kotlinlang #build-tools

the 1.2.2x releases seem pretty broken. Lot of colleagues reporting just weird issues popping up - Kotlin plugin in gradle fails to apply - breakpoints won’t hit in tests -

Cannot access 'XXX': it is internal in 'YYY'

happening in random places (cleared by a gradle clean or killing daemons) all on android studio, but haven’t tested intelliJ

Zac Sweers

01/24/2018, 10:47 AM

A problem occurred evaluating project ':tooling:kdata-moshi:integration'.
> Could not find implementation class 'org.jetbrains.kotlin.gradle.plugin.KotlinPluginWrapper' for plugin 'org.jetbrains.kotlin.jvm' specified in jar:file:/Users/pandanomic/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-gradle-plugin/1.2.21/e53ec8cdacbc461d750d0add731e803e5d4cf71c/kotlin-gradle-plugin-1.2.21.jar!/META-INF/gradle-plugins/org.jetbrains.kotlin.jvm.properties.

albertgao

02/19/2018, 10:21 PM

That’s fair. But the message from IDE is confusing: Test events were not received. I know this may because gradle won’t trigger the test event when nothing changes. But still, a little bit confuse 😄

thalescm

02/21/2018, 10:02 PM

@yan do you have any clue ☝️ ?

beholder

04/20/2018, 11:49 AM

How to enable new compiler option

-Xenable-jvm-default

in Maven and Gradle?

diesieben07

06/11/2018, 12:08 PM

I am generating some Kotlin code using KotlinPoet. How would I best mark the target directory as a code-source using Gradle? The following works, but marks the directory as a regular source root in IntelliJ, instead of "Generated Sources Root"

sourceSets {
    main.kotlin.srcDirs += 'generated/kotlin'
}

Casey Kulm

07/14/2018, 8:06 PM

I do not want to have to explicilty disable a company made lint rule in my personal project, but I’m not sure how. I cannot see where this company specific lint rule is living. Seems like it’s living within Android Studio iteself

michaeldang

07/26/2018, 11:01 PM

Hi all! Does anyone know if it’s possible for the

-Werror

flag to ignore generated files? I assume not, but just wanted to ask

mglukhikh

09/14/2018, 10:19 AM

We are glad to announce beta version 0.2.0 of Gradle inspection plugin! Gradle inspection plugin is a tool which is able to run Kotlin inspections, code reformatting and cleanup as Gradle tasks, using configurable versions of IDEA CE and Kotlin plugin. The tool can be helpful as a part of continuous integration and/or code review tools and/or code analysis tools. It's still "project under development", but we will greatly appreciate any feedback about the tool. Basic usage information can be found in README here: https://github.com/JetBrains/inspection-plugin.

🔥 2

👍 6

🤘 1

kirillrakhman

10/08/2018, 7:50 AM

hey, @Alexander Podkhalyuzin [JB], at KotlinConf we've talked about the possibility of having code hot reload in Gradle builds. You've asked me to remind you 😉

👍 1

🤔 5

Kenneth

10/16/2018, 8:20 AM

Is there any good reason to use Gradle when you are used to Maven?

xyma

10/23/2018, 2:11 AM

Hi，is there any code formatter & lint tool that can integrate with maven, I tried

ktlin

, but it’s rules is different from the official one

Ravi Hasija

10/24/2018, 4:59 AM

Hello, Is their any way in maven to have kotlin + java as main source and groovy as test source?

theiw

10/24/2018, 8:10 PM

this is probably a better channel for this

Joe

10/28/2018, 2:38 PM

I'm build a kotlin library and when I run build with

./gradlew build

, it creates the jar file, but not when I use

Build Project

Build Module

in Intellij. How do I get those commands to have the same output?

mantono

11/01/2018, 1:08 PM

Does anyone know of any good procedure or build tool to help you with semantic versioning when you are creating libraries? For example, I would need something that make sure I do not accidentally change a function or class that is exposed in the API of my library in a breaking way. So I would get an warning or error at build time if the signature of a function has changed.

