kotlinlang #gradle

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Shan

01/26/2020, 2:16 AM

I am adding it like so:

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repositories {
    maven(url = "<https://maven.jetbrains.space/[my-org]/[my-repo]>")
}

Ran Magen

01/26/2020, 5:26 AM

One more groovy -> kts question. before, with groovy, for the Copy task's

expand

function, we passed in a map where a key contained a function value:

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[ pick: { Map<String, Object> stackMap, Object fallback -> stackMap.getOrDefault(stack, fallback) } ]

The template file we copied had stuff like:

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replicas: ${pick(1, 'staging': 2, 'prod': 9)}

Now that I've converted the groovy code (in the build file, not the template) to Kotlin script and it now looks like

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val pick = { stackMap: Map<String, Any>, fallback: Any -> stackMap.getOrDefault(stack, fallback) }

and I pass in to `expand`:

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expand(mapOf("pick" to pick))

expansion fails saying this:

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groovy.lang.MissingMethodException: No signature of method: Build_gradle$pick$1.call() is applicable for argument types: (LinkedHashMap, Integer) values: [[staging:2, prod:9], 1]

If possible, what's the right way to pass a function in

expand

properties?

thanksforallthefish

01/27/2020, 5:23 PM

hello, sometimes intellij complains about my kotlin dsl script, though gradle then execute correctly. for instance

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plugins {
  id("org.hidetake.swagger.generator") version  "2.18.1"
}

tasks {
  withType<org.hidetake.gradle.swagger.generator.GenerateSwaggerUI> {
    dependsOn("openapi3")
    inputFile = file("$buildDir/api-spec/openapi3.json")
  }
}

org.hidetake.gradle.swagger.generator.GenerateSwaggerUI

is red, causing then

dependsOn

and

inputFile

to be not recognized

Ray Eldath

01/28/2020, 12:54 PM

hey everyone. are there any way to escape
$
when dealing with string? currently I have to write something like

"${'$'}argon2i${'$'}v=19${'$'}m=65536,t=10,p=1${'$'}JAqVeeNXYjPzqQxYOuek9w${'$'}bV2xPVMnPsV36LesGvM/yUDaisR3Bugn9wneiCPMnBY"

which is absolutely very ugly 🙃

tylerwilson

01/28/2020, 10:14 PM

Question: I have a Korlin/JS project that uses settings.gradle.kts and build.gradle.kts and a shared multiplatform project I would like to reference that is using settings.gradle and build.gradle (groovy). Is it possible to reference one from the other, or will I have to convert one to kts or the other to groovy?

Brendan Weinstein

01/29/2020, 12:55 AM

I want to apply the kotlinx plugin within the build.gradle.kts for

buildSrc

(eg use a plugin for the development of plugins), but I am getting this error:

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Plugin [id: 'kotlinx-serialization'] was not found in any of the following sources:

Anyone know how to make a non-core plugin available within the buildSrc build.gradle.kts?

napperley

01/29/2020, 2:03 AM

Is it possible with the Gradle Kotlin DSL to run a process via SSH?

Moritz Platt

01/29/2020, 11:09 AM

Is it safe to use multiple versions of

org.jetbrains.kotlin:kotlin-gradle-plugin

in a Gradle multi-project build?

Sam Garfinkel

01/29/2020, 4:31 PM

Is there a workaround for the

Calling non-final function 'function' in constructor

warning when configuring subclasses of Gradle tasks? For example:

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open class ChildJavaExec: JavaExec() {
    init {
         workingDir("foo/bar")
    }
}

Not sure if I should just ignore it? Tasks need to be non-final in order for Gradle to inject and construct them.

Sagar Suri

01/30/2020, 4:41 AM

Is there any good source to learn about

gradle

build system w.r.t android?

