List fails without default index

[junnplus]

[N] ❯ kubectl krew list
F1230 10:47:56.057894   30356 root.go:79] krew local plugin index is not initialized (run "kubectl krew update")

I still have the same problem after update.

list command always check default index, but update command will skip add default when found other index. https://github.com/kubernetes-sigs/krew/blob/master/cmd/krew/cmd/update.go#L139-L142

[ahmetb]

Thanks for the report. Do I understand your use case correctly:

• install krew
• krew index add $other-index
• krew list: fails with the error you mentioned?

[junnplus]

@ahmetb Yes, I need other index to install plugin.

[ahmetb]

Thanks that must be an oversight. We should allow using krew without the default index.

/kind bug
/area multi-index

[junnplus]

We should allow using krew without the default index.

I agree with you. The default index is not required.
So i make a PR to check existing index.