core.clj

(ns project.core
  (:gen-class)
  (:require [immutant.web :as immutant]
            [immutant.web.middleware :as imw]
            [environ.core :refer [env]]
            [clojure.tools.nrepl.server :as nrepl]
            [taoensso.timbre :as timbre]
            [utils.helpers :refer :all :include-macros true]
            [project.handler :as handler]
            ))

(defn- nrepl-opts
  []
  (if-require '[cider.nrepl]
              (assoc {} :handler cider.nrepl/cider-nrepl-handler)))

explosion.log

$lein run
Exception in thread "main" java.lang.ClassNotFoundException: cider.nrepl, compiling:(project/core.clj:24:15)
	at clojure.lang.Compiler.analyze(Compiler.java:6543)
	at clojure.lang.Compiler.analyze(Compiler.java:6485)
	at clojure.lang.Compiler$InvokeExpr.parse(Compiler.java:3791)i
	at clojure.lang.Compiler.analyzeSeq(Compiler.java:6725)
	at clojure.lang.Compiler.analyze(Compiler.java:6524)
	at clojure.lang.Compiler.analyze(Compiler.java:6485)
	at clojure.lang.Compiler$BodyExpr$Parser.parse(Compiler.java:5861)
	at clojure.lang.Compiler.analyzeSeq(Compiler.java:6723)
	at clojure.lang.Compiler.analyze(Compiler.java:6524)
	at clojure.lang.Compiler.analyze(Compiler.java:6485)
	at clojure.lang.Compiler$IfExpr$Parser.parse(Compiler.java:2777)
	at clojure.lang.Compiler.analyzeSeq(Compiler.java:6723)
	at clojure.lang.Compiler.analyze(Compiler.java:6524)
	at clojure.lang.Compiler.analyze(Compiler.java:6485)
	at clojure.lang.Compiler$BodyExpr$Parser.parse(Compiler.java:5861)
	at clojure.lang.Compiler$LetExpr$Parser.parse(Compiler.java:6179)
	at clojure.lang.Compiler.analyzeSeq(Compiler.java:6723)
	at clojure.lang.Compiler.analyze(Compiler.java:6524)
	at clojure.lang.Compiler.analyzeSeq(Compiler.java:6711)
	at clojure.lang.Compiler.analyze(Compiler.java:6524)
	at clojure.lang.Compiler.analyze(Compiler.java:6485)
	at clojure.lang.Compiler$BodyExpr$Parser.parse(Compiler.java:5861)
	at clojure.lang.Compiler.analyzeSeq(Compiler.java:6723)
	at clojure.lang.Compiler.analyze(Compiler.java:6524)
	at clojure.lang.Compiler.analyzeSeq(Compiler.java:6711)
	at clojure.lang.Compiler.analyze(Compiler.java:6524)
	at clojure.lang.Compiler.analyze(Compiler.java:6485)
	at clojure.lang.Compiler$BodyExpr$Parser.parse(Compiler.java:5861)
	at clojure.lang.Compiler$FnMethod.parse(Compiler.java:5296)
	at clojure.lang.Compiler$FnExpr.parse(Compiler.java:3925)
	at clojure.lang.Compiler.analyzeSeq(Compiler.java:6721)
	at clojure.lang.Compiler.analyze(Compiler.java:6524)
	at clojure.lang.Compiler.analyzeSeq(Compiler.java:6711)
	at clojure.lang.Compiler.analyze(Compiler.java:6524)
	at clojure.lang.Compiler.access$300(Compiler.java:38)
	at clojure.lang.Compiler$DefExpr$Parser.parse(Compiler.java:577)
	at clojure.lang.Compiler.analyzeSeq(Compiler.java:6723)
	at clojure.lang.Compiler.analyze(Compiler.java:6524)
	at clojure.lang.Compiler.analyze(Compiler.java:6485)
	at clojure.lang.Compiler.eval(Compiler.java:6786)
	at clojure.lang.Compiler.load(Compiler.java:7227)
	at clojure.lang.RT.loadResourceScript(RT.java:371)
	at clojure.lang.RT.loadResourceScript(RT.java:362)
	at clojure.lang.RT.load(RT.java:446)
	at clojure.lang.RT.load(RT.java:412)
	at clojure.core$load$fn__5448.invoke(core.clj:5866)
	at clojure.core$load.doInvoke(core.clj:5865)
	at clojure.lang.RestFn.invoke(RestFn.java:408)
	at clojure.core$load_one.invoke(core.clj:5671)
	at clojure.core$load_lib$fn__5397.invoke(core.clj:5711)
	at clojure.core$load_lib.doInvoke(core.clj:5710)
	at clojure.lang.RestFn.applyTo(RestFn.java:142)
	at clojure.core$apply.invoke(core.clj:632)
	at clojure.core$load_libs.doInvoke(core.clj:5749)
	at clojure.lang.RestFn.applyTo(RestFn.java:137)
	at clojure.core$apply.invoke(core.clj:632)
	at clojure.core$require.doInvoke(core.clj:5832)
	at clojure.lang.RestFn.invoke(RestFn.java:408)
	at user$eval1914$fn__1916.invoke(form-init664518293183453820.clj:1)
	at user$eval1914.invoke(form-init664518293183453820.clj:1)
	at clojure.lang.Compiler.eval(Compiler.java:6782)
	at clojure.lang.Compiler.eval(Compiler.java:6772)
	at clojure.lang.Compiler.load(Compiler.java:7227)
	at clojure.lang.Compiler.loadFile(Compiler.java:7165)
	at clojure.main$load_script.invoke(main.clj:275)
	at clojure.main$init_opt.invoke(main.clj:280)
	at clojure.main$initialize.invoke(main.clj:308)
	at clojure.main$null_opt.invoke(main.clj:343)
	at clojure.main$main.doInvoke(main.clj:421)
	at clojure.lang.RestFn.invoke(RestFn.java:421)
	at clojure.lang.Var.invoke(Var.java:383)
	at clojure.lang.AFn.applyToHelper(AFn.java:156)
	at clojure.lang.Var.applyTo(Var.java:700)
	at clojure.main.main(main.java:37)
Caused by: java.lang.ClassNotFoundException: cider.nrepl
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at clojure.lang.DynamicClassLoader.findClass(DynamicClassLoader.java:69)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at clojure.lang.DynamicClassLoader.loadClass(DynamicClassLoader.java:77)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:348)
	at clojure.lang.RT.classForName(RT.java:2154)
	at clojure.lang.RT.classForName(RT.java:2163)
	at clojure.lang.Compiler$HostExpr.maybeClass(Compiler.java:1017)
	at clojure.lang.Compiler$HostExpr.access$600(Compiler.java:795)
	at clojure.lang.Compiler.analyzeSymbol(Compiler.java:6911)
	at clojure.lang.Compiler.analyze(Compiler.java:6506)
	... 73 more

utils.helpers.cl

(defmacro if-require
  "Requires the specified libspec executing the 'then' form
  if successful. Otherwise, the 'else?' form if supplied."
  [ns then & else? ]
  `(do
     (let [ns# ~ns]
       (try
         (require ns#)
         (catch Throwable ~'e nil))
       (if
         (find-ns (cond (symbol? ns#) ns# (vector? ns#) (first ns#)))
         (do ~then)
         (do ~@else?)))))