kotlinlang #gradle

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sdeleuze

05/25/2018, 10:46 AM

Question: why do I have to use

val shadowJar by tasks.getting(ShadowJar::class) { ... }

to exclude files with the shadow plugin instead of using

shadow { ... }

which provides a useless

ShadowExtension

lambda? Is the shadow plugin badly designed ? I see this kind of issue in various plugins so I would like to know what is the rationale behind this and understand that kind of issue and at what level this should be fixed ...

mkobit

05/25/2018, 4:11 PM

@Lucas it unfortunately looks like groovy dynamicness - https://github.com/researchgate/gradle-release/blob/b76fb21cc325f689c154b5674c4c96054cbc6f02/src/main/groovy/net/researchgate/release/ReleaseExtension.groovy#L77-L121

Lex Luthra

05/28/2018, 1:38 AM

Recently, I migrated my project's Gradle build script from Groovy to Kotlin DSL. As part of that change, I converted the configuration for the Transmode gradle-docker plugin as follows:

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// Groovy DSL
task buildDocker(type: Docker) {
    baseImage = 'develar/java:latest'
    push = project.hasProperty('push')
    tag = 'geowarin/sout-chuck-norris'
    addFile {
        from jar
        rename {'app.jar'}
    }
    entryPoint(['java', '-Djava.security.egd=file:/dev/./urandom', '-jar', '/app.jar'])
    exposePort(8080)
}
buildDocker.dependsOn(build)

// Kotlin DSL
import se.transmode.gradle.plugins.docker.DockerTask

buildscript {
    dependencies {
        classpath("se.transmode.gradle:gradle-docker:1.2")
    }
    repositories {
        jcenter()
    }
}

tasks {
    "buildDocker"(DockerTask::class) {
        val appJarName = "app.jar"
        dependsOn(tasks["build"])
        baseImage = "develar/java:latest"
        push = project.hasProperty("push")
        tag = "geowarin/sout-chuck-norris"
        addFile(closureOf<CopySpec> {
            from(tasks["jar"] as CopySpec)
            rename { appJarName }
        })
        entryPoint(mutableListOf("java", "-Djava.security.egd=file:/dev/./urandom", "-jar", "/$appJarName"))
        exposePort(if (project.hasProperty("server.port")) project.property("server.port") as Int else 8080)
    }
}

However, when I run the buildDocker task I receive the following error on the console:

Copy code

What went wrong: Execution failed for task ':buildDocker'. se.transmode.gradle.plugins.docker.DockerTask$_createTarArchive_closure3_closure11_closure12 cannot be cast to org.gradle.api.file.CopySpec

I have worked around it by copying the file using doFirst and then invoking the form of addFile that accepts a path String instead of a Closure but would like to get to the bottom of this issue as it might help others in the future.

jlleitschuh

05/31/2018, 12:43 PM

@xenoterracide What you want is the version

"5.+

which means "the highest version of

5.xxxx

that can be found.

sdeleuze

05/31/2018, 2:39 PM

Something more staticaly type than Groovy closure

eskatos

05/31/2018, 2:58 PM

Action<T>

predates the Kotlin DSL and I believe was already the recommended way. But yes, gradle guides will be updated with best practices that work for both DSLs.

👍 1

mkobit

05/31/2018, 3:02 PM

@eskatos might also be helpful if the

java-gradle-plugin

did some validation for those kinds of APIs as well

svenjacobs

06/01/2018, 7:24 AM

Well, the point is I’m trying to figure out another Kotlin related problem and first I want to fix all warnings/dependency issues to find out whether these are the reasons for my other issue

Ed M

06/02/2018, 4:39 PM

looks like you haven't applied either the kotlin or the java plugins

Ed M

06/04/2018, 3:47 AM

is there any reason you can’t just do

xeno.setSourceSets(project.sourceSets.findByName(SourceSet.MAIN_SOURCE_SET_NAME))

gildor

06/05/2018, 6:34 AM

I set Kotlin plugin version (usually only on root module or in settings.gradle) and omit version of stdlib

Ed M

06/05/2018, 8:12 PM

why do you have

java-library

in backticks?

fred.deschenes

06/05/2018, 8:15 PM

am I crazy or is it impossible to not apply a built-in plugin (ie:

application

) on the root project?

james_bassett

06/06/2018, 12:37 AM

I might try and raise an issue later today when I have more details, but my builds suddenly hang after the composeUp task after upgrading to 4.8 (when using the docker plugin https://github.com/avast/gradle-docker-compose-plugin). It appears to finish the task normally, but then just sits there

IDLE

forever.

--debug

just shows the daemon collecting memory stats periodically.

Florian Wiesner

06/06/2018, 8:36 AM

has anyone of you a working example of a gradle plugin project that uses the Spring or AllOpen Kotlin sub-plugins in TestKit with the Kotlin DSL?

