Is there a Multiplatform publication expert that could give us a couple advices for GitHub Actions +...

# multiplatform

[Edoardo Luppi]

Is there a Multiplatform publication expert that could give us a couple advices for GitHub Actions + Maven Central?
Would be immensely appreciated 😆
https://github.com/Strumenta/antlr-kotlin/pull/107

Targets are JVM, JS and Native (for the enabled native targets, see here)

[Oleg Yukhnevich]

I could take a look if needed in coming days 🙂
Or you can look here for inspiration:
• GitHub Actions workflow: https://github.com/whyoleg/cryptography-kotlin/blob/main/.github/workflows/publish-release.yml (everything is published from single macos host - I think, this should work at your side also)
• gradle maven publish setup: https://github.com/whyoleg/cryptography-kotlin/blob/main/build-logic/src/main/kotlin/ckbuild.publish.gradle.kts (multiplatform plugin configures most of the things, for JVM plugin there will be needed some additional setup)

[Edoardo Luppi]

Ah damn completely forgot to reply, sorry.
We're doing a bunch of tests but it's not easy lol, I didn't expect it to be this complex.

[Oleg Yukhnevich]

feel free to ping with questions if you need some help 🙂

[Edoardo Luppi]

@Oleg Yukhnevich see the last question that was posted on this channel by Federico

[Edoardo Luppi]

He's doing the tests

[Oleg Yukhnevich]

as far as I see in PR, he says that everything seems work with custom publish plugin 🙂

[Edoardo Luppi]

Ahh yup you're right, just noticed. I feel like it should work with the built in Maven publish plugin tho. But if that one is known and used in the community then I guess it's ok

[Oleg Yukhnevich]

yeah, this plugin just additionally configures maven-publish plugin
At my side, I prefer not to use it, as it's rather easy to do it without it
As I posted above, for multiplatform, I have single, rather small file with all logic needed for publication. For JVM you need only to create additional publication
But, this plugin should also work, and I know a lot of libraries published with it

[Edoardo Luppi]

Is there a way to test publishing to Central without actually publishing?
I don't have an account there and obviously I don't want to publish, but I'd like to experiment too

[Oleg Yukhnevich]

not really
there are 2 steps to check if everything is fine:
1. publish to maven local and check that everything works if to add it to dependencies to some artificial project
2. publish to maven central and check that there is no other errors in staging repository regarding signing, uploaded files and so on - so called maven central requirements

[Edoardo Luppi]

So after publish to staging, I can just get rid of everything, it's the same concept as for Git?

[Oleg Yukhnevich]

yeah
staging repository on maven central can be closed (releasing version to public) or deleted (remove artifacts)
you can also even add staging repository to you build script and check, that version uploaded to maven central is working (same as in step 1 above)

[Edoardo Luppi]

Ah, cool! Well thanks for all the clarifications!
I'm just too used to publish to private repos lol, never tried Central.