kotlinlang #scripting

Is possible to retrieve path to the directory where script is located? (I am talking about actual directory on disk, not working cmd directory that can be retrieved by

System.getProperty("user.dir")

)

Slackbot

04/17/2020, 12:36 PM

This message was deleted.

keturn

04/23/2020, 7:04 PM

I'm giving scripting a try and am not yet clear on the different modes there seem to be. The things IDEA has "new file" interfaces for are "Script" and "Worksheet" (

.ws.kts

), but do I need

.main.kts

instead of

.ws.kts

to use dependencies?

gammanik

04/24/2020, 2:36 PM

Hello. I have a problem with

ClassLoaders

and

scriptEngine

. Im creating a scriptEngine and adding my dsl rules in there from the outer scope

File("/Users/Nikita/Documents/lib-support/dsl-lib-support/build/libs/dsl-lib-support.jar")

My script returns me Map<String, MethodToMark>. MethodToMark is a part of my dsl rules:

val res: Map<String, MethodToMark>? = engine.eval(script) as Map<String, MethodToMark>?
println(res!!["lib.LibClassOne.method1"] as MethodToMark)

But this code doesn’t work. When I’m calling

res!!["lib.LibClassOne.method1"] as MethodToMark

it gives me an error:

java.lang.ClassCastException: class MethodToMark cannot be cast to class MethodToMark (MethodToMark is in unnamed module of loader <http://java.net|java.net>.URLClassLoader @79609006; MethodToMark is in unnamed module of loader <http://com.intellij.ide.plugins.cl|com.intellij.ide.plugins.cl>.PluginClassLoader @67f6ebd8)

So the problem is that I cannot cast cast the same class to itself because of the fifferent class loaders I guess. Here is a come Image where I’m creating my scriptEngine and adding my dsl rules: How do I solve it?

iguissouma

04/26/2020, 7:58 AM

@gammanik dsl-lib-support.jar is it included in your plugin?

addamsson

04/26/2020, 3:40 PM

I have the following script:

import kotlinx.serialization.Serializable
import kotlinx.serialization.json.Json
import kotlinx.serialization.json.JsonConfiguration

@Serializable
data class User(
    val name: String
)

val user = User("jon")

val json = Json(JsonConfiguration.Stable)

val jsonData = json.stringify(User.serializer(), user)

val result = json.parse(User.serializer(), jsonData)

require(user == result)

which I try to run in a script but I get the following error:

ERROR Unresolved reference: serializer

I guess the problem is that this works with `kotlinx.serialization`'s annotation processing feature. Is it possible to get this working in a script? This is how I run it:

private fun evalFile(scriptFile: File): ResultWithDiagnostics<EvaluationResult> {
    val compilationConfiguration = createJvmCompilationConfigurationFromTemplate<TestScript> {
        jvm {
            dependenciesFromCurrentContext(wholeClasspath = true)
        }
    }
    val evalConfig = createJvmEvaluationConfigurationFromTemplate<TestScript> {
        jvm {
            this.mainArguments.put(arrayOf("1"))
        }
    }

    return BasicJvmScriptingHost().eval(scriptFile.toScriptSource(), compilationConfiguration, evalConfig)
}

MrPowerGamerBR

05/09/2020, 11:15 AM

What can cause slow compile times for scripts? For some reason compiling a ~600 script file is taking almost 2.4 minutes! Is there's anything that could cause such long times? (Example: Wildcard imports, a lot of dependencies in the classpath, etc)

edwinRNDR

05/10/2020, 10:32 AM

Hey, just wanted to share some of my work using kotlin scripting: https://openrndr.discourse.group/t/improved-live-coding-with-orx-olive/106 and

https://www.youtube.com/watch?v=qdgnRct0_nw&feature=youtu.be&t=12428▾

J-P

05/13/2020, 1:15 AM

Dear All, does somebody know whether is is possible to open the REPL with a pre-loaded script template ? It would be great to open the REPL and then be able to execute (interactive) script commands as if I were writing a script within my extension. At the minimum, I would need to open the REPL with some pre-loaded imports so that script objects and functions are recognized.

mr_kay

05/20/2020, 6:51 PM

Hi all, I am trying to pass an argument to a KotlinScript (1.3.72) but it seems the generated script class has only a default constructor

