Datomic as source control?

More like unison: https://www.unisonweb.org

Ok, so I did some practiacl testing and it seems data will not be computed several times when there is a computation pending.

It works perfectly fine on 8, but as soon as I switch to 11, I get segfaults

Tried AdoptOpenJDK 15, also segfaults

… bit vague, I know, I was kinda hoping that it rings a bell with someone :)

It appears to segfault in libjfxwebkit?

You may want to examine the error file and loook for s corresponding jdk bug

Yeah looking at logs, it is trying to find libraries in the maven repository > WARNING: java.lang.UnsatisfiedLinkError: Can’t load library: ~/.m2/repository/org/openjfx/javafx-graphics/11.0.2/libjfxwebkit.dylib > > Loaded library /libjfxwebkit.dylib from resource

In Oracle Java 8, JavaFX is built in. In later Java’s, you need openjavafx as an additional set of libraries

You can see the set of required deps at https://docs.datomic.com/cloud/other-tools/REBL.html

Are you using those deps?

I’m using them in my lein profile:

{:tools {:plugins [[lein-ancient "0.6.15"]
                   [lein-localrepo "0.5.4"]]}
 :rebl {:repl-options  {:nrepl-middleware [nrebl.middleware/wrap-nrebl]}
        :dependencies  [[rickmoynihan/nrebl.middleware "0.2.0"]
                        [com.cognitect/rebl "0.9.242"]
                        [org.openjfx/javafx-fxml "11.0.2"]
                        [org.openjfx/javafx-controls "11.0.2"]
                        [org.openjfx/javafx-swing "11.0.2"]
                        [org.openjfx/javafx-base "11.0.2"]
                        [org.openjfx/javafx-web "11.0.2"]
                        [cljfmt "0.6.4"]]
       :resource-paths ["*snip*/REBL-0.9.220/REBL-0.9.220.jar"]
       :injections     [(require 'nrebl.middleware) (require '[cognitect.rebl :as rebl])]
       :jvm-opts       ["-Djavafx.verbose=true"]}
 :user [:tools :rebl]}

But those are different versions

Yeah, let me try with that 15 version, followed a bit of a mixed set of advice

Even if you are on Java 11, you should use the newer javafx libs

And you shouldn’t need the cljfmt dep

You also seem to have one version of rebl in the deps and another in the resources?

Yeah, I set it straight like this:

{:tools {:plugins [[lein-ancient "0.6.15"]
                   [lein-localrepo "0.5.4"]]}
 :rebl {:repl-options  {:nrepl-middleware [nrebl.middleware/wrap-nrebl]}
        :dependencies  [[rickmoynihan/nrebl.middleware "0.2.0"]
                        [com.cognitect/rebl "0.9.242"]
                        [org.openjfx/javafx-fxml "15-ea+6"]
                        [org.openjfx/javafx-controls "15-ea+6"]
                        [org.openjfx/javafx-swing "15-ea+6"]
                        [org.openjfx/javafx-base "15-ea+6"]
                        [org.openjfx/javafx-web "15-ea+6"]]
       :injections     [(require 'nrebl.middleware) (require '[cognitect.rebl :as rebl])]
       :jvm-opts       ["-Djavafx.verbose=true"]}
 :user [:tools :rebl]}

Same problem tho, still get a segfault.

# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00000001047de1a4, pid=11576, tid=121871
#
# JRE version: OpenJDK Runtime Environment AdoptOpenJDK (11.0.8+10) (build 11.0.8+10)
# Java VM: OpenJDK 64-Bit Server VM AdoptOpenJDK (11.0.8+10, mixed mode, tiered, compressed oops, g1 gc, bsd-amd64)
# Problematic frame:
# V  [libjvm.dylib+0x3de1a4]  jni_CallStaticBooleanMethodV+0xdf

(Thanks btw!)

