Add build options for logger verbosity

[Momomentum]

In one of my projects, the log gets quickly filled by debug messages. It would be great if there was a way to let the user configure the log level for app/library.

Here is a proposal for setting log level via cmake, but I could also imagine to set the level at runtime.

[aldipower]

Oh nice! That's what I need too. rtpmidid is running 24/7 on my server trying to connect to my MioXL midi router, that is only powered some hours a day. This spams the syslog.

There is also an issue decribed #139

@davidmoreno What do you think?

[davidmoreno]

Hi,

Sorry for the time between updates, I've been busy, but found some time today.

I finally rewrote this part as I ddi not like messing with the template parameters. I did two options:

• Compile time with a -DLOG_LEVEL=<1-4> so its even not compiled in, and should be a bit leaner (not much, but elides compilation of DEBUG, INFO and so on, so its something).
• Runtime using --log-level=min_level or config log_level=min_level.

Options for level are debug, info, warning or error.

I think for you guys the most interesting would be the config file option.

Regards,
David.

[aldipower]

Sound great. Thank you so much @davidmoreno