@KotlinScript(
    fileExtension = "siteCost.kts", 
    compilationConfiguration = SiteCostScriptCompilationConfiguration::class,
    evaluationConfiguration = SiteCostScriptEvaluationConfiguration::class
)
abstract class SiteCostScript(val arg: String)

for the time being, the constructor arg is directly passed in the `EvaluationConfiguration`:

object SiteCostScriptEvaluationConfiguration : ScriptEvaluationConfiguration({
    constructorArgs("hugo")
})

however, if the script is evaluated using the following code

fun <T> eval(scriptString: String, resultClass: Class<T>): T {
        val jvmScriptingHost = BasicJvmScriptingHost().eval(
            scriptString.toScriptSource(),
            SiteCostScriptCompilationConfiguration,
            SiteCostScriptEvaluationConfiguration
        )
        return (resultWithDiag.valueOrThrow().returnValue as ResultValue.Value).value as T  
    }

I get an Exception (abbreviated)

java.lang.RuntimeException: java.lang.IllegalArgumentException: wrong number of arguments
	at kotlin.script.experimental.api.ErrorHandlingKt.valueOrThrow(errorHandling.kt:240)
	at com.zitecs.ologis.modules.ologisscriptengine.sitecost.control.kotlinscripting.SiteCostScriptingHost.eval(SiteCostScriptingHost.kt:19)
	at com.zitecs.ologis.modules.ologisscriptengine.sitecost.control.kotlinscripting.SiteCostScriptingHostTest.return ScCostAssessment(SiteCostScriptingHostTest.kt:40)
    ....
	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
Caused by: java.lang.IllegalArgumentException: wrong number of arguments
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at kotlin.script.experimental.jvm.BasicJvmScriptEvaluator.evalWithConfigAndOtherScriptsResults(BasicJvmScriptEvaluator.kt:95)

It seems

BasicJvmScriptEvaluator.evalWithConfigAndOtherScriptsResults

tries to invoke a default constructor (without args) which does not exist. What am I doing wrong? Am I supposed to implement my own

ScriptEvaluator

✔️ 2

louiscad

05/24/2020, 8:06 PM

Hello! I have a Kotlin script with maven dependencies, and I'd like to clear their cache because despite me removing the maven local repo, it keeps on using an outdated version that I even removed from my

~./m2

local repo, which didn't match what I released on a bintray repo. How can I proceed without wiping my whole computer?

jdemeulenaere

05/26/2020, 7:06 AM

Is it a

.main.kts

script ? If yes you can look at the script definition: https://github.com/JetBrains/kotlin/blob/master/libraries/tools/kotlin-main-kts/src/org/jetbrains/kotlin/mainKts/scriptDef.kt#L70

Paul Woitaschek

05/29/2020, 1:54 PM

I have a .main.kts and want to run it from the command line. It has a shebang: #!/usr/bin/env kotlin
. This works fine but when I want to call it with arguments I always have to put a

--

first because else the commands are passed to kotlin and not to the script. I.e.

./my_script.main.kts -- --my-flag

Is there a way to define this so I dont have to call

--

first?

Tmpod

05/31/2020, 2:16 PM

Hey! Checking back in scripting and wondering what's the status on applying compiler plugins

Daren Klamer

06/08/2020, 3:43 AM

the source is this

class Lamp {
                            
                                // property (data member)
                                private var isOn: Boolean = false
                            
                                // member function
                                fun turnOn() {
                                    isOn = true
                                }
                            
                                // member function
                                fun turnOff() {
                                    isOn = false
                                }
                            
                                fun displayLightStatus(lamp: String) {
                                    if (isOn == true)
                                        println("\$lamp lamp is on.")
                                    else
                                        println("\$lamp lamp is off.")
                                }
                            }
                            
                            fun main(args: Array<String>) {
                            
                                val l1 = Lamp() // create l1 object of Lamp class
                                val l2 = Lamp() // create l2 object of Lamp class
                            
                                l1.turnOn()
                                l2.turnOff()
                            
                                l1.displayLightStatus("l1")
                                l2.displayLightStatus("l2")
                            }

SrSouza

06/13/2020, 6:37 PM

Hi @ilya.chernikov with the new IR Compiler will make easy to Coroutines be supported in Scripting, maybe the compiler is not the case that suspend is not yet supported, but over all, the IR will make it easy to be implemented?

