Now removed the reliance on any private sun or Unix-specific class by applying a trick: https://github.com/borkdude/babashka/blob/2b0cb6fb1cf2f86a9bdf22dd6b954a35ec1be21f/src/babashka/impl/classes.clj#L178 Reflection happens on the public class and that seems to work

So that should also work for JDK11

Curious about this line in the rationale of deps.clj: > This offers an arguably easier way to get going with deps.edn based projects in CI. Just download an installer script, execute it with bash or Powershell and you’re set. Installer scripts are provided for linux, macOS and Windows. Isn’t that essentially the same installation process as tools.deps?

First successful linux build of babashka on JDK11. Binary for the grabbing in #babashka_circleci_builds !

Is there a way to retrieve the path from the code of the current file that is being executed? E.g. in bb src/path/foo.bb I would like to get the value src/path/foo.bb somehow

Is this on purpose?

user=> (.getName *ns*)
Method getName on class sci.impl.vars.SciNamespace not allowed! [at line , column ]

This gives me what I want as well (str *ns*)

try *file*

@jeroenvandijk You can use *file* for that

and the second example: (ns-name *ns*)

(oh sorry, slack was lagging, I see Nate answered it already)

Cool, thanks!

In case you are interested, I'm trying to build a script in babashka that can delegate to clojure when needed:

(defn handle-in-clj [msg cli-args]
  (println msg)
  ;; TODO stream output with ProcessBuilder instead
  #_(def ws (-> (ProcessBuilder. (into ["clj"] args)) (.start)))

  (let [cmd (into ["clj" *file*] (map str) cli-args)
        ; _ (prn "CMD" cmd)
        p (apply clojure.java.shell/sh cmd)]
    (exit (:exit p)
          (if (zero? (:exit p))
            (:out p)
            (if (clojure.string/blank? (:err p))
              (:out p)
              (:err p))))))

(defmacro delegate-to-clj [& body]
  #?(:bb `(handle-in-clj "Delegating to clj" *args*)
     :clj `(do
             [email protected])))

For simple scripts you have the benefit of minimal boot time. For things that require clojure you can already do some input validation before starting the heavy process and saving you time in case of errors. All without having to think about it 😎

That's the idea anyway :)

@jeroenvandijk Take a look at the deps.clj script, it shows how to stream out and err

spartan.test, a test lib that can be used with bb, now has testing, thrown? and thrown-with-msg?: https://github.com/borkdude/spartan.test

Some progress made on adding clojure.data.xml. Feel free to read+test: https://github.com/borkdude/babashka/issues/153

Seems it also works with 11.0.5:

[email protected]:/tmp$ ./bb
Babashka v0.0.61-SNAPSHOT REPL.
user=> (require '[clojure.data.xml :as xml])
nil
user=> (let [xml (xml/parse-str "<items><item>1</item><item>2</item></items>")] (xml/emit-str xml))
"<?xml version=\"1.0\" encoding=\"UTF-8\"?><items><item>1</item><item>2</item></items>"
user=> (System/getProperty "java.version")
"11.0.5"

I'm always a bit wary of making choices of what should go into babashka. E.g. should I have added clojure.data.json instead of cheshire.core since I already have the other clojure.* stuff? Should I remove core.async because nobody is using it? What will happen to the binary size in the long run?

yep, but you can already do that with pmap? 🙂

Maybe I should do a yearly survey 😉

I'm not sure how much binary size matters to people. Does only the download size matter, or also the extracted size? What's still acceptable?

For me too.

Startup time doesn't seem to be affected by the number of libs I add to it

Maybe I should put together a questionnaire.

Anyway. Adding clojure.data.xml seems like a good idea, but I'd like to hear if it's not 🙂

and also probably hiccup for html

generating html at least

We already have https://github.com/retrogradeorbit/bootleg

the only way to make that work currently is to let users enable the libraries via some UI and circleci will build it

could work

and if someone already has chosen the exact combination of libs before, you will just get the already compiled version immediately

cool idea for the future. I made an issue for it.

yeah, I don't think that's going to work. I think it has to be curated manually somehow

adding macros is a bit of a manual effort

there could be a branch where people could PR their new favorite library bindings and some config so this UI knows how to enable it

but if people really want their personal libs in bb, they might as well just fork it

and build it themselves on circle

yes, happy that worked out nicely

if we finally release an api for http://nextjournal.com notebooks we could build it there

our default environments now already ship with babashka, jet & friends

and graal 19.3 is our default JVM

w00t!

that would be awesome... you could just select the libs as a notebook

instead of a custom web ui

@mkvlr what memory / CPU / resource restrictions do you have in nextjournal for free / OSS use?

currently 15GB of RAM + 1 GPU is free but happy to bump that if you need more

wow, thats already lots more than circleci.

we also have a lot less users 😼

I'll make a note of this in the issue

I’ll see if I can come up with a proof of concept

https://github.com/borkdude/babashka/issues/228

so how do I build babashka with custom libs?

@mkvlr in babashka.main.clj there is a map which determines which namespaces are included. dissoc-ing that map would already have an effect of which libs are left out

I think graalvm is clever enough to see that it should leave out the libs from the compiled artifact if you dissoc them

but in the end I would do this via some edn config file probably that is read at build time

to construct that map

ok, so we want to allow to pass in the whole map via edn or how do you envision the api?

Not sure yet.

Maybe just getting the build running in the notebook is a good first step?

right

https://nextjournal.com/a/M4woRraF1pz1zjvjgBY9T?token=Td2LLVyNFmR6rXMEJ7bKZ6

Syntax error (ClassNotFoundException) compiling at (babashka/impl/classes.clj:188:16).
java.lang.UNIXProcess$ProcessPipeOutputStream

hmm, that might not be the most recent master

also you need jdk8

no, I checkout out the latest release

ah ok

there is no mention anymore of UnixProcess classes, removed that today, so I can't explain that error. Can you show the git sha?

changed it to master now

but it’s still JDK 11

Execution error (FileNotFoundException) at babashka.impl.clojure.core.server/loading (server.clj:12).
Could not locate sci/core__init.class, sci/core.clj or sci/core.cljc on classpath.

ah you need to check out recursively. https://github.com/borkdude/babashka/blob/master/doc/dev.md

also, there is a circleci config that shows how / where to download graalvm etc

I'm afk now, happy to continue tomorrow

👋

same, have a good night!

cool, it compiles now with JDK 11

almost, but it got further…