private List <MatchResult> GetFileDuplicates(IComparableFile fileToFind, IEnumerable <IComparableFile> fileGroup, SearchContext context, CancellationToken cancellationToken)
{
var duplicates = new List <MatchResult>();
var matchThreshold = context.ComparerConfig.MatchThreshold.Value;
var completeMatch = context.ComparerConfig.CompleteMatch.Value;
var completeMismatch = context.ComparerConfig.CompleteMismatch.Value;
foreach (var fileFromGroup in fileGroup)
{
if (ReferenceEquals(fileFromGroup, fileToFind))
{
continue; //Skip self
}
int matchValue;
try
{
if ((matchValue = fileToFind.CompareTo(fileFromGroup, cancellationToken)) < matchThreshold)
{
continue;
}
}
catch (OperationCanceledException)
{
throw;
}
catch (FileSystemException ex)
{
OnFileSystemError(ex.FileFullName, ex.Message, ex);
continue;
}
catch (Exception ex)
{
OnFileSystemError(fileFromGroup.FileData.FullName, ex.Message, ex);
continue;
}
if (duplicates.Count == 0)
{
duplicates.Add(new MatchResult {
ComparableFile = fileToFind, MatchValue = completeMatch, CompleteMatch = completeMatch, CompleteMismatch = completeMismatch
});
}
duplicates.Add(new MatchResult {
ComparableFile = fileFromGroup, MatchValue = matchValue, CompleteMatch = completeMatch, CompleteMismatch = completeMismatch
});
}
return(duplicates);
}