private bool ExistsWithMatchingHash(IArchiveFileEntry entry, string path)
{
if (CoreData?.GetFileDataEntryByHash(entry.Hash) != null)
{
return(true);
}
if (!File.Exists(path))
{
return(false);
}
using (var fileStream = File.Open(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
using (var sha1 = SHA1.Create())
{
var hash = sha1.ComputeHash(fileStream);
if (hash.SequenceEqual(entry.Hash))
{
return(true);
}
}
}
return(false);
}