Is there a way to get a REPL for a build with target :esm and runtime :node? The build configuration:

{:target           :esm
   :js-options       {:js-provider :import}
   :runtime          :node
   :output-dir       "out/esm"
   :modules
   {:script {:entries [my.script.core]
             :exports {init my.script.core/init}}}}

var socket = (new shadow.esm.esm_import$ws(ws_url,({"rejectUnauthorized": false})));
              ^

TypeError: shadow.esm.esm_import$ws is not a constructor
    at shadow$cljs$devtools$client$node$start (file:///.../out/esm/cljs-runtime/shadow.cljs.devtools.client.node.js:122:15)
    at Object.attempt_connect_BANG_ (file:///.../out/esm/cljs-runtime/shadow.cljs.devtools.client.shared.js:482:128)
    at Object.shadow$cljs$devtools$client$shared$init_runtime_BANG_ [as init_runtime_BANG_] (file:///.../out/esm/cljs-runtime/shadow.cljs.devtools.client.shared.js:970:16)
    at file:///.../out/esm/cljs-runtime/shadow.cljs.devtools.client.node.js:431:36

I also tried to use node-script as a target but that doesn't seem to be an option with some npm packages that are ESM only (e.g., the latest version of chalk).

@davidst I didn't try to get the node repl running with :esm yet. you can try setting :runtime :custom :devtools {:client-ns some.ns} where some.ns is just a copy of https://github.com/thheller/shadow-cljs/blob/master/src/main/shadow/cljs/devtools/client/node.cljs with the ["ws" :as ws] changed to ["ws$default" :as ws]. maybe thats enough?

I suspect there might be more changes necessary though

Thank you. Following your suggestion I was able to connect to the repl. Unfortunately, when evaluating anything, I was getting errors about undefined SHADOW_IMPORTED and SHADOW_IMPORT. It looks like these are defined in node_bootstrap.txt for node targets. It seems shadow/boot/esm.js is supposed to replace (some of) that. I have tried to fix these errors. It seems to work alright so far but it is clearly a nasty hack:

;; these implementations replace the first three functions in shadow.cljs.devtools.client.node

(defn node-eval [{:keys [js source-map-json] :as msg}]
  (let [result (js* "(0,eval)(~{});" js)]
    result))

(defn is-loaded? [src]
  (true? (js/SHADOW_ENV.setLoaded src)))

(defn closure-import [src]
  {:pre [(string? src)]}
  (js/console.log src)
  (when-not (= src "goog.base.js")
    ;; goog base doesn't work with this kind of import?
    (js/globalThis.shadow_esm_import (str "./cljs-runtime/" src)))
  (js/SHADOW_ENV.setLoaded src))

;; this interface implementation replaces the current one for the type cljs-shared/Runtime
api/IEvalJS
(-js-eval [this code]
  (js* "(0,eval)(~{});" code))

The hack to prepend "./cljs-runtime" to src seems especially fragile. Is there a better way to do that?

Complete newbie using the default shadow-cljs setup in luminus. App loads fine but test throws a fit. Is this a 'need to be using :broswer-test instead of :node-test' type issue? I'm struggling to figure out where to even look to troubleshoot what wrong beyond an import expects the browser 'window' object to exist. Its one test file for a re-frame subscription if that helps at all

ReferenceError: window is not defined
    at [path]/.shadow-cljs/builds/test/dev/out/cljs-runtime/accountant/core.cljs:21:35
    at [path]/.shadow-cljs/builds/test/dev/out/cljs-runtime/accountant.core.js:16:3
    at global.SHADOW_IMPORT ([path]/target/test/test.js:64:44)
    at [path]/target/test/test.js:1701:1
    at Object.<anonymous> ([path]/target/test/test.js:1781:3)
    at Module._compile (node:internal/modules/cjs/loader:1097:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1149:10)
    at Module.load (node:internal/modules/cjs/loader:975:32)
    at Function.Module._load (node:internal/modules/cjs/loader:822:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
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