I'm trying to log to two different files from the same namespace with Timbre. Or if that's not possible, at least to different files from the two different namespaces.
Inspecting timbre/*config* I get the impression that I'd need two configuration maps to configure something like that. I can create another config map and use it with timbre/log* in place of the standard config map but I can't shake off the feeling that it's not how this is supposed to be used...?
(timbre/log* timbre/*config* :info "Test with standard config")
AFAIK, the easiest way is indeed to create two config maps:
(def config1
{:level :debug
:appenders {:spit1 (appenders/spit-appender {:fname "file1.log"})}})
(def config2
{:level :debug
:appenders {:spit2 (appenders/spit-appender {:fname "file2.log"})}})
(timbre/with-config config1
(info "This will print in file1") )
(timbre/with-config config2
(info "This will print in file2") )
A second way would be to write your own appender from the spit-appender:
https://github.com/ptaoussanis/timbre/blob/master/src/taoensso/timbre/appenders/core.cljx
(defn my-spit-appender
"Returns a simple `spit` file appender for Clojure."
[& [{:keys [fname] :or {fname "./timbre-spit.log"}}]]
{:enabled? true
:async? false
:min-level nil
:rate-limit nil
:output-fn :inherit
:fn
(fn self [data]
(let [{:keys [output_]} data]
(try
;; SOME LOGIC HERE TO CHOOSE THE FILE TO OUTPUT TO ...
(spit fname (str (force output_) "\n") :append true)
(catch java.io.IOException e
(if (:__spit-appender/retry? data)
(throw e) ; Unexpected error
(let [_ (have? enc/nblank-str? fname)
file (java.io.File. ^String fname)
dir (.getParentFile (.getCanonicalFile file))]
(when-not (.exists dir) (.mkdirs dir))
(self (assoc data :__spit-appender/retry? true))))))))})