Hello Amper (now Kotlin-toolchain?) team! I have t...

# kotlin-toolchain

[Aleksey Tomin]

Hello Amper (now Kotlin-toolchain?) team!
I have to have application jar file with dependencies in child directory.
How can I do the same in apmere (kotlin-toolchain)?
Now in my `build.gradle.kts`:

val copyDependencies by tasks.registering(Copy::class) {
    from(configurations.runtimeClasspath)
    into(layout.buildDirectory.dir("libs/lib"))
    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
}

tasks.build {
    dependsOn(copyDependencies)
}

tasks.jar {
    archiveFileName.set("myApp.jar")
    manifest.attributes["Main-Class"] = "MainClassKt"
    manifest.attributes["Class-Path"] = configurations.runtimeClasspath.get().files.joinToString(" ") { "lib/${it.name}" }
}

[Anton Prokhorov]

Hi, thanks for reaching out
Is package layout a hard requirement? If no, we provide building the executable package for jvm just out of box

Try kotlin package

[Aleksey Tomin]

Thank You! It works but...

My app.jar has size less than 1Mb
app-ampere-jvm-executable.jar - 31Mb
When I have to update app on server I want to send only 1Mb.

PS: In our production applications we have ~10Mb our code and more then 300Mb libraries (spark, aws etc). Our devops want to have different docker layer for application and libraries

[Anton Prokhorov]

Ah, I see, I didn't get you at first

[Anton Prokhorov]

I'll reply later on in 15 minutes after I come to the office (or someone from the team will take over :) )

[Anton Prokhorov]

we don't support that out of box (maybe we should, it's kind of classic distribution format)

what you can do now is to implement a tiny extension, which would collect and put jars in the layout you'd like to preserve

the example you can find in our repo

[Aleksey Tomin]

I've done MVP for this.
Will this code help you implement this in Kotlin Toolchain?

[Anton Prokhorov]

I would encourage you to share no matter whether we use it or not for the implementation

I personally would find it useful, there are a lot of signals we can extract from your implementation, so please share if you can and if
It's not hard :)

[Aleksey Tomin]

https://codeshare.io/2pL9RV

tasks:
  collectLibs:
    action: !collectLibs
      outputDir: ${taskOutputDir}
      baseClasspath: ${module.runtimeClasspath}
      rootDir: ${module.jar}

[Aleksey Tomin]

But it works properly only for single-module app.
In multi-module app we have to copy all our jar files outside the lib folder