Add hook to run cljx before lein jar.

.gitignore

@@ -1,3 +1,5 @@
 lib/
 .lein*
 test/generated
+pom.xml
+target/

README.markdown

@@ -27,6 +27,14 @@ To use it, add it to your `project.clj`:
                  :rules cljx.rules/cljs-rules}]}
 ```
 
+Add
+
+```clojure
+:hooks [cljx.hooks]
+```
+
+to automatically run cljx before cutting a JAR.
+
 The included clj and cljs rule sets will remove forms marked with platform-specific metadata and rename protocols as appropriate.
 E.g., the `.cljx` source containing
 
@@ -89,10 +97,3 @@ Misc
 ----
 Emacs users, want syntax highlighting?
 Add to your emacs config: `(add-to-list 'auto-mode-alist '("\\.cljx\\'" . clojure-mode))`.
-
-
-
-Todo
-----
-
-+ Hook into cljsbuild + jar processes

src/cljx/hooks.clj

@@ -0,0 +1,11 @@
+(ns cljx.hooks
+  (:require leiningen.cljx
+            [robert.hooke :as hooke]
+            [leiningen.jar :as ljar]))
+
+(defn- jar-hook [task project]
+  (leiningen.cljx/cljx project)
+  (task project))
+
+(defn activate []
+  (hooke/add-hook #'ljar/jar #'jar-hook))

src/leiningen/cljx.clj

@@ -10,7 +10,7 @@
 
 (defn cljx
   "Statically transform .cljx files into Clojure and ClojureScript sources."
-  [project & args]
+  [project]
 
   (if-let [opts (:cljx project)]
     (if-let [{builds :builds} opts]