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(ns nicktodo.core
(:require
[nicktodo.handler :as handler]
[nicktodo.nrepl :as nrepl]
[luminus.http-server :as http]
[nicktodo.config :refer [env]]
[clojure.tools.cli :refer [parse-opts]]
[clojure.tools.logging :as log]
[mount.core :as mount])
(:gen-class))
;; log uncaught exceptions in threads
(Thread/setDefaultUncaughtExceptionHandler
(reify Thread$UncaughtExceptionHandler
(uncaughtException [_ thread ex]
(log/error {:what :uncaught-exception
:exception ex
:where (str "Uncaught exception on" (.getName thread))}))))
(def cli-options
[["-p" "--port PORT" "Port number"
:parse-fn #(Integer/parseInt %)]])
(mount/defstate ^{:on-reload :noop} http-server
:start
(http/start
(-> env
(update :io-threads #(or % (* 2 (.availableProcessors (Runtime/getRuntime)))))
(assoc :handler (handler/app))
(update :port #(or (-> env :options :port) %))
(select-keys [:handler :host :port])))
:stop
(http/stop http-server))
(mount/defstate ^{:on-reload :noop} repl-server
:start
(when (env :nrepl-port)
(nrepl/start {:bind (env :nrepl-bind)
:port (env :nrepl-port)}))
:stop
(when repl-server
(nrepl/stop repl-server)))
(defn stop-app []
(doseq [component (:stopped (mount/stop))]
(log/info component "stopped"))
(shutdown-agents))
(defn start-app [args]
(doseq [component (-> args
(parse-opts cli-options)
mount/start-with-args
:started)]
(log/info component "started"))
(.addShutdownHook (Runtime/getRuntime) (Thread. stop-app)))
(defn -main [& args]
(start-app args))
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