[Feature Request] doveadm option to return number of messages acted upon

[A. Schulze]

Haravikk:

> So I have a script for handling my specific archive and expunge  
> needs, but it’d be nice to be able to track how many messages are  
> being affected.
>
> Currently I’m doing it by firing the same search queries into  
> doveadm search and counting the lines of the result with wc -l, but  
> that’s not a very pretty solution. While I’m mostly doing it out of  
> interest on a personal server, I can’t imagine it’s a very scalable  
> way to do it if you wanted to gather some kind of metrics for example.
>
> What I think would make sense would be for relevant doveadm commands  
> such as move, expunge (probably purge too) and others I haven’t  
> thought of to have a new option that, if enabled, will cause the  
> command to output the number of messages affected as the final line  
> of output (most of these commands don’t have any output anyway). A  
> doveadm count command could also be a convenient, more efficient,  
> alternative to doveadm search | wc -l.

+1
statistics are always nice

Andreas