[kn-admin]Refine k8s client and flag check

zhanggbj commented 4 years ago

Refine k8s client init and align with kn client
Add preRunE to check flag values
Add default help

zhanggbj commented 4 years ago

Also CC @maximilien @rhuss for code review. Thanks!

knative-prow-robot commented 4 years ago

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: rhuss, zhanggbj

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Needs approval from an approver in each of these files: - ~~[plugins/admin/OWNERS](https://github.com/knative/client-contrib/blob/master/plugins/admin/OWNERS)~~ [rhuss,zhanggbj] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

knative / client-contrib

[kn-admin]Refine k8s client and flag check #25