Ensure custom data readers are installed before running cloverage

If any custom `data_readers.clj` file is provided either in sources or through dependencies, currently `cloverage` ignores them and fails to read the sources. I discovered the issue while working with `honeysql` and its `#sql/call` literals. This change ensures that all data readers from either source code or through dependencies are properly communicated to `tools.reader` before unleashing `cloverage`.
skuro · Sep 18, 2019 · 8adb81c · 8adb81c
1 parent 589fa37
commit 8adb81c
Showing 1 changed file with 10 additions and 2 deletions.
diff --git a/lein-cloverage/src/leiningen/cloverage.clj b/lein-cloverage/src/leiningen/cloverage.clj
@@ -30,8 +30,16 @@
                               :test-ns-path (vec (:test-paths project)))]
     (try
       (eval/eval-in-project project
-                            ;; test-selectors needs unquoted here to be read as functions
-                            `(cloverage.coverage/run-project (assoc '~opts :test-selectors ~test-selectors) ~@args)
+                            `(let [decls#      (-> []
+                                                   (.getClass)
+                                                   (.getClassLoader)
+                                                   (.getResources "data_readers.clj")
+                                                   enumeration-seq)
+                                   read-decls# (comp read-string slurp)
+                                   readers#    (reduce merge {} (map read-decls# decls#))]
+                               (binding [clojure.tools.reader/*data-readers* readers#]
+                                 ;; test-selectors needs unquoted here to be read as functions
+                                 (cloverage.coverage/run-project (assoc '~opts :test-selectors ~test-selectors) ~@args)))
                             '(require 'cloverage.coverage))
       (catch ExceptionInfo e
         (main/exit (:exit-code (ex-data e) 1))))))