Paul Woitaschek

06/16/2020, 8:38 AM

#!/usr/bin/env kotlin
@file:CompilerOptions("-Xopt-in=kotlin.time.ExperimentalTime","-jvm-target=1.8")
@file:DependsOn("com.github.ajalt:clikt:2.7.1")

import com.github.ajalt.clikt.core.CliktCommand
import com.github.ajalt.clikt.parameters.options.option
import com.github.ajalt.clikt.parameters.options.required
import com.github.ajalt.clikt.parameters.types.enum

enum class RPS {
  Rock
}

class Application : CliktCommand(){

  private val rps : RPS by option("--rps").enum<RPS>().required()

  override fun run() {
    println(rps)
  }
}

Application().main(args)

This doesn't compile:

➜  scripts git:(features/huawei_health) ✗ ./test.main.kts -- --rps rock
error: cannot inline bytecode built with JVM target 1.8 into bytecode that is being built with JVM target 1.6. Please specify proper '-jvm-target' option (test.main.kts:16:44)
test.main.kts:16:44: error: cannot inline bytecode built with JVM target 1.8 into bytecode that is being built with JVM target 1.6. Please specify proper '-jvm-target' option
  private val rps : RPS by option("--rps").enum<RPS>().required()

Daren Klamer

06/16/2020, 12:05 PM

val compilationConfiguration = createJvmCompilationConfigurationFromTemplate<Any> {
            compilerOptions("-jvm-target", "1.8", "-Xnew-inference", "-Xinline-classes")
            jvm {
                if (classLoader != null) {
                    dependenciesFromClassloader(
                        classLoader = classLoader,
                        wholeClasspath = true
                    )
                } else {
                    dependenciesFromCurrentContext(
                        wholeClasspath = true
                    )
                }
                providedProperties(typeMap)
            }
            hostConfiguration(ScriptingHostConfiguration {
                jvm {
                    val cacheExtSetting = System.getProperty(COMPILED_SCRIPTS_CACHE_DIR_PROPERTY)
                        ?: System.getenv(COMPILED_SCRIPTS_CACHE_DIR_ENV_VAR)
                    val cacheBaseDir = when {
                        cacheExtSetting == null -> System.getProperty("java.io.tmpdir")
                            ?.let(::File)?.takeIf { it.exists() && it.isDirectory }
                            ?.let { File(it, "main.kts.compiled.cache").apply { mkdir() } }
                        cacheExtSetting.isBlank() -> null
                        else -> File(cacheExtSetting)
                    }?.takeIf { it.exists() && it.isDirectory }
                    //cacheBaseDir = File("/tmp")
                    if (cacheBaseDir != null)
                        compilationCache(
                            CompiledScriptJarsCache { script, scriptCompilationConfiguration ->
                                File(cacheBaseDir,
                                    compiledScriptUniqueName(script, scriptCompilationConfiguration) + ".jar")
                            }
                        )
                }
            })
        }

Nikky

06/20/2020, 1:23 PM

I tried to make a ,kts script that uses

kotlinx-html

to build a website it seems to hang during compilation, 5 minutes and still hanging, first guess is too many functions with lambdas, this is the code: https://gist.github.com/9d9cfa8dd17ad7650d4fbf203e0f2607 short tests of 10-20 lines and just a few things seemed to work fine

SrSouza

06/26/2020, 10:06 PM

Hi @ilya.chernikov, I have embedded definition of the script inside my IntelliJ plugin but ScriptDefinitionsProvider only support jar files as classpath, there is anyway to use the current classpath to find the definition?

SrSouza

06/29/2020, 9:26 PM

Two questions about the dependencies resolver. 1. I test the IvyResolver at my script definition and works great, but I notice a long freeze in my IDEA when it load the dependencies. This is a know issue? There is anyway to not freeze and show a load bar at the bottom? Like the Gradle sync taks. 2. I saw that the there is a Maven Resolver separated module, the IvyResolver could be one too? I'm using it because the Ivy library is more lightweight them the maven aether that kotlin-scripting-dependencies-maven uses.

