[GitHub] [pinot] walterddr opened a new issue #7710: Support extended functionalities in CLI

[GitBox <gi...@apache.org>]

walterddr opened a new issue #7710:
URL: https://github.com/apache/pinot/issues/7710


   #7673 outlines the major step to retire args4j and replace it with picocli.
   
   However there are a couple of follow-ups that we need to do to ensure better error messaging and raising earlier argument parsing exception 
   
   1. Add mutually exclusive option check for now. (e.g. -configFile cannot be used together with explicit config settings, but we dont error out for now)
   2. Add enum checker (e.g. -fileFormat accepts only ARVO/JSON/CSV... but not arbitrary string)
   3. Usage of `org.apache.pinot.tools.Command` and `org.apache.pinot.tools.AbstractBaseCommand` can be simplify because picocli natively supports --help and --version redirect.
   4. better printout for help messages and example.
   


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