Use numeric log levels instead of (or in addition to) named levels?

[edvald]

Just a thought. I for one always get confused as to which is more verbose, "verbose" or "debug". And I can imagine us wanting to set multiple levels at some point.

For example, in kubectl you can set --v=8 to dump a lot of logs. We could for example alias the named levels to the numeric levels (0=error, 1=warning, 2=info etc.), and perhaps make l an alias for --loglevel to make it more concise.

[eysi09]

Yeah, I agree we should have the numeric levels as well since the names tend to differ between languages/frameworks. E.g. Rails has :debug, :info, :warn, :error, :fatal, and :unknown.

And we could easily extend the number of levels as well although it feels like that could be a bit confusing. What's the difference between --v=7 and --v=8 for instance? And how should the developer decide which one to use?

[eysi09]

Fixed in #194