Builds take too long

[binkley]

Affected Version: 0.17.0-SNAPSHOT
API (fluent-en_GB, infix-en_GB): alll
Platform (jvm, js): all
Extension (none, kotlin 1.3): none

Why does this issue template point out Kotlin 1.3 -- current is 1.5.x?
Likewise, the build output seems to depend on older Kotlin versions.

How to reproduce the problem

Clone the repo. Build with ./gradlew clean build.

Describe the bug

Lots of cmd line noise, and green builds take 10+ minutes. (fyi -- I'm on a modern Mac in my local build).
The warnings lower my confidence for the code, and the long build times make it harder to contribute.

The build noise is potentially addressable (suppressions and the like). The long time may be unavoidable. However, it is offputting for contributors like myself, and impedes the "red-green-refactor" development cycle.

[binkley]

I'm not sure about the "bug" label. Perhaps "enhancement"?

[robstoll]

@binkley thanks for the feedback.

Why does this issue template point out Kotlin 1.3 -- current is 1.5.x?

Atrium still supports Kotlin 1.2 and thus provides a Kotlin 1.3 extension (an own artifact) which can be used by users using Kotlin >= 1.3. I will drop 1.2 support once we switch to the new MPP plugins which requires Kotlin 1.4 and Kotlin 1.2 is not able to understand 1.4. At this point we will also switch the project to kotlin 1.5 but still emit Kotlin 1.4 compatible byte code, so that Kotlin 1.3 users can still use Atrium. I don't know yet when we drop support for Kotlin 1.3 but as long as it does not hurt us, I intend to support older versions (as not everyone can update to new versions in the pace Jetbrains releases new versions)

Likewise, the build output seems to depend on older Kotlin versions.

Unfortunately yes, Atrium was already around when MPP was in an early stage and still uses the old MPP plugins. There is #744 which is already around for this issue. Would of course be great if you find the time to work on it. There is a draft PR (see #744 (comment)) lying around which will help in doing the migration.

and green builds take 10+ minutes

Are you on the latest master? There was an issue with the r8 configuration with the upgrade to gradle 6.9, gradle suddenly used about 3 - 5min to only configure it (now it even fails as we are still depending on bintray for this dependency as it seems) but it should not be part of the build any more (unless you have CI=1 in your env variables). Please check it with ./gradlew build --dry-run

The build noise is potentially addressable

I don't have the time to address this but would be cool if you find the time to suppress the warnings regarding the deprecated MPP plugin.

[robstoll]

@binkley we moved to the new MPP plugin clean build takes 2min on my machine currently (we are skipping js on local without the CI flag for now). I think that is reasonable fast.
Closing this, let me know in case you still have ideas how we can improve