Czar

06/06/2018, 9:56 PM

you could also try using

application

plugin instead of configuring manifest manually

➕ 1

fitzoh

06/07/2018, 10:52 AM

https://zeroturnaround.com/rebellabs/using-buildsrc-for-custom-logic-in-gradle-builds/

valerie.turlington

06/07/2018, 2:16 PM

“No main manifest attribute” 🤔 I think I’m missing something.

Czar

06/07/2018, 7:03 PM

e.g. if you have this in buildSrc:

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object libs {
	const val kotlinVersion = "1.2.41"
}

then you can use it in plugins:

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import libs
import org.gradle.kotlin.dsl.*

plugins {
    kotlin("jvm") version libs.kotlinVersion
}

ianbrandt

06/09/2018, 8:20 AM

Is there a more up-to-date way to configure the

wrapper

task from the Kotlin DSL than this example (https://github.com/gradle/kotlin-dsl/issues/438#issuecomment-318749893)?:

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import org.gradle.api.tasks.wrapper.Wrapper.DistributionType
task<Wrapper>("wrapper") {
  gradleVersion = "4.8"
  distributionType = DistributionType.ALL
}

It works, but results in a deprecation warning:

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$ ./gradlew build --warning-mode=all

> Configure project :
Creating a custom task named 'wrapper' has been deprecated and is scheduled to be removed in Gradle 5.0. You can configure the existing task using the 'wrapper { }' syntax or create your custom task under a different name.'.

sdeleuze

06/13/2018, 10:36 AM

Could it be possible to bundle

inline fun <reified T : Task> task(noinline configuration: T.() -> Unit) = tasks.creating(T::class, configuration)

by default ? (from https://github.com/gradle/kotlin-dsl/blob/master/build.gradle.kts#L149 and found in various projects since it is super useful)

➕ 3

👍🏼 1

ilya.gorbunov

06/15/2018, 12:24 AM

kotlinOptions.freeCompilerArgs += ["-Xprogressive"]

G 1

👍 1

dsvoronin

06/15/2018, 3:30 PM

Is there any way to override embeddedKotlinVersion? Iam using gradle 4,8 (kotlin dsl 0.17.5 , kotlin embedded 1.2.41) and kotlin version 1.2.50 in project

buildSrc/build.gradle.kts

contains

plugins { kotlin-dsl}

and root build.gradle.kts overrides kotlin plugin version with

Copy code

buildscript {
    val kotlinVersion: String by project
    dependencies {
        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion")
    }
}

getting this warning on kotlin compilation tasks

Copy code

Compilation with Kotlin compile daemon was not successful
java.lang.NoSuchMethodError: org.jetbrains.kotlin.daemon.common.IncrementalCompilationOptions.<init>(ZLjava/util/List;Ljava/util/List;Ljava/io/File;Ljava/lang/String;ILorg/jetbrains/kotlin/daemon/common/CompilerMode;Lorg/jetbrains/kotlin/daemon/common/CompileService$TargetPlatform;[Ljava/lang/Integer;I[Ljava/lang/Integer;ZLjava/util/List;Lorg/jetbrains/kotlin/daemon/common/MultiModuleICSettings;Lorg/jetbrains/kotlin/daemon/common/IncrementalModuleInfo;)V
        at org.jetbrains.kotlin.compilerRunner.GradleCompilerRunner.incrementalCompilationWithDaemon(GradleKotlinCompilerRunner.kt:264)

bissell

06/17/2018, 8:56 PM

is there a canonical list of the available

freeCompilerArgs

somewhere?

kotlinc -help

doesn't mention '-Xprogressive' for example

bissell

06/17/2018, 9:19 PM

Okay so setting up

KotlinCompile

and

Kotlin2JsCompile

separately helped. I still can't figure out how to get them to take a common config though, if anyone with good Gradle-fu could take a look it would be much appreciated 🙂 :

bissell

06/17/2018, 9:30 PM

Also, is the

KotlinCommonCompile

target broken? Whenever I try to use it in my build script in the same spot as

KotlinCompile

and

Kotlin2JsCompile

I get:

Copy code

> Could not get unknown property 'org' for project ':common' of type org.gradle.api.Project.

ilya.gorbunov

06/17/2018, 10:03 PM

@bissell there's no such class, better to use interfaces from `org.jetbrains.kotlin.gradle.dsl`: https://github.com/JetBrains/kotlin/blob/1.2.50/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/dsl/KotlinCompile.kt

sdeleuze

06/19/2018, 11:34 AM

Is there any plan to leverage Kotlin 1.2.50 scripting improvements in Gradle Kotlin DSL and can we expect significant performance improvements?

👍 4

xenoterracide

06/19/2018, 1:07 PM

by any chance does anyone know how to make it so bitbucket pipelines doesn't refetch gradle itself each time?

napperley

06/20/2018, 3:00 AM

Is there something in Gradle that will show all imports (based on all applied plugins) that can be included in a build.gradle.kts file? Need this in order to know what to import from the Konan plugin.