Does it possible to update :devtools option using build hook?

[maksimr]

I want to dynamically generate value for :devtools-url setting from shadow-cljs.edn. And trying to use hook instead of passing it as --config-merge option or global env variable, but looks like it doesn't work.

Thnx

The build hook code:

(ns script.build
  (:require
   [clojure.string :refer [trim]]
   [clojure.java.shell :as shell]))

(defn setup
  "Gitpod generate URL for open port so we should
   use this URL to properly forward connection from browser to the server"
  {:shadow.build/stage :configure}
  [build-state]
  (if (not-empty (System/getenv "GITPOD_WORKSPACE_URL"))
    (assoc-in build-state [:devtools :devtools-url]
              (trim (:out (shell/sh "gp" "url" "9630"))))
    build-state))

[thheller]

At the :configure stage the :devtools-url will already be applied to the place it is actually used. So updating the place where it came from will do nothing. Basically all this sets is this :closure-defines key/val pair.

shadow-cljs/src/main/shadow/build/targets/shared.clj

Lines 219 to 220 in c28859a

	'shadow.cljs.devtools.client.env/devtools-url
	(or devtools-url "")}

So in your build hook you can (assoc-in build-state [:compiler-options :closure-defines 'shadow.cljs.devtools.client.env/devtools-url] new-url).