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Fn to check for modified resource files
(def some-file-resources-modified?
"Returns true iff any of the files backing given resources have changed
since this function was last called."
(let [times (atom {})]
(fn modified?
([resource-name & more] (some modified? (cons resource-name more)))
(when-let [^File file (try (->> resource-name io/resource io/file)
(catch Exception _ nil))]
(let [last-modified (.lastModified file)]
(let [file-name (str file)
modified? (> last-modified (@times file-name 0))]
(when modified? (swap! times assoc file-name last-modified))
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