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Make callsite-id in log! macro deterministic for Clojure #354

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Make callsite-id in log! macro deterministic for Clojure #354

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10 changes: 9 additions & 1 deletion src/taoensso/timbre.cljc
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Original file line number Diff line number Diff line change
Expand Up @@ -691,6 +691,14 @@

(defn- fline [and-form] (:line (meta and-form)))


#?(:clj
(let [rand ^java.util.Random (java.util.Random. 715873)]
(defn deterministic-rand []
(.nextDouble rand)))
:cljs
(def deterministic-rand rand))

(defmacro log! ; Public wrapper around `-log!`
"Core low-level log macro. Useful for tooling/library authors, etc.

Expand Down Expand Up @@ -726,7 +734,7 @@
;; `slf4j-timbre`, etc.):
callsite-id
(hash [level msg-type args ; Unevaluated args (arg forms)
?ns-str ?file ?line (rand)])
?ns-str ?file ?line (deterministic-rand)])

vargs-form
(if (symbol? args)
Expand Down