Standard input with lumo / node / ClojureScript

script.cljs

#!/usr/bin/env lumo

(defn greeting! [name]
  (println (str "Hello " name "!")))

(def stdinput (atom ""))
(js/require "process")

(.setEncoding js/process.stdin "utf8")
(.on js/process.stdin "data"
     (fn [data]
       (swap! stdinput #(str % data))))

(.on js/process.stdin "end"
     (fn []
       (swap! stdinput (fn [s]
                         (subs s 0 (dec (count s)))))
       (greeting! @stdinput)))

;; echo foo | ./script.cljs -> "Hello foo!"