Misc housekeeping

src/taoensso/timbre.cljx

@@ -111,7 +111,7 @@
    #+clj :timestamp-opts
    #+clj default-timestamp-opts ; {:pattern _ :locale _ :timezone _}
 
-   :output-fn default-output-fn ; (fn [data]) -> string
+   :output-fn default-output-fn ; (fn [data & [opts]]) -> string
 
    :appenders
    #+clj
@@ -222,12 +222,6 @@
           (keyword (or (env-val "TIMBRE_LEVEL")
                        (env-val "TIMBRE_LOG_LEVEL")))))
 
-(defn get-active-level [& [config]] (or (:level (or config *config*)) :report))
-
-(comment
-  (qb 10000 (get-active-level))
-  (binding [*config* {:level :trace}] (level>= :trace (get-active-level))))
-
 ;;;; ns filter
 
 (def ^:private compile-ns-filters
@@ -311,15 +305,24 @@
 
 (defn log?
   "Would Timbre currently log at the given logging level?
-    * ns filtering requires a compile-time `?ns-str` to be provided.
-    * Non-global config requires an explicit `config` to be provided."
+    * Compile-time `?ns-str` arg required to support ns filtering.
+    * `config` arg required to support non-global config."
   [level & [?ns-str config]]
-  (let [config (or config *config*)]
-    (and (level>= level (get-active-level config))
+  (let [config (or config *config*)
+        active-level (or (:level config) :report)]
+    (and (level>= level active-level)
          (ns-filter (:ns-whitelist config) (:ns-blacklist config) (or ?ns-str ""))
          true)))
 
-(comment (log? :trace))
+(comment
+  (set-level! :debug)
+  (log? :trace)
+  (with-level :trace (log? :trace))
+  (qb 10000 (log? :trace))       ; ~2.5ms
+  (qb 10000 (log? :trace "foo")) ; ~6ms
+  (qb 10000 (tracef "foo"))      ; ~7.5ms
+  (qb 10000 (when false "foo"))  ; ~0.5ms
+  )
 
 (def ^:dynamic *context*
   "General-purpose dynamic logging context. Context will be merged into
@@ -330,7 +333,7 @@
 
 (defn log1-fn
   "Core fn-level logger. Implementation detail!"
-  [config level ?ns-str ?file ?line msg-type vargs_ & [?base-data]]
+  [config level ?ns-str ?file ?line msg-type vargs_ ?base-data]
   (when (log? level ?ns-str config)
     (let [instant (enc/now-dt)
           vargs*_ (delay (vsplit-err1 (force vargs_)))

src/taoensso/timbre/appenders/example_appender.clj

@@ -1,7 +1,8 @@
 (ns taoensso.timbre.appenders.example-appender
-  "An example of how Timbre appenders should be written.
-  Please mention any requirements/dependencies in this docstring."
-  {:author "Peter Taoussanis"} ; <- Your name here
+  "An example of how Timbre library-style appenders should be written for
+  bundling with Timbre. Please mention any requirements/dependencies in this
+  docstring, thanks!"
+  {:author "Your name here"}
   (:require [clojure.string  :as str]
             [taoensso.timbre :as timbre]
             [taoensso.encore :as encore]))
@@ -45,8 +46,8 @@
             ;; provided for you under the :output-fn key. Prefer using this fn
             ;; to your own formatter when possible, since the user can
             ;; configure the :output-fn formatter in a standard way that'll
-            ;; influence all participating appenders. It may help to look at
-            ;; the source code for `taoensso.timbre/default-output-fn`!
+            ;; influence all participating appenders. Take a look at the
+            ;; `taoensso.timbre/default-output-fn` source for details.
             ;;
             any-special-output-fn-opts {} ; Output-fn can use these opts
             output-string (output-fn data any-special-output-fn-opts)]