protected void CompareScreenshots(ExecutionOptions options, IUserConfig userConfig)
{
_logger.LogDebug("Starting the compare mode");
var galleryModel = new GalleryModel
{
SourceDirectory = GetDirectory(userConfig.SourceDirectory),
TargetDirectory = GetDirectory(userConfig.TargetDirectory),
ResultDirectory = _directoryUtils.GenerateDirectoryFromPattern(userConfig.ResultDirectory)
};
if (!Directory.Exists(galleryModel.ResultDirectory))
{
try
{
Directory.CreateDirectory(galleryModel.ResultDirectory);
}
catch (Exception ex)
{
_logger.LogError(EventIds.CannotCreateeResutFolder, ex, $"Cannot create the directory {galleryModel.ResultDirectory}");
throw;
}
}
var parallelOptions = new ParallelOptions()
{
MaxDegreeOfParallelism = userConfig.NumberOfThreads <= 0 ? 10 : userConfig.NumberOfThreads
};
Parallel.ForEach(Directory.GetFiles(galleryModel.SourceDirectory), parallelOptions, (sourceFile) =>
{
var targetFile = sourceFile.Replace(galleryModel.SourceDirectory, galleryModel.TargetDirectory);
var resultFile = sourceFile.Replace(galleryModel.SourceDirectory, galleryModel.ResultDirectory);
//Check if the diff file already exist and delete it if necessary
CheckIfDiffFileExistAndDeleteItIsNecessary(resultFile);
if (File.Exists(targetFile))
{
//Compare the images
var percentageOfDifference = _imageComparer.Compare(sourceFile, targetFile, userConfig.Fuzziness, resultFile, userConfig.HighlightColor);
var urlTuple = GetUrlTupleFromUserConfig(userConfig, sourceFile);
galleryModel.Lines.Add(new GalleryLine()
{
DifferenceRate = percentageOfDifference,
DifferencesImage = resultFile,
SourceImage = sourceFile,
TargetImage = targetFile,
Name = Path.GetFileName(sourceFile),
//Url = urlTuple?.Value
});
}
else
{
_logger.LogError($"The file '{sourceFile}' exist in the source but is not present in the target: '{targetFile}'");
}
});
//Create the galleries
try
{
_razorRenderer.RenderAndSave(userConfig.GalleryTemplateFullPath, galleryModel, userConfig.GalleryResult);
}
catch (Exception ex)
{
_logger.LogError(ex, $"Error when rendering the gallery of differences. Template: '{userConfig.GalleryTemplateFullPath}'");
throw;
}
}
