Add ForceLabelChange functionalities

1 files changed, 27 insertions, 0 deletions

diff --git a/bug/op_label_change.go b/bug/op_label_change.go
index a2108941..0e7929b7 100644
--- a/bug/op_label_change.go
+++ b/bug/op_label_change.go
@@ -234,6 +234,33 @@ func ChangeLabels(b Interface, author identity.Interface, unixTime int64, add, r
 	return results, labelOp, nil
 }
 
+// ForceChangeLabels is a convenience function to apply the operation
+// The difference with ChangeLabels is that no checks of deduplications are done. You are entirely
+// responsible of what you are doing. In the general case, you want to use ChangeLabels instead.
+// The intended use of this function is to allow importers to create legal but unexpected label changes,
+// like removing a label with no information of when it was added before.
+func ForceChangeLabels(b Interface, author identity.Interface, unixTime int64, add, remove []string) (*LabelChangeOperation, error) {
+	added := make([]Label, len(add))
+	for i, str := range add {
+		added[i] = Label(str)
+	}
+
+	removed := make([]Label, len(remove))
+	for i, str := range remove {
+		removed[i] = Label(str)
+	}
+
+	labelOp := NewLabelChangeOperation(author, unixTime, added, removed)
+
+	if err := labelOp.Validate(); err != nil {
+		return nil, err
+	}
+
+	b.Append(labelOp)
+
+	return labelOp, nil
+}
+
 func labelExist(labels []Label, label Label) bool {
 	for _, l := range labels {
 		if l == label {