smallImg in smallPngDir.EnumerateFiles()) { FsPath zoomImg = smallImg.ChangeDirectory(smallDir, zoomDir); FsPath convertedImg = zoomImg.ChangeDirectory(zoomPngDir, zoomJpgDir) .WithName(_ => _.Replace(".png", ".jpg")); if (_keepExisting && ( zoomImg.IsFile() && isZoomed(zoomImg) || convertedImg.IsFile() && isZoomed(convertedImg))) { continue; } scale(smallImg, zoomImg); } dirs.Add((pngDir: zoomPngDir, pngDirBak: zoomPngDirBak, jpgDir: zoomJpgDir, isZoom: true)); } dirs.Add((pngDir: smallPngDir, pngDirBak: smallPngDirBak, jpgDir: smallJpgDir, isZoom: false)); foreach ((FsPath pngDir, FsPath pngDirBak, FsPath jpgDir, bool isZoom) in dirs) { jpgDir.CreateDirectory(); var pngImages = pngDir.EnumerateFiles(); foreach (FsPath sourceImage in pngImages) { convertToJpg(sourceImage, jpgDir, isZoom); } moveDirectoryToBackup(pngDir, pngDirBak); } } } } }