Verbose option

[suntong]

Can go-arg provide the accumulative option like what ssh or rsync does for verbose in future please?

I.e., the more -v are specified on the command line, the more verbose it will be. This will be good for other purpose like debug as well. From the manual page of rsync(1):

   --verbose, -v            increase verbosity

          This option increases the amount of information  you  are  given
          during  the transfer.  By default, rsync works silently.  A sin-
          gle -v will give you information  about  what  files  are  being
          transferred and a brief summary at the end.  Two -v options will
          give you  information  on  what  files  are  being  skipped  and
          slightly  more information at the end.  More than two -v options
          should only be used if you are debugging rsync.

[alexflint]

There is no way to do this at present. I'm open to implementing it.

[suntong]

Here is how I did it with the go-flags package that supports function callbacks:

https://github.com/go-easygen/go-flags-demo/blob/9bd93b8afac3a2ad36bbb96e7e0e9a7230ea8756/go-flags-demo_main.go#L47-L49

	opts.Verbflg = func() {
		opts.Verbose++
	}

Just for reference, I'm sure you'll find a better way, :)