Lommelun

11/04/2018, 11:59 PM

Hi, I'm wondering if there are any best-practises or points to think about when deciding how much or when to modularize a project into multiple build files (maven modules, gradle subprojects). Does anyone have any good advice for when, and how to decide what to break up into different build modules?

Lonwabo

11/14/2018, 9:10 AM

Hello, Has anyone been able to configure requery using kotlin dsl in build.gradle.kts?

lukaswelte

11/20/2018, 8:17 AM

In maven and gradle you can set

<kotlin.code.style>official</kotlin.code.style>

for a code style (which is super nice). Is there tooling which can lint the code to follow the code style? Would be great to have it directly in maven, but a additional tool would also be fine

Damiano Giusti

02/27/2019, 8:35 PM

Hi everyone, I have issues creating a library fat jar for my kotlin project. I’m using the built-in jar plugin and adding the compiled dependencies. This is the task:

task fatJar(type: Jar) {
    from {
        // Add runtime dependencies to jar.
        configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) }
    }
    with jar
}

Is there something wrong? When I include the jar into another project I can only see my classes from the Java code, not the Kotlin one.

adams2

03/12/2019, 11:16 PM

I'm actually just trying to run --help on it to see if there's a --verbose option

adams2

03/13/2019, 11:53 PM

do I want to use the KotlinCompileDaemon or should I set

-Dkotlin.compiler.execution.strategy=“in-process”

Smallville7123

04/12/2019, 2:49 AM

what build tools are there for targeting kotlin-native and kotlin-jvm

Hawk

04/17/2019, 9:50 PM

Hey, I have a weird one. I have a project that is currently building fine on a colleagues windows pc, it also builds fine on our TeamCity agent. However, on my pc Windows 1809, I get the following exception (will post below). I've tried

mvn package

on wsl (ubuntu 1804) using the default jdk (10) as well as openjdk11 both give the same error. Same error when I try and run from intellij (right click green arrow -> run ). Any ideas 😕

ralf

04/22/2019, 7:48 PM

I realized that #gradle might not be the right channel for this question, because it’s about the Kotlin DSL. Is there a way to do this?

Marc Knaup

05/09/2019, 2:11 PM

Hey guys, does anybody know why I get the following error when I remove either the

exclude

or the

attributes

block from my dependencies? https://github.com/fluidsonic/fluid-json/blob/master/annotation-processor/build.gradle.kts#L18 `./gradlew :fluid-json-examples:kaptKotlin`:

-.txt

adams2

06/11/2019, 4:00 PM

so my compiler crashes intermittently

-.txt

Maksim Vlasov

07/31/2019, 11:06 AM

Hi! I have a question about kotlin-maven-plugin. Do I have to provide configuration parameters explicitly like in example below:

<plugin>
	<groupId>org.jetbrains.kotlin</groupId>
	<artifactId>kotlin-maven-plugin</artifactId>
	<version>${kotlin.version}</version>
	<executions>
		<execution>
			<id>compile</id>
			<phase>compile</phase>
			<goals>
				<goal>compile</goal>
			</goals>
		</execution>
		<execution>
			<id>test-compile</id>
			<phase>test-compile</phase>
			<goals>
				<goal>test-compile</goal>
			</goals>
		</execution>
	</executions>
	<configuration>
		<jvmTarget>${java.version}</jvmTarget>
		<javaParameters>true</javaParameters>
	</configuration>
</plugin>

or I could simply set a property like this:

<properties>
	<kotlin.compiler.jvmTarget>1.8</kotlin.compiler.jvmTarget>
</properties>

Eugen Martynov

08/21/2019, 11:26 AM

Could it be related to memory pressure?

