Clojurians Log v2

hey folks, how are you running your shadow-cljs project tests locally? are you using command line or the repl or maybe both?

Hey all. I'm looking at clojurescript for a project target Duktape, an embedded, es5 compliant javascript engine

is it possible to get the clojurescript compiler to output a single file, ready to roll with all dependencies bundled?

(when I try to target node, the output file tries to require a bunch of stuff. When I try to target browser, the output file tries to fetch a bunch of stuff)

It seems there is no clear policy as which optimizations bundle everything in a single file - I would have thought both :simple and :advanced, but only :advanced seems to do that. Is there an established answer? http://Clojurescript.org and Goog.closure sites don’t mention it. I am trying for a single-file bundle with :simple - is this possible? Thx

Also, it seems dependencies in :none optimization are fetched relative to :output-dir. Is this correct? Thx..

I am reading a tutorial here https://github.com/Rovanion/webgl-clojurescript-tutorial/blame/master/README.md#L237 and there is this line (catch js/Error e (recur (next ids))))))] that throws when I try to compile it with Can't recur here

I am not sure what is happening, is this code that was working before but not anymore? Or what could be the problem?

Is there a compiler setting which writes the goog initialization and deps within a <script> tag, instead of in-line (`document.write(…`)?

Are you creating a dev build? Because a release build should produce a single file with everything bundled together.

At least, for browsers. No idea about node.

How would your compiler change your HTML? Or maybe I misunderstand the question.

I've tried browser, webworker, and node

with whitespace, simple, and advanced optimizations

so far, no dice

What is shadow-cljs? They seem to support targeting react-native: https://shadow-cljs.github.io/docs/UsersGuide.html#target-react-native

Interesting. It's not allowed in Clojure either. I don't know for sure but I think you're right about this working on some older CLJS. Either way, the fix it rather trivial - just wrap try-catch in a let and recur from the let's body.

(which means running in JavaScriptCore, which is an embedded engine)

I use shadow-cljs for browser. When I run production build, only a single file is produced.

Also from the documentation: "The :target :node-script produces single-file stand-alone output that can be run using node.js"

Right, but there's something about the compiled output that fails inside duktape 😕

Have you tried setting :output-feature-set to :es5?

Although I think that's the default...

ah, how do I do that?

(all I have is a deps.edn file)

Thanks @p-himik ..You understood correctly - maybe there is a way to output the fragment to a file? Or to disable it? Way back there used to be an introductory cljs tutorial where this was done manually..

(and a hello-world file)

If you're using shadow-cljs, you should also have a shadow-cljs.edn file. https://shadow-cljs.github.io/docs/UsersGuide.html#_output_language_options

The only thing that I've seen where something was done manually is the addition of a single <script src="..."> line that makes the browser fetch the main JS bundle and maybe another <script> line that executes the entry function. In any case - what is the problem that you're trying to solve?

I am writing a browser extension, and would have to muck with security policy (CSP) to make that possible. No inline JS is allowed by default

I'm using shadow-cljs. A release build produces a single file that you can add with <script src="...">. It doesn't try to load any other files.

is it doable just with the deps.edn file and the clj CLI?

Ok…will see if I can use that - thanks!

I don't know for sure. You'll have to peruse the documentation or ask in #shadow-cljs

If that doesn't help, you can always ask in #shadow-cljs

Hi all! I've came across a problem with CLJS compilation recently, where my code behaves differently if I compile it with different optimizations options (advanced and simple). I made this small example showing it (https://github.com/felipegmarques/example-cljs-optimizations-affecting-code-behavior). Does anyone have a similar problem?

how do i make it so changes to deps.edn trigger a rebuild?

for example adding a dependency?