whats wrong with just (the-function-you-want-to-call) in that ns?

there is no specific hook to call a function per ns

Not following about “what’s wrong with”.

you just put that at the end of the file or something

it'll get called when the namespace is reloaded, just by the nature of being there?

otherwise there is an undocumented feature that might do what you need

It would get called in situations when I don’t want it, I think? I do not usually have calls at the top level of the ns.

:devtools {:build-notify a.namespace/a-fn}

basically expecting a (defn a-fn [build-info] ...)

build-info here contains all the info that happening, and includes which namespaces were reloaded

its just data, should be pretty straightforward

Thanks. Should be what I need.

is ^:dev/after-load ns-specific or build-wide?

shadow calls all after-load functions from builds that are being watched, not just those that have been reloaded/recompiled.

This works great for me, btw:

#_{:clj-kondo/ignore [:clojure-lsp/unused-public-var]}
(defn build-notify!
  "Dev reload utility ..."
  [build-info]
  (when (= :build-complete (:type build-info))
    (when-let [compiled (-> build-info :info :compiled)]
      (when (compiled [:shadow.build.classpath/resource "a/b/c.cljs"])
        #_{:clj-kondo/ignore [:unresolved-namespace]}
        (x.y/do-things!)))))

oops, thx. fixed in master.