/// <summary>
/// Aggregates a Build changelog onto a Commit AggregatedChangelog
/// </summary>
/// <param name="aggregated">The AggragatedChangelog from a Commit</param>
/// <returns></returns>
public AggregatedChangelog AggregateFrom(AggregatedChangelog aggregated)
{
if (IsNull)
{
return(aggregated);
}
var parent = (Build)Parents[0];
AggregatedChangelog aggregate = parent.AggregateFrom(aggregated);
aggregate.AggregateNext(this);
return(aggregate);
}
/// <summary>
/// Agregates a changelog from this commit to its ancestor
/// </summary>
/// <param name="ancestor">this and ancestor must form a boolean algrebra with ancestor at the top</param>
/// <returns></returns>
public AggregatedChangelog AncestorChangelog(Commit ancestor)
{
if (ancestor.Hash == Hash)
{
return(AggregatedChangelog.EmptyChangelog());
}
Commit next = Parents[0];
for (int i = 1; i < Parents.Length; i++)
{
next = LCAFind(next, Parents[i]);
}
AggregatedChangelog aggregate = next.AncestorChangelog(ancestor);
aggregate.AggregateNext(this);
return(aggregate);
}
/// <summary>
/// Aggregates the changelog from initial commit to this commit
/// </summary>
/// <returns></returns>
public AggregatedChangelog AggregateChangelog()
{
if (IsNull)
{
return(AggregatedChangelog.EmptyChangelog());
}
if (Parents.Length == 0 || Parents[0].IsNull)
{
return(new AggregatedChangelog(this));
}
Commit next = Parents[0];
for (int i = 1; i < Parents.Length; i++)
{
next = LCAFind(next, Parents[i]);
}
AggregatedChangelog aggregate = next.AggregateChangelog();
aggregate.AggregateNext(this);
return(aggregate);
}