kotlinlang #gradle

appToken { ApplicationVariant variant ->
        switch (variant.buildType.name) {
            case 'develop': 'XXXX'
                break
            case 'release': 'YYYY'
                break
        }
    }

How can I access the same specific ApplicationVariant? The only thing I could think of was to use

android.applicationVariants.first()

, but I get Build Failure error: Collection is empty.

jcechace

10/14/2018, 9:32 AM

Any idea how to make this

build.gradle.kts

work? What I need is esentially a kotlin-dsl gradle project with latest ktor

Nikky

10/14/2018, 6:06 PM

message has been deleted

jlleitschuh

10/15/2018, 8:45 PM

@Paul Woitaschek Hi,

ktlint-gradle

plugin author here. What are you actually trying to achieve here?

CamilleBC

10/16/2018, 9:29 AM

Hello guys! I've been trying to setup kotlin 1.3rc in my project. I've been in Tools -> kotlin -> Configure Kotlin Updates and activated

Early Access Preview 1.3

. My project build.gradle has

buildscript {
    ext.kotlin_version = '1.3.0-rc-146'
    repositories {
        google()
        jcenter()
        maven { url '<https://dl.bintray.com/kotlin/kotlin-eap>' }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

But I cannot resolve this line in my app build.gradle:

implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"

It fails with the following message:

Failed to resolve: org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.3.0-rc-146

Do you now how to implement the stdlib for kotlin in the gradle file? I've been to MVN repository (https://mvnrepository.com/artifact/org.jetbrains.kotlin/kotlin-stdlib/1.3.0-rc-146) and used their gradle line. It still displays

Failed to resolve: org.jetbrains.kotlin:kotlin-stdlib:1.3.0-rc-146

. Help? 😄

Nikky

10/16/2018, 9:32 AM

i'd still suggest to switch to the plugins block because gradle can cache the loaded pugins and know more about what is loaded, can generate accessors and the like

Nikky

10/16/2018, 1:27 PM

it simplifies buildscripts a lot and learning how to move constants and functions into

buildSrc

also helps with that

jmfayard

10/16/2018, 1:41 PM

good thanks!

jmfayard

10/16/2018, 1:48 PM

What I would like to see (and contribute to!) is a a list of the most popular gradle plugins that would be something like this

Dias

10/16/2018, 3:41 PM

buildscript {
    repositories {
        jcenter()
        maven { url "<https://packages.dns.ad.zopa.com/artifactory/maven-libs-virtual>" }
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.2.71"
    }
}

ribesg

10/18/2018, 10:32 AM

How do you define a function in

kotlin-dsl

? IntelliJ keeps saying my function has no body

rocketraman

10/19/2018, 4:53 AM

Figured it out: a plugin was doing some config based on CI=true (turning off snapshot caching) but in the after evaluation block, which seems to conflict with kotlinScriptDef -- moving the setting to outside the after eval block fixed it.

enleur

10/19/2018, 9:04 AM

trying to change source sets for kotlin, is this the best way to do it? UPD

val SourceSet.kotlin: SourceDirectorySet
    get() = withConvention(KotlinSourceSet::class){ kotlin }

sourceSets {
    getByName("main") {
        kotlin.srcDirs("src")
        resources.srcDirs("resources")
    }

    getByName("test") {
        kotlin.srcDirs("test")
        resources.srcDirs("testresources")
    }
}

jmfayard

10/19/2018, 11:32 AM

Have you ever wanted to write an extension fonction like

fun  Project.doSomethingCool()

that would also works in a Groovy

build.gradle

file? Have a look at this pattern:

project.kt.doSomethingCool()

https://github.com/jmfayard/gradledemo/commit/896ea008fea9d792d69dad122addc76d09ebce54

🇳🇴 1

JoeHegarty

10/19/2018, 8:58 PM

I assume I can write a Gradle plugin in Kotlin? I notice the

KotlinBasePluginWrapper

is in Kotlin but obviously the majority of plugins are Groovy. Are there any gotchas? Specifically around the fact that I assume Kotlin is already in the classpath in Gradle due to the DSL? Are there any lightweight examples of how to set up a project for this?

