Getting stuck on trying to setup remote publishing...

# multiplatform

[napperley]

Getting stuck on trying to setup remote publishing to Bintray with a Kotlin Multiplatform project. Every time the publish Gradle task is run Gradle becomes stuck when the message Configure build.. is outputted.

[napperley]

Contents of build file.

build.gradle.kts

[napperley]

Tried with the bintray Gradle plugin however a empty package is uploaded. Looks like the plugin doesn't have Kotlin Multiplatform support.

[louiscad]

Do not use bintray gradle plugin to publish libraries. Why? Because it does not publish the needed gradle metadata that Kotlin Multiplatform relies on.

Instead, ensure you're using Gradle 6+ and use the built-in maven-publish plugin, which is also simpler to use, and is up to date with Gradle features since built-in.

You can find info about publishing by searching on this page: https://kotlinlang.org/docs/reference/building-mpp-with-gradle.html

[napperley]

Noticed that later on when some people/organisations (including JB) were using some horrendous workarounds (ugly hacks) to get Gradle metadata generated.

[napperley]

How do I upload/publish to Bintray without the extension?

[napperley]

What would this URL (https://bintray.com/kmetrics/kmetrics-core) translate to as the URL to use for uploading a Kotlin MPP library to Bintray?

[napperley]

Keep on getting a 404 from Bintray with the following error:

Execution failed for task ':publishKotlinMultiplatformPublicationToMavenRepository'.
> Failed to publish publication 'kotlinMultiplatform' to repository 'maven'
   > Could not PUT '<https://api.bintray.com/maven/kmetrics/kmetrics-core/kmetrics-core/org/kmetrics/kmetrics-core/0.1/kmetrics-core-0.1.pom>'. Received status code 404 from server: Not Found

[napperley]

Below is the publishing block in the build file:

publishing {
    repositories {
        maven {
            val subject = "kmetrics"
            val name = if (projectSettings.isDevVer) "${project.name}-dev" else project.name
            val repo = project.name
            url = uri("<https://api.bintray.com/maven/$subject/$repo/$name>")
            credentials {
                username = bintraySettings.user
                password = bintraySettings.key
            }
        }
    }
}

[louiscad]

If you have 404, then the built url is most likely wrong. I'd check again with what's expected there.

[napperley]

Ended up going with GitLab instead of Bintray, which isn't ideal (from a security POV) but it seems to get the job done. Bintray was becoming VERY frustrating to work with to point of insanity.

[napperley]

Updated build file that covers remote publishing to a GitLab Maven repository.

build.gradle.kts

[napperley]

The build file was updated based on the GitLab article for Maven repositories ( https://docs.gitlab.com/ee/user/packages/maven_repository/ ), this GitHub comment ( https://github.com/gradle/kotlin-dsl-samples/issues/1109#issuecomment-421321320 ), and this GitLab comment ( https://gitlab.com/gitlab-com/support-forum/issues/4162#note_122783149 ).

[napperley]

Package list on GitLab.

[napperley]

Linux X64 artifact info on GitLab.

[napperley]

Linux X64 file list on GitLab. Can someone from JetBrains please confirm if the files for the Linux X64 artifact are valid (does the list look correct?).

[napperley]

Can confirm the library (KMetrics Core) was successfully published to GitLab simple smile . Feel free to try out the library. To access the repository add the following block to the repositories block:

maven {
        url = uri("<https://gitlab.com/api/v4/projects/16972287/packages/maven>")
    }

After the repository is added insert the following line into the dependencies block (only the linuxX64 target is supported):

implementation("org.kmetrics:kmetrics-core:0.1")

[napperley]

The build file should look similar to the following:

// ...
repositories {
    mavenCentral()
    jcenter()
    maven {
        url = uri("<https://gitlab.com/api/v4/projects/16972287/packages/maven>")
    }
}

kotlin {
    linuxX64 {
        compilations.getByName("main") {
            dependencies {
                val kmetricsCoreVer = "0.1"
                implementation("org.kmetrics:kmetrics-core:$kmetricsCoreVer")
            }
        }
        // ...
    }
}