there are some required java classes, so you need to run lein javac in the shadow-cljs project first

depending on what you want to do there may be extra steps necessary

Ah, easy enough 🙂 That works for what I was trying to do, which was really just to poke around inside shadow-cljs to get a sense of how it works.

happy to answer questions if you have anything in mind

Cheers, thanks Thomas 🙂

define fail?

raise an error

yes, but define what that means

i.e. what effect would that have as opposed to just finishing the build

I want to write some script, that reads the code and based on some rules i want to failure the build (some internal logic)

the effect is mostly that there is a script that runs in a ci and i don’t want the build to finish in case something happens (will force the developer to fix)

that is still and extremely vague description of the error condition. what does "reads the code" mean?

I mean build hooks can throw an exception and that will fail the build

i’ll try to simplify the use case, let’s say i want to force that every “def” starts with a capital letter, in case there is one def that doesn’t start with a capital letter i want to fail the build (the real use case is more complex ofc..)

sure that could be a build hook

can you help me with the api? (for failing the build) couldn’t find it

(throw (ex-info "your message" {}))

in a build hook

(defn hook
  {:shadow.build/stage :compile-finish}
  [build-state]
  (throw (ex-info "I always fail!" {})))

:build-hooks [(that.ns/hook)]

Great, I'll try, thanks! 🙏

hooks must be .clj right? (and not .cljs)

yes