zsh tab completion not working when 2+ contexts

[ahmetb]

$ kubectx
docker-for-desktop
gke_ahmetb-samples-playground_australia-southeast1-a_eu
gke_ahmetb-samples-playground_us-central1-b_demo
gke_istio-next-2_us-central1-b_demo
gke_istio-next-3_us-central1-b_demo
gke_istio-next-4_us-central1-b_demo
gke_istio-next-4_us-east4-a_east-coast
gke_istio-next-5_us-central1-a_istio-service-mesh
gke_istio-next-5_us-central1-b_demo
gke_istio-next_us-central1-b_demo
gke_microservices-demo-app_us-central1-b_demo-app

but when I do kubectxTabTab I get only two items:

$ kubectx -
-                   docker-for-desktop

which is basically the hardcoded - and the first context in the list.

When I edit the _kubectx script:

  9     _arguments "1: :((- \
 10         "${contexts[@]}" \
 11 |_______))"

to add a hardcoded name like:

  9     _arguments "1: :((- \
 10         "${contexts[@]}" \
 11         hardcoded_cluster
 12 |_______))"

tab completion shows everything correctly.

What's going on here?

[czchen]

I guess it is caused by different separators ( for - and \n for others) used in _arguments. Just change - separator to \n can solve the problem. Like the following:

    _arguments "1: :($(kubectl config get-contexts --output='name')
-)"

[ahmetb]

Weird, this no longer reproduces on my machine. It was there a few days ago when I had more contexts.

[ahmetb]

This is so weird and it only reproduces with the set of contexts listed above.

[ahmetb]

I tried multiple things here, like deleting the new line between - and the list:

  8     _arguments "1: :((- $(kubectl config get-contexts --output='name') ))"

adding new line after list, with \:

  8     _arguments "1: :((- \
  9         $(kubectl config get-contexts --output='name') \
 10         ))"

without \:

  8     _arguments "1: :((-
  9         $(kubectl config get-contexts --output='name')
 10         ))"

no luck, the problem still reproduces.

[czchen]

Try the following one? It works on my machine.

    _arguments "1: :(- $(kubectl config get-contexts --output='name'))"

I guess the problem is not \n, but the additional parenthesis.

[ahmetb]

You're right! This is working, even with the - and command separated out.