Shadow-cljs cljs deps.edn hook

shadow-build.clj

(ns user.shadow-build
  (:require [cheshire.core :as json]
            [clojure.java.io :as io]))

(def ^:private package-json-path "package.json")
(def ^:private deps-edn-path "src/deps.cljs")

(defn deps-cljs
  [package-json-edn]
  {:npm-deps (get package-json-edn "dependencies" {})})

(defn flush-hook
  {:shadow.build/stage :flush}
  [build-state & args]
  (println "[:flush-hook] Update deps.cljs from package.json:")
  (let [deps-cljs-content (deps-cljs (json/decode (slurp "package.json")))]
    (println "[:flush-hook]" deps-cljs-content)
    (spit deps-edn-path deps-cljs-content))
  build-state)