Fish completion is broken for option flags if/when leading options contain "special" shell characters.

[ichekrygin]

What happened:
Type kubectl command and invoke [TAB] completion after the "-" prefix .

kubectl get pod -l 'app in(test)' -[TAB]

What you expected to happen:
Expected to see completion options like the following:

kubectl get pod -l 'app in(foo)' -
-A  --all-namespaces                                                                     (If present, list the requested object(s) across all namespaces. Namespace in current context is ignored even if specified with --namespace.)
-f  --filename                                                                                                                                   (Filename, directory, or URL to files identifying the resource to get from a server.)
-h  --help                                                                                                                                                                                                              (help for get)
-k  --kustomize                
...

Instead, kubectl fish completion reports an error:

kubectl get pod -l 'app in(foo)' -fish: Unknown command: foo
in command substitution
        called on line 1 of file /opt/homebrew/share/fish/vendor_completions.d/kubectl.fish
in command substitution
        called on line 42 of file /opt/homebrew/share/fish/vendor_completions.d/kubectl.fish
in function '__kubectl_perform_completion'
        called on line 1 of file /opt/homebrew/share/fish/vendor_completions.d/kubectl.fish
in command substitution
        called on line 84 of file /opt/homebrew/share/fish/vendor_completions.d/kubectl.fish
in function '__kubectl_perform_completion_once'
        called on line 106 of file /opt/homebrew/share/fish/vendor_completions.d/kubectl.fish
in function '__kubectl_requires_order_preservation'
in command substitution
/opt/homebrew/share/fish/vendor_completions.d/kubectl.fish (line 1): Unknown command
KUBECTL_ACTIVE_HELP=0 kubectl __complete get pod -l app in(foo) -
                                                          ^~~~^
...

How to reproduce it (as minimally and precisely as possible):

kubectl get pod -l 'app in (foo)' -[TAB]

Anything else we need to know?:
This issue is due to the BUG in https://github.com/spf13/cobra with pending fix in PR: spf13/cobra#2095

Environment:

• Kubernetes client and server versions (use kubectl version): Client Version: v1.29.2
• Cloud provider or hardware configuration: N/A
• OS (e.g: cat /etc/os-release): Any/All

[k8s-ci-robot]

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[eddiezane]

Parenthesis ( ) are not valid characters for labels. Were you able to label a pod that way?

https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#syntax-and-character-set

Edit: TIL we have filter querying builtin https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#list-and-watch-filtering

/triage accepted

[mohitsharma-in]

Folks can i pick this up

[Ritikaa96]

Hi @mohitsharma-in if you think you can work to solve this issue you can self assign with /assign .