Merge pull request #4424 from koba1t/feature/allow_setting_every_arra…

…y_element_in_replacements

Allow setting every array element in replacements

api/filters/replacement/replacement.go

@@ -119,20 +119,41 @@ func applyToNode(node *yaml.RNode, value *yaml.RNode, target *types.TargetSelect
 		if target.Options != nil && target.Options.Create {
 			t, err = node.Pipe(yaml.LookupCreate(value.YNode().Kind, fieldPath...))
 		} else {
-			t, err = node.Pipe(yaml.Lookup(fieldPath...))
+			t, err = node.Pipe(&yaml.PathMatcher{Path: fieldPath})
 		}
 		if err != nil {
 			return err
 		}
 		if t != nil {
-			if err = setTargetValue(target.Options, t, value); err != nil {
+			if err = applyToOneNode(target.Options, t, value); err != nil {
 				return err
 			}
 		}
 	}
 	return nil
 }
 
+func applyToOneNode(options *types.FieldOptions, t *yaml.RNode, value *yaml.RNode) error {
+	if len(t.YNode().Content) == 0 {
+		if err := setTargetValue(options, t, value); err != nil {
+			return err
+		}
+		return nil
+	}
+
+	for _, scalarNode := range t.YNode().Content {
+		if options != nil && options.Create {
+			return fmt.Errorf("cannot use create option in a multi-value target")
+		}
+		rn := yaml.NewRNode(scalarNode)
+		if err := setTargetValue(options, rn, value); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
 func setTargetValue(options *types.FieldOptions, t *yaml.RNode, value *yaml.RNode) error {
 	value = value.Copy()
 	if options != nil && options.Delimiter != "" {
@@ -152,7 +173,9 @@ func setTargetValue(options *types.FieldOptions, t *yaml.RNode, value *yaml.RNod
 		}
 		value.YNode().Value = strings.Join(tv, options.Delimiter)
 	}
+
 	t.SetYNode(value.YNode())
+
 	return nil
 }