bb --version could run without a JVM

[ieugen]

This surprised me.
I did not expect bb to require JVM.

version
1.3.183

platform

Was Windows but might be the same on others.

problem

bb fails to run without a JVM and throws exception.
if there is a bb.edn with deps .

No bb command works I believe.

This was discussed https://clojurians.slack.com/archives/CLX41ASCS/p1712827785933789

repro

# create a container
 docker run -ti debian bash 
# install curl
apt update && apt install -y curl vim 

# install bb via install scritp

# create a bb.edn file with
cat bb.edn
{:min-bb-version "1.0.0"
 :paths ["script"]
 :deps {amperity/vault-clj {:mvn/version "1.1.3"}
        io.github.ieugen/compoje {:git/sha "4fad03af73ac80ec6a25794c410f3a4abef46311"}}
}

# run bb
root@e0c7668bed59:/# bb
Exception in thread "main" java.lang.Exception: Couldn't find 'java'. Please set JAVA_HOME.
	at borkdude.deps$get_java_cmd.invokeStatic(deps.clj:281)
	at borkdude.deps$_main.invokeStatic(deps.clj:902)
	at borkdude.deps$_main.doInvoke(deps.clj:882)
	at clojure.lang.RestFn.applyTo(RestFn.java:137)
	at clojure.core$apply.invokeStatic(core.clj:667)
	at babashka.impl.deps$add_deps$fn__27345$fn__27346.invoke(deps.clj:113)
	at clojure.lang.AFn.applyToHelper(AFn.java:152)
	at clojure.lang.AFn.applyTo(AFn.java:144)
	at clojure.core$apply.invokeStatic(core.clj:667)
	at clojure.core$with_bindings_STAR_.invokeStatic(core.clj:1990)
	at clojure.core$with_bindings_STAR_.doInvoke(core.clj:1990)
	at clojure.lang.RestFn.invoke(RestFn.java:425)
	at babashka.impl.deps$add_deps$fn__27345.invoke(deps.clj:113)
	at babashka.impl.deps$add_deps.invokeStatic(deps.clj:113)
	at babashka.main$exec$fn__32212.invoke(main.clj:872)
	at clojure.lang.AFn.applyToHelper(AFn.java:152)
	at clojure.lang.AFn.applyTo(AFn.java:144)
	at clojure.core$apply.invokeStatic(core.clj:667)
	at clojure.core$with_bindings_STAR_.invokeStatic(core.clj:1990)
	at clojure.core$with_bindings_STAR_.doInvoke(core.clj:1990)
	at clojure.lang.RestFn.invoke(RestFn.java:425)
	at babashka.main$exec.invokeStatic(main.clj:824)
	at babashka.main$main.invokeStatic(main.clj:1201)
	at babashka.main$main.doInvoke(main.clj:1148)
	at clojure.lang.RestFn.invoke(RestFn.java:397)
	at clojure.lang.AFn.applyToHelper(AFn.java:152)
	at clojure.lang.RestFn.applyTo(RestFn.java:132)
	at clojure.core$apply.invokeStatic(core.clj:667)
	at babashka.main$_main$f__32337__auto____32347.invoke(main.clj:1240)
	at clojure.lang.AFn.run(AFn.java:22)
	at [email protected]/java.lang.Thread.runWith(Thread.java:1596)
	at [email protected]/java.lang.Thread.run(Thread.java:1583)
	at org.graalvm.nativeimage.builder/com.oracle.svm.core.thread.PlatformThreads.threadStartRoutine(PlatformThreads.java:833)
	at org.graalvm.nativeimage.builder/com.oracle.svm.core.posix.thread.PosixPlatformThreads.pthreadStartRoutine(PosixPlatformThreads.java:211)
Exception in thread "main" java.lang.NullPointerException
	at clojure.lang.RT.intCast(RT.java:1221)
	at babashka.main$_main.invokeStatic(main.clj:1240)
	at babashka.main$_main.doInvoke(main.clj:1226)
	at clojure.lang.RestFn.invoke(RestFn.java:397)
	at clojure.lang.AFn.applyToHelper(AFn.java:152)
	at clojure.lang.RestFn.applyTo(RestFn.java:132)
	at babashka.main.main(Unknown Source)
	at [email protected]/java.lang.invoke.LambdaForm$DMH/sa346b79c.invokeStaticInit(LambdaForm$DMH)

expected behavior

• bb should run ?!
• bb should display a friendlier error
• bb should not depend on JVM :D

I don't think any bb command works.

[borkdude]

bb --version could run without a JVM, but anything that requires the dependencies to be in place will still require it. Will fix --version to run without a JVM and will check if there are more commands that could run without a JVM