Artem Shumidub

01/30/2020, 6:24 AM

Hello, maybe somebody here could help with it https://kotlinlang.slack.com/archives/C0B8M7BUY/p1580216453085700

Harun

01/31/2020, 6:38 AM

Hello everyone, is there a way after converting ..gradle files to kts in Android Studio to set consecutive modules setup to always use kts. I have seen that creating new modules also re-creates the gradle files even the ones that are there eg build.gradle(app module level) and settings.gradle

Jamie Taylor

01/31/2020, 11:01 AM

Can anyone help me figure out why my project takes so long to build? There seem to be two problems: 1. Incremental builds aren't working for kotlin. I made a dummy class containing no code that isn't referenced anywhere and if I add a line break to it then when I run ./gradlew assembleDebug every single kotlin file is recompiled. I'm basing that on the fact that according to the gradle build scan the compileDebugKotlin task takes as long as it does for a clean build. Java incremental builds seem to be working fine. The projct doesn't contain kapt, the only anotation processor is android databinding and in the gradle.properties we have:

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kotlin.caching.enabled=true
org.gradle.caching=true
android.databinding.incremental=true

2. The Kotlin compiler is just really slow. The project is about 90% Java and 10% Kotlin, but on a clean build the Kotlin compile task takes about twice as long as the java compile task. The project also has a very small pure kotlin module containing three small files, and I just noticed on the scan that the kotlin compile task for that project is taking even longer than the kotlin compile for the main app. I can't find any particularly helpful resources regarding kotlin compiler performance. If I could just see which files it was spending a lot of time on that might help.

Kris Wong

01/31/2020, 3:05 PM

i am trying to create (register) a gradle task that modifies the configuration, but I only want this to happen when the task itself is executed. how can I achieve this?

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android.defaultConfig.testInstrumentationRunnerArguments.remove 'notClass'
        android.defaultConfig.testInstrumentationRunnerArguments 'class': 'com.boxer.sendHarness.SendMessageHarness'

Alex Woods

01/31/2020, 3:20 PM

Hey there guys! We’re making an architecture decision at my company—should we use Groovy or Kotlin for Gradle? What are the strong and weak points of the Kotlin DSL for Gradle?

Dariusz Kuc

02/01/2020, 1:41 AM

hello! I would like to create some custom integration test using Gradle but unsure if that is possible - basically I need to: • start up 2 Spring Boot apps (graphql servers) • once they are up - start node app (graphql gateway) • once everything is up post HTTP request to the node app and verify response • stop all apps I know this most likely would be pretty messy but would love to run such integration test during our CI to ensure the libraries used by SpringBoot apps produce valid results that can be consumed by the node app. Alternative would be to the same with Github Actions but unsure if single action can spawn multiple processes. Any suggestions?

jmfayard

02/03/2020, 6:24 AM

I submitted a PR to an Android sample to convert the Gradle build to Kotlin. There is an interesting discussion going on there I'm curious what happens next 🙂 https://github.com/android/camera-samples/pull/162

K 1

tseisel

02/03/2020, 10:47 AM

Hi everyone, I just created a new project with Kotlin Gradle scripts. I have a property defined in

gradle.properties

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com.foo.myproperty=bar

What is the idiomatic way to read that property from scripts ? The property delegate syntax

val myProperty by project

makes it mandatory to declare a variable with the same name as the property. Moreover, it seems that there is no

settings.property("com.foo.myproperty")

function.

Chenn

02/04/2020, 8:08 AM

Hello there, I'm sorry for the weird timing, but I'm based in Europe. I'm trying to get a Kotlin-Gradle-NPM project going, but I got a little confused with the (outdated?) documentation on the kotlinlang website. I've looked at the release notes for 1.3.5 and 1.3.6 and those gave me a bit more guiding, but I still remain uncertain as to how I can check if Gradle downloaded all the npm packages (if at all). An important not is that I'm trying to build a web interface for embedded and not an android app.

tarek

02/05/2020, 10:06 PM

How would you convert this snippet to

kts

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allprojects {
  if (plugins.hasPlugin("org.jetbrains.kotlin.jvm")) {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
  }

  plugins.withId("com.android.library") {
    extensions.getByName("android").compileOptions {
      sourceCompatibility JavaVersion.VERSION_1_8
      targetCompatibility JavaVersion.VERSION_1_8
    }
  }
}

Marcelo Adamatti

02/06/2020, 6:44 PM

need help: did you guys have this issue caching gradle plugins with docker? https://www.reddit.com/r/gradle/comments/ezvqc5/gradle_docker_springboot_kotlin/ any guess?