Johan Vergeer

10/20/2018, 10:23 AM

Hi all, I’m running into some challenges while trying to create integration tests using Gradle Kotlin DSL. I already just posted a question on StackOverflow. But I hope someone here can help me out with this one. https://stackoverflow.com/questions/52904603/integration-tests-with-gradle-kotlin-dsl

zachtib

10/20/2018, 12:30 PM

this is the source file inside buildSrc. From what I can tell, it should compile, but I get an error that "compile" can't be found

utils_kt.kt

Paul Woitaschek

10/21/2018, 7:16 AM

How can I do that for debug builds only?

Nikky

10/21/2018, 12:48 PM

i see.. what should i do for a multi module project ? i want to not redeclar adependencies in every module but i also do not want to leak them fro mthe library

dsvoronin

10/22/2018, 1:13 PM

like that:

pluginManagement {
    resolutionStrategy {
        eachPlugin {
            if (requested.id.id.startsWith("org.jetbrains.kotlin")) {
                useVersion(kotlinVersion)
            }
        }
    }
}

dsvoronin

10/22/2018, 1:16 PM

not sure if buildSrc classpath accessible in

settings.gradle.kts

jcechace

10/22/2018, 1:17 PM

I really don’t see the reason to use buildSrc just to use a variable (I don’t need any more complex build logic — which if I understand correctly is what buildSrc is for)

eskatos

10/22/2018, 6:13 PM

@dsvoronin how timely, I just wrote this https://builds.gradle.org/repository/download/Gradle_Check_BuildDistributions/16892087:id/distributions/gradle-5.0-all.zip%21/gradle-5.0-20181022184542%2B0200/docs/userguide/kotlin_dsl.html#troubleshooting

Nikky

10/23/2018, 9:46 AM

@nikolaymetchev please see https://spekframework.org/migration/

dsvoronin

10/23/2018, 12:50 PM

Got some really weird state with script dep’s resolving:

org.gradle.tooling.BuildException: Could not fetch model of type 'KotlinBuildScriptModel' using Gradle installation '/Users/dsvoronin/.gradle/wrapper/dists/gradle-4.10.2-bin/em75h4kbtmi6i8f32m058ve4q/gradle-4.10.2'.

…

Caused by: org.gradle.internal.metaobject.AbstractDynamicObject$CustomMessageMissingMethodException: Could not find method api() for arguments [com.adjust.sdk:adjust-android-criteo:4.15.0] on object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler.

rewriting groovy script to kts in fact solves issue! but thats weird, i have alots of groovy scripts in project (150+)

dagguh

10/23/2018, 3:58 PM

where's the changelog/source of the Kotlin Gradle Plugin? Standard locations like the Maven Central entry (https://mvnrepository.com/artifact/org.jetbrains.kotlin/kotlin-gradle-plugin/1.2.70) or Gradle plugin portal (https://plugins.gradle.org/plugin/org.jetbrains.kotlin.jvm/1.2.70) simply refer to kotlinlang.org, which doesn't really help

breandan

10/24/2018, 7:33 AM

Some feedback having used the Kotlin DSL for a while: it's very easy to migrate boilerplate applications, but if you use any kind of plugin the process is very cumbersome. I recently wanted to use the

org.jetbrains.gradle.plugin.idea-ext

plugin, which required a bunch of trial and error to translate (and the result does not look very natural). Are plugin authors expected to make their API Kotlin DSL friendly, or is there some kind of migration process planned? This was the result: https://github.com/acejump/AceJump/blob/6d06723fc5f590e0b75ea78d260c7f23bc3b87aa/build.gradle.kts#L28:L41

octylFractal

10/24/2018, 7:37 AM

runConfigurations

looks like it should extend one of Gradle's standard named collections, and the DSL adds special overrides for that, you should be able to do something like

create<...Application>("runIde") { ...

if it does

👍 1

breandan

10/24/2018, 7:43 AM

I understand they didn't want to use the same DSL in Kotlin as Groovy, but there's a bunch of extra ceremony for using the Kotlin DSL right now

jmfayard

10/24/2018, 9:38 AM

Looking at a complete example of what it looks like to convert a project to from Groovy to Kotlin? Have a look at what I did here https://github.com/rozkminiacz/KotlinUnitTesting/pull/2