Fixes issue #555

This modifies the file-filter function so that if the criteria seq is empty, it throws an error.
boot-clj · Jun 16, 2017 · de783e4 · de783e4
1 parent 743eb05
commit de783e4
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/boot/core/src/boot/core.clj b/boot/core/src/boot/core.clj
@@ -1218,6 +1218,7 @@
   "A file filtering function factory. FIXME: more documenting here."
   [mkpred]
   (fn [criteria files & [negate?]]
+    (assert (seq criteria) "file-filet (called from by-*) requires a list of matching paths, if you want all files use boot.core/ls")
     (let [tmp?   (partial satisfies? tmpd/ITmpFile)
           ->file #(if (tmp? %) (io/file (tmp-path %)) (io/file %))
           pred (apply juxt (mapv mkpred criteria))]