+sub other_gs {
+ my ($self, $new_url, $url, $repos_root,
+ $branch_from, $r, $old_ref_id) = @_;
+ my $gs = Git::SVN->find_by_url($new_url, $repos_root, $branch_from);
+ unless ($gs) {
+ my $ref_id = $old_ref_id;
+ $ref_id =~ s/\@\d+$//;
+ $ref_id .= "\@$r";
+ # just grow a tail if we're not unique enough :x
+ $ref_id .= '-' while find_ref($ref_id);
+ print STDERR "Initializing parent: $ref_id\n";
+ my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
+ if ($u =~ s#^\Q$url\E(/|$)##) {
+ $p = $u;
+ $u = $url;
+ $repo_id = $self->{repo_id};
+ }
+ $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
+ }
+ $gs
+}
+