YAML strings in kubectl output not coloured as strings

[luisdavim]

Some yaml values like quoted booleans are coloured as booleans instead of strings. And strings with colons are also not coloured as strings, even when quoted, they appear to be coloured like a key/value pair.

[lazywalker]

hi, can you post the yaml sample and command to reproduce the issuse. thaks :)

[luisdavim]

for example, on the following command:

$ rgrc kubectl get po cert-manager-776494b6cf-9bz6w -n cert-manager -oyaml
apiVersion: v1
kind: Pod
metadata:
  annotations:
    prometheus.io/path: /metrics
    prometheus.io/port: "9402"
    prometheus.io/scrape: "true"
  creationTimestamp: "2026-02-16T15:07:56Z"
  generateName: cert-manager-776494b6cf-
  labels:
    app: cert-manager
    app.kubernetes.io/component: controller
    app.kubernetes.io/instance: cert-manager
    app.kubernetes.io/name: cert-manager
    app.kubernetes.io/version: v1.13.3
    pod-template-hash: 776494b6cf
  name: cert-manager-776494b6cf-9bz6w
  namespace: cert-manager
  ownerReferences:
  - apiVersion: apps/v1
    blockOwnerDeletion: true
    controller: true
    kind: ReplicaSet
    name: cert-manager-776494b6cf
    uid: edb582fd-066f-497a-b749-440a0e337e24
  resourceVersion: "669"
  uid: 283ee673-0d61-4f9a-aa59-475244269413
spec:
  containers:
  - args:
    - --v=2
    - --cluster-resource-namespace=$(POD_NAMESPACE)
    - --leader-election-namespace=kube-system
    - --acme-http01-solver-image=quay.io/jetstack/cert-manager-acmesolver:v1.13.3
    - --max-concurrent-challenges=60
    env:
    - name: POD_NAMESPACE
      valueFrom:
        fieldRef:
          apiVersion: v1
          fieldPath: metadata.namespace
    image: quay.io/jetstack/cert-manager-controller:v1.13.3
    imagePullPolicy: IfNotPresent
    name: cert-manager-controller
    ports:
    - containerPort: 9402
      name: http-metrics
      protocol: TCP
    - containerPort: 9403
      name: http-healthz
      protocol: TCP
    resources: {}
    securityContext:
      allowPrivilegeEscalation: false
      capabilities:
        drop:
        - ALL
    terminationMessagePath: /dev/termination-log
    terminationMessagePolicy: File
    volumeMounts:
    - mountPath: /var/run/secrets/kubernetes.io/serviceaccount
      name: kube-api-access-2dtsp
      readOnly: true
  dnsPolicy: ClusterFirst
  enableServiceLinks: false
  nodeName: capi-mgmt-local-control-plane
  nodeSelector:
    kubernetes.io/os: linux
  preemptionPolicy: PreemptLowerPriority
  priority: 0
  restartPolicy: Always
  schedulerName: default-scheduler
  securityContext:
    runAsNonRoot: true
    seccompProfile:
      type: RuntimeDefault
  serviceAccount: cert-manager
  serviceAccountName: cert-manager
  terminationGracePeriodSeconds: 30
  tolerations:
  - effect: NoExecute
    key: node.kubernetes.io/not-ready
    operator: Exists
    tolerationSeconds: 300
  - effect: NoExecute
    key: node.kubernetes.io/unreachable
    operator: Exists
    tolerationSeconds: 300
  volumes:
  - name: kube-api-access-2dtsp
    projected:
      defaultMode: 420
      sources:
      - serviceAccountToken:
          expirationSeconds: 3607
          path: token
      - configMap:
          items:
          - key: ca.crt
            path: ca.crt
          name: kube-root-ca.crt
      - downwardAPI:
          items:
          - fieldRef:
              apiVersion: v1
              fieldPath: metadata.namespace
            path: namespace
status:
  conditions:
  - lastProbeTime: null
    lastTransitionTime: "2026-02-16T15:08:02Z"
    status: "True"
    type: PodReadyToStartContainers
  - lastProbeTime: null
    lastTransitionTime: "2026-02-16T15:07:56Z"
    status: "True"
    type: Initialized
  - lastProbeTime: null
    lastTransitionTime: "2026-02-16T15:08:02Z"
    status: "True"
    type: Ready
  - lastProbeTime: null
    lastTransitionTime: "2026-02-16T15:08:02Z"
    status: "True"
    type: ContainersReady
  - lastProbeTime: null
    lastTransitionTime: "2026-02-16T15:07:56Z"
    status: "True"
    type: PodScheduled
  containerStatuses:
  - containerID: containerd://26486c3d0b9c299ee32383ca96cd8cbc0bdd3f8f4c2ba2e20239868803490e48
    image: quay.io/jetstack/cert-manager-controller:v1.13.3
    imageID: quay.io/jetstack/cert-manager-controller@sha256:2121d4250f5734ee097df243507d06536fc264140dba3425045a825ef597c79d
    lastState: {}
    name: cert-manager-controller
    ready: true
    restartCount: 0
    started: true
    state:
      running:
        startedAt: "2026-02-16T15:08:02Z"
    volumeMounts:
    - mountPath: /var/run/secrets/kubernetes.io/serviceaccount
      name: kube-api-access-2dtsp
      readOnly: true
      recursiveReadOnly: Disabled
  qosClass: BestEffort
  startTime: "2026-02-16T15:07:56Z"

with grc:

and:

with rgrc:

and:

[lazywalker]

The issue can be solved if we compile rgrc with --features fancy-regex, but the binary size would increase from ~700KB to ~2MB. I’m treating this as a trade-off for now, but I might be able to fix it by updating the rules in conf.kubectl to avoid the extra overhead.

[sedlund]

Is it related to these with ps -ef ?

grc correct:

rgrc:

grc correct:

[lazywalker]

to validate the latest fix 60632fd:

1. save @luisdavim 's sample yml to test.yml
2. cat test.yml | cargo run --quiet -- -c kubectl
3. cat test.yml | grcat share/conf.kubectl

[lazywalker]

release v0.6.12 will solved this issue by update conf.ps from the newmaster branch of original grc:

df8b24a#diff-543a71c326327cd6569a417ba481d83a8fe0630ee6638926c5d3d1a27fff91b0

oh btw, since v0.6.11 the embed-configs feature will not enabled by default, @sedlund would you like to update the packaing script of NixOS if it's using default features?

thanks:)

Is it related to these with ps -ef ?

grc correct:

rgrc:

grc correct:

[sedlund]

thanks for the heads up i will update the pkg 🍻

[luisdavim]

I can confirm my use case is fixed. Thanks