A little logging helper for Clojure/ClojureScript projects
Introduction ↟
This is just a tiny bit of code, but it was starting to get duplicated around a bunch of projects, so now there's twig.
Screenshots ↟
Clojure ↟
Usage in a Clojure REPL:
Clojurescript ↟
Output in a Node.js app written in Clojurescript:
Usage ↟
Add to your project.clj:
[clojusc/twig "0.3.1"]Then in a namespace of your choice:
(ns ...
(:require [clojusc.twig :as logger])
...)This will allow you to not only see nicely formatted log output (as configured
in the included resources/logback.xml file), but also do things like
setting the log level on a per-namespace basis:
(logger/set-level! '[com.datastax.driver
co.paralleluniverse]
:info)
(logger/set-level! 'my.project :debug)Note that the level can be any of the levels supported by
ch.qos.logback.classic Level
(see the source code.
As of now, those correspond to the following:
:off, :error, :warn, :info, :debug, :trace, and
:all. You may pass these as keywords, symbols, or strings.
:fatal is also supported; in Clojure this is aliased to :error, but in
Clojurescipt it is its own level.
There are, of course, other things you can do besides setting the level. In Clojure (not Clojurescript), you can do the following:
(require [clojure.tools.logging :as log])
(log/debug "Logging agent:" log/*logging-agent*)
(log/debug "Logging factory:" (logger/get-factory))
(log/debug "Logging factory name:" (logger/get-factory-name))
(log/debug "Logger:" (logger/get-logger *ns*))
(log/debug "Logger name:" (logger/get-logger-name *ns*))
(log/debug "Logger level:" (logger/get-logger-level *ns*))
(log/debug "Logger context:" (logger/get-logger-context *ns*))
(log/debug "Logger configurator:" (logger/get-config *ns*))License ↟
Copyright © 2016-2018, Clojure-Aided Enrichment Center
Copyright © 2016, Element 84, Inc.
Copyright © 2015, Duncan McGreggor
Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.