kustomize: Configuration-Value nameSuffix is ignored

Whatever pathes are set for the ConfigurationValue nameSuffix are ignored. Only the Pathes from namePrefix are used for the Name-Transformer.

The Module api/internal/target/kusttarget_configplugin.go will just pass the ConfigurationParameter nameSuffix to FieldSpecs of PrefixSuffixTransformer (because the plugin/buildin/prefixsuffixtransformer/PrefixSuffixTransformer.go only supports one fieldSpecs-Array)

This means, that it is not possible to declare some pathes to only receive a Prefix OR a suffix, if both are configured.

I’m trying to expose the namePrefix and nameSuffix values automatically into a ArgoCD-Application Description. When I generate the Application with kustomize, I want to mirror the name-changes into spec/source/kustomize/{namePrefix|nameSuffix}

config.yaml

namePrefix:
- path: metadata/labels/prefix

nameSuffix:
- path: metadata/labels/suffix

test.yaml

kind: Test
metadata:
  name: test
  labels:
    prefix: ""
    suffix: ""

kustomization.yaml

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
configurations:
- config.yaml
resources:
- test.yaml

namePrefix: "pre-"
nameSuffix: "-suf"

Expected output

kind: Test
metadata:
  labels:
    prefix: pre-
    suffix: -suf
  name: pre-test-suf

Actual output

kind: Test
metadata:
  labels:
    prefix: pre--suf
    suffix: ""
  name: pre-test-suf

Kustomize version

3.9.4…4.3.0

Platform

Windows (3.9.4), Linux (4.3.0)