Re: mdadm 2.1: command line option parsing bug?

[Michael Tokarev <mjt@tls.msk.ru>]

Neil Brown wrote:
[]
> I would like it to take an argument in contexts where --bitmap was
> meaningful (Create, Assemble, Grow) and not where --brief is
> meaningful (Examine, Detail).  but I don't know if getopt_long will
> allow the 'short_opt' string to be changed half way through
> processing...

getopt allows you to change both long and short options set
before every call (provided argv&argc are intact).  But.

Please, pretty please, don't implement the same options with
different meaning.  It's confusing at best.  Assign short options
to frequently-used commands, and leave only long options for the
rest.  I dunno whichever of --brief or --bitmap is more frequent,
I'd say both can be long-only, but since -b already stands for
--brief, don't use it for --bitmap.

> At the very least, I can print a message if '-b' is being interpreted
> as as --brief, but the option argument is present.
> 
> -a has the same problem (--add vs --auto).

And this is also bad.  In my opinion anyway.

/mjt