Hi, I followed this <article> for a compiler plugin. I see the kotlin subplugin artifact get pulled ...

# compiler

[Justin Tullgren]

Hi, I followed this article for a compiler plugin. I see the kotlin subplugin artifact get pulled but I don’t see it getting applied to the compile toolchain, IE my commandlineprocessor never gets invoked. I matched the IDs and args but I don’t see it working. The article uses AutoService to wire dependencies but it doesn’t go into detail and i’m worried the plugin isn’t being found. Is there a way to let the kotlin compiler know about the processor or CompilerPluginRegistrar?

[Rick Clephas]

Yeah either by using something like AutoService or creating the file manually:
https://github.com/rickclephas/KMP-NativeCoroutines/blob/7f2c99fb4a93dcd5327fafd577aa3cd7fff47a30/kmp-nativecoroutines-compiler/src/main/resources/META-INF/services/org.jetbrains.kotlin.compiler.plugin.CompilerPluginRegistrar

[Justin Tullgren]

ok i’ll create that file and try it out. thanks!

[Justin Tullgren]

@Rick Clephas Unfortunately that didn’t seem to work. Nothing was logged or crashed (I threw an error to check). This is in an Android Jetpack Compose Context if that makes a difference

[Rick Clephas]

Could you possibly share some of the gradle and kotlin plugin code?
Otherwise feel free to checkout KMP-NativeCoroutines, it has a Kotlin compiler and Gradle plugin (and some other stuff, but that isn’t that relevant for this issue).

[Justin Tullgren]

gradle plugin build.gradle.kt

gradle plugin build.gradle.kt

[Justin Tullgren]

gradle plugin.cpp

gradle plugin.cpp

[Justin Tullgren]

kotlin plugin build.gradle.kt

kotlin plugin build.gradle.kt

[Justin Tullgren]

command line processor

command line processor

[Justin Tullgren]

using kotlin 1.8.22

[Rick Clephas]

So it seems you are not actually forwarding any options to your compiler plugin. In that case it might be expected that the commandlineprocessor isn't invoked (not 100% sure).
Why do you want it to be invoked if there aren't any options?

[Justin Tullgren]

I just want it to run. I tried with arguments before but it didn’t make a difference. I can try putting back but this is just an “apply” or “dont apply” situation, no configuration

[Rick Clephas]

Alright in that case I wouldn't worry about the CommandLineProcessor. I guess you also have a CompilerPluginRegistrar, right?
Do you have a META-INF file for that one as well?
https://github.com/rickclephas/KMP-NativeCoroutines/blob/7f2c99fb4a93dcd5327fafd577aa3cd7fff47a30/kmp-nativecoroutines-compiler/src/main/resources/META-INF/services/org.jetbrains.kotlin.compiler.plugin.CompilerPluginRegistrar

[Justin Tullgren]

yes, I have both.

[Justin Tullgren]

and they are in the jar

[Justin Tullgren]

i double checked for typos. i’ll drop the commandline processor and see where I get.

[Rick Clephas]

Hmm alright, in that case I am a little out of ideas. But like I said maybe if you compare the code to KMP-NativeCoroutines you might be able to see the difference.

[Justin Tullgren]

ya, i am comparing against that and ksp and some other plugins, not sure what i am doing wrong

[Justin Tullgren]

¯\_(ツ)_/¯

[Justin Tullgren]

thanks for your help!

[Justin Tullgren]

@Rick Clephas FYI I am not seeing the sub plugin get pulled at all anymore, so whatever mechanism that is does not seem to work. The Gradle plugin gets invoked but it never gets wired up to the kotlin compiler to ask for the sub plugin.

[Rick Clephas]

How are you testing this exactly?

[Justin Tullgren]

running gradle task build

[Justin Tullgren]

they are being added to the Android Compose app via an includedBuild option

[Rick Clephas]

In that case make sure to do a clean build, to prevent any caches from interfering. Note: includedBuilds aren't officially supported. However in my experience they work oke.

[Justin Tullgren]

ya i have been destroying everything I can find, including ~/.gradle/caches And I am making changes to the gradle plugin and seeing the updates. its just not pulling the kotlin plugin. i know there is new caches for kotlin but i am not sure where to delete those from