[jira] [Commented] (HDDS-190) Improve shell error message for unrecognized option

["Elek, Marton (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDDS-190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16604111#comment-16604111 ] 

Elek, Marton commented on HDDS-190:
-----------------------------------

My proposal is to use picocli. HDDS-379 introduced a new simple GenericCli interface which can support more advanced subcommand parsing. HDDS-398 also adopts this approach. 

I would implement it as soon as possible, as (IMHO) it help a lot for the first adopters to learn the usage of the system.

Let me know if you are planning to implement it, or we can move back to the unassigned pool. Would be happy to help if you need more information...

> Improve shell error message for unrecognized option
> ---------------------------------------------------
>
>                 Key: HDDS-190
>                 URL: https://issues.apache.org/jira/browse/HDDS-190
>             Project: Hadoop Distributed Data Store
>          Issue Type: Improvement
>            Reporter: Arpit Agarwal
>            Assignee: Sandeep Nemuri
>            Priority: Major
>              Labels: newbie
>             Fix For: 0.2.1
>
>
> The error message with an unrecognized option is unfriendly. E.g.
> {code}
> $ ozone oz -badOption
> Unrecognized option: -badOptionERROR: null
> {code}



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