Those set faults were fixed in the openjfx 15 early access versions

Or one set were, maybe this is something new

I haven’t seen that before

It’s also crashing with the released openjfx 15 versions. (e.g. ["org.openjfx/javafx-… "15"]). So that openjfx option I enabled, gives me this warning:

WARNING: java.lang.UnsatisfiedLinkError: Can't load library: *snip*/.m2/repository/org/openjfx/javafx-graphics/15/libprism_es2.dylib
Loaded library /libprism_es2.dylib from resource

@UDF11HLKC Which macOS are you on? Since I switched to the 15-ea+6 OpenJFX, I've had no problems on macOS 10.12, running AdoptOpenJDKs 11, 14, or 15.

I have seen that warning on Ubuntu (on WSL2 on Windows 10) but it still loads and runs just fine (via Xlaunch).

I’m on Mojave 10.14

Is there anything specific that you do that results in the segfault, or is it random?

Starting rebl, guaranteed segfault: (rebl/ui)

(I'll note that I don't use lein or nREPL at all so that may be a factor in what you're seeing)

is there some reason you are using "15" and not "15-ea+6" as in the docs?

(I guess that was at Sean? I tried both with the same results)

I haven't actually tested rebl with the final 15 release

Oh, I interpreted “Those set faults were fixed in the openjfx 15 early access versions” as “try final” 🙂. My bad, but I’m still having the crashes with -ea+6

hey interesting, it works with a deps.edn

I've used a bunch of different java vendors, and jdk versions, and open javafx versions and have never seen the issue you're reporting

but I always use deps.edn, not lein so there may be some difference there, not sure what

Really appreciate all the help so far 🙂

I’m at least glad it works with a deps.edn, now its something lein related

At least easier finding ^^

For the internet travellers: For me, it doesn’t segfault when lein can find a project.clj, in folders that are not lein projects it does still, tho. Thats a situation that works for me, I think.

my two cents, it's mainly for places where you want to know if (count x) is greater than some value y

... and on something not ICounted 🙂

oh, it actually does that check

Thank you so much. Big babashka fan!

My tags are qualified so I needed to change the condition to (and (:tag elt) (= "version" (name (:tag elt))))

ah I see, where is that difference coming from?

I have xmlns=“” in the project tag.

Ah, that makes sense. Feel free to PR the update if you so wish

Sure will do. Thanks a lot! Spent way to much time on this today.

Updated it already

(def xml (xml/parse-str (slurp pom-xml) :namespace-aware false)) also works.

ah good one

instead of that construction with and you could use the extra arg to the keyword

(= "version" (name (:tag elt "")))

I made it into:

(if-let [t (:tag elt)]
    (if (= "version" (name t))
      (assoc elt :content version)
      elt)
    elt)

with :namespace-aware false we don’t need name in there.

I leave the tweaking to the end user. However, I'm interested in a fix for getting the XML declaration and the first tag to be pretty printed better.

I'm actually getting:

<?xml version="1.0" encoding="UTF-8"?><project>
    <version>1.0.2</version>
</project>

Yes I also get the <?xml and <project on the same line. But it’s not high prio for me.

:thumbsup:

you can also do a str/replace on that

On what sorry?

To get the XML declaration straightened

Yeah sure. But I’m not going to read it. 🙂

That's the spirit :)

🙂 Again thank you so much for making babashka. I never got around to learning bash. But I love Clojure!

Same here!

🙂

clearly I've been doing too much low-level programming lately

actually clj-kondo does return exit code 0, 2 or 3 with meaning attached to it

1 is reserved for unexpected errors

yeah, but that's quite different from using the last expression in -main as an OS level return value (and more useful of course)

@UGC0NEP4Y It is related. Babashka is a tool that runs Clojure code through an interpreter that is compiled with GraalVM.

fast for interactive use?

It has worse performance than JVM Clojure, but better startup (few milliseconds).

just tried. quite fast. the only thing annoying is, when downloading the binary from github, chrome prompts that this file is seldom downloaded and might not be safe. Also, when execute the binary for the first time, macos says its not signed might not be safe ….

You can also install it through brew

Also I understand that it's just an implementation detail of transducers but I can't for the life of me figure out what cases this covers.

Have you checked the uberjar to see if the class is in there?

the first thing I would test is java -jar the.jar - you need more than just the class existing, you need to either ask for the right class or have the right default entrypoint

replaced my uberjar with a minimal one, which works. so now I just have to figure out whats different. thanks for the input!