Leverage versioneer to remove the version info duplication

Author: bbatsov

project.clj

@@ -20,7 +20,9 @@
                  ^:source-dep [org.clojure/java.classpath "0.2.3"]
                  ^:source-dep [org.clojure/tools.namespace "0.3.0-alpha4"]
                  ^:source-dep [org.clojure/tools.trace "0.7.9"]
-                 ^:source-dep [org.clojure/tools.reader "1.1.3.1"]]
+                 ^:source-dep [org.clojure/tools.reader "1.1.3.1"]
+                 ;; used to extract the version info from the jar
+                 ^:source-dep [trptcolin/versioneer "0.2.0"]]
   :plugins [[thomasa/mranderson "0.4.8"]]
   :exclusions [org.clojure/clojure]
 

src/cider/nrepl/version.clj

@@ -1,11 +1,12 @@
 (ns cider.nrepl.version
   ;; We require print-method here because `cider.nrepl.version`
   ;; namespace is used by every connection.
-  (:require [cider.nrepl.print-method]))
+  (:require [cider.nrepl.print-method]
+            [trptcolin.versioneer.core :as v]))
 
 (def version
   "Current version of CIDER nREPL, map of :major, :minor, :incremental, and :qualifier."
-  (let [version-string "0.18.0-snapshot"]
+  (let [version-string (v/get-version "cider" "cider-nrepl" "1.0.0")]
     (assoc (->> version-string
                 (re-find #"(\d+)\.(\d+)\.(\d+)-?(.*)")
                 rest