christiangruber

08/23/2019, 5:58 PM

I'm trying to track down a problem with the kotlin bazel rules, which seems to occur when you switch from pulling in kotlinc 1.3.40+. The compiler seems to have no problems if it's <= 1.3.31, but anything past 1.3.40+, with no infrastructure/rules changes, results in failure to see internal types and methods. Repeat, it's precisely the same rule infrastructure, so it builds

-Xfriend-paths

and does all of that. The only variable is swapping in a later kotlinc. I can't find anything in the change-logs to indicate a change in internal/module enforcement in that timeline. Anyone know of changes that might affect internal enforcement and the behavior of

-Xfriend-paths

Title

christiangruber

08/23/2019, 5:58 PM

-Xfriend-paths

-Xfriend-paths

StevieB

08/23/2019, 8:16 PM

The difference between the versions that caused me a problem was with a plugin that builds module-info.java of all sorts of things and it baulked over kotlin.native.concurrent because "native" is a java reserved word, that said, I don't know what bazel is or what "-Xfriendpaths" are. But you did mention modules!

christiangruber

08/23/2019, 8:41 PM

Yeah - this is a different thing entirely. No kotlin native stuff involved here.

StevieB

08/23/2019, 9:40 PM

Ok, it was worth a try, there was no kotlin native stuff in mine either, the older kotlin stdlib doesn't contain kotlin.native and the newer ones do, I don't know why exactly, but the result is, doing moduley things just on the JVM can (or could, it's fixed now - for the jlink plugin) run into this.

artem_zin

08/29/2019, 8:32 PM

@christiangruber likely due to this commit

Check friend jars paths for exact match

https://github.com/JetBrains/kotlin/commit/db6a7779b841995a68a7dff25bf382acbd7ef2fb First public release with it is exactly

v1.3.40

1.3.31

didn’t have it

christiangruber

08/29/2019, 8:34 PM

@artem_zin - Aha! Thank you. That looks about right. That should help me work this out.

artem_zin

08/29/2019, 8:35 PM

👍 pls post an update here with your findings, I’m just curious but also we’ll hit it too one way or another 😄

christiangruber

08/29/2019, 8:37 PM

Oh for sure. I'll actually update my rules fork with whatever I figure out.

👍 1

Still haven't gotten to this, but it's starting to get higher priority. Also, (side note) I'll be upstreaming my kotlin rules fork to the main bazel project, at their request, so I'll probably try to finish that before I tackle this. But we do need 1.3.50+ so I will get to this in the next couple of weeks, or early Q4 if I can't.

So... found it.

If you have one -Xfriends-path entry, it works fine. If you have two it doesn't. Why you might ask? Well, I asked myself that question. By the time I was done answering it, I was step-through debugging individual calls to kotlinc.

So it turns out with more than one entry in -Xfriends-path, the values in the path weren't being split. So the whole string was being passed in, not the individual path entries.

Why is THAT you may ask? Well... I also asked this.

First, I got fooled because I went hunting for the splitting code, and found.

ArraysKt.filterNot(arguments.getFriendModules().split(File.pathSeparator), String::isEmpty)

That looks right, I thought to myself. So what's wrong?

That actually fooled me for about four hours of banging my head on my keyboard.

Until I realized that was in the K2JSCompiler class, not the java compiler.

It never occurred to me that they would treat this differently... and they do.

In the java it's:

environment.configuration.getList(JVMConfigurationKeys.FRIEND_PATHS)

- a whole different infrastructure.

So, a getList() on a property-like construct often has a comma-separated default, so I thought "fuck it, why not". Sure enough. When I separated with a comma, not a semicolon (or platform path separator), it worked.

I need to file a bug. You have to use two different separators for the two backends. Not even sure what the native one would do.

Ima have to file a bug.

artem_zin

10/09/2019, 8:05 PM

dang, thanks for this investigation 👍

christiangruber

10/29/2019, 6:54 PM

All fixed in the latest bazel rules release

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