/// <summary>
/// Gets a fingerprint of the current repository, which can be used to determine, whether
/// two repositories are different, or if a repository was modified in the meantime.
/// Equal fingerprints mean unchanged repositories, different fingerprints indicate
/// modifications in the repository.
/// </summary>
/// <remarks>
/// This method is optimized for speed, so it does not consider the whole content of the
/// repository, instead it uses the timestamps which would be used when merging.
/// </remarks>
/// <returns>A fingerprint representing the modification state.</returns>
public long GetModificationFingerprint()
{
unchecked
{
long hashCode = Id.GetHashCode();
hashCode = (hashCode * 397) ^ Revision;
hashCode = (hashCode * 397) ^ OrderModifiedAt.GetHashCode();
foreach (NoteModel note in Notes)
{
hashCode = (hashCode * 397) ^ note.ModifiedAt.GetHashCode();
if (note.MetaModifiedAt != null)
{
hashCode = (hashCode * 397) ^ note.MetaModifiedAt.GetHashCode();
}
}
foreach (Guid deletedNote in DeletedNotes)
{
hashCode = (hashCode * 397) ^ deletedNote.GetHashCode();
}
foreach (SafeModel safe in Safes)
{
hashCode = (hashCode * 397) ^ safe.ModifiedAt.GetHashCode();
if (safe.MaintainedAt != null)
{
hashCode = (hashCode * 397) ^ safe.MaintainedAt.GetHashCode();
}
}
return(hashCode);
}
}
/// <summary>
/// Gets a fingerprint of the current repository, which can be used to determine, whether
/// two repositories are different, or if a repository was modified in the meantime.
/// Equal fingerprints mean unchanged repositories, different fingerprints indicate
/// modifications in the repository.
/// </summary>
/// <remarks>
/// This method is optimized for speed, so it does not consider the whole content of the
/// repository, instead it uses the timestamps which would be used when merging.
/// </remarks>
/// <returns>A fingerprint representing the modification state.</returns>
public long GetModificationFingerprint()
{
unchecked
{
long hashCode = Id.GetHashCode();
hashCode = (hashCode * 397) ^ Revision;
hashCode = (hashCode * 397) ^ OrderModifiedAt.GetHashCode();
foreach (NoteModel note in Notes)
{
hashCode = (hashCode * 397) ^ note.ModifiedAt.GetHashCode();
}
foreach (Guid deletedNote in DeletedNotes)
{
hashCode = (hashCode * 397) ^ deletedNote.GetHashCode();
}
return(hashCode);
}
}
