[jira] [Commented] (SOLR-17359) Make SolrCLI handle arg parsing of zk sub commands

["Eric Pugh (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-17359?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17863206#comment-17863206 ] 

Eric Pugh commented on SOLR-17359:
----------------------------------

One thought, do we like the sub command pattern?   Is that how modern "good" CLI's are built?   If so, then do we think this is an opportunity to improve commons-cli instead of rolling our own code?   (and if so what would that look like??)

> Make SolrCLI handle arg parsing of zk sub commands
> --------------------------------------------------
>
>                 Key: SOLR-17359
>                 URL: https://issues.apache.org/jira/browse/SOLR-17359
>             Project: Solr
>          Issue Type: Sub-task
>          Components: scripts and tools
>            Reporter: Jan Høydahl
>            Priority: Major
>
> Both  bin/solr and bin/solr.cmd have lots of shell code to parse the zk sub commands, and to print the usage text. We have both a short zk uage text and the full one.
> {code:java}
> Usage: solr zk upconfig|downconfig -d <confdir> -n <configName> [-z zkHost] [-s solrUrl]"
>        solr zk cp [-r] <src> <dest> [-z zkHost] [-s solrUrl]"
>        solr zk rm [-r] <path> [-z zkHost] [-s solrUrl]"
>        solr zk mv <src> <dest> [-z zkHost] [-s solrUrl]"
>        solr zk ls [-r] <path> [-z zkHost] [-s solrUrl]"
>        solr zk mkroot <path> [-z zkHost] [-s solrUrl]"
>        solr zk linkconfig --conf-name <confname> -c <collection> [-z zkHost] [-s solrUrl]"
>        solr zk updateacls <path> [-z zkHost] [-s solrUrl]" {code}
> Extend SolrCLI and tools API to handle sub commands more natively so that doing {{solr zk -h}} shows a list of sub commands, while `solr zk cp -h` shows usage for that sub command.
> I think commons-cli does not have native subcommand support like e.g. picocli, but it should be possible to implement..



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