@Override
public int compareTo(Commit o) {
if (o.equals(this)) return 0;
if (findInPredecessors(o)) return 1;
if (findInSuccessors(o)) return -1;
return time.compareTo(o.getTime());
}
private boolean findInPredecessors(Commit o) {
if (this.predecessor.contains(o)) return true;
for (Commit c : predecessor) if (c.findInPredecessors(o)) return true;
return false;
}
private boolean findInSuccessors(Commit o) {
if (this.successors.contains(o)) return true;
for (Commit c : successors) if (c.findInSuccessors(o)) return true;
return false;
}