any suggestions for plugins to detect unused depen...

# gradle

[William Reed]

any suggestions for plugins to detect unused dependencies in a kotlin DSL android project? I have seen https://github.com/Faire/gradle-kotlin-buildozer but I get an error about needing java 16

Incompatible because this component declares an API of a component compatible with Java 16 and the consumer needed a runtime of a component compatible with Java 11

any other suggestions to try?

[mbonnin]

Does gradle-kotlin-buildozer really requires Java16 ?

[mbonnin]

There's an issue that by default, Gradle will use the version of java that was used to build the lib as the required version while that's not always the case

[William Reed]

just looked in their build.gradle and i see

java {
  toolchain {
    languageVersion.set(JavaLanguageVersion.of(16))
  }
}

not sure why though

[William Reed]

so seems intentional at least

[mbonnin]

Java16 can generate JDK8 compatible bytecode. Usually that's what you want as a lib author to have the widest compatibility as possible

[mbonnin]

I'd open an issue on this repo to confirm this was intentional.

[mbonnin]

Related issue on kotlinpoet: https://github.com/square/kotlinpoet/pull/1000

[William Reed]

yeah good idea

[William Reed]

issue created https://github.com/Faire/gradle-kotlin-buildozer/issues/8

[Vampire]

Tony's plugin might be what you are after: https://github.com/autonomousapps/dependency-analysis-android-gradle-plugin

[mbonnin]

Looks like buildozer is a Kotlin fork of Tony's plugin

[Vampire]

You think so?
It states it is a fork of https://github.com/gradle-dependency-analyze/gradle-dependency-analyze

[mbonnin]

Ooohhh right, I misread 🤦‍♂️ . Yea +1 to <https://github.com/autonomousapps/dependency-analysis-android-gradle-plugin|dependency-analysis-android-gradle-plugin>. I was expecting this one too much 🙂

[William Reed]

checking it out now android dance

[Vampire]

Is gradle-dependency-analzye and gradle-kotlin-buildozer even Android optimized?
Their readmes don't mention it while Tony explicitly states support.
Could be red herring though of course 🙂