Is there plan to support Kotlin 1.4?

[kainosk]

Is there plan to support Kotlin 1.4?

Thank you for great protobuf library. ❤️ 👍

[garyp]

Yes definitely. I already have a branch in progress that's on Kotlin 1.4. Unfortunately I ran into some Kotlin compiler bugs and am waiting on 1.4.1 (or whatever the next version will be) to be released.

[garyp]

The branch is available at https://github.com/streem/pbandk/tree/kotlin-1.4 for anyone interested. As mentioned above, it currently is broken because of some Kotlin compiler bugs.

[kainosk]

Thank you for your reply! I'm very happy to know that there is already a plan to support new Kotlin 1.4(.x) ❤️

You can close this issue or should I? Thanks!

[garyp]

I'll keep this open until the Kotlin 1.4 support is merged, in case anyone else has the same question.

[garyp]

Quick update: Kotlin 1.4 support seems to be working on the kotlin-1.4 branch of pbandk (thanks to @JeroenMols for help on this). However, the build is failing in CI because it runs out of memory. Next steps for getting this merged in would be to either figure out how to get the build to consume less memory, or to migrate the CI from CircleCI to GitHub Actions (Streem has a paid account on GitHub Actions, which would allow pbandk to use more resources for CI builds than what's available for free on CircleCI).

[garyp]

Here's an instance of the failure in CI: https://app.circleci.com/pipelines/github/streem/pbandk/357/workflows/c263a7d5-062a-449e-ab24-b9778a8823d3/jobs/895. The build runs out of memory during the :runtime:linkDebugTestLinuxX64 task with the following error:

e: Compilation failed: The /home/circleci/.konan/dependencies/clang-llvm-8.0.0-linux-x86-64/bin/clang++ command returned non-zero exit code: 137.
output:


 * Source files: 
 * Compiler version info: Konan: 1.4.21 / Kotlin: 1.4.21
 * Output kind: PROGRAM

e: org.jetbrains.kotlin.konan.KonanExternalToolFailure: The /home/circleci/.konan/dependencies/clang-llvm-8.0.0-linux-x86-64/bin/clang++ command returned non-zero exit code: 137.

I'm able to replicate the CI failure by running:

docker run --rm -it -m 4g circleci/openjdk:11-jdk-browsers /bin/bash

And then inside the container running the following commands (which mimic the CI environment):

sudo apt update && sudo apt install libncurses5
cd $HOME
git clone https://github.com/streem/pbandk.git
cd pbandk/
git checkout kotlin-1.4
export GRADLE_OPTS="-Dorg.gradle.daemon=false -Dkotlin.compiler.execution.strategy=in-process -Xmx4096m"
./gradlew --no-build-cache build