Dariusz Kuc

02/07/2020, 2:57 AM

hello, i'm trying to define custom gradle task that accepts output file name and generates corresponding output file according to some logic, e.g.

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@Input
@Option(option = "outputFileName", description = "target file name")
val outputFileName: Property<String> = project.objects.property(String::class.java)

@Suppress("UnstableApiUsage")
@Internal
@OutputFile
val outputFile: RegularFileProperty = project.objects.fileProperty()

How do I properly initialize the

outputFile

with the specified

outputFileName

Javier

02/10/2020, 1:19 AM

I am trying to import kotlin serialization via buildSrc gradle file but I cant get it working

sean

02/10/2020, 2:01 AM

I'm probably missing it in the docs. But is there a way to get xml reports from kotlin multiplatform tests? I have an html output, but am trying to get xml for CI/CD?

Nikita Khlebushkin

02/10/2020, 3:03 PM

Hello! I have a Kotlin compiler plugin in my MPP project that behaves as Annotation Processor (because Annotation Processors doesn't work on MPP according to

https://youtu.be/w-GMlaziIyo?t=118▾

). I also have a Gradle Plugin that wraps my plugin, which eventually is used in my main module. It all works nice and smoothly, BUT: I need the plugin to be run before compiling the main project. I was wondering whether I can have something like

compile.dependsOn(something)

, but I don't know what task should I put in the parenthesis (I don't create explicitly any tasks)

jk2018

02/10/2020, 11:02 PM

Hi, can someone point me to a up-to-date Android stub project with the latest Kotlin with a build.gradle.kts , ideally with a few modules set up ?

apahl

02/11/2020, 2:38 PM

Hi, I have worked with statically typed languages before, but have no prior Java / JVM experience. Therefore the hardest part in learning Kotlin for me is actually the Gradle build system, which (IMO) requires extensive JVM knowledge to understand it. Are there any Gradle Kotlin DSL (

.gradle.kts

build files) tutorials available that do not require such a Java / JVM background? I am exploring Kotlin mainly for Data Science purposes.

corneil

02/11/2020, 3:04 PM

As a long time Gradle user I can tell you that Gradle Kotlin DSL kicks my butt often. The Gradle Groovy DSL is easier for me and there is still a huge amount of documentation and tutorials around that.

👍 3

👎 4

Tmpod

02/12/2020, 7:33 PM

Hey there! Probably a dumb question, but I've never tried Kotlin's EAPs and I'm having some trouble getting the latest 1.3.70 EAP to work (EAP 184). My buildscript looks like this

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group = "..."
version = "..."
description = "..."

object DependencyVersions {
    ...  // just a bunch of const strings for versions
}

plugins {
    kotlin("jvm") version "1.3.70-eap-184"  // afaik this block doesn't see DependencyVersions, so versions gotta be put manually here ig...
    application
}

repositories {
    ...  // bunch of repos
    maven("<https://dl.bintray.com/kotlin/kotlin-eap>")
}

dependencies {
    implementation(kotlin("stdlib"))  
    ...  // more deps
}

tasks {
    compileKotlin {
        ...  // I add some compiler args here
    }
}

application {
    mainClassName = "..."
}

with this said, Gradle can't find any kotlin version that satisfies what I've specified

Sylvain Patenaude

02/12/2020, 10:12 PM

Are there some plugins more "standard" (or widely adopted) to publish libraries (.jar or .framework) to a Maven repository (such as mavenCentral or jcenter)? It looks that there are several existing ones.