SrSouza

07/01/2020, 2:05 AM

Hi folks, can you help me with something about the IntelliJ and Scripts? I want to my script have the extension:

bk.kts

and I try to create a New File Action at the IntelliJ and my extension is beeing removed, any work around or there is a better way to do that?

Matthieu Stombellini

07/01/2020, 3:13 PM

Hi, while trying to use

JvmScriptCompiler

the Kotlin compiler complained about not finding

ScriptCompilerProxy

in the classpath. I'm using

kotlin-scripting-jvm-host-embeddable

and I had to add

kotlin-scripting-compiler-embeddable

as a dependency as well for the Kotlin compiler to find it. Is this normal? (1.3.72)

Matthieu Stombellini

07/01/2020, 3:45 PM

Also, the compilation fails if the SourceCode object's

name

has a dot in it -- is this specified anywhere? (it failed in a weird way for me, it didn't detect the implicit receivers i set in the compilation configuration at all)

SrSouza

07/03/2020, 11:23 PM

Hi @ilya.chernikov, in the previous versions I use

actualClassLoader

in the Evaluation Configuration, but now, it is not available with public access, there is any alternative to it? to load the script in a my custom classloader?

Egor

07/06/2020, 10:04 AM

Hi, @ilya.chernikov . I use kotlin scripts in our project. We have different versions of the script in that project. Every version resides in different package. For example: packageA | --> myscript.kts packageB | --> myscript.kts When I try to build the project I get :

Duplicate JVM class name 'B_main' generated from: Myscript, Myscript

error. In this case I used gradle for the build. I tried with it with custom Kotlin script template as well as with ‘main.kts’ template. The result is the same. I checked in gradle

build

directory and saw that script generated classes resides on the top level and not in separate packages (

packageA

and

packageB

). How can I fix it?

Dan T

07/07/2020, 10:49 PM

New scripting user question: I'm wondering about the current status of IDE support for running and debugging kts scripts. e.g. `foo.main.kts`:

#!/usr/bin/env kotlin

println("foo")

fails in IntelliJ 2020.1.2 with the following error:

error: org/jetbrains/kotlin/scripting/compiler/plugin/impl/KJvmCompiledModuleInMemory (foo.main.kts): java.lang.NoClassDefFoundError: org/jetbrains/kotlin/scripting/compiler/plugin/impl/KJvmCompiledModuleInMemory

I tried the

1.8

and

11.0.5

as JDKs. Is this something that should be working currently? If not, is there an issue/page to track the progress of this? Thanks.

SrSouza

07/09/2020, 4:16 AM

If you want to check the current state of my ScriptDef that I found this two issues, is in the Github: https://github.com/DevSrSouza/Bukkript/blob/master/script-definition/src/main/kotlin/br/com/devsrsouza/bukkript/script/definition/ScriptDef.kt

efemoney

07/09/2020, 9:48 AM

Maybe worth mentioning but I noticed in 1.4-M3,

jvm-host-embeddable

has been removed (renamed?) in favor of

jvm-host-unshaded

. Is this a simple artifact name change or are there other more detailed changes under the hood?

07/13/2020, 12:32 PM

How do I pass

--

flags as arguments to a script? They are interpreted by kotlin rather than passed as arguments to my script. I tried using

env -S kotlin --

as my shebang but

kotlin

doesn't seem to support

--

👀 1

Title

07/13/2020, 12:32 PM

How do I pass

--

flags as arguments to a script? They are interpreted by kotlin rather than passed as arguments to my script. I tried using

env -S kotlin --

as my shebang but

kotlin

doesn't seem to support

--

👀 1

e.g.,

$ ./test.main.kts --debug
error: invalid argument: --debug
info: use -help for more information

Filed https://youtrack.jetbrains.com/issue/KT-40257

kenkyee

07/14/2020, 10:58 AM

Try using this library... Been pretty happy with it used with kscript: https://ajalt.github.io/clikt/

07/14/2020, 5:01 PM

Yes i use clikt everywhere, but the problem was about kotlin intercepting arguments before they even made it into the

args

array

👍 2

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