1 files changed, 0 insertions, 128 deletions
diff --git a/bug/operations/label_change.go b/bug/operations/label_change.go
deleted file mode 100644
index 551b8be0..00000000
--- a/bug/operations/label_change.go
+++ /dev/null
@@ -1,128 +0,0 @@
-package operations
-
-import (
-	"fmt"
-	"io"
-	"io/ioutil"
-	"sort"
-
-	"github.com/MichaelMure/git-bug/bug"
-)
-
-var _ bug.Operation = LabelChangeOperation{}
-
-// LabelChangeOperation define a Bug operation to add or remove labels
-type LabelChangeOperation struct {
-	bug.OpBase
-	Added   []bug.Label
-	Removed []bug.Label
-}
-
-// Apply apply the operation
-func (op LabelChangeOperation) Apply(snapshot bug.Snapshot) bug.Snapshot {
-	// Add in the set
-AddLoop:
-	for _, added := range op.Added {
-		for _, label := range snapshot.Labels {
-			if label == added {
-				// Already exist
-				continue AddLoop
-			}
-		}
-
-		snapshot.Labels = append(snapshot.Labels, added)
-	}
-
-	// Remove in the set
-	for _, removed := range op.Removed {
-		for i, label := range snapshot.Labels {
-			if label == removed {
-				snapshot.Labels[i] = snapshot.Labels[len(snapshot.Labels)-1]
-				snapshot.Labels = snapshot.Labels[:len(snapshot.Labels)-1]
-			}
-		}
-	}
-
-	// Sort
-	sort.Slice(snapshot.Labels, func(i, j int) bool {
-		return string(snapshot.Labels[i]) < string(snapshot.Labels[j])
-	})
-
-	return snapshot
-}
-
-func NewLabelChangeOperation(author bug.Person, added, removed []bug.Label) LabelChangeOperation {
-	return LabelChangeOperation{
-		OpBase:  bug.NewOpBase(bug.LabelChangeOp, author),
-		Added:   added,
-		Removed: removed,
-	}
-}
-
-// ChangeLabels is a convenience function to apply the operation
-func ChangeLabels(out io.Writer, b bug.Interface, author bug.Person, add, remove []string) error {
-	// TODO: return a channel of result (like MergeAll) instead of formatting the result for the upper layers
-	var added, removed []bug.Label
-
-	if out == nil {
-		out = ioutil.Discard
-	}
-
-	snap := b.Compile()
-
-	for _, str := range add {
-		label := bug.Label(str)
-
-		// check for duplicate
-		if labelExist(added, label) {
-			fmt.Fprintf(out, "label \"%s\" is a duplicate\n", str)
-			continue
-		}
-
-		// check that the label doesn't already exist
-		if labelExist(snap.Labels, label) {
-			fmt.Fprintf(out, "label \"%s\" is already set on this bug\n", str)
-			continue
-		}
-
-		added = append(added, label)
-	}
-
-	for _, str := range remove {
-		label := bug.Label(str)
-
-		// check for duplicate
-		if labelExist(removed, label) {
-			fmt.Fprintf(out, "label \"%s\" is a duplicate\n", str)
-			continue
-		}
-
-		// check that the label actually exist
-		if !labelExist(snap.Labels, label) {
-			fmt.Fprintf(out, "label \"%s\" doesn't exist on this bug\n", str)
-			continue
-		}
-
-		removed = append(removed, label)
-	}
-
-	if len(added) == 0 && len(removed) == 0 {
-		return fmt.Errorf("no label added or removed")
-	}
-
-	labelOp := NewLabelChangeOperation(author, added, removed)
-
-	b.Append(labelOp)
-
-	return nil
-}
-
-func labelExist(labels []bug.Label, label bug.Label) bool {
-	for _, l := range labels {
-		if l == label {
-			return true
-		}
-	}
-
-	return false
-}