Automatically disable kube-ps1 when no context is available

[dashie]

Is it possibile to automatically disable kube-ps1 when no context is set?
So have a empty string instead of (<symbol>|N/A:N/A)

[credativ-dar]

Just in case you missed that: kubeoff -g turns it off by default so you can just kubeon if you need it, I guess that's easier for most people than unsetting the context.

[jonmosco]

Yes, that is the solution for this is using the kubeon and kubeoff functions: https://github.com/jonmosco/kube-ps1?tab=readme-ov-file#enablingdisabling

[gitmpr]

kubeon and kubeoff only remove the kube-ps1 part from the PS1 string for the current shell. This is not exactly the requested feature here.

What we want instead is to conditionally remove the kube-ps1 part from the PS1 if no context is set. This can be achieved easily by adding an extra check and return early if no context is set

[[ "${KUBE_PS1_CONTEXT}" == "N/A" ]] && return

at the start of the kube_ps1() function

@jonmosco
If you can acknowledge this I can make a PR and also make it configurable with a KUBE_PS1_HIDE_IF_NOCONTEXT environment variable setting, set to false by default